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Chen, Yin and Xu, Lie and Egea-Àlvarez, Agustí and Hodge, Eoin and Sajedi, Shahab and McCullough, Keith and McKeever, Paul and Smailes, Michael (2024) Stability assessment and improvement of MTDC system connected with offshore wind farms. IEEE Transactions on Power Delivery, 39 (6). pp. 3347-3360. ISSN 0885-8977

Wang, Yi and Zhang, Zhen and Xu, Yutao and Gao, Yuhua and Xu, Lie and Xu, Xiaoqi (2024) Topology and control of an arm multiplexing MMC with full-range voltage regulation. IEEE Transactions on Power Electronics, 39 (12). pp. 16135-16151. ISSN 0885-8993

Harrison, Sam and Soltoswski, Bartosz and Pepiciello, Antonio and Henao, Andres Camilo and Farag, Ahmed Y. and Beza, Mebtu and Xu, Lie and Egea-Àlvarez, Agustí and Cheah-Mañé, Marc and Gomis-Bellmunt, Oriol (2024) Review of multiport power converters for distribution network applications. Renewable and Sustainable Energy Reviews, 203. 114742. ISSN 1879-0690

Timmers, Victor and Egea Alvarez, Agusti and Gkountaras, Aris and Xu, Lie (2024) Control and power balancing of an off-grid wind turbine with co-located electrolyzer. IEEE Transactions on Sustainable Energy, 15 (4). pp. 2349-2360. ISSN 1949-3037

Wu, Yucai and Fan, Xuanjie and Xu, Lie and Lu, Weifu and Chen, Cong (2024) A new on-line diagnosis method for inter-turn short circuit of hydro-generator rotor windings using a flexible equivalent coil. IEEE Transactions on Energy Conversion. pp. 1-11. ISSN 0885-8969

Henderson, Callum and Egea-Alvarez, Agusti and Xu, Lie (2024) Analysis of optimal grid-forming converter penetration in AC connected offshore wind farms. International Journal of Electrical Power and Energy Systems, 157. 109851. ISSN 0142-0615

Timmers, Victor and Egea-Àlvarez, Agustí and Gkountaras, Aris and Xu, Lie (2024) Multi-objective optimization and comparison of DC/DC converters for offshore wind turbines. IEEE Access, 12. pp. 81236-81251. ISSN 2169-3536

Chaganti, Pavan and Yuan, Weijia and Xu, Lie and Zhang, Min and Hodge, Eoin and Fitzgerald, John and McKeever, Paul (2024) Transient analysis of HVDC HTS cable in power grid using discretized electrical-thermal model. IEEE Transactions on Applied Superconductivity, 34 (3). 4803806. ISSN 1051-8223

Wu, Dan and Seo, Gab-Su and Xu, Lie and Su, Chi and Kocewiak, Łukasz and Sun, Yin and Qin, Zian (2024) Grid integration of offshore wind power : standards, control, power quality and transmission. IEEE Open Journal of Power Electronics, 5. pp. 583-604. ISSN 2644-1314

Henderson, Callum and Egea-Alvarez, Agusti and Knueppel, Thyge and Yang, Guangya and Xu, Lie (2024) Grid strength impedance metric : an alternative to SCR for evaluating system strength in converter dominated systems. IEEE Transactions on Power Delivery, 39 (1). pp. 386-396. ISSN 0885-8977

Chen, Yinyu and Chen, Minwu and Xu, Lie and Liang, Zongyou (2024) Chance-constrained optimization of storage and PFC capacity for railway electrical smart grids considering uncertain traction load. IEEE Transactions on Smart Grid, 15 (1). pp. 286-298. 3276198. ISSN 1949-3053

Henderson, Callum and Egea-Alvarez, Agusti and Fekriasl, Sajjad and Knueppel, Thyge and Amico, Gabriele and Xu, Lie (2023) The effect of grid-connected converter control topology on the diagonal dominance of converter output impedance. IEEE Open Access Journal of Power and Energy, 10. pp. 617-628. ISSN 2687-7910

Chaganti, Pavan and Yuan, Weijia and Zhang, Min and Xu, Lie and Hodge, Eoin and Fitzgerald, John (2023) Modelling of a high-temperature superconductor HVDC cable under transient conditions. IEEE Transactions on Applied Superconductivity, 33 (5). 5400805. ISSN 1051-8223

Henderson, Callum and Egea-Alvarez, Agusti and Rull-Duran, Joan and Nedd, Marcel and Papadopoulos, Panagiotis N. and Xu, Lie (2023) Inertia and frequency support from Britain's AC powered trains. IEEE Transactions on Sustainable Energy, 14 (2). pp. 1259-1268. ISSN 1949-3037

Henderson, Callum and Egea-Alvarez, Agusti and Xu, Lie (2022) Analysis of multi-converter network impedance using MIMO stability criterion for multi-loop systems. Electric Power Systems Research, 211. 108542. ISSN 0378-7796

Timmers, Victor and Egea-Àlvarez, Agustí and Gkountaras, Aris and Li, Rui and Xu, Lie (2022) All-DC offshore wind farms : when are they more cost-effective than AC designs? IET Renewable Power Generation, 17 (10). pp. 2458-2470. ISSN 1752-1416

Cheah‐Mane, Marc and Egea‐Alvarez, Agusti and Prieto‐Araujo, Eduardo and Mehrjerdi, Hasan and Gomis‐Bellmunt, Oriol and Xu, Lie (2022) Modeling and analysis approaches for small‐signal stability assessment of power‐electronic‐dominated systems. Wiley Interdisciplinary Reviews: Energy and Environment, 12 (1). e453. ISSN 2041-8396

Wu, Yucai and Sun, Shuqiong and An, Qingfei and Lie, Xu (2022) Treatment strategy research on a squirrel-cage induction motor with broken rotor bar faults. Sensors, 22 (12). 4345. ISSN 1424-8220

Srinivas, Vedantham Lakshmi and Singh, Bhim and Mishra, Sukumar and Xu, Lie (2022) Harmonic voltage control in distributed generation systems using optimal switching vector strategy. IEEE Systems Journal, 16 (2). 1861 - 1872. ISSN 1932-8184

MacIver, Callum and Bell, Keith R.W. and Adam, Grain P. and Xu, Lie (2021) Electrical interconnectors : market opportunities, regulatory issues, technology considerations and implications for the GB energy sector. Energy Strategy Reviews, 38. 100721. ISSN 2211-467X

Xiang, Wang and Yuan, Weijia and Xu, Lie and Hodge, Eoin and Fitzgerald, John and McKeever, Paul and Bell, Keith (2021) DC fault study of a point-to-point HVDC system integrating offshore wind farm using high-temperature superconductor DC cables. IEEE Transactions on Energy Conversion. ISSN 0885-8969

Huang, Kai and Xu, Lie and Liu, Guangchen (2021) A diode-MMC AC/DC hub for connecting offshore wind farm and offshore production platform. Energies, 14 (13). 3759. ISSN 1996-1073

Huang, Xiaozuo and Chen, Dong and Xu, Lie (2021) Microgrid design using folded P-f droop and new grid interface unit to minimize the need for communication. International Journal of Electrical Power and Energy Systems, 130. 106949. ISSN 0142-0615

Yu, Lujie and Xu, Lie and Zhu, Jiebei and Li, Rui (2021) Impedance modelling and stability analysis of diode-rectifier based HVDC connected offshore wind farms. IEEE Transactions on Power Delivery. ISSN 0885-8977

Zhou, Ding and Li, Rui and Xu, Lie and Wang, Yi (2020) Energy based virtual damping control of FB-MMCs for HVDC grid. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Kervyn de Meerendre, Mathieu and Prieto-Araujo, Eduardo and Ahmed, Khaled H. and Gomis-Bellmunt, Oriol and Xu, Lie and Egea-Àlvarez, Agusti (2020) Review of local network impedance estimation techniques. IEEE Access, 8. pp. 213647-213661. ISSN 2169-3536

Chen, Yin and Xu, Lie and Egea Alvarez, Agusti and Marshall, Benjamin and Rahman, Md and Adeuyi, Oluwole D. (2020) MMC impedance modelling and interaction of converters in close proximity. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Zhang, Zehua and Chen, Dong and Givaki, Kamyab and Xu, Lie (2020) A less-intrusive approach to stabilize VSC transmission against highly variable grid strength. IEEE Journal of Emerging and Selected Topics in Power Electronics. 3030362. ISSN 2168-6777

Li, Rui and Xu, Lie (2020) A unidirectional hybrid HVDC transmission system based on diode rectifier and full-bridge MMC. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Zheng, Tao and Lv, Wenxuan and Wu, Qiong and Li, Rui and Liu, Xiaoxiao and Zhang, Chengqi and Xu, Lie (2020) An integrated control and protection scheme based on FBSM-MMC active current limiting strategy for DC distribution network. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Beltran, Hector and Harrison, Sam and Egea-Àlvarez, Agustí and Xu, Lie (2020) Techno-economic assessment of energy storage technologies for inertia response and frequency support from wind farms. Energies, 13 (13). 3421. ISSN 1996-1073

Huang, Kai and Xiang, Wang and Xu, Lie and Wang, Yi (2020) Hybrid AC/DC hub for integrating onshore wind power and interconnecting onshore and offshore DC networks. IET Renewable Power Generation. ISSN 1752-1416

Shi, Lei and Adam, Grain Philip and Li, Rui and Xu, Lie (2020) Enhanced control of offshore wind farms connected to MTDC network using partially selective DC fault protection. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Li, Bin and Li, Qingquan and Wang, Yizhen and Wen, Weijie and Li, Botong and Xu, Lie (2019) A novel method to determine droop coefficients of DC voltage control for VSC-MTDC system. IEEE Transactions on Power Delivery. ISSN 0885-8977 (In Press)

Yu, Lujie and Li, Rui and Xu, Lie and Adam, Grain P. (2019) Analysis and control of offshore wind farms connected with diode rectifier based HVDC system. IEEE Transactions on Power Delivery. ISSN 0885-8977

Li, Rui and Xu, Lie and YU, Lujie and Yao, Liangzhong (2019) A hybrid modular multilevel converter with reduced full-bridge submodules. IEEE Transactions on Power Delivery. ISSN 0885-8977 (In Press)

Abojlala, Khaled and Adam, Grain and Ahmed, Khaled Hani and Holliday, Derrick and Xu, Lie (2019) Generalised dq-dynamic phasor modelling of STATCOM connected to a grid for stability analysis. IET Power Electronics. ISSN 1755-4543

Kumar, Nishant and Singh, Bhim and Panigrahi, Bijaya Ketan and Xu, L. (2019) Leaky least logarithmic absolute difference based control algorithm and learning based InC MPPT technique for grid integrated PV system. IEEE Transactions on Industrial Electronics, 66 (11). pp. 9003-9012. 8605505. ISSN 0278-0046

Kumar, Shailendra and Singh, Bhim and Pal, Bikash and Xu, Lie and Al-Durra, Ahmed (2019) Energy efficient three-phase utility interactive residential microgrid with mode transfer capabilities at weak grid conditions. IEEE Transactions on Industry Applications, 55 (6). pp. 7082-7091. ISSN 0093-9994

Li, Rui and Yu, Lujie and Xu, Lie and Adam, Grain Philip (2019) Coordinated control of parallel DR-HVDC and MMC-HVDC systems for offshore wind energy transmission. IEEE Journal of Emerging and Selected Topics in Power Electronics. pp. 2572-2582. ISSN 2168-6777

Shi, Lei and Adam, Grain Philip and Li, Rui and Xu, Lie (2019) Control of offshore MMC during asymmetric offshore AC faults for wind power transmission. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Yu, Lujie and Li, Rui and Xu, Lie (2019) Hierarchical control of offshore wind farm connected by parallel diode-rectifier based HVDC and HVAC links. IET Renewable Power Generation, 13 (9). pp. 1493-1502. ISSN 1752-1416

Liu, Guangchen and Hu, Jianwen and Tian, Guizhen and Xu, Lie and Wang, Shengtie (2019) High voltage ride through control of PMSG-based wind turbine generation system using supercapacitor. Active and Passive Electronic Components, 2019. 3489252. ISSN 1563-5031

Adam, Grain Philip and Alsokhiry, Fahad and Abdelsalam, Ibrahim and Fletcher, John and Xu, Lie and Al-Turki, Yusuf (2019) Hybrid converter topologies for dc transmission systems. IET Power Electronics, 12 (3). pp. 607-619. ISSN 1755-4543

Li, R. and YU, L. and Xu, L. (2019) Operation of offshore wind farms connected with DRU-HVDC transmission systems with special consideration of faults. Global Energy Interconnection, 1 (5). pp. 608-617. ISSN 2590-0358

Xiang, Wang and Zhan, Junjie and Xu, Lie and Yang, Saizhao and Lin, Weixing and Wen, Jinyu (2018) A transient voltage based DC fault line protection scheme for MMC based DC grid embedding DC breakers. IEEE Transactions on Power Delivery. pp. 1-12. ISSN 0885-8977

Li, Rui and Yu, Lujie and Xu, Lie (2018) Offshore AC fault protection of diode rectifier unit based HVDC system for wind energy transmission. IEEE Transactions on Industrial Electronics. ISSN 0278-0046 (In Press)

Jing, Yiran and Li, Rui and Xu, Lie and Wang, Yi (2018) Enhanced AC voltage and frequency control of offshore MMC station for wind farm connection. IET Renewable Power Generation. ISSN 1752-1416 (In Press)

Xiang, Wang and Ling, Weixing and Xu, Lie and Wen, Jingyu (2018) Enhanced independent pole control of hybrid MMC-HVDC system. IEEE Transactions on Power Delivery, 33 (2). pp. 861-872. ISSN 0885-8977

Wang, Yi and Wang, Chen and Xu, Lie and Meng, Jianhui and Hei, Yang (2018) Adjustable inertial response from the converter with adaptive droop control in DC grids. IEEE Transactions on Smart Grid. ISSN 1949-3053

Givaki, K. and Chen, D. and Xu, L. (2018) Current error based compensations for VSC current control in weak grids for wind farm applications. IEEE Transactions on Sustainable Energy. ISSN 1949-3037

Talapur, Girish G. and Suryawanshi, H. M. and Xu, Lie and Shitole, Amardeep B. (2018) A reliable micro-grid with seamless transition between grid connected and islanded mode for residential community with enhanced power quality. IEEE Transactions on Industry Applications. ISSN 0093-9994

Wang, Yi and Hu, Can and Ding, Ruoyu and Xu, Lie and Fu, Chao and Yang, Erlin (2018) A nearest level PWM method for the MMC in DC distribution grids. IEEE Transactions on Power Electronics. ISSN 0885-8993

Li, Rui and Xu, Lie (2017) Review of DC fault protection for HVDC grids. Wiley Interdisciplinary Reviews: Water, 7 (2). e278. ISSN 2049-1948

Yu, Lujie and Li, Rui and Xu, Lie (2017) Distributed PLL-based control of offshore wind turbines connected with diode-rectifier based HVDC systems. IEEE Transactions on Power Delivery. ISSN 0885-8977

Adam, Grain Philip and Abdelsalam, Ibrahim and Xu, Lie and Fletcher, John and Burt, Graeme and Williams, Barry (2017) Multi-tasking dc-dc and dc-ac converters for dc voltage tapping and power control in highly meshed multi-terminal HVDC networks. IET Power Electronics. ISSN 1755-4543

Li, Rui and Xu, Lie and Guo, Deyang (2017) Accelerated switching function model of hybrid MMCs for HVDC system simulation. IET Power Electronics. ISSN 1755-4543

Adam, Grain Philip and Abdelsalam, Ibrahim and Fletcher, John Edward and Xu, Lie and Burt, Graeme M. and Holliday, Derrick and Finney, Stephen (2017) Improved two-level voltage source converter for high-voltage direct current transmission systems. IEEE Journal of Emerging and Selected Topics in Power Electronics. ISSN 2168-6777

Li, Rui and Xu, Lie and Yao, Liangzhong (2017) DC fault detection and location in meshed multi-terminal HVDC systems based on DC reactor voltage change rate. IEEE Transactions on Power Delivery, 32 (3). pp. 1516-1526. ISSN 0885-8977

Xu, Guoyi and Xu, Lie (2017) Improved use of wind turbine kinetic energy for system frequency support. IET Renewable Power Generation, 11 (8). pp. 1094-1100. ISSN 1752-1416

Li, Rui and Fletcher, John E. and Xu, Lie and Williams, Barry W. (2017) Enhanced flat-topped modulation for MMC control in HVDC transmission systems. IEEE Transactions on Power Delivery, 32 (1). pp. 152-161. ISSN 0885-8977

Rahman, Md Habibur and Xu, Lie and Yao, Liangzhong (2016) Protection of large partitioned MTDC networks using DC-DC converters and circuit breakers. Protection and Control of Modern Power Systems. pp. 1-9. ISSN 2367-0983

Chen, Dong and Xu, Lie and Zhang, Wendian (2016) Active distribution power system with multi-terminal DC links. IET Renewable Power Generation. ISSN 1752-1416

Suo, Zhiwen and Li, Gengyin and Li, Rui and Xu, Lie and Wang, Weisheng and Chi, Yongning and Sun, Wei (2016) Submodule configuration of HVDC-DC auto transformer considering DC fault. IET Power Electronics. pp. 1-24. ISSN 1755-4543 (In Press)

Suo, Zhiwen and Li, Gengyin and Xu, Lie and Li, Rui and Wang, Weisheng and Chi, Yongning (2016) Hybrid MMC based multi-terminal DC/DC converter with minimized FBSMs ratio considering DC fault isolation. IET Renewable Power Generation. ISSN 1752-1416

Rafferty, J. and Xu, L. and Wang, Y. and Xu, G. and Alsokhiry, F. (2016) Frequency support using multi-terminal HVDC systems based on DC voltage manipulation. IET Renewable Power Generation. ISSN 1752-1416 (In Press)

Li, Rui and Xu, Lie and Yao, Liangzhong and Williams, Barry (2016) Active control of DC fault currents in DC solid-state transformers during ride-through operation of multi-terminal HVDC systems. IEEE Transactions on Energy Conversion. ISSN 0885-8969

Chen, Dong and Xu, Lie and Yu, James (2016) Adaptive DC stabilizer with reduced DC fault current for active distribution power system application. IEEE Transactions on Power Systems. ISSN 0885-8950

Li, Rui and Xu, Lie and Holliday, Derrick and Page, Frederick and Finney, Stephen J. and Williams, Barry W. (2016) Continuous operation of radial multi-terminal HVDC systems under DC fault. IEEE Transactions on Power Delivery, 31 (1). pp. 351-361. ISSN 0885-8977

Zeng, Rong and Xu, Lie and Yao, Liangzhong and Finney, Stephen J. (2016) Analysis and control of modular multilevel converters under asymmetric arm impedance conditions. IEEE Transactions on Industrial Electronics, 63 (1). pp. 71-81. ISSN 0278-0046

Li, Rui and Fletcher, John E. and Xu, Lie and Holliday, Derrick and Williams, Barry W. (2015) A hybrid modular multilevel converter with novel three-level cells for DC fault blocking capability. IEEE Transactions on Power Delivery, 30 (4). pp. 2017-2026. ISSN 0885-8977

Wang, Yi and Meng, Jianhui and Zhang, Xiangyu and Xu, Lie (2015) Control of PMSG-based wind turbines for system inertial response and power oscillation damping. IEEE Transactions on Sustainable Energy, 6 (2). pp. 556-574. ISSN 1949-3037

Rafferty, John and Xu, Lie and Morrow, John (2015) Analysis of voltage source converter-based high-voltage direct current under DC line-to-earth fault. IET Power Electronics, 8 (3). 428–438. ISSN 1755-4543

Bell, K.R.W. and Xu, Lie and Houghton, T. (2015) Considerations in design of an offshore network. CIGRE Science and Engineering, 1. pp. 79-92. ISSN 1286-1146

Zeng, Rong and Xu, Lie and Yao, Liangzhong and Finney, Stephen J. and Wang, Yi (2015) Hybrid HVDC for integrating wind farms with special consideration on commutation failure. IEEE Transactions on Power Delivery. ISSN 0885-8977

Zeng, Rong and Xu, Lie and Yao, Liangzhong and Morrow, D John (2015) Pre-charging and DC fault ride-through of hybrid MMC based HVDC systems. IEEE Transactions on Power Delivery. ISSN 0885-8977

Zeng, Rong and Xu, Lie and Yao, Liangzhong and Williams, Barry W. (2014) Design and operation of a hybrid modular multilevel converter. IEEE Transactions on Power Electronics, 30 (3). pp. 1137-1146. 6807785. ISSN 0885-8993

Wu, Jie and Wang, Zhixin and Xu, Lie and Wang, Guoqiang (2014) Key technologies of VSC-HVDC and its application on offshore wind farm in China. Renewable and Sustainable Energy Reviews, 36. pp. 247-255. ISSN 1879-0690

Rafferty, John and Morrow, D John and Xu, Lie (2013) Analysis of VSC-based HVDC system under DC faults. 39th Annual Conference of the IEEE Industrial Electronics Society IECON 2013. 459 - 464. ISSN 1553-572X

Xu, Guoyi and Xu, Lie and Morrow, D John (2013) Power oscillation damping using wind turbines with energy storage systems. IET Renewable Power Generation, 7 (5). pp. 449-457. ISSN 1752-1416

Martinez, M.I. and Susperregui, Ann and Tapia, Gerardo and Xu, Lie (2013) Sliding-mode control of a DFIG-based wind turbine under non-ideal grid voltages. IET Renewable Power Generation, 7 (4). pp. 370-379. ISSN 1752-1416

Xu, Boqiang and Sun, Liling and Xu, Lie and Xu, Guoyi (2013) Improvement of the Hilbert method via ESPRIT for detecting rotor fault in induction motors at low slip. IEEE Transactions on Energy Conversion, 28 (1). pp. 225-233. ISSN 0885-8969

Chen, Dong and Xu, Lie and Yao, Liangzhong (2013) DC voltage variation based autonomous control of DC microgrids. IEEE Transactions on Power Delivery, 28 (2). pp. 637-648. ISSN 0885-8977

Chen, Dong and Xu, Lie (2012) Autonomous DC voltage control of a DC microgrid with multiple slack terminals. IEEE Transactions on Power Systems, 27 (4). pp. 1897-1905. ISSN 0885-8950

Xu, Boqiang and Sun, Liling and Xu, Lie and Xu, Guoyi (2012) An ESPRIT-SAA-based detection method for broken rotor bar fault in induction motors. IEEE Transactions on Energy Conversion, 27 (3). pp. 654-660. ISSN 0885-8969

Xu, Guoyi and Xu, Lie and Morrow, John and Chen, Dong (2012) Coordinated DC voltage control of wind turbine with embedded energy storage system. IEEE Transactions on Energy Conversion, 27 (4). pp. 1036-1045. ISSN 0885-8969

Xu, Lie and Chen, Dong (2011) Control and operation of a DC microgrid with variable generation and energy storage. IEEE Transactions on Power Delivery, 26 (4). pp. 2513-2522. ISSN 0885-8977

Tu, Qingrui and Xu, Zheng and Xu, Lie (2011) Reduced switching-frequency modulation and circulating current suppression for modular multilevel converters. IEEE Transactions on Power Delivery, 26 (3). pp. 2009-2017. ISSN 0885-8977

Xu, Lie and Yao, Liangzhong (2011) DC voltage control and power dispatch of a multi-terminal HVDC system for integrating large offshore wind farms. IET Renewable Power Generation, 5 (3). pp. 223-233. ISSN 1752-1416

Hu, Jiabing and He, Yikang and Xu, Lie (2010) Improved rotor current control of wind turbine driven doubly-fed induction generators during network voltage unbalance. Electric Power Systems Research, 80 (7). pp. 847-856. ISSN 0378-7796

Foster, Sarah and Xu, Lie and Fox, Brendan (2010) Coordinated reactive power control for facilitating fault ride-through of DFIG and FSIG based wind farms. IET Renewable Power Generation, 4 (2). pp. 128-138. ISSN 1752-1416

Zhi, Dawei and Xu, Lie and Williams, Barry (2010) Model-based predictive direct power control of doubly fed induction generators. IEEE Transactions on Power Electronics, 25 (2). pp. 341-351. ISSN 0885-8993

Wang, Yi and Xu, Lie (2010) Coordinated control of DFIG and FSIG-based wind farms under unbalanced grid conditions. IEEE Transactions on Power Delivery, 25 (1). pp. 367-377. ISSN 0885-8977

Hu, Jiabing and He, Yikang and Xu, Lie and Zhi, Dawei (2010) Predictive current control of grid-connected voltage source converters during network unbalance. IET Power Electronics, 3 (5). pp. 690-701. ISSN 1755-4543

Xu, Lie and Zhi, Dawei and Williams, B.W. (2009) Predictive current control of doubly fed induction generators. IEEE Transactions on Industrial Electronics, 56 (10). pp. 4143-4153. ISSN 0278-0046

Hu, J.B. and Zhang, Wei and Wang, Hong-sheng and He, Y.K. and Xu, L. (2009) Proportional integral plus multi-frequency resonant current controller for grid-connected voltage source converter under imbalanced and distorted supply voltage conditions. Journal of Zhejiang University - Science A, 10 (10). pp. 1532-1540. ISSN 1673-565X

Zhi, Dawei and Xu, Lie and Williams, Barry (2009) Improved direct power control of grid connected DC/AC converters. IEEE Transactions on Power Electronics, 24 (5). pp. 1280-1292. ISSN 0885-8993

Wang, Yi and Xu, L. and Williams, B.W. (2009) Compensation of network voltage unbalance using doubly fed induction generator-based wind farms. IET Renewable Power Generation, 3 (1). pp. 12-22. ISSN 1752-1416

Hu, J.B. and He, Y.K. and Xu, L. and Williams, B.W. (2009) Improved control of DFIG systems during network unbalance using PI-R current regulators. IEEE Transactions on Industrial Electronics, 56 (2). pp. 439-451. ISSN 0278-0046

Hu, J.B. and He, Y.K. and Xu, L. (2008) Dynamic modeling and direct power control of wind turbine driven DFIG under unbalanced network voltage conditions. Journal of Zhejiang University. Science A, 9 (12). pp. 1731-1740. ISSN 1673-565X

Xu, L. (2008) Enhanced control and operation of DFIG-based wind farms during network unbalance. IEEE Transactions on Energy Conversion, 23 (4). pp. 1073-1081. ISSN 0885-8969

Xu, L. (2008) Coordinated control of DFIG's rotor and grid side converters during network unbalance. IEEE Transactions on Power Electronics, 23 (3). pp. 1041-1049. ISSN 0885-8993

Xu, L. and Yao, L. and Sasse, C. (2007) Grid integration of large DFIG-based wind farms using VSC transmission. IEEE Transactions on Power Systems, 22 (3). pp. 976-984. ISSN 0885-8950

Zhi, D. and Xu, L. (2007) Direct power control of DFIG with constant switching frequency and improved transient performance. IEEE Transactions on Energy Conversion, 22 (1). pp. 110-118. ISSN 0885-8969

Xu, L. and Wang, Y. (2007) Dynamic modeling and control of DFIG-based wind turbines ynder unbalanced network conditions. IEEE Transactions on Power Systems, 22 (1). pp. 314-323. ISSN 0885-8950

Xu, L. and Agelidis, V.G. (2007) VSC transmission system using flying capacitor multilevel converters and hybrid PWM control. IEEE Transactions on Power Delivery, 22 (1). pp. 693-702. ISSN 0885-8977

Xu, L. and Cartwright, P. (2006) Direct active and reactive power control of DFIG for wind energy generation. IEEE Transactions on Energy Conversion, 21 (3). pp. 750-758. ISSN 0885-8969

Dinic, N. and Fox, B. and Flynn, D. and Xu, L. and Kennedy, A. (2006) Increasing wind farm capacity. IEE Proceedings Generation Transmission and Distribution, 153 (4). pp. 493-498. ISSN 1350-2360

Xu, L. and Andersen, B. (2006) Grid integration of large offshore wind farms using HVDC. Wind Energy, 9. pp. 371-382. ISSN 1095-4244

Xu, L. and Andersen, B. and Cartwright, P. (2005) VSC transmission operating under unbalanced AC conditions - analysis and control design. IEEE Transactions on Power Delivery, 20 (1). pp. 427-434. ISSN 0885-8977

Xu, L. and Andersen, B. and Cartwright, P. (2005) Multi-level converter based VSC transmission operating under fault AC conditions. IEE Proceedings Generation Transmission and Distribution, 152 (2). pp. 185-193. ISSN 1350-2360

Andersen, B. and Xu, L. (2004) Hybrid HVDC system for power transmission to island networks. IEEE Transactions on Power Delivery, 19 (4). pp. 1884-1890. ISSN 0885-8977

Xu, L. and Agelidis, V.G. (2004) Active capacitor voltage control of flying capacitor multilevel converters. IEE Proceedings Electric Power Applications, 151 (3). pp. 313-321. ISSN 1350-2352

Kirby, N. and Xu, L. and Lucket, M. and Siepmann, W. (2002) HVDC transmission for large offshore windfarms. Power Engineering Journal, 16 (3). pp. 135-141. ISSN 0950-3366

Andersen, B. and Xu, L. and Horton, P. and Cartwright, P. (2002) Topology for VSC transmission. Power Engineer, 16. pp. 142-150. ISSN 1479-8344

Xu, L. and Agelidis, V.G. (2002) A flying capacitor multilevel converter based UPFC. IEE Proceedings Electric Power Applications, 149. pp. 304-310. ISSN 1350-2352

Xu, L. and Agelidis, V.G. and Acha, E. (2001) Development considerations of DSP-controlled PWM VSC-based STATCOM. IEE Proceedings Electric Power Applications, 148 (5). pp. 449-455. ISSN 1350-2352

Xu, Lie and Zhu, Z.Q. and Howe, D. (2000) Acoustic noise radiated from direct torque controlled induction motor drives. IET Electric Power Applications, 147 (6). pp. 491-496. ISSN 1751-8660

Lo, W.C. and Chan, C.C. and Zhu, Z.Q. and Xu, L. and Howe, D. and Chau, K.T. (2000) Acoustic noise radiated by PWM-controlled induction machine drives. IEEE Transactions on Industrial Electronics, 47 (4). ISSN 0278-0046

Book Section

Henderson, Callum and Egea-Alvarez, Agusti and Papadopoulos, Panagiotis and Li, Rui and Xu, Lie and Da Silva, Ricardo and Kinsella, Anthony and Gutierrez, Isaac and Pabat-Stroe, Razan; (2022) Exploring an impedance-based SCR for accurate representation of grid-forming converters. In: 2022 IEEE Power and Energy Society General Meeting, PESGM 2022. IEEE Power and Energy Society General Meeting . IEEE, USA, pp. 1-5. ISBN 9781665408233

Zhang, Taibo and Xu, Lie; (2022) Grid forming control for solid-state transformer operating in islanding and grid connected conditions. In: 11th International Conference on Power Electronics, Machines and Drives (PEMD 2022). IET, GBR, pp. 235-239. ISBN 9781839537189

Henderson, Callum and Egea Alvarez, Agusti and Xu, Lie; (2021) PN admittance characterisation of grid supporting VSC controller with negative sequence regulation and inertia emulation. In: 2021 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe). IEEE, Piscataway, N.J.. ISBN 9789075815375

Liu, Di and Hong, Qiteng and Dysko, Adam and Egea Alvarez, Agusti and Xu, Lie and Booth, Campbell and Cowan, Ian and Ponnalagan, Bharath; (2021) A flexible real time network model for evaluating HVDC systems' impact on AC protection performance. In: The 9th Renewable Power Generation Conference (RPG Dublin Online 2021). IET, IRL, pp. 216-221. ISBN 9781839535048

Lu, Yuan and Xu, Lie; (2020) Generalised grid-forming VSC control for grid connection and island network. In: The 10th International Conference on Power Electronics, Machines and Drives (PEMD 2020). IET, GBR, pp. 832-837. ISBN 9781839535420

Givaki, Kamyab and Chen, Dong and Xu, Lie and Xu, Yan; (2018) An alternative current-error based control for VSC integration to weak grid. In: 2018 IEEE Power & Energy Society General Meeting (PESGM). IEEE, USA.

Guo, Deyang and Rahman, M.H. and Adam, G.P. and Xu, Lie and Emhemed, Abdullah and Burt, Graeme and Audichya, Yash; (2018) Interoperability of different voltage source converter topologies in HVDC grids. In: The 15th International Conference on AC and DC Power Transmission. IET, GBR. (In Press)

Guo, Deyang and Rahman, M.H. and Adam, G.P. and Xu, Lie and Emhemed, Abdullah and Burt, Graeme and Audichya, Yash; (2018) Detailed quantitative comparison of half-bridge modular multilevel converter modelling methods. In: The 14th IET International Conference on AC and DC Power Transmission (ACDC 2018). IET, CHN, pp. 1-8.

Rahman, Md Habibur and Li, Rui and Yao, Liangzhong and Xu, Lie; (2018) Protection and post-fault recovery of large HVDC networks using partitioning and fast acting DC breakers at strategic locations. In: The 14th IET International Conference-AC and DC Power Transmission (ACDC 2018). IET, CHN, pp. 1-8. (In Press)

Rahman, Md Habibur and Xu, Lie and Yao, Liangzhong; (2016) DC fault protection strategy considering DC network partition. In: 2016 Power and Energy Society General Meeting (PESGM). IEEE, USA. ISBN 978-1-5090-4168-8

Yao, Liangzhong and Wu, Jing and Xu, Lie and Rahman, Md Habibur; (2016) Studies of coordinated zone protection strategies for DC grid. In: 2016 IEEE 8th International Power Electronics and Motion Control Conference (IPEMC-ECCE Asia). IEEE, CHN, pp. 1-6. ISBN 9781509012107

Finney, Stephen and Xu, Lie and Bell, Keith; Liu, Chen-Ching, ed. (2016) HVDC Networks for OffshoreWind Power. In: Smart Grid Handbook. John Wiley & Sons Inc.. ISBN 9781118755488

Givaki, Kamyab and Xu, Lie; (2015) Stability analysis of large wind farms connected to weak AC networks incorporating PLL dynamics. In: International Conference on Renewable Power Generation (RPG 2015). IET, CHN. ISBN 978-1-78561-040-0

Chen, Dong and Xu, Lie and Zhang, Wendian; (2015) Active distribution power system with multi-terminal MVDC links. In: International Conference on Renewable Power Generation (RPG 2015). IET, CHN. ISBN 978-1-78561-040-0

Zeng, Rong and Xu, Lie and Yao, Liangzhong; (2015) DC/DC converters based on hybrid MMC for HVDC grid interconnection. In: 11th IET International Conference on AC and DC Power Transmission. IET, pp. 1-6. ISBN 978-1-84919-982-7

Page, Frederick and Adam, Grain and Finney, Stephen and Holliday, Derrick and Xu, Lie; (2014) DC fault parameter sensitivity analysis. In: Proceedings of the 12th IET International Conference on Developments in Power System Protection (DPSP 2014). Institution of Engineering and Technology, GBR. ISBN 9781849198349

Gao, Yang and Bazargan, Masoud and Xu, Lie and Liang, Wuxing; (2013) DC fault analysis of MMC based HVDC system for large offshore wind farm integration. In: 2nd IET Renewable Power Generation Conference (RPG 2013). IEEE, CHN. ISBN 978-1-84919-758-8

Xu, Guoyi and Xu, Lie and Morrow, D. John; (2013) System frequency support using wind turbine kinetic energy and energy storage system. In: 2nd IET Renewable Power Generation Conference (RPG 2013). IEEE, CHN. ISBN 978-1-84919-758-8

Rafferty, John and Xu, Lie and Morrow, D John; (2012) DC fault analysis of VSC based multi-terminal HVDC systems. In: 10th IET International Conference on AC and DC Power Transmission (ACDC 2012). IET, GBR, pp. 1-6. ISBN 978-1-84919-700-7

Chen, Dong and Xu, Lie and Yao, Liangzhong; (2012) DC network stability and dynamic analysis using virtual impedance method. In: IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society. IEEE, CAN, 5625 - 5630. ISBN 978-1-4673-2419-9

Xu, Lie and Yao, Liangzhong; Muyeen, S.M., ed. (2012) Fault ride through of HVDC connected large offshore wind farms. In: Wind Energy Conversion System. Springer London, London, pp. 415-430. ISBN 978-1-4471-2200-5

Chen, Dong and Xu, Lie; (2011) High performance predictive current control of bi-directional DC-DC converters for DC micro grid application. In: 2011 International Conference on Electrical Machines and Systems (ICEMS). IEEE, CHN. ISBN 978-1-4577-1044-5

Xu, Guoyi and Xu, Lie and Morrow, D John; (2011) Wind turbines with energy storage for power smoothing and FRT enhancement. In: 2011 IEEE Power and Energy Society General Meeting. IEEE, GBR. ISBN 978-1-4577-1000-1

Xu, Lie; Sathyajith, Mathew and Philip, Geeta Susan, eds. (2011) Grid integration of offshore wind farms. In: Advances in Wind Energy Conversion Technology. Environmental Science and Engineering . Springer-Verlag, pp. 177-193. ISBN 978-3-540-88257-2

Wang, Yi and Zhu, X and Xu, Lie and Li, H.; (2010) Contribution of VSC-HVDC connected wind farms to grid frequency regulation and power damping. In: IECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society. IEEE, USA, pp. 397-402. ISBN 978-1-4244-5225-5

Xu, Lie and Yao, Liangzhong and Bazargan, M. and Wang, Yi; (2010) The role of multiterminal HVDC for wind power transmission and AC network support. In: 2010 Asia-Pacific Power and Energy Engineering Conference (APPEEC). IEEE, CHN. ISBN 978-1-4244-4812-8

Foster, Sarah and Xu, Lie and Fox, Brendan; (2009) Behaviour and protection of doubly-fed induction generators during network faults. In: PES '09. IEEE Power & Energy Society General Meeting, 2009. IEEE. ISBN 9781424442416

Xu, Lie and Yao, Liangzhong and Bazargan, Masoud; (2009) DC grid management of a multi-terminal HVDC transmission system for large offshore wind farms. In: SUPERGEN '09. International Conference on Sustainable Power Generation and Supply, 2009. IEEE, CHN. ISBN 978-1-4244-4934-7

Hu, Jiabing and He, Yikang and Wang, Hong-sheng and Xu, Lie; (2009) Improved rotor current control of wind turbine driven doubly fed induction generators during network unbalance. In: International Conference on Sustainable Power Generation and Supply, 2009. UNSPECIFIED, CHN. ISBN 978-1-4244-4934-7

Xiong, L and Xu, B and Gao, H and Xu, Lie; (2009) A novel algorithm of switched reluctance generator for maximum power point tracking in wind turbine application. In: SUPERGEN '09. International Conference on Sustainable Power Generation and Supply, 2009. IEEE, CHN. ISBN 978-1-4244-4934-7

Zhi, Dawei and Xu, Lie and Williams, Barry; (2008) Improved direct power control of three-phase PWM converters. In: 34th Annual Conference of IEEE Industrial Electronics, 2008. IEEE, USA, 778 - 783. ISBN 978-1-4244-1767-4

Zhi, Dawei and Xu, Lie and Williams, Barry and Yao, Liangzhong and Bazargan, Masoud; (2008) A new direct power control strategy for grid connected voltage source converters. In: International Conference on Electrical Machines and Systems, 2008. ICEMS 2008. IEEE, CHN, 1157 - 1162. ISBN 978-1-4244-3826-6

Wang, Yi and Xu, Lie and Williams, Barry; (2008) Improved operation of DFIG and FSIG-based wind farms during network unbalance. In: 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. IEEE, USA. ISBN 978-1-4244-1905-0

Xu, Lie and Yao, Liangzhong and Williams, Barry; (2008) Multi-terminal DC transmission systems for connecting large offshore wind farms. In: 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. IEEE, USA. ISBN 978-1-4244-1905-0

Wang, Yi and Xu, Lie and Williams, Barry; (2008) Control of DFIG-based wind farms for network unbalance compensation. In: IEEE Power Electronics Specialists Conference, 2008. IEEE, GRC, 113 - 119. ISBN 978-1-4244-1667-7

Foster, Sarah and Xu, Lie and Fox, Brendan; (2008) Control of an LCC HVDC system for connecting large offshore wind farms with special consideration of grid fault. In: 2008 IEEE Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century. IEEE, USA. ISBN 978-1-4244-1905-0

Wang, Yi and Xu, L.; (2007) Control of DFIG based wind generation systems under unbalanced network supply. In: IEEE IEMDC 2007. IEEE, Antalya, Turkey, pp. 430-435. ISBN 9781424407422

Xu, Lie and Yao, Liangzhong and Sasse, Christian; (2006) Power electronics options for large wind farm integration : VSC-based HVDC transmission. In: 2006 IEEE/PES power systems conference and exposition proceedings. IEEE, USA, pp. 760-767. ISBN 9781424401772

Xu, L. and Acha, E. and Agelidis, V.G.; (2001) A new synchronous frame-based control strategy for a series voltage and harmonic compensator. In: Proceedings of the sixteenth annual IEEE applied power electronics conference and exposition, 2001. APEC 2001. IEEE, USA, pp. 1274-1280. ISBN 0780366182

Conference or Workshop Item

Timmers, Victor and Egea-Álvarez, Agustí and Gkountaras, Aris and Xu, Lie (2022) Review and comparison of single and dual active bridge converters for MVDC-connected wind turbines. In: 21st Wind & Solar Integration Workshop, 2022-10-12 - 2022-10-14.

Naderi, Yahya and Sims, Ryan and Coffele, Federico and Xu, Lie (2020) Active power quality management (APQM) in smart micro grids. In: CIRED Workshop 2020, 2020-09-22 - 2020-09-23.

Amico, Gabriele and Egea Alvarez, Agusti and Xu, Lie and Brogan, Paul (2019) Stability margin definition for a converter-grid system based on diagonal dominance property in the sequence-frame. In: 21st European Conference on Power Electronics and Applications (EPE2019), 2019-09-02 - 2019-09-06.

Leavy, Aaron S. C. and Xu, Lie and Filizadeh, Shaahin and Gole, Aniruddha M. (2019) Simulation-based optimisation of LCC-HVDC controller parameters using surrogate model solvers. In: 20th IEEE Workshop on Control and Modeling for Power Electronics, 2019-06-17 - 2019-06-20, University of Toronto.

Li, Rui and Yu, Lujie and Xu, Lie and Adam, Grain Philip (2018) DC fault protection of diode rectifier unit based HVDC system connecting offshore wind farms. In: 2018 IEEE Power & Energy Society General Meeting, 2018-08-05 - 2018-08-09, Oregon Convention Center.

Yu, Lujie and Li, Rui and Xu, Lie (2018) Parallel operation of diode-rectifier based HVDC link and HVAC link for offshore wind power transmission. In: The 7th International Conference on Renewable Power Generation (RPG2018), 2018-09-26 - 2018-09-27, DTU, Lyngby.

Zhou, D. and Rahman, M. H. and Xu, L. and Wang, Y. (2018) Impact of DC protection strategy of large HVDC network on frequency response of the connected AC system. In: The 9th International Conference on Power Electronics, Machines and Drives, 2018-04-17 - 2018-04-19. (In Press)

Jing, Yiran and Li, Rui and Xu, Lie and Wang, Yi (2017) Enhanced AC voltage and frequency control on offshore MMC station for wind farm. In: The 6th Renewable Power Generation Conference (RPG 2017), 2017-10-19 - 2017-11-20.

Abojlala, Khaled Issa and Holliday, Derrick and Xu, Lie (2017) Stability norms control using the virtual impedance concept for power frequency applications. In: 19th International Symposium Power Electronics, 2017-10-19 - 2017-10-22.

Abojlala, Khaled Issa and Holliday, Derrick and Xu, Lie (2016) Transient analysis of interline dynamic voltage restorer using dynamic phasor representation. In: The Seventeenth IEEE Workshop on Control and Modeling for Power Electronics, 2016-06-27 - 2016-06-30, Trondheim, Norway. (In Press)

Xu, L. and Rafferty, J. and Wang, Y. and Xu, G. (2015) MTDC systems for frequency support base on DC voltage manipulation. In: IET Renewable Power Generation (RPG), 2015-10-17 - 2015-10-18.

Rahman, Md Habibur and Xu, Lie and Bell, Keith (2015) DC fault protection of multi-terminal HVDC systems using DC network partition and DC circuit breakers. In: Sixth Protection, Automation and Control World Conference (PAC World 2015), 2015-06-29 - 2015-07-03, Technology and Innovation Centre, University of Strathclyde.

Page, Frederick and Finney, Stephen and Holliday, Derrick and Xu, Lie and Williams, Barry (2015) Optimisation of passive system components to minimise DC circuit breaker stresses in multi-terminal HVDC systems. In: Cigré International Symposium : Across Borders - HVDC Systems and Market Integration, 2015-05-27 - 2015-05-28.

Ased, G.P. and Li, R. and Holliday, D. and Finney, S. and Xu, L. and Williams, B.W. and Kuroda, K. and Yamamoto, R. and Ito, H. (2014) Continued operation of multi-terminal HVDC networks based on modular multilevel converters. In: Cigré International Symposium, 2015-05-27 - 2015-05-28, Lund University. (In Press)

Page, Frederick and Finney, Stephen and Xu, Lie (2014) An alternative protection strategy for multi-terminal HVDC. In: 13th Wind Integration Workshop, 2014-11-11 - 2014-11-13.

Chen, Dong and Xu, Lie (2014) DC microgrid dynamic performance assessment and enhancement based on virtual impedance method. In: 40th Annual Conference of the IEEE Industrial Electronics Society (IECON'2014), 2014-10-29 - 2014-11-01.

Bell, Keith and Xu, Lie and Houghton, Tom (2014) Considerations in design of an offshore network. In: CIGRE Session 2014, 2014-08-24 - 2014-08-30.

Zeng, Rong and Xu, Lie and Yao, Liangzhong (2014) An improved modular multilevel converter with DC fault blocking capability. In: IEEE PES General Meeting 2014, 2014-07-27.

Rafferty, John and Xu, Lie (2011) Power transmission and large scale wind farm integration using multi-terminal DC systems. In: 10th International Workshop on Large-Scale Integration of Wind Power into Power Systems as well as on Transmission Networks for Offshore Wind Power Plants, 2011-10-10.

Chen, Dong and Xu, Lie (2011) DC microgrid with variable generations and energy storage. In: IET Conference on Renewable Power Generation (RPG 2011), 2011-09-06 - 2011-09-08.

Xu, Guoyi and Xu, Lie and Morrow, D John (2011) Power network support using wind turbines with energy storage systems. In: IET Conference on Renewable Power Generation (RPG 2011), 2011-09-06 - 2011-09-08.

Zhu, X and Wang, Yi and Xu, Lie and Zhang, X and Li, H (2011) Virtual inertia control of DFIG-based wind turbines for dynamic grid frequency support. In: IET Conference on Renewable Power Generation (RPG 2011), 2011-09-06 - 2011-09-08.

Yao, Liangzhong and Xu, Lie and Bazargan, Masoud and Critchley, R. (2010) Multi-Terminal HVDC Grid for Network Interconnection and Renewable Energy Integration. In: 43rd CIGRE session, 2010-08-08. (Unpublished)

Xu, Lie and Wang, Yi and Yao, Liangzhong and Rasolonjanahary, J. L. (2009) Multi-terminal HVDC system for large offshore wind farm integration and transmission network support. In: 8th International Workshop on Large-Scale Integration of Wind Power and Transmission Networks for Offshore Wind Farms, 2009-09-21. (Unpublished)

Xu, Lie and Yao, Liangzhong and Bazargan, Masoud (2009) Fault ride through of large offshore wind farms using HVDC transmission. In: PowerTech 2009, 2009-07-06. (Unpublished)

Xu, Lie and Yao, Liangzhong and Macleod, N. and Wang, Yi (2008) Improved operation of DFIG based wind farms during network unbalance. In: Cigre 2008 9(International Council on Large Electric Systems), 2008-08-24.

Xu, Lie and Williams, Barry and Yao, Liangzhong and Bazargan, Masoud (2008) Control and operation of multi-terminal DC systems for integrating large offshore wind farms. In: 7th International Workshop on Large-Scale Integration of Wind Power and Transmission Networks for Offshore Wind Farms, 2008-05-19. (Unpublished)

Yao, Liangzhong and Xu, Lie and Bazargan, Masoud and Macleod, N. (2008) Large offshore wind farm grid integration - challenges and solutions. In: Cigre 2008 9(International Council on Large Electric Systems), 2008-08-24. (Unpublished)

McSwiggan, D. and Xu, L. and Littler, T. (2007) Modelling and control of a variable-speed switched reluctance generator based wind turbine. In: 42nd International Universities Power Engineering Conference (UPEC 2007), 2007-09-04 - 2007-09-06.

Xu, L. and Zhi, D. and Yao, L. (2007) Direct power control of grid connected voltage source converters. In: IEEE Power Engineering Society General Meeting, 2007., 2007-06-24 - 2007-06-28.

Foster, S. and Xu, L. and Fox, B. (2007) Coordinated control and operation of DFIG and FSIG based wind farms. In: Power Tech 2007, 2007-07-01 - 2007-07-05.

Yao, L.Z. and Macleod, N. and Xu, L. (2007) Enabling power electronic technologies for grid integrations of large offshore wind farms. In: Symposium on Non-Grid-Connected Wind Power, 2007-11-02 - 2007-11-02.

Zhi, D. and Xu, L. and Morrow, John A. (2007) Improved direct power control of doubly-fed induction generator based wind energy generation system. In: IEEE International Electric Machines and Drives Conference (IEMDC 2007), 2007-05-03 - 2007-05-05.

Xu, L. and Yao, L. and Sasse, C. (2006) Comparison of using SVC and STATCOM for wind farm integration. In: International Conference on Power System Technology, 2006. PowerCon 2006., 2006-10-22 - 2006-10-26.

Sasse, C. and Xu, L. and Yao, L. (2006) Offshore wind farm integration using FACTS and HVDC solutions. In: CIGRE Canada Conference on Power Systems 2006, 2006-10-01.

Xu, L. and Yao, L. and Sasse, C. (2006) Power electronics options for large wind farm integration : VSC-based HVDC transmission. In: Power Systems Conference and Exposition, 2006-10-29 - 2006-11-01, Atlanta.

Xu, L. and Agelidis, V.G. (2005) A VSC transmission system using flying capacitor multilevel converters and selective harmonic elimination pWM control. In: International Power Engineering Conference (IPEC), 2005-11-29 - 2005-12-02.

Andersen, B. and Xu, L. and Cartwright, P. (2004) Hybrid HVDC for supply of power to offshore oil platforms. In: 40th Cigre Session 2004, 2004-01-01.

Cartwright, P. and Xu, L. (2004) The integration of large scale wind power generation into transmission networks using power electronics. In: 40th Cigre Session 2004, 2004-01-01.

Xu, L. and Andersen, B. and Cartwright, P. (2003) Control of VSC transmission systems under unbalanced network conditions. In: IEEE PES Transmission and Distribution Conference and Exposition, 2003-09-07 - 2003-09-12.

Andersen, B. and Xu, L. (2003) Hybrid HVDC for power transmission to island networks. In: 2003 IEEE PES Transmission and Distribution Conference and Exposition, 2003-09-07 - 2003-09-12.

Jovcic, D. and Lamont, L. and Xu, L. (2003) VSC transmission model for analytical studies. In: IEEE-Power-Engineering-Society General Meeting 2003, 2003-07-13 - 2003-07-17.

Kirby, N. and Xu, L. and Siepmann, W. (2002) HVDC transmission options for large offshore windfarms. In: Conference: 3. International Workshop on Transmission Networks for Offshore Wind Farms, 2002-04-11 - 2002-04-12.

Xu, L. and Agelidis, V.G. and Acha, E. (2001) Steady-state operation of HVDC power transmission system with voltage-source converters and simultaneous VAR compensation. In: European Power Electronics Conference (EPE2001), 2001-08-01.

Zhu, Z.Q. and Xu, L. and Howe, D. (2001) Influence of the fan cowl on the acoustic noise radiated from PWM controlled induction machines. In: IEMDC 2001: IEEE International Electric Machines and Drives Conference, 2001-06-17 - 2001-06-20.

Xu, L. and Acha, E. and Agelidis, V.G. (2001) A new synchronous frame-based control strategy for a series voltage and harmonic compensator. In: 16th Annual IEEE Applied Power Electronics Conference and Exposition, 2001-03-04 - 2001-03-08, Anaheim.

Agelidis, V.G. and Xu, L. (2001) A novel HVDC system based on flying capacitor multilevel PWM converters. In: Proceedings of CIGRE International Conference on Power Systems (ICPS 2001), 2001-01-01 - 2001-01-01.