Multiscale power fluctuation evaluation of a hydro-wind-photovoltaic system
Xiong, Hualin and Xu, Beibei and Kheav, Kimleng and Luo, Xingqi and Zhang, Xingjin and Patelli, Edoardo and Guo, Pengcheng and Chen, Diyi (2021) Multiscale power fluctuation evaluation of a hydro-wind-photovoltaic system. Renewable Energy, 175. pp. 153-166. ISSN 0960-1481 (https://doi.org/10.1016/j.renene.2021.04.095)
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Abstract
The hybrid energy systems are required to operate stably in different time scales. Previous studies on the stability are carried out under the unrealistic assumption of discontinuous time scales. Therefore, a second time scale model for the hybrid energy systems is presented in this study. To overcome the possible uncertainty caused by the discontinuous time scale assumption, a new method is introduced to analyze power fluctuations for the hybrid power system considering the hydroelectric power station (HPS) and PV-wind complementarity. Compared with traditional statistics, the proposed three indices, discussed in terms of variation frequency, have the ability to show the stability and complementarity characteristics of the hybrid system with the time scale varying from second to hour, The results show that the volatility of wind power and photoelectric increase with the increase of time scale. In (10 0, 10 2) seconds, the HPS could not compensate for as they do not meet flexibility demand in that particular frequency domain, and hydro-electric power is able to compensate wind and PV power sources well when the time scale is over 10 2 s. The obtained stability evolution law has important reference significance for the subsequent studies on the stability of hybrid energy systems.
ORCID iDs
Xiong, Hualin, Xu, Beibei, Kheav, Kimleng, Luo, Xingqi, Zhang, Xingjin, Patelli, Edoardo ORCID: https://orcid.org/0000-0002-5007-7247, Guo, Pengcheng and Chen, Diyi;-
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Item type: Article ID code: 78744 Dates: DateEvent30 September 2021Published4 May 2021Published Online19 April 2021AcceptedSubjects: Technology > Electrical engineering. Electronics Nuclear engineering
Technology > Engineering (General). Civil engineering (General)
Technology > Engineering (General). Civil engineering (General) > Environmental engineeringDepartment: Faculty of Engineering > Civil and Environmental Engineering Depositing user: Pure Administrator Date deposited: 30 Nov 2021 17:01 Last modified: 31 Oct 2024 01:53 URI: https://strathprints.strath.ac.uk/id/eprint/78744