Picture of UK Houses of Parliament

Leading national thinking on politics, government & public policy through Open Access research

Strathprints makes available scholarly Open Access content by researchers in the School of Government & Public Policy, based within the Faculty of Humanities & Social Sciences.

Research here is 1st in Scotland for research intensity and spans a wide range of domains. The Department of Politics demonstrates expertise in understanding parties, elections and public opinion, with additional emphases on political economy, institutions and international relations. This international angle is reflected in the European Policies Research Centre (EPRC) which conducts comparative research on public policy. Meanwhile, the Centre for Energy Policy provides independent expertise on energy, working across multidisciplinary groups to shape policy for a low carbon economy.

Explore the Open Access research of the School of Government & Public Policy. Or explore all of Strathclyde's Open Access research...

Stability improvement of DC power systems in an all-electric ship using hybrid SMES/battery

Alafnan, Hamoud and Zhang, Min and Yuan, Weijia and Zhu, Jiahui and Li, Jianwei and Elshiekh, Mariam and Li, Xiaojian (2018) Stability improvement of DC power systems in an all-electric ship using hybrid SMES/battery. IEEE Transactions on Applied Superconductivity, 28 (3). ISSN 1051-8223

[img]
Preview
Text (Alafnan-etal-IEEE-TAS-2018-Stability-improvement-of-DC-power-systems-in-an-all-electric)
Alafnan_etal_IEEE_TAS_2018_Stability_improvement_of_DC_power_systems_in_an_all_electric.pdf
Accepted Author Manuscript

Download (581kB)| Preview

    Abstract

    As the capacity of all-electric ships (AESs) increases dramatically, the sudden changes in the system load may lead to serious problems, such as voltage fluctuations of the ship power grid, increased fuel consumption, and environmental emissions. In order to reduce the effects of system load fluctuations on system efficiency, and to maintain the bus voltage, we propose a hybrid energy storage system (HESS) for use in AESs. The HESS consists of two elements: a battery for high energy density storage and a superconducting magnetic energy storage (SMES) for high power density storage. A dynamic droop control is used to control charge/discharge prioritization. Maneuvering and pulse loads are the main sources of the sudden changes in AESs. There are several types of pulse loads, including electric weapons. These types of loads need large amounts of energy and high electrical power, which makes the HESS a promising power source. Using Simulink/MATLAB, we built a model of the AES power grid integrated with an SMES/battery to show its effectiveness in improving the quality of the power grid.