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State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan 430074, China





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Academic Editor: Susan Krumdieck

Abstract This paper investigates the mechanism analysis and the experimental validation of employing superconducting magnetic energy storage SMES to enhance power system stability. The models of the SMES device and the single-machine infinite-bus SMIB system with SMES are deduced. Based on the model of the SMIB system with SMES, the action mechanism of SMES on a generator is analyzed. The analysis takes the impact of SMES location and the system operating point into consideration, as well. Based on the mechanism analysis, the P-controller and Q-controller are designed utilizing the phase compensation method to improve the damping of the SMIB system. The influence of factors, such as SMES location, transmission system reactance, the dynamic characteristics of SMES and the system operating point, on the damping improvement of SMES, is investigated through root locus analysis. The simulation results of the SMIB test system verify the analysis conclusions and controller design method. The laboratory results of the 150-kJ-100-kW high-temperature SMES HT-SMES device validate that the SMES device can effectively enhance the damping, as well as the transient stability of the power system. View Full-Text

Keywords: superconducting magnetic energy storage; mechanism analysis; damping improvement; power system stability; experimental validation superconducting magnetic energy storage; mechanism analysis; damping improvement; power system stability; experimental validation





Autor: Xiaohan Shi, Shaorong Wang, Wei Yao * , Asad Waqar, Wenping Zuo and Yuejin Tang

Fuente: http://mdpi.com/



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