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| Adjustable-Speed Hydraulic Pumped Storage System Based on the Modular Multilevel Matrix Converter |
| Fan Boran, Wang Kui, Li Yongdong, Zheng Zedong, Xu Lie |
| State Key Lab of Control and Simulation of Power System and Generation Equipments Department of Electrical Engineering Tsinghua University Beijing 100084 China |
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Abstract Adjustable speed pumped storage hydropower plants can effectively compensate the power fluctuations resulted from the renewable energy generation. As a modular cascaded direct AC to AC multilevel converter, the modular multilevel matrix converter (M3C) is a promising topology to meet the super high-voltage and high-power demand of hydraulic pumped storage plants. To improve the frequency regulation capability and the system operation efficiency, the paper proposed a M3C based hydraulic pumped storage system. A 10kW M3C prototype with 27 modules had been established to verify the full-frequency operation of the M3C under pump and generator operation.
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Received: 01 July 2018
Published: 15 February 2019
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2018, Vol. 33 
