Power Regulation Characteristics Analysis of Variable Speed Pumped Storage with Full-Size Converter

doi:10.3969/j.issn.1000-7229.2016.04.014

Abstract

Abstract:

Variable speed pumped storage （VSPS） with full-size converter （FSC） can be an effective measure for automatic frequency control and renewable energy generation fluctuation balance. This paper mainly studies the modeling and control strategies of the machine-side and grid-side converter, based on the introduction of the overall structure of VSPS with three-level FSC. On a basis of the given reference power generated by the need of grid operation, we propose the control strategy of active power and reactive power for FSC-VSPS under generator mode and motor mode. According to the proposed model of FSC-VSPS units, we adopt the Fourier transform method based on impulse response to present the spectrum characteristics of units. Compared with the spectrum characteristics of wind power fluctuation, this paper describes the effectiveness of control effect of the VSPS system with FSC to the power fluctuation caused by renewable energy. Finally, we simulate and verify the effect of VSPS units with FSC on the restrain action of wind power output fluctuation.

Key words: full-size converter（FSC）, power electronic converters, variable speed pumped storage （VSPS）, power control strategy, renewable energy, spectrum characteristics analysis

CLC Number:

TM 612

CHANG Xin, HAN Minxiao, ZHENG Chao. Power Regulation Characteristics Analysis of Variable Speed Pumped Storage with Full-Size Converter[J]. Electric Power Construction, 2016, 37(4): 91-97.

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