Harmonic resonance characteristics analysis and suppression strategy of LCL energy storage virtual synchronous generator

被引：0
|
作者：
Li, Zhi [1 ,2 ]
Zhang, Zhonghua [1 ,2 ,3 ]
Liu, Hui [1 ,2 ]
Song, Peng [1 ,2 ]
He, Tongxiang [3 ]
Li, Na [1 ,2 ]
机构：
[1] State Grid Jibei Electric Power Co. Ltd., Research Institute, North China Electric Power Research Institute Co. Ltd., Beijing,100045, China
[2] State Grid Wind-Solar-Energy Storage Generation Laboratory, Beijing,100045, China
[3] North China Electric Power University, Baoding,071000, China
来源：
Taiyangneng Xuebao/Acta Energiae Solaris Sinica | 2020年 / 41卷 / 10期
关键词：
Energy storage - Harmonic analysis - Virtual Power Plants - System stability - Damping - Synchronous generators;
D O I：
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中图分类号：
学科分类号：
摘要：
The transfer function model of LCL-type energy storage virtual synchronous generator is established in this paper, and the harmonic resonance risk and characteristics of the LCL-type energy storage virtual synchronous generator under different power and impedance parameters is analyzed. In order to suppress the harmonic resonance of the LCL-type energy storage virtual synchronous generator, based on its control strategy, a harmonic resonance suppression strategy with a series damping resistance and a parallel damping resistance on the filter capacitor is proposed. By changing the complex impedance of the filter capacitor, harmonic resonance peaks are damped, and the amplitude margin and phase margin of the LCL-type energy storage virtual synchronous generator grid-connected system are increased, and the system stability is enhanced. The electromagnetic transient model of LCL-type energy storage virtual synchronous machine is established, and the feasibility of the proposed strategy is verified. © 2020, Solar Energy Periodical Office Co., Ltd. All right reserved.
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页码：101 / 108
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