Research on Zero-Sequence Circulating Current of PCS in MW Energy Storage System

被引：0
|
作者：
Yang, Bin [1 ]
Zhao, Zhihong [1 ]
Liu, Mengxuan [1 ]
Zhao, Jianfeng [1 ]
机构：
[1] Southeast Univ, Dept Elect Engn, Nanjing, Jiangsu, Peoples R China
来源：
2016 IEEE INTERNATIONAL CONFERENCE ON POWER SYSTEM TECHNOLOGY (POWERCON) | 2016年
关键词：
average power control; parallel three-level converter; PCS; ZSCC suppressing; PARALLEL; CONVERTER;
D O I：
暂无
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Power conversion system(PCS) is the most important device in energy storage system. Parallel three-phase three-level PWM converter is applied in PCS for lower switching losses and higher power rating. However, the circulating current is generated on it. In this paper, the modeling of zero-sequence circulating current(ZSCC) is first presented. Thus, an optimized modulation method is proposed based on SVPWM. An average power control strategy is then presented to suppress the circulating current. Furthermore, a model of PCS for energy storage system is constructed. Simulation results confirm the validity of the proposed theory and control strategy.
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页数：6
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