The Coordinated Neutral Point Voltage Balance Control for Back-to-Back NPC Converters used in the Wind Power System

被引：0

作者：

Tan, Longcheng ^{[1
]}

Liu, Yang ^{[1
]}

Su, Zhaoyang ^{[1
]}

Wang, Ping ^{[1
]}

Li, Yaohua ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Elect Engn, Beijing 100864, Peoples R China

来源：

2014 17TH INTERNATIONAL CONFERENCE ON ELECTRICAL MACHINES AND SYSTEMS (ICEMS) | 2014年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The neutral point voltage balance control for back-to-back NPC converter used in the wind power application is researched in this paper. The two main operation modes are focused to analyze the possible problems of voltage balance control, based on which a coordinated control method for the neutral point voltage regulation is proposed to suppress its drift. According to the operation conditions of the wind power generation, only the grid side converter (GSC) has the voltage balance control function when it's at standby mode or under light load conditions such as during the soft cut-in process, while the GSC predominates the voltage balance control when both GSC and rotor side converter (RSC) have the abilities to control neutral point (NP) voltage, but RSC only control the remaining NP voltage drift which GSC can't control. Detailed simulation have proved that the coordinated control method can improve the neutral point voltage balance control ability.

引用

页码：935 / 938

页数：4

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