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逆变器换相失败发生机理及其抑制方法研究

Author(s)：
黄浩宇汪伟

Publication Title：

Wen Yuan (Middle School Edition) 2022 No.11

Affiliations：
国网江西省电力有限公司九江供电分公司

Abstract：
首先对逆变器换相失败机理进行解析，明确了直流电流对换相失败的影响。其次，对VDCOL及动态VDCOL的参数进行改进，引入simplex算法对VDCOL参数优化，达到在交直流混合系统受端换流母线发生严重的三相短路故障时，减小受端系统逆变器消耗无功的峰值同时加快受端有功传输恢复速度，从而有效的抑制后续换相失败，在防止系统电压及功角失稳，具有一定的作用；最后，基于PSCAD/EMTDC仿真验证参数优化的有效性。

Keywords：
换流器；换相失败；VDCOL；优化

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[1] 黄浩宇,汪伟.逆变器换相失败发生机理及其抑制方法研究[J].Wen Yuan (Middle School Edition),2022(11),.

文渊(中学版)

Wen Yuan (Middle School Edition)

Language: 中文

CN：11-9275/G

ISSN：2096-627X

Publication Frequency: 月刊

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