柔性直流输电对交流系统负序方向元件影响分析
Automation of Electric Power Systems(2017)
Abstract
介绍了柔性直流换流器等效模型,分析了负序方向元件在含柔性直流系统的交流系统电网中的适应性,并通过仿真研究对理论分析进行了验证,提出了保护配置建议.仿真结果表明,交流电网不对称故障时基于负序方向元件的纵联保护可能拒动或误动,对柔性直流换流站出线不宜采用基于负序方向元件的纵联保护.
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Key words
negative sequence directional component,voltage source converter based high voltage direct current (VSC-HVDC),fault ride through
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