链式STATCOM系统短路电流计算方法Short-Circuit Current Calculation Method for Cascaded STATCOM
袁志昌,宋强,刘文华,郑东润,乔卫东
摘要(Abstract):
在链式静止无功补偿器(Staticvar Compensator,STATCOM)中主变压器的保护具有非常重要的意义。文章分析了链式STATCOM的运行原理,结合电力系统故障分析的理论,提出了一种计算主变压器两侧发生短路故障时流过系统各处电流的计算方法,以上海西郊变电站±50Mvar STATCOM装置为例计算了各种故障条件下的故障电流,并与链式STATCOM系统模型仿真结果进行比较,验证了该方法的正确性,为实际工程中主变压器的保护和整定提供了参考依据。
关键词(KeyWords): 链式静止无功补偿器;主变压器;故障电流;变压器保护;电力系统
基金项目(Foundation): 国家重点基础研究发展计划项目(973项目)(2004CB217907)。~~
作者(Author): 袁志昌,宋强,刘文华,郑东润,乔卫东
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参考文献(References):
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