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配电网STATCOM输出LCL滤波器特性分析及参数设计

, PP. 99-105

Keywords: 配电网STATCOM,LCL滤波器,开关谐波,电感基波压降,无功调节能力

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Abstract:

配电网STATCOM(D-STATCOM)输出滤波器参数的选择影响到开关谐波的滤除和系统的工作性能。本文主要从电感基波压降、STATCOM无功调节能力、开关谐波电流衰减度、滤波器谐振频率等方面分析了LCL滤波器的特性,提出基于这些条件的滤波器参数设计方法。另外,本文在滤波器阻尼电阻上并联一个小电感,大大减小了滤波器的功率损耗。通过仿真验证,表明所设计LCL滤波器参数具有很好的滤波效果,同时滤波器具有较大的通带宽度,使得D-STATCOM具有一定的谐波补偿能力。

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