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电网技术  2006 

2MVA无串联变压器级联多电平动态电压调节器的设计与仿真

, PP. 80-84

Keywords: 动态电压调节器,级联多电平逆变器,电压暂降,串联变压器,电能质量,电力系统

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Abstract:

研究了基于级联多电平结构的无串联注入变压器的2MVA动态电压调节器(Dynamicvoltagerestorer,DVR)的系统设计方案,针对DVR的主电路拓扑、电压暂降检测算法、底层载波移相控制策略、储能计算、滤波器设计及逆变器部分的损耗进行了分析研究,并对某生产基地6kV系统的电压暂降问题完成了DVR装置主电路参数和控制电路的功能设计,采用仿真软件EMTDC/PSCAD进行了仿真研究,验证了文中所提设计方案的正确性及有效性。

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