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基于V/V牵引变压器的同相供电系统电能质量混合补偿研究

, PP. 496-504

Keywords: 同相供电系统,电能质量,容量优化,协同控制

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Abstract:

为了综合补偿V/V同相牵引供电系统中的谐波,无功和负序等电能质量问题,提出了一种基于磁控静止无功补偿器(MSVC)和综合电能质量补偿器(HPQC)的电能质量混合补偿方法.通过协同控制MSVC和HPQC使得HPQC的直流电压最小,从而达到完全补偿无功,负序条件下,HPQC有源容量最小.再利用无源滤波器和HPQC有源滤波共同滤除系统中的谐波,实现对系统的负序,无功和谐波的综合补偿.另外还分析了混合补偿系统的负序,无功和谐波电流的实时检测方法,提出了HPQC和MSVC的协同控制策略,使得整个系统响应速度满足补偿要求.与传统有源补偿设备相比,降低了有源部分的补偿容量和直流电压,降低了补偿成本.仿真和实验结果验证了本文提出的混合补偿方法的有效性和可行性.

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