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一种改进型并联混合有源电力滤波器及其控制

, PP. 67-72

Keywords: 有源电力滤波器,注入支路,谐波电流,固定频率,滞环控制

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Abstract:

针对并联混合型有源电力滤波器谐波电流注入支路中存在阻塞谐波电流注入的阻抗问题,提出一种改进注入支路的并联混合型有源电力滤波器,使谐波注入支路上不存在影响补偿谐波电流注入电网的阻抗。根据该新型电路结构,通过分析谐波补偿和基波有功电流控制的原理,得出有源部分逆变器输出电压目标值的计算公式,并提出一种新的定频滞环电压控制方法用于控制逆变器输出电压,从而间接地实现了谐波补偿电流和直流侧电容电压的精确控制。最后,通过PSIM仿真实验和物理装置模拟实验验证本文所提新型注入支路和定频滞环控制方法的可行性和有效性。

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