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首先分析了采用原有的电源电流检测控制方式时单相并联混合型有源电力滤波器的工作原理 ,说明了该控制方式存在的不足 ,在此基础上提出一种新的控制方式———负载电流检测控制方式。研制了相应的实验样机 ,进行了实验研究。结果验证了采用新控制方式时单相并联混合型有源电力滤波器的有效性 ,并且阐明其具有比电源电流检测控制方式更好的谐波补偿性能。
First of all, the working principle of single-phase parallel hybrid active power filter when using the original power supply current detection control mode is analyzed. The deficiency of this control mode is explained. Based on this, a new control mode Load current detection control method. Developed the corresponding experimental prototype, conducted experimental research. The results validate the effectiveness of the single-phase shunt hybrid active power filter with the new control method and show that it has better harmonic compensation performance than the current detection control method.