采用负载电流检测控制方式的单相并联混合型有源电力滤波器

Single-phase parallel hybrid active power filter adopting novel control approach of load current detection

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。

At first, the basic operation principle of parallel hybrid active power filter with adoption of previous control approach of supply current detection is analyzed, and the disadvantage of the previous control approach is pointed out. Secondly, a new control approach of load current detection is proposed. Then, a prototype of the single phase parallel hybrid power active filter adopting new control approach is developed and the corresponding experiment studies are carried out. At last, the results verify the validity of the parallel hybrid power filter adopting the control approach of load current detection, and show that it has better harmonic compensation characteristics than the previous control approach.