采用负载电压检测控制方式的串联型电力有源滤波器

A Series Active Power Filter Adopting the Control Approach of Load Voltage Detection

在分析串联型电力有源滤波器工作原理的基础上，通过扩展电源电流检测控制方式，提出了一种新的负载电压检测控制方式，同时讨论了ＰＷＭ逆变器及其直流侧电压的控制方法。在此基础上，研制了采用新控制方式的串联型电力有源滤波器实验样机，进行了相应的实验研究。结果验证了负载电压检测控制方式的串联型电力有源滤波器的有效性，并且表明比电源电流检测控制方式更好的谐波补偿性能。

On the basis of analyzing the basic operation principle of series active power filter,a new control approach of load voltage detection is proposed by developing the control approach of supply current detection.The control method of PWM inverter and its dc side voltage,at the same time,are discussed According to them,a prototype of the series active power filter adopting new control approach is manufactured and corresponding experiment studies are carried out The results verify the validity of the series active power filter based on the control approach of load voltage detection,and show that it is of better harmonic compensation characteristics than that of supply current detection