Study On The PWM Method For Active Power Filters

The PWM methods in the applied Active Power Filters(APF) in all the world still are important and will be more and more effective.Up to now in PWM methods the analog PWM methods still are important.In this paper,the analog PWM methods will be analyzed,and two practical fashions will be put forward.One is making use of the IC's merits,and the other is making use of the crystal oscillation equipment's merits.At last for the aims of studying ,a three-Phase inverter device has been finished.By these,the power electron study has been more comprehended by the paper. Wish that this paper's pursuits can be help for APF's designs.