Research On The Active Power Filter Based On Current Tracing Control

APF(Active Power Filter) has been widely attached importance to its excellentability of eliminating current harmonics. Firstly, this article thoroughly analyzes eachkind of active power filter system constitution and their good and bad points. Twoconventional methods of control strategies have been priority studied, and then expandsthem to the cascade multi-levels structure. In view of the cascade multi-levels circuitcharacteristic, this article proposes a new reference current withdraw the method,solving the direct current capacitance-voltage stable control problem. The simulationresult indicates this method realizes is quite simple, moreover easy to higher levelexpansion. In addition analyzes active power filter mathematical model in the simulationfoundation, producing the main parameter design method and carries on theconfirmation. Finally the active power filter device is designed developed andexperiment result is provided. This device is provided the platform for analysis researchand the actual application tests.