Research Of Three-phase Parallel Hybrid Active Power Filter

This paper mainly studies three phase parallel hybrid active power filter. First of all, thispaper introduces related definition of reactive power, harmonic generation principle and theresearch purpose and meaning of active power filter. Gives a brief introduction to basicprinciple of no source filter and active filter, analyzes the respective circuit structure,performance, advantages and disadvantages. Secondly, a detailed analysis of the harmoniccurrent detection scheme, the original electric current detection algorithm has made theimprovement, convenient any time harmonic current detection. For compensation control inthe course of time delay, the article adopts the method of increase compensation Angle tocompensate. Finally, combined the hysteresis comparison principle and the concreteimplementation process of control mode, design of the system control flow and softwarealgorithm, and gives the overall structure of the filter system. System model is established inthis paper, using the MATLAB simulation software, the harmonic current detection algorithmand the correctness of the active filter system has carried on the simulation analysis, validatethe correctness of the design and control stability. Finally, this paper USES TI TMS320C6000DSP platform and intelligent IPM module active filter system hardware circuit is given, andcompleted the design of active power filter.