Abstract

This article analyzes the principle of three-phase parallel active power filter and the detection method of harmonic. Then it introduces the main circuit of active power filter and the core control system of TMS320F2812 DSP and gives one kind of control policies to realize the entire compensation of reactive power and harmonic by the instantaneous power theory. The theoretical analysis and experimental results indicate that the TMS320F2812 DSP control system of three-phase parallel active power filter has good compensation characteristic and the ability of self-adaptive.

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