Research on New Type of Power Filter Controlled by DSP

This paper presents a new type of Hybrid Active Power Filter Device structure, which is based on Double DSP Control with TMS320F2812 as the chip, and combines the active power filter and passive power filters with higher filtering of 5 times, 7 times, etc. In the paper, it introduces the design and realization of the program, and demonstrates the detection and compensation method of the main circuit and presents the signal detection circuit diagram. The experiment proves that the system has a good compensation characteristic, decreased the capacity of APF as to reduce the cost and technical complexity. The proposed APF shows good effect on suppression of the harmonic current, it meets the design requirement.