| Nowadays, people pay more attention to the harm of harmonic. The harmonic pollution in power grid is getting worse, and power quality requirement is becoming stricter by users. The advanced dynamic compensation device, APF, may reduce harmonic and synthetically control power quality in industrial enterprises, which will bring the remarkable effect and infection.This paper focused on the research of harmonic suppression and large-capacity reactive power compensation in of power grid. According to the harmonic elimination project in factury, combining APF and PPF respectively with satisfy high electric voltage, a novel HHSHIAPF was proposed, and some key problems of HHSHIAPF were emphatically discussed, such as topology structure, work principle, harmonic detection algorithm, and current tracking control algorithm and so on. We use Matlab to establishment model, by result, became more perfect for harmonic suppression and reactive power compensation. Finally become Harmonic analysis and suppression with the design of the hardware system based on HHSHIAPF.To satisfy the demands of the real-time detection and high precision of harmonic current reference signal, and the characters of easy realization and less calculation of harmonic current detection algorithm, an instantaneous reactive power. In order to satisfy a HHSHIAPF control to respond to the speed quick characteristics, a novel compound control algorithm was proposed. In the proposed algorithm, the output of recursive integral PI control algorithm was introduced as an equivalent control of sliding-mode variable structure control algorithm. Consequently, this novel controller could provide fast respond and high accuracy.This thesis adoption TMS320LF2407 is a HHSHIAPF core processor, the realization decrees by destiny harmonic detection and control algorithm, then complete imitate of system really, designed the hardware electric circuit of the control according to the DSP finally, proved a HHSHIAPF possibility. |
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