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Application of New Type Control Tactic in Off-grid Small Wind Power System

Huang Fan, Wang Guang-fen

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Abstract

A three-phase PWM rectifier was applied instead of uncontrolled rectifier and Boost converter.According to the passivity of PWM rectifier,a passive controller was designed by a new damping injection method.The passive controller transforms the current control system of PWM rectifier into decoupling one with better dynamic and static features.Especially in load disturbance condition,the rectifier possesses characteristics of fast response,excellent current waveforms and good DC voltage output stability.The system uses TMS320F2812 control processor as PWM signal generator.The system modeling and simulation analysis were carried out by Matlab/Simulink,and the results proved the feasibility and the advantages of this principle.

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What this paper is about

A three-phase PWM rectifier was applied instead of uncontrolled rectifier and Boost converter.According to the passivity of PWM rectifier,a passive controller was designed by a new damping injection method.The passive controller transforms the current control system of PWM rectifier into decoupling one with better dynamic and static features.Especially in load disturbance condition,the rectifier possesses characteristics of fast response,excellent current waveforms and good DC voltage output stability.The system uses TMS320F2812 control processor as PWM signal generator.The system modeling and simulation analysis were carried out by Matlab/Simulink,and the results proved the feasibility and the advantages of this principle.

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Available abstract

A three-phase PWM rectifier was applied instead of uncontrolled rectifier and Boost converter.According to the passivity of PWM rectifier,a passive controller was designed by a new damping injection method.The passive controller transforms the current control system of PWM rectifier into decoupling one with better dynamic and static features.Especially in load disturbance condition,the rectifier possesses characteristics of fast response,excellent current waveforms and good DC voltage output stability.The system uses TMS320F2812 control processor as PWM signal generator.The system modeling and simulation analysis were carried out by Matlab/Simulink,and the results proved the feasibility and the advantages of this principle.

Key concepts: PWM rectifier, Control theory (sociology), Decoupling (probability), Rectifier (neural networks), Pulse-width modulation, Precision rectifier, Engineering, MATLAB

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