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Research on PWM Rectifier with Direct Power Control based on Space-Vector Modulation

LI Lin-jie

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Abstract

The principle of PWM rectifier DPC-SVM was analyzed and each part of three-phase control system was also demonstrated in detail.The control system had a closed-loop voltage controller in outer loop and a closed-loop power controller in inner loop.Also,a model was developed making use of Matlab/Simulink.Simulation results show the perfect control effect,less current aberrance,the system has good dynamic and static performances and can realize the control of active power and reactive power independently as well as unit power factor.This scheme is feasible.

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What this paper is about

The principle of PWM rectifier DPC-SVM was analyzed and each part of three-phase control system was also demonstrated in detail.The control system had a closed-loop voltage controller in outer loop and a closed-loop power controller in inner loop.Also,a model was developed making use of Matlab/Simulink.Simulation results show the perfect control effect,less current aberrance,the system has good dynamic and static performances and can realize the control of active power and reactive power independently as well as unit power factor.This scheme is feasible.

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Available abstract

The principle of PWM rectifier DPC-SVM was analyzed and each part of three-phase control system was also demonstrated in detail.The control system had a closed-loop voltage controller in outer loop and a closed-loop power controller in inner loop.Also,a model was developed making use of Matlab/Simulink.Simulation results show the perfect control effect,less current aberrance,the system has good dynamic and static performances and can realize the control of active power and reactive power independently as well as unit power factor.This scheme is feasible.

Key concepts: Control theory (sociology), Rectifier (neural networks), PWM rectifier, Space vector modulation, Controller (irrigation), AC power, Power factor, Pulse-width modulation

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