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2006•Journal of Central South University(Science and Technology)Requires access

Power control of PWM rectifiers using direct current control

Zhou Liang-yu

Open publisher page 1 citations

Abstract

Under the source voltage oriented synchronous coordinate,the relations of PWM rectifier active power and reactive power with source voltage and current space vectors were analyzed,and a PWM rectifier power control scheme based on direct current control was proposed.The mathematic model for PWM rectifier power control was established according to the voltage equation and power transmission principle,which was applied to the adjustment of the parameter of both current and voltage PI regulators.The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage,high speed of response and excellent dynamic and static performance.

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What this paper is about

Under the source voltage oriented synchronous coordinate,the relations of PWM rectifier active power and reactive power with source voltage and current space vectors were analyzed,and a PWM rectifier power control scheme based on direct current control was proposed.The mathematic model for PWM rectifier power control was established according to the voltage equation and power transmission principle,which was applied to the adjustment of the parameter of both current and voltage PI regulators.The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage,high speed of response and excellent dynamic and static performance.

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Available abstract

Under the source voltage oriented synchronous coordinate,the relations of PWM rectifier active power and reactive power with source voltage and current space vectors were analyzed,and a PWM rectifier power control scheme based on direct current control was proposed.The mathematic model for PWM rectifier power control was established according to the voltage equation and power transmission principle,which was applied to the adjustment of the parameter of both current and voltage PI regulators.The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage,high speed of response and excellent dynamic and static performance.

Key concepts: PWM rectifier, Rectifier (neural networks), Control theory (sociology), Pulse-width modulation, Voltage source, AC power, Precision rectifier, Voltage

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