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DSP-based three-phase voltage source rectifier

YU Zhi-fei

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Abstract

The software design of its control core,DSP TMS320LF2812,is simplified by applying the digital control technology and space vector algorithm to better implement the digital control of a three-phase VSR(Voltage Source Rectifier) according to its main circuit topology,based on which,the DSP-based control system of three-phase voltage-type PWM rectifier is given.The design and relevant block diagrams are detailed for the control modules of AC voltage sampling,DC voltage detection,IPM drive circuit,PI regulator,SVPWM(Space Vector Pulse Width Modulation),etc.Its simulation model is established in Matlab/Simulink and the simulative results show that,the DSP-controlled VSR implements unity power factor control with excellent dynamic and static performance.

About this research paper

What this paper is about

The software design of its control core,DSP TMS320LF2812,is simplified by applying the digital control technology and space vector algorithm to better implement the digital control of a three-phase VSR(Voltage Source Rectifier) according to its main circuit topology,based on which,the DSP-based control system of three-phase voltage-type PWM rectifier is given.The design and relevant block diagrams are detailed for the control modules of AC voltage sampling,DC voltage detection,IPM drive circuit,PI regulator,SVPWM(Space Vector Pulse Width Modulation),etc.Its simulation model is established in Matlab/Simulink and the simulative results show that,the DSP-controlled VSR implements unity power factor control with excellent dynamic and static performance.

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Available abstract

The software design of its control core,DSP TMS320LF2812,is simplified by applying the digital control technology and space vector algorithm to better implement the digital control of a three-phase VSR(Voltage Source Rectifier) according to its main circuit topology,based on which,the DSP-based control system of three-phase voltage-type PWM rectifier is given.The design and relevant block diagrams are detailed for the control modules of AC voltage sampling,DC voltage detection,IPM drive circuit,PI regulator,SVPWM(Space Vector Pulse Width Modulation),etc.Its simulation model is established in Matlab/Simulink and the simulative results show that,the DSP-controlled VSR implements unity power factor control with excellent dynamic and static performance.

Key concepts: Rectifier (neural networks), Digital signal processing, Pulse-width modulation, PWM rectifier, Electronic engineering, Voltage regulator, MATLAB, Voltage

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