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DSP-based closed-loop control system of three-phase SVPWM inverter

Changyu Liu

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Abstract

Owing to less current harmonics,lower torque ripple and lower noise of SVPWM(Space Vector Pulse Width Modulation)technique,a three-phase SVPWM inverter system is designed with high performance.Its main circuit has efficient snubber,applicable to high on-off frequency,and its control system is based on DSP(Digital Signal Processor)TMS320LF 2407A,suitable for high speed data sampling and real-time data processing.Applying SVPWM algorithm,FFT(Fast Fourier Transform)algorithm,digital PID(Proportional-Integral-Derivative)algorithm,a closed-loop control system of digital three-phase SVPWM inverter is made,which has friendly man-machine interface and commu-nication function.Experiment results show that the system has higher control precision,better static and dynamic performance.

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What this paper is about

Owing to less current harmonics,lower torque ripple and lower noise of SVPWM(Space Vector Pulse Width Modulation)technique,a three-phase SVPWM inverter system is designed with high performance.Its main circuit has efficient snubber,applicable to high on-off frequency,and its control system is based on DSP(Digital Signal Processor)TMS320LF 2407A,suitable for high speed data sampling and real-time data processing.Applying SVPWM algorithm,FFT(Fast Fourier Transform)algorithm,digital PID(Proportional-Integral-Derivative)algorithm,a closed-loop control system of digital three-phase SVPWM inverter is made,which has friendly man-machine interface and commu-nication function.Experiment results show that the system has higher control precision,better static and dynamic performance.

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Available abstract

Owing to less current harmonics,lower torque ripple and lower noise of SVPWM(Space Vector Pulse Width Modulation)technique,a three-phase SVPWM inverter system is designed with high performance.Its main circuit has efficient snubber,applicable to high on-off frequency,and its control system is based on DSP(Digital Signal Processor)TMS320LF 2407A,suitable for high speed data sampling and real-time data processing.Applying SVPWM algorithm,FFT(Fast Fourier Transform)algorithm,digital PID(Proportional-Integral-Derivative)algorithm,a closed-loop control system of digital three-phase SVPWM inverter is made,which has friendly man-machine interface and commu-nication function.Experiment results show that the system has higher control precision,better static and dynamic performance.

Key concepts: Digital signal processing, Inverter, Control theory (sociology), Harmonics, Pulse-width modulation, Digital signal processor, Computer science, Fast Fourier transform

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DSP-based closed-loop control system of three-phase SVPWM inverter — Research Paper | ScholarLens