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2009•Techniques of Automation and ApplicationsRequires access

DSP-Based SHE PWM

Xun Lei

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Abstract

Selected Harmonic Elimination(SHE) is a Pulse Width Modulation method which aims at eliminating some specific harmonics.Compared with other PWM,this method has the following characteristics: good elimination quality,highquality output waveform,low switch frequence of power electronic devices,small switching loss and high utilization ratio of voltage.This paper introduces the implementation of SHE PWM with the DSP chip TMS320F2812.Simulation results are also given.

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What this paper is about

Selected Harmonic Elimination(SHE) is a Pulse Width Modulation method which aims at eliminating some specific harmonics.Compared with other PWM,this method has the following characteristics: good elimination quality,highquality output waveform,low switch frequence of power electronic devices,small switching loss and high utilization ratio of voltage.This paper introduces the implementation of SHE PWM with the DSP chip TMS320F2812.Simulation results are also given.

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Available abstract

Selected Harmonic Elimination(SHE) is a Pulse Width Modulation method which aims at eliminating some specific harmonics.Compared with other PWM,this method has the following characteristics: good elimination quality,highquality output waveform,low switch frequence of power electronic devices,small switching loss and high utilization ratio of voltage.This paper introduces the implementation of SHE PWM with the DSP chip TMS320F2812.Simulation results are also given.

Key concepts: Pulse-width modulation, Harmonics, Waveform, Digital signal processing, Electronic engineering, Computer science, Power (physics), Voltage

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