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Research of SPWM Algorithm Based on Equivalent Area Compensation

Qi Wang, Tian Gao

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Abstract

This paper presents a SPWM algorithm based on equivalent area compensation. The algorithm could make the output fundamental wave keeps linear with the modulation wave while the modulation M is more than 1 to extend the linear range and improve the accuracy of the output waveform by pre-shaping modulation function. Experiments show that this algorithm has such advantages as high voltage utilization , small harmonic loss，simple calculation and strong real-time.

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What this paper is about

This paper presents a SPWM algorithm based on equivalent area compensation. The algorithm could make the output fundamental wave keeps linear with the modulation wave while the modulation M is more than 1 to extend the linear range and improve the accuracy of the output waveform by pre-shaping modulation function. Experiments show that this algorithm has such advantages as high voltage utilization , small harmonic loss，simple calculation and strong real-time.

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Available abstract

This paper presents a SPWM algorithm based on equivalent area compensation. The algorithm could make the output fundamental wave keeps linear with the modulation wave while the modulation M is more than 1 to extend the linear range and improve the accuracy of the output waveform by pre-shaping modulation function. Experiments show that this algorithm has such advantages as high voltage utilization , small harmonic loss，simple calculation and strong real-time.

Key concepts: Waveform, Compensation (psychology), Modulation (music), Harmonic, Control theory (sociology), Voltage, Function (biology), Algorithm

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