交流电机控制中的优化PWM波生成技术
The Techniques of Generating Optimal Pulse Width Modulation Waveforms Applied to Variable Speed AC Motor Drive Systems
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摘要: 简要分析了PWM(Pulse Width Modulation)控制技术的现状,系统地探讨了PWM 波的优化问题,并研究了基波幅值连续可调时初始开关角的确定原则和优化问题的求解方 法,分析了优化结果的实际应用问题.Abstract: This paper simply reviews the present situation of pulse width modulation (PWM) control techniques, and considers the optimal problems of PWM waveforms systematically. The rules to determine the initial chopping angles and the methods to solve the optimal problems are given. At last, the practical uses of the optimal PWM waveforms are discussed.
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Key words:
- AC motor /
- pulse width modulation waveforms /
- harmonics
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