基于DSP的SPWM波形设计与实现
首发时间:2010-11-02
摘要:随着现代控制理论的发展和现代工业的进步,要求简单方便的实现机电的控制。由于SPWM控制方法的实现简单,效果良好,已被广泛应用到逆变器和电机驱动器中。本文论述了SPWM控制原理及目前广泛应用的采样方法,对比分析了这几种采样方法的优缺点;并介绍了采用TMS320F2812芯片,通过查表法产生三相SPWM波的方法。实验结果表明,该方法既能满足一定控制精度要求又能满足实时性要求,便于控制。
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Design and implementation of SPWM Basic on DSP
Abstract:With the development of modern control theory and modern industrial progress, requirements for easy implementation of electromechanical control. Due to the SPWM method is implemented as a simple, effective, and has been widely applied to the inverter and motor drive. This article discusses the SPWM principle and present extensively apply sampling methods, comparative analysis of the several advantages and disadvantages of sampling methods; and introduces apply TMS320F2812 chip by checking table generate three-phase SPWM wave. Experimental results show that it meets certain control precision requirements and meet the real-time performance requirements, it is easy to control.
Keywords: Power electronic Rules sampling SPWM F2812
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