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The digital signal processor (DSP) can be used for language processing , image processing , high-speed control , digital communications , vibration and noise signal processing , sonar and radar signal processing , instrumentation , robotics and other fields . Attaches great importance to academic and engineering theory and algorithms of digital signal processing can be implemented in real time , and quickly extended to applications , and is considered the catalyst of the digital revolution . Permanent magnet synchronous motor (PMSM) can be run in a poor working environment in the petroleum, coal, and large construction machinery , which not only accelerated it to replace the asynchronous motor speed , as well as the development of permanent magnet synchronous motor inverter the vast space. This thesis is designed to achieve a permanent magnet synchronous motor the DSP vector control system , the structure and the mathematical model of the permanent magnet synchronous motor , the principle and implementation of vector control methods , including vector control motor equivalent circuit , three - phase coordinate system , stationary and rotating coordinate system of the two-phase motor basic equations and vector control such as the basic formula . On the hardware side , TMS320F2812 main control chip , extended digital interface and analog interface development board based on its power drive DR15A combination of permanent magnet synchronous motor and optical encoder , and the completion of the current and speed detection circuit , drive isolation circuit , keyboard circuit , display circuit part ; software the CCS software platform , as the main programming language , C language , the completion of the main program , interrupt program , the current testing program , keyboard program part , successfully achieve SVPWM output and its control of permanent magnet synchronous motor . In the end of the paper gives the results of the experimental tests , including SVPWM waveform , phase current waveform , phase voltage waveform and governor curve , and its brief analysis .
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