Abstract
At present, the AC servo system which uses the PMSM as the control object is widely used in such areas as the CNC machine tools, industrial robots and space. No sensor-based servo system is becoming the development trend of high-performance permanent magnet synchronous motor control system. The paper introduced a design of sensorless PMSM (Permanent Magnet Synchronous Motor) control system based on TMS320F2812. The performance characteristic of TMS320F2812 was expatiated, and it’s function in the sensorless PMSM control system was given in the paper. We discussed the composition of hardware and the design of software. The system used of the intelligent control strategies such as SVPWM (Space Vector Pulse Width Modulation) and SMO(Sliding Mode Observer), and made full use of the DSP’s high-speed computing power and abundance of on-chip resources, to achieve system real-time control, make the system having a good dynamic quality and steady performance. The processor is suitable in the field of motor control in the extreme, and has a wide range of practical value.
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