An Application of State Observer in Current Control for PMSM Based on Entire Integer Operation

LIU Jie, HAO Shuanghui, ZHENG Weifeng, HAO Minghui
2007 Proceedings of International Conference on Leading Edge Manufacturing in 21st century LEM21  
The application of state observer structures in digital current closed-loop control based on integer operation for permanent magnet synchronous motor (PMSM) is considered. The state observer predicts the currents, and overcomes the filter delay as it suppresses the noise of samples. Accordingly, the resulting control structure is shown to heighten the response frequency and to improve disturbance rejection capabilities. Experimental result generated by a prototype controller demonstrates the
more » ... demonstrates the predictable effects of state observer and the improvement of system performance. And the influence of parameter variation on the observer response characteristic and system performance is discussed.
doi:10.1299/jsmelem.2007.4.8d420 fatcat:avkohsygjfbabj7evyrvdqhjj4