TY - JFULL AU - Gu Shan-Mao and He Feng-You and Ye Sheng-Wen and Ma Zhi-Xun PY - 2009/11/ TI - Study on Position Polarity Compensation for Permanent Magnet Synchronous Motor Based on High Frequency Signal Injection T2 - International Journal of Electronics and Communication Engineering SP - 1851 EP - 1856 VL - 3 SN - 1307-6892 UR - https://publications.waset.org/pdf/7138 PU - World Academy of Science, Engineering and Technology NX - Open Science Index 34, 2009 N2 - The application of a high frequency signal injection method as speed and position observer in PMSM drives has been a research focus. At present, the precision of this method is nearly good as that of ten-bit encoder. But there are some questions for estimating position polarity. Based on high frequency signal injection, this paper presents a method to compensate position polarity for permanent magnet synchronous motor (PMSM). Experiments were performed to test the effectiveness of the proposed algorithm and results present the good performance. ER -