A precise method to estimate the initial rotor position of IPMSM

作者：Li Yituo^*; Lu Haifeng; Qu Wenlong; Sheng Shuang

来源：6th IET International Conference on Power Electronics, Machines and Drives, PEMD 2012, 2012-03-27 to 2012-03-29.

DOI：10.1049/cp.2012.0148

• Accuracy
• Current response
• DSP controller
• High frequency
• High-frequency voltage
• Initial rotor position
• Interior permanent magnet synchronous motor
• IPMSM
• Modified model
• Precise method
• Rotor position

A precise method to estimate the initial rotor position of Interior Permanent Magnet Synchronous Motor (IPMSM) is proposed in this paper. In order to improve the accuracy of estimation, a modified model of IPMSM considering saturation is established. A high frequency rotating voltage is imposed on the stator of the motor; the current responses of the motor are analysed in the DSP controller and the accuracy of the rotor position information is obtained with simple polarity detection. Simulations and experiments are done to verify the correctness of the proposed IPMSM model. And also experimental results for a 40-kw IPMSM system demonstrate the feasibility of the proposed method.

• 出版日期2012
• 单位清华大学