Eztended State Sliding Mode Observer of PMSM with Chattering Suppression
Extended State Sliding Mode Observer of PMSM was presented based on the PMSM extended state equation, of which the state variables were current and flux. The error between real and observed current was selected as sliding hyperplane. When the sliding mode occurs, the error was zero, and the equivalent control signals contained the information about the flux observation error. The error converges to zero when the equivalent signals were inputted to flux equation. The chattering phenomenon was suppressed well in the flux observation, from which the rotor angle can be calculated directly without filter. The influence of speed estimation error to flux observation was analyzed, and feedback matrix was calculated based on the analysis. In the experiments, the observer was implemented with Infineon XC167CM controller. The experiment results show that the proposed method can precisely estimate the position and speed of the rotor, and the system has good dynamic and static performances.
Jianyong Su Guijie Yang Rui Gao Jane Wang
Harbin Institute of Technology, China Infineon Technologies China Co., Ltd, China
国际会议
The Eighth International PCIM China(第八届电子功率器件、智能传送、电源质量国际研讨会)
上海
英文
215-218
2009-06-02（万方平台首次上网日期，不代表论文的发表时间）