Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer

Mengting Ye, Tingna Shi, Huimin Wang, Xinmin Li and Changliang Xia
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Mengting Ye: School of Electrical and Information Engineering, Tianjin University, Tianjin 300072, China
Tingna Shi: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China
Huimin Wang: School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin 300387, China
Xinmin Li: School of Electrical Engineering and Automation, Tianjin Polytechnic University, Tianjin 300387, China
Changliang Xia: College of Electrical Engineering, Zhejiang University, Hangzhou 310027, China

Energies, 2019, vol. 12, issue 19, 1-15

Abstract: Different from the traditional method of the interior permanent magnet synchronous motor (IPMSM), the sensorless maximum torque per ampere (MTPA) control scheme in this paper does not need two observers for rotor position and d-q axis inductances, respectively. It only needs an adaptive sliding mode observer (ASMO) based on the extended flux (EF) to realize double-loop control and MTPA operation simultaneously. The adaptive mechanism of rotor speed is designed to ensure stability of the ASMO. The rotor position and the difference between d-axis and q-axis inductances are obtained from the estimated EF to acquire the MTPA points when the position sensor of the IPMSM is absent. The proposed scheme is realized on a 20kW IPMSM where the sensorless control performance and the MTPA control performance are tested. The effectiveness of the proposed method is verified by the experiment results.

Keywords: permanent magnet synchronous motor; maximum torque per ampere; sensorless; adaptive sliding mode observer; extended flux (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View complete reference list from CitEc
Citations: View citations in EconPapers (10)

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