Accurate and Efficient Torque Control of an Interior Permanent Magnet Synchronous Motor in Electric Vehicles Based on Hall-Effect Sensors

Lei Yu, Youtong Zhang and Wenqing Huang
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Lei Yu: Laboratory of Low Emission Vehicle, Beijing Institute of Technology, Beijing 100081, China
Youtong Zhang: Laboratory of Low Emission Vehicle, Beijing Institute of Technology, Beijing 100081, China
Wenqing Huang: United Automotive Electronic System Co., Ltd., Shanghai 201206, China

Energies, 2017, vol. 10, issue 3, 1-15

Abstract: Abstract : In this paper, an effective method to achieve accurate and efficient torque control of an interior permanent magnet synchronous motor (IPMSM) in electric vehicles, based on low-resolution Hall-effect sensors, is proposed. The high-resolution rotor position is estimated by a proportional integral (PI) regulator using the deviation between actual output power and reference output power. This method can compensate for the Hall position sensor mounting error, and estimate rotor position continuously and accurately. The permanent magnetic flux linkage is also estimated based on a current PI controller. Other important parameters, such as the d -axis and q -axis inductances, stator resistance, and energy loss, are measured offline by experiments. The measured parameters are saved as lookup tables which cover the entire current operating range at different current levels. Based on these accurate parameters, a maximum torque per ampere (MTPA) control strategy, combined with the feedforward parameter iteration method, can be achieved for accurate and efficient torque control. The effectiveness of the proposed method is verified by both simulation and experimental results.

Keywords: hall-effect sensor; rotor position estimation; interior permanent magnet synchronous motor (IPMSM); torque control; electric vehicle (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: 2017
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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