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Sensorless Control of Permanent Magnet Synchronous Motor for Electric Vehicle Based on Phase Locked Loop

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Abstract

Under the low speed condition, a method of real-time tracking and estimation of rotor position based on PLL technology is proposed, which is used to solve the control system detection accuracy problem of permanent magnet synchronous motor (PMSM) for electric vehicles. The control principles of high frequency signal fluctuation are analyzed, and the mathematical model of three phases PMSM under rotor estimated synchronous rotating reference frame is established. The basic principles of phase locked loop (PLL) are analyzed. Based on phase locked loop, a rotor position estimation method is designed and analyzed. Finally, simulation model of sensorless control system is set up, and the simulation experiment is carried out. The simulation experiment results show that the sensorless control based on PLL can obtain the accurate rotor positions and the excellent control ability. Therefore, the rotor positions estimation method based on PLL is an ideal method for the sensorless control of electric vehicle drive motor, which can provide theoretical and technical support for improving the control precision of PMSM and quality of electric vehicles.

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Acknowledgement

This research was supported by the National Natural Science Foundation of China (Grant No. 52162044 and 52060776), the High-end Talents Project of Science and Technology Innovation of Jiangxi Province (Grant No. jxsq201920 1119), the Foundation of Educational Department of Jiangxi Province (Grant No. GJJ190305), and the Innovation Special Fund of 2020 Graduate Student of Jiangxi Province (Grant No. YC2020-S334).

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Authors and Affiliations

  1. Key Laboratory of Conveyance and Equipment Ministry of Education, East China Jiaotong University, Nanchang, 330013, China

    Qiping Chen, Yue Tian, Sheng Kang, Yinquan Yu, Junling Ding & Yinfei Xie

  2. Nanchang Key Laboratory of Intelligent and Connected New Energy Vehicles, East China Jiaotong University, Nanchang, 330013, China

    Qiping Chen & Yue Tian

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  1. Qiping Chen
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  2. Yue Tian
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  3. Sheng Kang
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  4. Yinquan Yu
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  5. Junling Ding
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  6. Yinfei Xie
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Correspondence to Qiping Chen.

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Chen, Q., Tian, Y., Kang, S. et al. Sensorless Control of Permanent Magnet Synchronous Motor for Electric Vehicle Based on Phase Locked Loop. Int.J Automot. Technol. 22, 1409–1414 (2021). https://doi.org/10.1007/s12239-021-0122-3

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  • DOI: https://doi.org/10.1007/s12239-021-0122-3

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