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DC-Link Current Control with Inverter Nonlinearity Compensation for Permanent Magnet Synchronous Motor Drives

Author

Listed:
  • Kan Wang

    (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China)

  • Zhong Wu

    (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China)

  • Zhongyi Chu

    (School of Instrumentation and Optoelectronic Engineering, Beihang University, Beijing 100191, China)

Abstract

For permanent magnet synchronous motors (PMSMs) supplied with a voltage source inverter, current control strategies are commonly implemented under the synchronously rotating reference frame. In order to simplify the system structure, three-phase currents can be measured with a single DC-link current sensor using the phase current reconstruction technique. However, it still needs to follow the conventional AC current control approach. In this paper, a DC-link current control method for PMSMs is proposed to further simplify the control system. The problem of phase current control was separated into the problems of amplitude control and phase control. Then, amplitude control was achieved using a closed-loop controller directly tracking the DC-link current; while phase control was achieved by AC-side pulse width modulation (PWM) following the phase angle of back electromotive force. The compensation for nonlinear distortion of the inverter was taken into account during the control process. Finally, the proposed method realized three-phase current control with a single current sensor and controller, and achieved the purpose of electromagnetic torque control. Experimental results demonstrate the effectiveness of the proposed method.

Suggested Citation

  • Kan Wang & Zhong Wu & Zhongyi Chu, 2020. "DC-Link Current Control with Inverter Nonlinearity Compensation for Permanent Magnet Synchronous Motor Drives," Energies, MDPI, vol. 13(3), pages 1-16, January.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:3:p:546-:d:312079
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    References listed on IDEAS

    as
    1. Yong-Min You, 2019. "Optimal Design of PMSM Based on Automated Finite Element Analysis and Metamodeling," Energies, MDPI, vol. 12(24), pages 1-18, December.
    2. Xiaobin Mu & Guofu Chen & Xiang Wang & Jinping Zhao & Weimin Wu & Frede Blaabjerg, 2019. "Multi-Frequency Single Loop Passivity-Based Control for LC-Filtered Stand-Alone Voltage Source Inverter," Energies, MDPI, vol. 12(23), pages 1-15, November.
    3. Mengting Ye & Tingna Shi & Huimin Wang & Xinmin Li & Changliang Xia, 2019. "Sensorless-MTPA Control of Permanent Magnet Synchronous Motor Based on an Adaptive Sliding Mode Observer," Energies, MDPI, vol. 12(19), pages 1-15, October.
    4. Zih-Cing You & Cheng-Hong Huang & Sheng-Ming Yang, 2019. "Online Current Loop Tuning for Permanent Magnet Synchronous Servo Motor Drives with Deadbeat Current Control," Energies, MDPI, vol. 12(18), pages 1-19, September.
    5. Shuai Dong & Qianfan Zhang & Hongwei Ma & Rui Wang, 2019. "Design for the Interior Permanent Magnet Synchronous Motor Drive System Based on the Z-Source Inverter," Energies, MDPI, vol. 12(17), pages 1-14, August.
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