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An Improved Finite Control Set Model Predictive Current Control for a Two-Phase Hybrid Stepper Motor Fed by a Three-Phase VSI

Author

Listed:
  • Chunlei Wang

    (School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
    Tianjin Railway Technical and Vocational College, Tianjin 300240, China)

  • Dongxing Cao

    (School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China)

  • Xiangxu Qu

    (School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China)

  • Chen Fan

    (School of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China)

Abstract

In this paper, an improved finite control set model predictive current control (FCS-MPCC) is proposed for a two-phase hybrid stepper motor fed by a three-phase voltage source inverter (VSI). The conventional FCS-MPCC selects an optimal voltage vector (VV) from six active and one null VVs by evaluating a simple cost function and then applies the optimal VV directly to the VSI. Though the implementation is simple, it features a large current ripple and total harmonic distortion (THD). The proposed improved FCS-MPCC builds an extended control set consisting of 37 VVs to replace the original control set with only seven VVs. The increase in the amount of VVs helps to regulate the current more accurately. In each control period, the improved FCS-MPCC takes advantage of deadbeat control to calculate a reference VV, and only the three VVs adjacent to the reference VV are predicted and evaluated, which decrease the computational workload significantly. Build waveform patterns for all VVs in the unbalanced circuit structure to modulate the optimal VV using discrete space vector modulation, which improves the current quality in reducing current ripple and THD. The comparative simulations and experimental results validate the effectiveness of the proposed method.

Suggested Citation

  • Chunlei Wang & Dongxing Cao & Xiangxu Qu & Chen Fan, 2022. "An Improved Finite Control Set Model Predictive Current Control for a Two-Phase Hybrid Stepper Motor Fed by a Three-Phase VSI," Energies, MDPI, vol. 15(3), pages 1-17, February.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:3:p:1222-:d:744129
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    References listed on IDEAS

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    1. Chunlei Wang & Dongxing Cao, 2020. "New Sensorless Speed Control of a Hybrid Stepper Motor Based on Fuzzy Sliding Mode Observer," Energies, MDPI, vol. 13(18), pages 1-19, September.
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    Cited by:

    1. Artun Sel & Bilgehan Sel & Umit Coskun & Cosku Kasnakoglu, 2022. "SOS-Based Nonlinear Observer Design for Simultaneous State and Disturbance Estimation Designed for a PMSM Model," Sustainability, MDPI, vol. 14(17), pages 1-12, August.

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