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A Robust Digital Control Strategy Using Error Correction Based on the Discrete Lyapunov Theorem

Author

Listed:
  • Guiping Du

    (South China University of Technology, Guangzhou 510641, China)

  • Jiajian Li

    (South China University of Technology, Guangzhou 510641, China)

  • Fada Du

    (South China University of Technology, Guangzhou 510641, China)

  • Zhifei Liu

    (South China University of Technology, Guangzhou 510641, China)

Abstract

This paper presents a robust digital control strategy using error correction techniques to improve the robustness of conventional deadbeat control methods. The proposed control method, based on the discrete converter models, determined control law using an error correction technique based on the discrete Lyapunov stability theorem. The steady-state performance and dynamic response of the presented method was analyzed and verified. The experimental results showed that the method derived in this paper not only offered improved robustness, but also endowed the grid current with lower Total Harmonic Distortion (THD), while still maintaining a fast, dynamic response.

Suggested Citation

  • Guiping Du & Jiajian Li & Fada Du & Zhifei Liu, 2018. "A Robust Digital Control Strategy Using Error Correction Based on the Discrete Lyapunov Theorem," Energies, MDPI, vol. 11(4), pages 1-12, April.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:4:p:848-:d:139666
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    Citations

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    Cited by:

    1. Lynn Verkroost & Joachim Druant & Hendrik Vansompel & Frederik De Belie & Peter Sergeant, 2019. "Performance Degradation of Surface PMSMs with Demagnetization Defect under Predictive Current Control," Energies, MDPI, vol. 12(5), pages 1-20, February.
    2. Yuhan Zhang & Guiping Du & Jiajian Li & Yanxiong Lei, 2020. "Hybrid Control Strategy of MPC and DBC to Achieve a Fixed Frequency and Superior Robustness," Energies, MDPI, vol. 13(5), pages 1-14, March.

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