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Speed Fluctuation Suppression Based on an Adaptive Periodic Disturbance Observer for an Inverter Compressor

Author

Listed:
  • Fankun Meng

    (School of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China)

  • Zhengguo Li

    (School of Automobile and Transportation, Shenzhen Polytechnic, Shenzhen 518055, China)

  • Xiaoli Sun

    (School of Automobile and Transportation, Shenzhen Polytechnic, Shenzhen 518055, China)

  • Xiaoqin Wen

    (School of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China)

  • Michael Negnevitsky

    (School of Engineering, College of Science and Engineering, University of Tasmania, Tasmania 7001, Australia)

  • Linru You

    (School of Automation Science and Engineering, South China University of Technology, Guangzhou 510641, China)

Abstract

Repetitive operations have been extensively used in the inverter compressor refrigeration industry. The approximately periodic disturbance caused by repetitive operations must be compensated to realize stable and high-efficiency operation. In this paper, a periodic disturbance observer (PDOB) is proposed to tackle the speed fluctuation of an inverter compressor in the low-frequency range. Periodic disturbance, consisting of a fundamental wave and corresponding harmonics, can thus be estimated and compensated; in addition, sensitivity and complementary sensitivity can reach a compromise through the use of a certain parameter. Aiming at a different operation environment, an adaptive notch filter based on the Steiglitz–McBride method is employed to estimate the fundamental frequency of periodic disturbance. Finally, the feasibility of our approach is verified by MATLAB simulation, and experiments are implemented to illustrate that speed fluctuation can be more effectively attenuated by the proposed method in comparison with general DOB.

Suggested Citation

  • Fankun Meng & Zhengguo Li & Xiaoli Sun & Xiaoqin Wen & Michael Negnevitsky & Linru You, 2020. "Speed Fluctuation Suppression Based on an Adaptive Periodic Disturbance Observer for an Inverter Compressor," Energies, MDPI, vol. 13(19), pages 1-23, September.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:19:p:5014-:d:418321
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    References listed on IDEAS

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    1. Wei Jin & Yongli Li & Guangyu Sun & Lizhi Bu, 2017. "H∞ Repetitive Control Based on Active Damping with Reduced Computation Delay for LCL-Type Grid-Connected Inverters," Energies, MDPI, vol. 10(5), pages 1-19, April.
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