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Fault Tolerant Control Method based on Fourier Transform Decoupling
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Yi YANG1, 2, Zhongzhe ZHANG1, 2, Hui ZHAO1, 2, Qiqi LI1, 2, Zhishu XU1, 2
Missiles and Space Vehicles | 2024, 47(3) : 50 - 56
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Missiles and Space Vehicles | 2024, 47(3): 50-56
• Guidance, Navigation and Control •
Fault Tolerant Control Method based on Fourier Transform Decoupling
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Yi YANG1, 2, Zhongzhe ZHANG1, 2, Hui ZHAO1, 2, Qiqi LI1, 2, Zhishu XU1, 2
Affiliations
  • 1Beijing Institute of Precision Mechatronics and Controls,Beijing,100076
  • 2Innovation Center for Control Actuators,Beijing,100076
Published: 2024-06-25 doi: 7.654/j.issn.2097-1974.20240308
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In the fault-tolerant control of polyphase motors, hysteresis control is generally adopted for the more complex non-sinusoidal fault-tolerant current obtained by multi-constraint solving. Compared with hysteresis control, voltage space vector control has the advantages of low torque ripple and low energy consumption, which is more common in the control of polyphase motors. In order to solve the problem that the non-sinusoidal fault-tolerant current cannot be decoupled directly for voltage space vector control, Fourier transform is introduced and the non-sinusoidal fault-tolerant current is decomposed into fundamental current and third harmonic current to realize the decoupling transformation of the non-sinusoidal fault-tolerant current. Based on this, the decoupling transformation matrix is derived and the correctness of the processing method is verified by simulation analysis. The results show that this method can solve the problem that the non-sinusoidal fault-tolerant current under open fault-tolerant control of polyphase permanent magnet synchronous motor cannot be directly applied to voltage space vector control, so as to reduce the torque ripple and improve the motor current stability.

five-phase permanent magnet synchronous motor  /  fault tolerant control  /  Fourier transform  /  decoupling  /  voltage space vector control
Yi YANG, Zhongzhe ZHANG, Hui ZHAO, Qiqi LI, Zhishu XU. Fault Tolerant Control Method based on Fourier Transform Decoupling[J]. Missiles and Space Vehicles, 2024 , 47 (3) : 50 -56 . DOI: 7.654/j.issn.2097-1974.20240308
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Year 2024 volume 47 Issue 3
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Article Info
doi: 7.654/j.issn.2097-1974.20240308
  • Receive Date：2024-01-17
  • Online Date：2025-07-04
  • Published：2024-06-25
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  • Received：2024-01-17
  • Revised：2024-05-06
Affiliations
    1Beijing Institute of Precision Mechatronics and Controls,Beijing,100076
    2Innovation Center for Control Actuators,Beijing,100076
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