Variable Reaching Law Nonsingular Fast Terminal Sliding Mode Observer-Based Deadbeat Fault-tolerant Compensation Control for IPMSM's Demagnetization Fault.

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Title: Variable Reaching Law Nonsingular Fast Terminal Sliding Mode Observer-Based Deadbeat Fault-tolerant Compensation Control for IPMSM's Demagnetization Fault.
Authors: Wen, Dingdou1, Xia, Dengliang1, Wei, Xiaorui2, Wu, Wenjie1, Xiao, Yuanyuan3 494492524@qq.com
Source: Progress in Electromagnetics Research C. 2026, Vol. 169, p205-215. 11p.
Subjects: Demagnetization, Fault-tolerant control systems, Permanent magnet motors, Robust control
Abstract: To address the issues of electromagnetic torque attenuation and insufficient robustness caused by demagnetization faults in interior permanent magnet synchronous motors (IPMSMs), a deadbeat fault-tolerant compensation control (DBFTCC) strategy based on a variable reaching law nonsingular fast terminal sliding mode observer (VRL-NFTSMO) is proposed. First, the VRL-NFTSMO is designed to achieve a precise observation of the flux linkage and next current value. Second, DBFTCC is constructed based on flux linkage and current information, which can effectively suppress electromagnetic torque attenuation caused by demagnetization faults, improve system robustness, and achieve reliable fault-tolerant control under demagnetization faults. Finally, the experimental results indicate that the proposed compensation strategy has stronger fault tolerance and robustness than traditional methods when the IPMSMs suffer from both demagnetization fault and large load variation. [ABSTRACT FROM AUTHOR]
Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Variable Reaching Law Nonsingular Fast Terminal Sliding Mode Observer-Based Deadbeat Fault-tolerant Compensation Control for IPMSM's Demagnetization Fault.
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  Data: <searchLink fieldCode="AR" term="%22Wen%2C+Dingdou%22">Wen, Dingdou</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Xia%2C+Dengliang%22">Xia, Dengliang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Wei%2C+Xiaorui%22">Wei, Xiaorui</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Wu%2C+Wenjie%22">Wu, Wenjie</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Xiao%2C+Yuanyuan%22">Xiao, Yuanyuan</searchLink><relatesTo>3</relatesTo><i> 494492524@qq.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 169, p205-215. 11p.
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  Data: <searchLink fieldCode="DE" term="%22Demagnetization%22">Demagnetization</searchLink><br /><searchLink fieldCode="DE" term="%22Fault-tolerant+control+systems%22">Fault-tolerant control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Permanent+magnet+motors%22">Permanent magnet motors</searchLink><br /><searchLink fieldCode="DE" term="%22Robust+control%22">Robust control</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To address the issues of electromagnetic torque attenuation and insufficient robustness caused by demagnetization faults in interior permanent magnet synchronous motors (IPMSMs), a deadbeat fault-tolerant compensation control (DBFTCC) strategy based on a variable reaching law nonsingular fast terminal sliding mode observer (VRL-NFTSMO) is proposed. First, the VRL-NFTSMO is designed to achieve a precise observation of the flux linkage and next current value. Second, DBFTCC is constructed based on flux linkage and current information, which can effectively suppress electromagnetic torque attenuation caused by demagnetization faults, improve system robustness, and achieve reliable fault-tolerant control under demagnetization faults. Finally, the experimental results indicate that the proposed compensation strategy has stronger fault tolerance and robustness than traditional methods when the IPMSMs suffer from both demagnetization fault and large load variation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Progress in Electromagnetics Research C is the property of Electromagnetics Academy and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.2528/PIERC26030902
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 205
    Subjects:
      – SubjectFull: Demagnetization
        Type: general
      – SubjectFull: Fault-tolerant control systems
        Type: general
      – SubjectFull: Permanent magnet motors
        Type: general
      – SubjectFull: Robust control
        Type: general
    Titles:
      – TitleFull: Variable Reaching Law Nonsingular Fast Terminal Sliding Mode Observer-Based Deadbeat Fault-tolerant Compensation Control for IPMSM's Demagnetization Fault.
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            NameFull: Wen, Dingdou
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            NameFull: Xia, Dengliang
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            NameFull: Wei, Xiaorui
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            NameFull: Wu, Wenjie
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            NameFull: Xiao, Yuanyuan
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          Dates:
            – D: 01
              M: 07
              Text: 2026
              Type: published
              Y: 2026
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              Value: 169
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            – TitleFull: Progress in Electromagnetics Research C
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