Optimal Control of Electromagnetic Performance for PMSM Dual-Loop System Based on Improved Fuzzy NLADRC.

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Title: Optimal Control of Electromagnetic Performance for PMSM Dual-Loop System Based on Improved Fuzzy NLADRC.
Authors: Chen, Dehai1,2, Zhang, Haifeng1 3516485006@qq.com, Liu, Ruilong1, Cai, Lingfeng1
Source: Progress in Electromagnetics Research C. 2026, Vol. 169, p216-224. 9p.
Subjects: Sensorless control systems, Permanent magnet motors, Observability (Control theory), Feedback control systems, Electric transients, Torque control, Fuzzy control systems
Abstract: To enhance the electromagnetic transient performance and torque dynamic response quality of permanent magnet synchronous motor (PMSM) vector control systems, an improved fuzzy nonlinear active disturbance rejection control (IFNLADRC)-based dual-loop sensorless electromagnetic control method is proposed. Firstly, the nonlinear function falnew is optimized to resolve the zero-point discontinuity and high-frequency chattering issues of traditional functions. A fuzzy logic controller is employed to optimize the parameters of the nonlinear state error feedback (NLSEF) control law, improving control stability. An improved extended state observer (IESO) is designed to accurately estimate the total system disturbances and achieve modular decoupling, which reduces the difficulty of parameter tuning. The controller adopts dual-loop control for comprehensive and efficient system regulation, and it integrates a linear extended state observer (LESO) with a normalized phase-locked loop (PLL) to realize high-precision sensorless estimation. Simulation results show that the proposed method outperforms traditional controllers in speed response performance, and it significantly suppresses speed fluctuations and current chattering under load disturbances. Under test conditions of speed steps (1000 r/min → 1300 r/min → 1000 r/min) and load torque steps (±10 N), the steady-state speed error after each speed transition in sensorless control is only ±0.06 r/min with accurate rotor position estimation, effectively improving the dynamic response, anti-disturbance performance, and control precision of the PMSM control system. [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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DbLabel: Engineering Source
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  Data: Optimal Control of Electromagnetic Performance for PMSM Dual-Loop System Based on Improved Fuzzy NLADRC.
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  Data: <searchLink fieldCode="AR" term="%22Chen%2C+Dehai%22">Chen, Dehai</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhang%2C+Haifeng%22">Zhang, Haifeng</searchLink><relatesTo>1</relatesTo><i> 3516485006@qq.com</i><br /><searchLink fieldCode="AR" term="%22Liu%2C+Ruilong%22">Liu, Ruilong</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Cai%2C+Lingfeng%22">Cai, Lingfeng</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Progress+in+Electromagnetics+Research+C%22">Progress in Electromagnetics Research C</searchLink>. 2026, Vol. 169, p216-224. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Sensorless+control+systems%22">Sensorless control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Permanent+magnet+motors%22">Permanent magnet motors</searchLink><br /><searchLink fieldCode="DE" term="%22Observability+%28Control+theory%29%22">Observability (Control theory)</searchLink><br /><searchLink fieldCode="DE" term="%22Feedback+control+systems%22">Feedback control systems</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+transients%22">Electric transients</searchLink><br /><searchLink fieldCode="DE" term="%22Torque+control%22">Torque control</searchLink><br /><searchLink fieldCode="DE" term="%22Fuzzy+control+systems%22">Fuzzy control systems</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: To enhance the electromagnetic transient performance and torque dynamic response quality of permanent magnet synchronous motor (PMSM) vector control systems, an improved fuzzy nonlinear active disturbance rejection control (IFNLADRC)-based dual-loop sensorless electromagnetic control method is proposed. Firstly, the nonlinear function falnew is optimized to resolve the zero-point discontinuity and high-frequency chattering issues of traditional functions. A fuzzy logic controller is employed to optimize the parameters of the nonlinear state error feedback (NLSEF) control law, improving control stability. An improved extended state observer (IESO) is designed to accurately estimate the total system disturbances and achieve modular decoupling, which reduces the difficulty of parameter tuning. The controller adopts dual-loop control for comprehensive and efficient system regulation, and it integrates a linear extended state observer (LESO) with a normalized phase-locked loop (PLL) to realize high-precision sensorless estimation. Simulation results show that the proposed method outperforms traditional controllers in speed response performance, and it significantly suppresses speed fluctuations and current chattering under load disturbances. Under test conditions of speed steps (1000 r/min → 1300 r/min → 1000 r/min) and load torque steps (±10 N), the steady-state speed error after each speed transition in sensorless control is only ±0.06 r/min with accurate rotor position estimation, effectively improving the dynamic response, anti-disturbance performance, and control precision of the PMSM control system. [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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    Identifiers:
      – Type: doi
        Value: 10.2528/PIERC26031202
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 216
    Subjects:
      – SubjectFull: Sensorless control systems
        Type: general
      – SubjectFull: Permanent magnet motors
        Type: general
      – SubjectFull: Observability (Control theory)
        Type: general
      – SubjectFull: Feedback control systems
        Type: general
      – SubjectFull: Electric transients
        Type: general
      – SubjectFull: Torque control
        Type: general
      – SubjectFull: Fuzzy control systems
        Type: general
    Titles:
      – TitleFull: Optimal Control of Electromagnetic Performance for PMSM Dual-Loop System Based on Improved Fuzzy NLADRC.
        Type: main
  BibRelationships:
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          Name:
            NameFull: Chen, Dehai
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            NameFull: Zhang, Haifeng
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            NameFull: Liu, Ruilong
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            NameFull: Cai, Lingfeng
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          Dates:
            – D: 01
              M: 07
              Text: 2026
              Type: published
              Y: 2026
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              Value: 19378718
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              Value: 169
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            – TitleFull: Progress in Electromagnetics Research C
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