A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives
Sliding mode controllers (SMCs) are commonly used in permanent-magnet synchronous machines (PMSMs) for current control due to their robustness and simplicity. However, high gains used in traditional discontinuous SMC implementations can induce chattering. To address this, disturbance observers are e...
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2025-01-01
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| Series: | IEEE Open Journal of Industry Applications |
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| Online Access: | https://ieeexplore.ieee.org/document/10830512/ |
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| author | Elia Brescia Massimo Tipaldi Francesco Torelli Paolo Roberto Massenio Luigi Pio Savastio Giuseppe Leonardo Cascella Enrico De Tuglie |
| author_facet | Elia Brescia Massimo Tipaldi Francesco Torelli Paolo Roberto Massenio Luigi Pio Savastio Giuseppe Leonardo Cascella Enrico De Tuglie |
| author_sort | Elia Brescia |
| collection | DOAJ |
| description | Sliding mode controllers (SMCs) are commonly used in permanent-magnet synchronous machines (PMSMs) for current control due to their robustness and simplicity. However, high gains used in traditional discontinuous SMC implementations can induce chattering. To address this, disturbance observers are employed to maintain robustness without resorting to high gains. This article introduces a novel continuous asymptotic SMC method for PMSM currents that avoids the need for disturbance observers, resulting in reduced complexity and tuning efforts. The control laws of the two <inline-formula><tex-math notation="LaTeX">$dq$</tex-math></inline-formula>-axes currents are obtained through the sensitivity of the tracking errors with respect to the controller outputs. The robustness and convergence properties of the proposed control laws are theoretically studied using the Lyapunov approach. Numerical simulations are used to evaluate the performance and robustness of the proposed controller, followed by experiments to compare it to a discontinuous terminal SMC with and without a disturbance observer. The results clearly demonstrate the superiority of the proposed controller that ensures fast convergence, low chattering, and high robustness to parameter variations without requiring the design of additional disturbance observers. |
| format | Article |
| id | doaj-art-1fdeac859ffa46eca489186be069fa33 |
| institution | Kabale University |
| issn | 2644-1241 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Open Journal of Industry Applications |
| spelling | doaj-art-1fdeac859ffa46eca489186be069fa332025-01-24T00:02:17ZengIEEEIEEE Open Journal of Industry Applications2644-12412025-01-016485810.1109/OJIA.2025.352662810830512A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM DrivesElia Brescia0https://orcid.org/0000-0002-3179-4427Massimo Tipaldi1https://orcid.org/0000-0003-4003-1613Francesco Torelli2Paolo Roberto Massenio3https://orcid.org/0000-0002-8552-3251Luigi Pio Savastio4https://orcid.org/0009-0003-3837-9212Giuseppe Leonardo Cascella5https://orcid.org/0000-0003-1471-9799Enrico De Tuglie6https://orcid.org/0000-0003-1347-4793Department of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalyRetired, Politecnico di Bari, Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalyDepartment of Electrical and Information Engineering, Politecnico di Bari, Bari, ItalySliding mode controllers (SMCs) are commonly used in permanent-magnet synchronous machines (PMSMs) for current control due to their robustness and simplicity. However, high gains used in traditional discontinuous SMC implementations can induce chattering. To address this, disturbance observers are employed to maintain robustness without resorting to high gains. This article introduces a novel continuous asymptotic SMC method for PMSM currents that avoids the need for disturbance observers, resulting in reduced complexity and tuning efforts. The control laws of the two <inline-formula><tex-math notation="LaTeX">$dq$</tex-math></inline-formula>-axes currents are obtained through the sensitivity of the tracking errors with respect to the controller outputs. The robustness and convergence properties of the proposed control laws are theoretically studied using the Lyapunov approach. Numerical simulations are used to evaluate the performance and robustness of the proposed controller, followed by experiments to compare it to a discontinuous terminal SMC with and without a disturbance observer. The results clearly demonstrate the superiority of the proposed controller that ensures fast convergence, low chattering, and high robustness to parameter variations without requiring the design of additional disturbance observers.https://ieeexplore.ieee.org/document/10830512/Chatteringcurrent controlLyapunov stabilitypermanent-magnet synchronous machines (PMSMs)robust controlsliding mode |
| spellingShingle | Elia Brescia Massimo Tipaldi Francesco Torelli Paolo Roberto Massenio Luigi Pio Savastio Giuseppe Leonardo Cascella Enrico De Tuglie A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives IEEE Open Journal of Industry Applications Chattering current control Lyapunov stability permanent-magnet synchronous machines (PMSMs) robust control sliding mode |
| title | A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives |
| title_full | A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives |
| title_fullStr | A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives |
| title_full_unstemmed | A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives |
| title_short | A Continuous Sliding Mode Current Control Based on the Sensitivity Theory for PMSM Drives |
| title_sort | continuous sliding mode current control based on the sensitivity theory for pmsm drives |
| topic | Chattering current control Lyapunov stability permanent-magnet synchronous machines (PMSMs) robust control sliding mode |
| url | https://ieeexplore.ieee.org/document/10830512/ |
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