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<p>This paper proposes a high-performance control strategy for speed control of permanent magnet synchronous motors (PMSMs) for vehicle applications. The recommended controller is the arctangent non-singular terminal sliding mode (ATNTSM) controller, which is developed from a Lyapunov stability theory standpoint and can avoid chattering while achieving finite-time convergence of tracking errors. The ATNTSM has less complexity in the design and has better control performance compared to a typical non-singular terminal sliding mode controller (NTSMC). It also reaches convergence more quickly than both the linear terminal sliding mode (LSM) and NTSMC methods assuming the same control inputs thus producing a better dynamic response for automotive PMSM drives. The controller has been validated through an extensive trial, designed specifically to verify robustness to the conditions found in real vehicle application, while verifying high-speed tracking precision and stability of the system. Overall, this research provides useful pathways for developing PMSM speed control methods, and can lead to electric vehicle drives that are more responsive and reliable.</p>

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Design of a Novel Speed Control for Permanent Magnet Synchronous Motor Based on Arctangent Non-Singular Terminal Sliding Mode Controller with Guaranteed Finite Time Stability

  • 期刊论文

  • 发表日期：

    2026年6月16日

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  • Sun Ping

摘要

This paper proposes a high-performance control strategy for speed control of permanent magnet synchronous motors (PMSMs) for vehicle applications. The recommended controller is the arctangent non-singular terminal sliding mode (ATNTSM) controller, which is developed from a Lyapunov stability theory standpoint and can avoid chattering while achieving finite-time convergence of tracking errors. The ATNTSM has less complexity in the design and has better control performance compared to a typical non-singular terminal sliding mode controller (NTSMC). It also reaches convergence more quickly than both the linear terminal sliding mode (LSM) and NTSMC methods assuming the same control inputs thus producing a better dynamic response for automotive PMSM drives. The controller has been validated through an extensive trial, designed specifically to verify robustness to the conditions found in real vehicle application, while verifying high-speed tracking precision and stability of the system. Overall, this research provides useful pathways for developing PMSM speed control methods, and can lead to electric vehicle drives that are more responsive and reliable.