Scholarlink

<p>In this paper, we introduce a composite nested controller to address the challenge of actuator saturation in a permanent magnet synchronous motor (PMSM) drive system. Firstly, a nested controller with preselected parameters is developed by integrating a linear control law with a hierarchical saturation structure. This approach solves the instability issue induced by actuator saturation in PMSM drive system and enhances the system stability. Then, a sliding mode disturbance observer (SMDO) is strategically integrated to estimate the perturbations in the PMSM system. Subsequently, a composite controller by combining the disturbance compensation technique is devised to further enhance the response dynamics and anti-disturbance performance of the PMSM system. Compared to conventional saturation controllers, the proposed composite controller offers enhanced design flexibility and significantly improves both the dynamic response and steady-state performance of the PMSM speed control system. Finally, the efficacy of the proposed composite control algorithm is substantiated through comprehensive experimental comparisons.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

SMDO-based nested controller design for PMSM drive system with input saturation

  • 期刊论文

  • 发表日期：

    2026年2月26日

查看全文
  • Yiqing Ma,
  • Li Ma,
  • Shihong Ding,
  • Keqi Mei

摘要

In this paper, we introduce a composite nested controller to address the challenge of actuator saturation in a permanent magnet synchronous motor (PMSM) drive system. Firstly, a nested controller with preselected parameters is developed by integrating a linear control law with a hierarchical saturation structure. This approach solves the instability issue induced by actuator saturation in PMSM drive system and enhances the system stability. Then, a sliding mode disturbance observer (SMDO) is strategically integrated to estimate the perturbations in the PMSM system. Subsequently, a composite controller by combining the disturbance compensation technique is devised to further enhance the response dynamics and anti-disturbance performance of the PMSM system. Compared to conventional saturation controllers, the proposed composite controller offers enhanced design flexibility and significantly improves both the dynamic response and steady-state performance of the PMSM speed control system. Finally, the efficacy of the proposed composite control algorithm is substantiated through comprehensive experimental comparisons.