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<p>This article deals with solving the challenges of model uncertainty disturbances, as well as controlling the rate of damping variations during the speed control of permanent magnet synchronous motors (PMSMs). The solution presented in this article is a hybrid solution consisting of a sliding mode control (SMC) method and nonlinear state feedback control. Since the sliding control method is considered a robust method, this article uses this controller to deal with the uncertain problem. In the second part of this hybrid controller, which consists of a nonlinear state feedback controller, two important challenges are solved. More precisely, in the second part of this hybrid controller, the problem of disturbances and the control of the rate of damping changes are solved. In this part, by solving an inequality problem, the linear matrix of the controller gain is calculated in such a way that the L2-gain performance is restored and the effect of disturbances is removed. In this way, the damping change rate is also adjusted. In order to check the performance of the proposed method, a series of practical tests have been conducted, and the results indicate that the proposed method has very good effectiveness and performance.</p>

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A combined strategy based on L2-gain nonlinear feedback and sliding concept for speed control of PMSM

  • 期刊论文

  • 发表日期：

    2025年4月29日

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  • Anyuan Yang,
  • Yang Li

摘要

This article deals with solving the challenges of model uncertainty disturbances, as well as controlling the rate of damping variations during the speed control of permanent magnet synchronous motors (PMSMs). The solution presented in this article is a hybrid solution consisting of a sliding mode control (SMC) method and nonlinear state feedback control. Since the sliding control method is considered a robust method, this article uses this controller to deal with the uncertain problem. In the second part of this hybrid controller, which consists of a nonlinear state feedback controller, two important challenges are solved. More precisely, in the second part of this hybrid controller, the problem of disturbances and the control of the rate of damping changes are solved. In this part, by solving an inequality problem, the linear matrix of the controller gain is calculated in such a way that the L2-gain performance is restored and the effect of disturbances is removed. In this way, the damping change rate is also adjusted. In order to check the performance of the proposed method, a series of practical tests have been conducted, and the results indicate that the proposed method has very good effectiveness and performance.