This article presents a composite sliding mode control (CSMC) method for speed control of surface-mounted permanent magnet synchronous motors (SPMSMs). The proposed CSMC consists of a new sliding mode control (SMC) based on a novel hybrid reaching law (HRL) and an extended sliding mode disturbance observer (ESMDO). The new HRL is composed of two parts: a terminal reaching part and an exponential plus proportional reaching part. It can effectively suppress the chattering and reduce the reaching time compared with the conventional constant plus proportional rate reaching law (CPRL). The ESMDO is designed based on CPRL. It can estimate the extra chattering produced by the drive system’s lumped disturbance and compensate for the controller’s output. Based on the proposed new SMC and ESMDO, an antidisturbance sliding mode speed controller is designed to improve the performance of SPMSM drive systems. The performance of the proposed method has been validated experimentally and compared with the CPRL-based SMC methods under different conditions.

中文翻译：

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基于带扰动补偿的新型混合到达律的 SPMSM 驱动复合滑模控制

本文介绍了一种用于表面贴装永磁同步电机 (SPMSM) 速度控制的复合滑模控制 (CSMC) 方法。所提出的 CSMC 由基于新型混合到达定律 (HRL) 的新型滑模控制 (SMC) 和扩展滑模干扰观测器 (ESMDO) 组成。新的HRL由两部分组成：终端到达部分和指数加比例到达部分。与传统的常数加比例速率到达法（CPRL）相比，它可以有效抑制颤振，减少到达时间。ESMDO 是基于 CPRL 设计的。它可以估计由驱动系统的集中扰动产生的额外颤振并补偿控制器的输出。基于拟议的新 SMC 和 ESMDO，抗干扰滑模速度控制器旨在提高 SPMSM 驱动系统的性能。所提出方法的性能已通过实验验证，并在不同条件下与基于 CPRL 的 SMC 方法进行了比较。