船电技术2024，Vol.44Issue(7)：1-5,16,6.
基于改进型滑模的永磁同步电机控制
Control of permanent magnet synchronous motor based on improved sliding mode
摘要
Abstract
To address the issues of vibration during the determination of rotor position by traditional sliding mode observers in permanent magnet synchronous motors and the weak anti-interference capability of the control system, this paper proposes a new control strategy. The strategy takes stator current and back electromotive force as control variables and introduces a robust high-order sliding mode variable structure observer with good tracking performance to replace the traditional sliding mode observer, thereby improving anti-interference capability of the system. Simultaneously, the strategy employs a saturation function as a switching function to mitigate the vibration phenomenon. Furthermore, an improved phase-locked loop is used instead of an arctangent function for solving rotor position and speed to avoid the introduction of noise signals during differential solution and to reduce phase delay issues caused by filters. For speed loop control, this paper adopts a hybrid terminal nonsingular sliding mode controller instead of the traditional PI controller to enhance the system's dynamic performance. Simulation results validate the correctness and effectiveness of the proposed strategy.关键词
表贴式永磁同步电机/高阶滑模观测器/混合非奇异终端滑模控制Key words
surface-mounted permanent magnet synchronous motor/high-order sliding mode observer/hybrid nonsingular terminal sliding mode分类
信息技术与安全科学引用本文复制引用
陈俊龙,谭家万,严浪涛..基于改进型滑模的永磁同步电机控制[J].船电技术,2024,44(7):1-5,16,6.基金项目
重庆市自然科学基金面上基金(项目编号:CSTB2022NSCQ-MSX1543) （项目编号:CSTB2022NSCQ-MSX1543）
