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中文摘要：
针对永磁同步电动机（PMSM）转速矢量控制系统，提出一种将高阶滑模和非奇异终端滑模相结合的控制方法，在保证系统全局一致稳定情况下，消除滑模控制的抖振现象，实现快速、准确的转速跟踪控制。采用转速／电流双闭环控制结构，针对转速环，提出一种自适应负载转矩估计方法，解决了未知负裁扰动问题；针对电流环，提出一种指数趋近律，提高了电流环的响应速度。仿真结果表明，与传统的PI控制方法相比，所提控制方法鲁棒性强，响应速度快，转速跟踪效果较好。
英文摘要：
Combining with high-order sliding mode and nonsingular terminal sliding mode, a control method was proposed for speed vector control system of permanent magnet synchronous motor （PMSM）. The proposed method could guarantee global stability of the system, eliminate chattering phenomena and realize fast and accurate speed tracking control. Speed/current double closed-loop control structure was adopted. For the speed loop, an adaptive load torque estimation method was proposed to solve the problem of unknown load disturbance. For the current loop, an exponential control law was proposed to improve response speed of current controller. Simulation results show that the proposed method is superior to conventional PI control method for its strong robustness, quick response, and the PMSM control system achieves excellent speed tracking performance.
同期刊论文项目
同项目期刊论文
Hybrid terminal sliding mode observer design method for a permanent magnet synchronous motor control
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