【摘要】 针对永磁同步电机中滑模速度控制器的系统抖振问题以及传统MRAS观测器的鲁棒性和动态性能差的问题，提出了一种基于新型滑模控制器和超螺旋滑模MRAS观测器相结合的SPMSM转速估计策略。首先，在传统滑模速度控制中结合快速终端吸引子，构建新的滑模面，使设计的控制器不含切换项，有效削弱抖振。其次，在传统MRAS观测器的结构上引入超螺旋滑模算法替代PI自适应律，构建超螺旋滑模MRAS观测器，提高观测器的动态性能和鲁棒性。通过Matlab/Simulink平台搭建的模型进行仿真，验证所提估计策略具有良好的动态性能和鲁棒性。更多还原

【Abstract】 Aiming at the problems caused by the sliding mode speed controller and the traditional MRAS observer in the PMSM, such as system chattering, poor robustness and dynamic performance, a SPMSM speed estimation strategy based on new sliding mode controller and super-twisting sliding mode MRAS observer is proposed. Firstly, the fast terminal attractor is introduced into the traditional sliding mode speed control to construct a new sliding mode surface so that the designed controller does not contain a switching term, which effectively weakens the chattering. Secondly, the super-twisting sliding mode algorithm is introduced to replace the PI adaptive law on the structure of the traditional MRAS observer, and the super-twisting sliding mode MRAS observer is constructed to improve the dynamic performance and robustness of the observer. The model built by Matlab/Simulink platform is simulated, which verifies that the proposed estimation strategy has good dynamic performance and robustness.更多还原