【摘要】 为了提高定子磁链的观测精度,本文将Luenberger观测器用于直接转矩控制系统中以观测磁链;在此基础上,依据Lyapunov理论构造了速度自适应观测器。仿真和实验结果表明:Luenberger观测器提高定子磁链的观测精度,速度自适应观测器可以提高速度的观测精度,从而改善系统在较低转速下的动态性能。更多还原

【Abstract】 In order to improve the accuracy observation of stator flux,the luenberger observer was used in the direct control torque system to observe the stator flux in this paper.On the basis of the closed-loop flux observer,the speed adaptive observer is constructed based on the Lyapunov theory.Simulation and experimental results show that the Luenberger observer can improve the observed accuracy of the stator flux,and the speed adaptive observer can increase the observed precision of speed.So the system maintains a good performance at a relatively low speed.更多还原