摘要
为了提高定子磁链的观测精度,将闭环磁链观测器用于直接转矩控制系统中取代传统的纯积分器;在磁链闭环观测器的基础上,依据模型参考自适应理论(MRAS)构造出了速度自适应观测器。仿真和实验结果表明,该方案成功地实现对转速的辨识,证明了方法的可行性。
In order to improve the accuracy observation of stator flux, the closed-loop flux observer was used in the DTCs to replace the traditional pure integrator in this paper. On the basis of the closed-loop flux observer, the speed adaptive observer was constructed based on MRAS. Simulation and experimental results show that the closed-loop flux observer stator flux can improve the accuracy of observation, and that the speed adaptive observer can increase speed observed precision. The system, therefore, maintains a good performance at a relatively low speed. The program can be successfully achieved on the speed of identification, and using the speed identification algorithm can make direct torque control system obtain a good low-speed performance.
出处
《微特电机》
北大核心
2010年第5期63-66,共4页
Small & Special Electrical Machines
