中文摘要：

基于模型参考自适应（MRAS）的转速估计原理,提出了一种永磁同步电动机（PMSM）的无速度传感器控制方法,该方法以PMSM本身作为参考模型,将含有待估计参数的模型作为可调模型。根据两个模型状态变量的不同,通过一定的自适应调节机构,得到转子速度的估计值。然后利用端口受控哈密顿（PCH）系统方法,建立PMSM的PCH模型,根据最大转矩/电流（MTPA）控制原理,设计了隐极式PMSM的无传感器速度控制器。最后通过Matlab/Simulink建立仿真模型,仿真结果表明,该控制系统具有很好的转速跟踪和速度估计的性能。

英文摘要：

Based on the speed estimation theory of model reference adaptive system（MRAS）,a speed sensorless method of permanent magnet synchronous motors（PMSMs） was proposed.In this method,the PMSM was taken as the referential model,and the model including the estimated parameter was taken as the adjustable model.According to the difference of the state variables in the two models,the estimated rotor speed was obtained through a certain adaptive mechanism.Then,the PCH model of PMSM was built using the method of port-controlled Hamiltonian（PCH） system,and the speed controller of the non-salient pole PMSM without speed sensor was designed according to maximum torque per ampere（MTPA） control rule.In the end,the simulation model was established through Matlab/Simulink.Simulation results show the controlled system has a good performance of speed tracking and speed estimation.