参数辨识精度对永磁同步电机的工作性能和控制方法有着重要的影响，目前大 多数参数辨识方法未能考虑温度对参数的影响，导致参数辨识精度低，控制性能差． 为此， 文中通过理论计算与样机实验，分析了温度变化对永磁同步电机参数的影响，并证明了温 度对参数辨识结果具有较大的影响． 在此基础上，建立了考虑温度影响的永磁同步电机参 数辨识模型，提出了一种同时考虑电阻和电感随温度变化的改进的参数辨识方法． 仿真实 验结果表明，文中提出的方法可以提高参数辨识的收敛速度和精度，减小辨识误差． 

The accuracy of parameter identification has important influence on the performance and control method of permanent magnet synchronous motor(PMSM). Most of the previous parameter identification methods such as least square method failed to consider the influence of temperature on parameters which lead to low parameter identification accuracy and poor control performance. In this paper, the influence of temperature on PMSM parameters is analyzed by calculation and simulation. It is proved that the temperature has great influence on the parameter identification results. Thus, a parameter identification model of PMSM considering temperature was established, and an improved parameter identification algorithm considering both resistance and inductance with temperature was proposed. Finally, simulation experiments show that this method can improve the speed and accuracy of parameter identification, and reduce the identification error.