【摘要】 利用电动机定子电压方程和电流方程得到电动机转速的模型参考自适应(MRAS)辨识算法,在此基础上建立了一个改进的变参数MRAS速度辨识数学模型,并在无速度传感器异步电动机矢量控制系统中对该速度辨识模型进行了研究,仿真结果验证了该变参数MRAS速度辨识模型具有满意的辨识精度和动态性能.更多还原

【Abstract】 According to the reduced order model of induction motor,a model reference adaptive speed identification algorithm was obtained from the equations of motor stator voltages and currents.An improved MRAS model was built with variable parameters.The detailed simulation researches were tested on the speed-sensorless vector control.The simulation results show that this improved MRAS speed identification model has satisfied identification precision and dynamic performance.更多还原