关键词: 永磁同步电机, 电流采样, 电阻, 电感

Abstract: Vector control is a kind of control strategy based on motor mathematical model, and its control performance depends on the setting of motor parameters. The conventional method to obtain motor parameters is to measure them by instrument or computer. A simple method is proposed, which simplifies the motor model into a first-order linear system, and realizes the identification of motor parameters by using the drive circuit and current sampling circuit. The experimental results show that the method has the advantages of low computational complexity, simple operation, and is suitable for implementation, which improves the adaptability of the controller to the motor.

Key words: PMSM, currentsampling, resistance, inductance