电机实时在线热管理依赖于内部温度足够精确的指标,对于永磁同步伺服系统尤为重要,永磁同步伺服电机中的一个温度指标是定子绕组电阻。本文介绍了两种方法来检测绕组电阻,固定角度和固定幅值的注入,通过上述方法检测电阻从而得到绕组温度。这种方法能够用在负载情况下,并且不干扰驱动转矩和转速且精度具佳,适合现代高性能伺服电机控制系统使用。 Real-time on-line thermal management of the motor relies on sufficiently accurate internal temperature indicators, which are especially important for permanent magnet synchronous servo systems. One of the temperature targets in permanent magnet synchronous servo motors is the stator winding resistance. This article describes two methods to detect winding resistance, fixed angle, and fixed amplitude injection. The resistance is measured by the above method to obtain the winding temperature. This method can be used under load conditions, and does not interfere with the drive torque and speed with good accuracy, suitable for modern high-performance servo motor control system.