Method and device for acquiring running state of motor rotor, equipment and medium

The invention discloses a motor rotor operation state acquisition method and device, equipment and a medium. The method comprises the following steps: acquiring a first measurement signal at a first moment output by a rotary transformer; wherein the measurement signal is obtained by measuring a motor rotor by a rotary transformer; determining a first Kalman gain at the first moment, and determining a predicted value of an operation state of the motor rotor at the first moment; and outputting an observation result of the operation state of the motor rotor at the first moment based on the first Kalman gain, the predicted value of the operation state of the motor rotor at the first moment and the first measurement signal. 本申请公开了一种电机转子运行状态获取方法、装置、设备及介质，包括：获取旋转变压器输出的第一时刻的第一测量信号；其中，测量信号由旋转变压器对电机转子进行测量得到；确定所述第一时刻的第一卡尔曼增益，以及确定所述电机转子在所述第一时刻的运行状态的预测值；基于所述第一卡尔曼增益、所述电机转子在所述第一时刻的运行状态的预测值和所述第一测量信号，输出所述电机转子在所述第一时刻的运行状态的观测结果。