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Resolver motivated sensorless rotor position estimation of wound rotor synchronous motors with Kalman filter

机译：带卡尔曼滤波器的绕线转子同步电动机的旋转变压器驱动无传感器转子位置估计

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This paper presents a novel estimation approach to sensorless control of wound rotor synchronous motor drives. The proposed rotor position estimation strategy is motivated by principle function of a resolver and utilizes design similarity between the controlled motor and the resolver based rotor position sensor. The rotor circuit is fed by controlled three-phase bridge rectifier which produces an ac component of frequency of 300Hz in the rotor excitation (flux) current. This ac component of rotor excitation current can be understood like an injection signal. Its response on the stator is evaluated by simplified Kalman filter which estimates the rotor position. This paper describes physical principle and functionality of the proposed sensorless rotor position estimation technique and verifies the theoretical foundations by simulation and experimental results made on developed drive prototype of rated power of 10kW.
机译：本文提出了一种新颖的估算方法，用于绕线转子同步电动机驱动器的无传感器控制。所提出的转子位置估计策略是由旋转变压器的原理功能驱动的，并且利用了受控电机和基于旋转变压器的转子位置传感器之间的设计相似性。转子电路由受控的三相桥式整流器供电，该三相整流器在转子励磁（通量）电流中产生频率为300Hz的交流分量。转子励磁电流的这个交流分量可以理解为注入信号。它对定子的响应由简化的卡尔曼滤波器评估，该滤波器估算转子位置。本文描述了所提出的无传感器转子位置估计技术的物理原理和功能，并通过对额定功率为10kW的驱动原型开发的仿真和实验结果验证了理论基础。

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