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    • 62. 发明申请
    • Sensorless control method and apparatus for a motor drive system
    • 用于电机驱动系统的无传感器控制方法和装置
    • US20050007044A1
    • 2005-01-13
    • US10846274
    • 2004-05-14
    • Ming QiuHassan KojoriBin Wu
    • Ming QiuHassan KojoriBin Wu
    • G05B13/04H02P21/13H02P5/06
    • H02P21/13G05B13/048
    • A method and apparatus provide a state observer control system 600 for a motor 106 that uses an extended Kalman filter 330 to predict initial rotor position and afterwards accurately predict rotor position and/or speed under variable types of loading conditions. A control system model 300 is generated that allows variable setting of an initial rotor position to generate estimated rotor position and speed as outputs. The control system model 300 includes an EKF (extended Kalman filter) estimator 330, speed controller 322, a current controller 324, and a variable load component 310. During operation, EKF estimator 330 estimates rotor speed 327 and position 333 based on reference voltages 402, 404 and currents 1325 generated by speed and current controllers 322, 324 and input from frame transformers 326, 328. Additionally, the reference currents and voltages 402, 404, 1325 are frame-transformed to be used as feedback signals 418, 346 in the system 600 and as drive signals to control power to be applied to a motor load 602.
    • 一种方法和装置为电动机106提供状态观测器控制系统600,该电动机106使用扩展卡尔曼滤波器330来预测初始转子位置,然后在可变类型的负载条件下准确地预测转子位置和/或速度。 产生控制系统模型300,其允许初始转子位置的可变设置以产生估计的转子位置和速度作为输出。 控制系统模型300包括EKF(扩展卡尔曼滤波器)估计器330,速度控制器322,电流控制器324和可变负载组件310.在操作期间,EKF估计器330基于参考电压402估计转子速度327和位置333 ,404和由速度和电流控制器322,324生成的电流1325以及从帧变压器326,328输入的电流133.另外,参考电流和电压402,404,1325被帧变换以被用作反馈信号418,346。 系统600和作为驱动信号以控制施加到电动机负载602的功率。