发明授权
- 专利标题: Sensorless control systems and methods for permanent magnet rotating machines
- 专利标题(中): 永磁旋转机的无传感器控制系统和方法
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申请号: US11293744申请日: 2005-12-02
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公开(公告)号: US07342379B2公开(公告)日: 2008-03-11
- 发明人: Joseph G. Marcinkiewicz , Prakash B. Shahi , Michael I. Henderson
- 申请人: Joseph G. Marcinkiewicz , Prakash B. Shahi , Michael I. Henderson
- 申请人地址: US MO St. Louis
- 专利权人: Emerson Electric Co.
- 当前专利权人: Emerson Electric Co.
- 当前专利权人地址: US MO St. Louis
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 主分类号: H02P23/00
- IPC分类号: H02P23/00
摘要:
Systems and methods for controlling a rotating electromagnetic machine. The rotating machine, such as a permanent magnet motor or hybrid switched reluctance motor, includes a stator having a plurality of phase windings and a rotor that rotates relative to the stator. A drive is connected to the phase windings for energizing the windings. A controller outputs a control signal to the drive in response to an input demand such as a demanded speed or torque. Control methods (which can be implemented separately or in combination) include varying the gain of an estimator as a function of a demanded or estimated speed to position control system poles at desired locations, decoupling control system currents to achieve a constant torque with motor speed, compensating flux estimates of the estimator for saturation operation of the stator, estimating rotor position using averages of sample values of energization feedback, and calculating a trim adjusted speed error from a plurality of speed estimates.
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