发明公开
EP2638630A2 VERFAHREN UND SCHALTUNGSANORDNUNG ZUR SENSORLOSEN MOTORLASTERFASSUNG UND ZUR LASTWERTABHÄNGIGEN MOTORSTROMREGELUNG BEI EINEM SCHRITTMOTOR
有权
方法与电路传感器地段MOT载荷检测和最后成交价发动机功率控制在步进电机
- 专利标题： VERFAHREN UND SCHALTUNGSANORDNUNG ZUR SENSORLOSEN MOTORLASTERFASSUNG UND ZUR LASTWERTABHÄNGIGEN MOTORSTROMREGELUNG BEI EINEM SCHRITTMOTOR
- 专利标题（英）： Method and circuit arrangement for detecting motor load without sensors and for controlling motor current according to load for a stepper motor
- 专利标题（中）： 方法与电路传感器地段MOT载荷检测和最后成交价发动机功率控制在步进电机
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申请号： EP11817310.3申请日： 2011-11-09
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公开(公告)号： EP2638630A2公开(公告)日： 2013-09-18
- 发明人: LARSSON, Lars , DWERSTEG, Bernhard
- 申请人： Trinamic Motion Control GmbH & Co. KG
- 申请人地址： Waterloohain 5 22769 Hamburg DE
- 专利权人： Trinamic Motion Control GmbH & Co. KG
- 当前专利权人： Trinamic Motion Control GmbH & Co. KG
- 当前专利权人地址： Waterloohain 5 22769 Hamburg DE
- 代理机构： Heun, Thomas
- 优先权： DE102011000569 20110208; DE102010060466 20101109
- 国际公布： WO2012062310 20120518
- 主分类号： H02P6/00
- IPC分类号： H02P6/00 ; H02P8/12
摘要：
The invention relates to a method and a circuit arrangement, by means of which a mechanical load applied to the motor shaft or a load angle of the motor can be detected without sensors in a stepper motor. This is achieved substantially based on the fact that the load or the load angle creates a mutually induced voltage (back EMF) in the motor coils and the load or the load angle is detected by determining the phase shift of the motor voltage at at least one of the motor coil connections (U, V, W) relative to the coil current at said motor coil connection, said phase shift being caused by the mutually induced voltage. The invention further relates to a method and a circuit arrangement, by means of which the motor current of a stepper motor can be controlled according to load angle in such a way that the current consumption of the motor is relatively low.
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