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公开(公告)号:US08104584B2
公开(公告)日:2012-01-31
申请号:US12096181
申请日:2005-12-20
申请人: Edward Piedra , Ismail Agiman , Daryl Marvin
发明人: Edward Piedra , Ismail Agiman , Daryl Marvin
CPC分类号: B66B1/30
摘要: An elevator drive assembly (30) includes a voltage regulator (40) that selectively introduces current under certain conditions. In one example, the voltage regulator (40) introduces a negative flux current to an electric motor (32) when the motor (32) is operating under conditions corresponding to constant speed movement of an elevator car (22). In one example, the added negative flux current effectively reduces the back-EMF voltage of the motor (32) during the constant velocity portion of an elevator run. A disclosed example includes controlling the added current to maintain control over a motor torque constant, which becomes a function of the added current.
摘要翻译: 电梯驱动组件(30)包括在某些条件下选择性地引入电流的电压调节器(40)。 在一个示例中,当电动机(32)在对应于电梯轿厢(22)的恒定速度运动的条件下操作时,电压调节器(40)将负的磁通电流引入电动机(32)。 在一个示例中,在电梯运行的恒定速度部分期间,增加的负磁通电流有效地降低了电动机(32)的反电动势电压。 所公开的示例包括控制附加的电流以维持对电动机转矩常数的控制,电动机转矩常数成为附加电流的函数。
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公开(公告)号:US20080277209A1
公开(公告)日:2008-11-13
申请号:US12096181
申请日:2005-12-20
申请人: Edward Piedra , Ismail Agiman , Daryl Marvin
发明人: Edward Piedra , Ismail Agiman , Daryl Marvin
IPC分类号: B66B1/28
CPC分类号: B66B1/30
摘要: An elevator drive assembly (30) includes a voltage regulator (40) that selectively introduces current under certain conditions. In one example, the voltage regulator (40) introduces a negative flux current to an electric motor (32) when the motor (32) is operating under conditions corresponding to constant speed movement of an elevator car (22). In one example, the added negative flux current effectively reduces the back-EMF voltage of the motor (32) during the constant velocity portion of an elevator run. A disclosed example includes controlling the added current to maintain control over a motor torque constant, which becomes a function of the added current.
摘要翻译: 电梯驱动组件(30)包括在某些条件下选择性地引入电流的电压调节器(40)。 在一个示例中,当电动机(32)在对应于电梯轿厢(22)的恒定速度运动的条件下操作时,电压调节器(40)将负的磁通电流引入电动机(32)。 在一个示例中,在电梯运行的恒定速度部分期间,增加的负磁通电流有效地降低了电动机(32)的反电动势电压。 所公开的示例包括控制附加的电流以维持对电动机转矩常数的控制,电动机转矩常数成为附加电流的函数。
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