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21. 发明授权

US6163472A Elevator DC motor drive with unity power factor, including regeneration 有权
标题翻译：电梯直流电机驱动具有统一的功率因数，包括再生
公开(公告)号：US6163472A
公开(公告)日：2000-12-19
申请号：US310600
申请日：1999-05-12
申请人： Roy S. Colby
发明人： Roy S. Colby
IPC分类号： H02M1/00 , H02M1/42 , H02M7/797 , H02M7/217
CPC分类号： H02M1/4216 , H02M7/797 , Y02B70/126
摘要： Power of three-phase AC mains is directly converted to DC power by a DC matrix converter employing insulated gate bipolar power transistors to directly connect the AC mains to an elevator DC motor for periods of time which are short compared with the period of the AC voltage, so as to continuously synthesize the desired AC voltage to the elevator motor. Filters are provided at the input and output of the DC matrix converters. Separate DC matrix converters may supply both the armature current and the field current to an elevator motor. Signals for selectively gating the power transistors are provided by converter control logic in response to a conventional phased locked loop, an elevator motion controller, and position speed and current control logic.
摘要翻译：三相交流电源的功率通过采用绝缘栅极双极型功率晶体管的直流矩阵转换器直接转换为直流电，将交流电源直接连接到电梯直流电动机，与交流电压相比，时间短，以便连续地合成到电梯电机的期望的交流电压。在DC矩阵转换器的输入和输出端提供滤波器。单独的DC矩阵转换器可以向电梯电机提供电枢电流和励磁电流。用于选择性地选通功率晶体管的信号由转换器控制逻辑提供，以响应常规的相位锁定环路，电梯运动控制器以及位置速度和电流控制逻辑。

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