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公开(公告)号：US07508147B2
公开(公告)日：2009-03-24
申请号：US11419064
申请日：2006-05-18
申请人： Mukul Rastogi , Richard H. Osman , Yusuke Fukuta
发明人： Mukul Rastogi , Richard H. Osman , Yusuke Fukuta
IPC分类号： H02P3/14
CPC分类号： H02M7/49 , H02J3/1892 , H02M1/32 , H02M5/458 , H02P27/08
摘要： An electrical device includes a plurality of single-phase power cells electrically connected to receive power from a source and deliver power to a load. The single-phase power cells include a first rank of regenerative power cells and a second rank of non-regenerative power cells. Each non-regenerative power cell may include an inverter bridge, a capacitor set electrically connected across terminals of the inverter bridge, and a three-phase bridge rectifier electrically connected across the terminals. The non-regenerative power cells may provide reactive power when the plurality of cells are used for braking of a motor.
摘要翻译： 电气设备包括电连接以从源接收功率并将功率传递给负载的多个单相功率单元。 单相功率单元包括再生功率单元的第一等级和非再生功率单元的第二等级。 每个非再生功率单元可以包括逆变器桥，电连接在逆变桥的端子上的电容器，以及跨越端子电连接的三相桥式整流器。 当多个电池用于制动电动机时，非再生电力单元可以提供无功功率。
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公开(公告)号：US07327111B2
公开(公告)日：2008-02-05
申请号：US11503327
申请日：2006-08-11
IPC分类号： H02P7/00
摘要： A method for controlling at least two variable frequency drives connected in parallel. The method comprises, for each variable frequency drive, communicating a magnetizing current component value to a master controller, and receiving a speed demand, a flux demand, and an average magnetizing current component value from the master controller. The method also comprises determining a motor speed and a motor flux based on measurements of a stator voltage and current of a motor coupled to the variable frequency drive, determining a speed reference based on a torque current component value, and determining a flux reference based on the magnetizing current component value and the average magnetizing current component value. The method further comprises adjusting a torque current component based on the speed reference and/or adjusting a magnetizing current component based on the flux reference.
摘要翻译： 一种用于控制并联连接的至少两个变频驱动器的方法。 该方法包括：对于每个可变频率驱动器，将磁化电流分量值传送到主控制器，以及从主控制器接收速度需求，磁通量需求和平均磁化电流分量值。 该方法还包括基于耦合到可变频率驱动器的电动机的定子电压和电流的测量来确定电动机速度和电动机通量，基于转矩电流分量值确定速度参考，以及基于 磁化电流分量值和平均磁化电流分量值。 该方法还包括基于速度参考调整转矩电流分量和/或基于通量参考调整磁化电流分量。
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公开(公告)号：US20060274560A1
公开(公告)日：2006-12-07
申请号：US11419064
申请日：2006-05-18
申请人： Mukul Rastogi , Richard Osman , Yusuke Fukuta
发明人： Mukul Rastogi , Richard Osman , Yusuke Fukuta
IPC分类号： H02M7/537
CPC分类号： H02M7/49 , H02J3/1892 , H02M1/32 , H02M5/458 , H02P27/08
摘要： An electrical device includes a plurality of single-phase power cells electrically connected to receive power from a source and deliver power to a load. The single-phase power cells include a first rank of regenerative power cells and a second rank of non-regenerative power cells. Each non-regenerative power cell may include an inverter bridge, a capacitor set electrically connected across terminals of the inverter bridge, and a three-phase bridge rectifier electrically connected across the terminals. The non-regenerative power cells may provide reactive power when the plurality of cells are used for braking of a motor.
摘要翻译： 电气设备包括电连接以从源接收功率并将功率传递给负载的多个单相功率单元。 单相功率单元包括再生功率单元的第一等级和非再生功率单元的第二等级。 每个非再生功率单元可以包括逆变器桥，电连接在逆变桥的端子上的电容器，以及跨越端子电连接的三相桥式整流器。 当多个电池用于制动电动机时，非再生电力单元可以提供无功功率。
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公开(公告)号：US20070035263A1
公开(公告)日：2007-02-15
申请号：US11503327
申请日：2006-08-11
IPC分类号： H02P7/00
摘要： A method for controlling at least two variable frequency drives connected in parallel. The method comprises, for each variable frequency drive, communicating a magnetizing current component value to a master controller, and receiving a speed demand, a flux demand, and an average magnetizing current component value from the master controller. The method also comprises determining a motor speed and a motor flux based on measurements of a stator voltage and current of a motor coupled to the variable frequency drive, determining a speed reference based on a torque current component value, and determining a flux reference based on the magnetizing current component value and the average magnetizing current component value. The method further comprises adjusting a torque current component based on the speed reference and/or adjusting a magnetizing current component based on the flux reference.
摘要翻译： 一种用于控制并联连接的至少两个变频驱动器的方法。 该方法包括：对于每个可变频率驱动器，将磁化电流分量值传送到主控制器，以及从主控制器接收速度需求，磁通量需求和平均磁化电流分量值。 该方法还包括基于耦合到可变频率驱动器的电动机的定子电压和电流的测量来确定电动机速度和电动机通量，基于转矩电流分量值确定速度参考，以及基于 磁化电流分量值和平均磁化电流分量值。 该方法还包括基于速度参考调整转矩电流分量和/或基于通量参考调整磁化电流分量。
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