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公开(公告)号：US07881081B1
公开(公告)日：2011-02-01
申请号：US12761893
申请日：2010-04-16
IPC分类号： H02M1/12
CPC分类号： H02M1/44 , H02M7/5395 , H02M2001/123 , H02M2007/53876
摘要： Control systems, methods and power conversion systems are presented for controlling common mode currents in power converters, in which feedback signals used in pulse width modulated inverter switching control are selectively adjusted to ensure minimum differences between the resulting common mode compensated feedback signals according to a common mode dwell time in each pulse width modulation period, with the common mode dwell time being adjusted according to modulation index.
摘要翻译： 提出了用于控制功率转换器中的共模电流的控制系统，方法和功率转换系统，其中选择性地调节在脉冲宽度调制的逆变器切换控制中使用的反馈信号，以确保根据共同的所产生的共模补偿反馈信号之间的最小差异 模式驻留时间在每个脉冲宽度调制周期内，共模停留时间根据调制指数进行调整。
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2.发明授权Discontinuous pulse width drive modulation method and apparatus for reduction of common-mode voltage in power conversion systems 有权用于降低功率转换系统中共模电压的不连续脉宽驱动调制方法和装置公开(公告)号：US08503207B2
公开(公告)日：2013-08-06
申请号：US12893838
申请日：2010-09-29
IPC分类号： H02M7/797
CPC分类号： H02M5/4585 , H02M1/12 , H02M2001/0025 , H02M2001/123 , H02M2001/385
摘要： Control systems, methods and power conversion systems are presented for reducing common mode voltages in AC motor loads driven by inverter PWM control using switching sequences with only active vectors where a first vector of each switching sequence differs by one phase switching state from a last vector of a switching sequence of an adjacent sector, along with enhanced deadtime compensation and reflected wave reduction techniques in providing pulse width modulated switching signals to a switching inverter.
摘要翻译： 提出了控制系统，方法和功率转换系统，用于降低由逆变器PWM控制驱动的交流电动机负载中的共模电压，其中仅使用具有每个开关序列的第一向量与一个相位切换状态与最后一个矢量 相邻扇区的切换序列，以及增强的死区时间补偿以及向切换逆变器提供脉宽调制切换信号的反射波减少技术。
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3.发明申请PULSE WIDTH MODULATION CONTROL METHOD AND SYSTEM FOR MITIGATING REFLECTED WAVE EFFECTS IN OVER-MODULATION REGION 有权脉冲宽度调制控制方法和系统，用于减轻过调制区域的反射波效应公开(公告)号：US20120140532A1
公开(公告)日：2012-06-07
申请号：US12957672
申请日：2010-12-01
IPC分类号： H02M5/44
CPC分类号： H02M7/53875
摘要： Power conversion systems and methods are provided for operating a multi-phase inverter to drive a load while mitigating reflected waves, in which one or more PWM modulating signals are selectively adjusted if at least one of the phase signals or values is transitioning into or out of an over-modulation range outside a pulse width modulation carrier waveform range.
摘要翻译： 提供了功率转换系统和方法，用于操作多相逆变器来驱动负载，同时减轻反射波，其中如果相位信号或值中的至少一个正在转换或退出，则选择性地调整一个或多个PWM调制信号 脉宽调制载波波形范围外的过调制范围。
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公开(公告)号：US20120075892A1
公开(公告)日：2012-03-29
申请号：US12893838
申请日：2010-09-29
CPC分类号： H02M5/4585 , H02M1/12 , H02M2001/0025 , H02M2001/123 , H02M2001/385
摘要： Control systems, methods and power conversion systems are presented for reducing common mode voltages in AC motor loads driven by inverter PWM control using switching sequences with only active vectors where a first vector of each switching sequence differs by one phase switching state from a last vector of a switching sequence of an adjacent sector, along with enhanced deadtime compensation and reflected wave reduction techniques in providing pulse width modulated switching signals to a switching inverter.
摘要翻译： 提出了控制系统，方法和功率转换系统，用于降低由逆变器PWM控制驱动的交流电动机负载中的共模电压，其中仅使用具有每个开关序列的第一向量与一个相位切换状态与最后一个矢量 相邻扇区的切换序列，以及增强的死区时间补偿以及向切换逆变器提供脉宽调制切换信号的反射波减少技术。
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5.发明授权Pulse width modulation control method and system for mitigating reflected wave effects in over-modulation region 有权用于减轻过调制区域反射波效应的脉宽调制控制方法和系统公开(公告)号：US08488345B2
公开(公告)日：2013-07-16
申请号：US12957672
申请日：2010-12-01
IPC分类号： H02M5/45
CPC分类号： H02M7/53875
摘要： Power conversion systems and methods are provided for operating a multi-phase inverter to drive a load while mitigating reflected waves, in which one or more PWM modulating signals are selectively adjusted if at least one of the phase signals or values is transitioning into or out of an over-modulation range outside a pulse width modulation carrier waveform range.
摘要翻译： 提供了功率转换系统和方法，用于操作多相逆变器来驱动负载，同时减轻反射波，其中如果相位信号或值中的至少一个正在转换或退出，则选择性地调整一个或多个PWM调制信号 脉宽调制载波波形范围外的过调制范围。
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公开(公告)号：US08456807B2
公开(公告)日：2013-06-04
申请号：US12838091
申请日：2010-07-16
IPC分类号： H02B1/20
CPC分类号： H01F27/04 , H01F3/04 , H01F17/06 , H01F27/266 , H01F41/0213 , H01F2017/0093 , H01F2017/065
摘要： A magnetic device mounting system is disclosed, such as for use in electrical cabinets for distribution of power via power bus bars. The system includes a common mode magnetic device that has an opening configured to receive extensions of a set of parallel bus bars. A non-conductive support is provided, along with a conductive extension, the non-conductive support and extension being configured to coordinate to engage the opening and to support the common mode magnetic device via attachment to the bus bar.
摘要翻译： 公开了一种磁性装置安装系统，例如用于通过电力母线分配电力的电气柜中。 该系统包括共模磁性装置，其具有构造成接收一组并行汇流条的延伸部的开口。 提供非导电支撑件以及导电延伸部，非导电支撑件和延伸部被配置成协调以接合开口并且通过附接到汇流条来支撑共模磁性装置。
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公开(公告)号：US20120235614A1
公开(公告)日：2012-09-20
申请号：US13482669
申请日：2012-05-29
IPC分类号： H02P6/14
CPC分类号： H02M5/4585
摘要： Multiple inverter motor drives are interconnected in parallel to provide a common output to a motor. Common control circuitry is coupled to all parallel drives via optical cables and provides signals to power layer circuitry of each inverter for generation, at the power layer, of timing for gate drive signals for the respective inverter power electronic switches. The resulting timing exhibits a high degree of synchronicity such that very little imbalance occurs in the outputs of the paralleled drives, resulting in very low circulating currents.
摘要翻译： 多个变频器电机驱动器并联互连，为电机提供公共输出。 公共控制电路通过光缆耦合到所有并行驱动器，并且向每个逆变器的功率层电路提供信号，以在功率层产生用于各个逆变器功率电子开关的栅极驱动信号的定时。 所得到的定时表现出高度的同步性，使得在并联驱动器的输出中发生非常小的不平衡，导致非常低的循环电流。
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公开(公告)号：US07933108B2
公开(公告)日：2011-04-26
申请号：US11959046
申请日：2007-12-18
申请人： Rangarajan M. Tallam
发明人： Rangarajan M. Tallam
IPC分类号： H02H1/00
CPC分类号： H02H9/06 , H02H7/0833 , H02H9/042
摘要： A motor drive employs a combination of gas discharge tubes and metal oxide varistors to create precisely tailored surge protection that has a low leakage current minimizing the triggering of ground fault detection circuitry when multiple motor drives are attached to a single line source.
摘要翻译： 电机驱动器采用气体放电管和金属氧化物变阻器的组合来创建精确定制的浪涌保护，其具有低泄漏电流，当多个电动机驱动器附接到单个线路源时，最小化接地故障检测电路的触发。
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公开(公告)号：US08188694B2
公开(公告)日：2012-05-29
申请号：US12837931
申请日：2010-07-16
IPC分类号： H02P27/00
CPC分类号： H02M5/4585
摘要： Multiple inverter motor drives are interconnected in parallel to provide a common output to a motor. Common control circuitry is coupled to all parallel drives via optical cables and provides signals to power layer circuitry of each inverter for generation, at the power layer, of timing for gate drive signals for the respective inverter power electronic switches. The resulting timing exhibits a high degree of synchronicity such that very little imbalance occurs in the outputs of the paralleled drives, resulting in very low circulating currents.
摘要翻译： 多个变频器电机驱动器并联互连，为电机提供公共输出。 公共控制电路通过光缆耦合到所有并行驱动器，并且向每个逆变器的功率层电路提供信号，以在功率层产生用于各个逆变器功率电子开关的栅极驱动信号的定时。 所得到的定时表现出高度的同步性，使得在并联驱动器的输出中发生非常小的不平衡，导致非常低的循环电流。
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公开(公告)号：US06611771B1
公开(公告)日：2003-08-26
申请号：US09678982
申请日：2000-10-04
IPC分类号： G01R3134
CPC分类号： H02H1/0092 , G01R31/346 , H02H7/09
摘要： A stator turn fault detection system and method capable of real-time detection of a stator turn fault in an electric motor is provided. The stator turn fault detector includes a feed forward neural network that when trained, using fundamental frequency sequence components of the voltage and current supplying the electric motor, will estimate a fundamental frequency sequence component of current indicative of a stator turn fault. A method for detecting a stator turn fault in an electric motor as well as a method for training a feed forward neural network for use with the stator turn fault detector is disclosed.
摘要翻译： 提供了一种能够实时检测电动机中的定子匝故障的定子匝故障检测系统和方法。 定子匝故障检测器包括前馈神经网络，当训练时，使用提供电动机的电压和电流的基频分量，将估计指示定子匝故障的电流的基频分量。 公开了一种用于检测电动机中的定子匝故障的方法以及用于训练与定子匝故障检测器一起使用的前馈神经网络的方法。
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