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1. 发明授权

US09297862B2 Systems and apparatus for fault detection in DC power sources using AC residual current detection 有权
标题翻译：使用交流剩余电流检测的直流电源故障检测系统和装置
公开(公告)号：US09297862B2
公开(公告)日：2016-03-29
申请号：US13193026
申请日：2011-07-28
申请人： George W. Oughton, Jr. , Yu Liu , Debrup Das , Pasi S. Taimela , Bobby L. Compton
发明人： George W. Oughton, Jr. , Yu Liu , Debrup Das , Pasi S. Taimela , Bobby L. Compton
IPC分类号： G01R31/40 , G01R31/02
CPC分类号： G01R31/40 , G01R31/025 , H02S50/00
摘要： A fault in a DC power source, such as a battery string or a string of photovoltaic cells, is identified by detecting a change in an AC component of a residual current of the DC power source. In some embodiments, the DC power source is coupled to at least one DC bus and the methods further include generating an AC voltage on the at least one DC bus. For example, the DC power source may be coupled to a modulated DC bus of an uninterruptible power supply (UPS) system comprising an inverter having an input coupled to the DC bus. The inverter may be configured to generate an AC output voltage and the AC component has a frequency that is a harmonic of a fundamental frequency of the AC output voltage, such as a third harmonic of the fundamental frequency of the AC output voltage.
摘要翻译：通过检测直流电源的剩余电流的交流分量的变化来识别DC电源中的故障，例如电池串或一串光伏电池。在一些实施例中，DC电源耦合到至少一个DC总线，并且所述方法还包括在所述至少一个DC总线上产生AC电压。例如，DC电源可以耦合到不间断电源（UPS）系统的调制DC总线，其包括具有耦合到DC总线的输入的反相器。逆变器可以被配置为产生AC输出电压，并且AC分量具有作为交流输出电压的基频的谐波的频率，例如AC输出电压的基频的三次谐波。

2. 发明申请

US20130027077A1 SYSTEMS AND APPARATUS FOR FAULT DETECTION IN DC POWER SOURCES USING AC RESIDUAL CURRENT DETECTION 有权
标题翻译：使用交流电流检测在直流电源中进行故障检测的系统和装置
公开(公告)号：US20130027077A1
公开(公告)日：2013-01-31
申请号：US13193026
申请日：2011-07-28
申请人： George W. Oughton, JR. , Yu Liu , Debrup Das , Pasi S. Taimela , Bobby L. Compton
发明人： George W. Oughton, JR. , Yu Liu , Debrup Das , Pasi S. Taimela , Bobby L. Compton
IPC分类号： G01R31/40
CPC分类号： G01R31/40 , G01R31/025 , H02S50/00
摘要： A fault in a DC power source, such as a battery string or a string of photovoltaic cells, is identified by detecting a change in an AC component of a residual current of the DC power source. In some embodiments, the DC power source is coupled to at least one DC bus and he methods further include generating an AC voltage on the at least one DC bus. For example, the DC power source may be coupled to a modulated DC bus of an uninterruptible power supply (UPS) system comprising an inverter having an input coupled to the DC bus. The inverter may be configured to generate an AC output voltage and the AC component has a frequency that is a harmonic of a fundamental frequency of the AC output voltage, such as a third harmonic of the fundamental frequency of the AC output voltage.
摘要翻译：通过检测直流电源的剩余电流的交流分量的变化来识别DC电源中的故障，例如电池串或一串光伏电池。在一些实施例中，DC电源耦合到至少一个DC总线，并且他的方法还包括在至少一个DC总线上产生AC电压。例如，DC电源可以耦合到不间断电源（UPS）系统的调制DC总线，其包括具有耦合到DC总线的输入的反相器。逆变器可以被配置为产生AC输出电压，并且AC分量具有作为交流输出电压的基频的谐波的频率，例如AC输出电压的基频的三次谐波。

3. 发明申请

US20120074786A1 UNINTERRUPTIBLE POWER SUPPLY SYSTEMS AND METHODS USING ISOLATED INTERFACE FOR VARIABLY AVAILABLE POWER SOURCE 审中-公开
标题翻译：不间断电源系统和使用隔离接口进行可变电源的方法
公开(公告)号：US20120074786A1
公开(公告)日：2012-03-29
申请号：US13297477
申请日：2011-11-16
申请人： Robert William Johnson, JR. , Yu Liu , Bobby L. Compton , Pasi S. Taimela , Robert C. Sebald
发明人： Robert William Johnson, JR. , Yu Liu , Bobby L. Compton , Pasi S. Taimela , Robert C. Sebald
IPC分类号： H02J9/00
CPC分类号： H02J9/061 , H02J3/382 , H02J3/383 , H02J3/386 , H02J7/007 , H02J9/062 , Y02B10/72 , Y02E10/563 , Y02E10/566 , Y02E10/763 , Y10T307/615 , Y10T307/625
摘要： An uninterruptible power supply (UPS) system includes a first port configured to be coupled to an AC power source and a second port configured to be coupled to a load. The system also includes a UPS circuit including a first converter circuit coupled to the first port, a second converter circuit coupled to the second port and a DC bus coupling the first converter circuit to the second converter circuit and configured to be coupled to an auxiliary power source and a third converter circuit coupled to the second port and configured to receive power from a variably available power source. A control circuit is configured to cooperatively control the UPS circuit and the third converter circuit.
摘要翻译：不间断电源（UPS）系统包括被配置为耦合到AC电源的第一端口和被配置为耦合到负载的第二端口。该系统还包括UPS电路，其包括耦合到第一端口的第一转换器电路，耦合到第二端口的第二转换器电路和将第一转换器电路耦合到第二转换器电路并被配置为耦合到辅助电力的DC总线源和第三转换器电路，其耦合到第二端口并且被配置为从可变地可用的电源接收电力。控制电路被配置为协调地控制UPS电路和第三转换器电路。

4. 发明授权

US07649758B2 Power supply apparatus, methods and computer program products using D-Q domain based synchronization techniques 有权
标题翻译：电源装置，方法和计算机程序产品采用基于D-Q域的同步技术
公开(公告)号：US07649758B2
公开(公告)日：2010-01-19
申请号：US11565119
申请日：2006-11-30
申请人： Pasi S. Taimela , Kevin L. Van Eyll , Kevin Lee
发明人： Pasi S. Taimela , Kevin L. Van Eyll , Kevin Lee
IPC分类号： H02M3/24 , H02M1/12
CPC分类号： H02J9/062 , Y10T307/615
摘要： A value of an AC reference waveform is obtained and converted to a d-q reference frame value. A phase estimate is generated responsive to the d-q reference frame value. An AC output of the power supply apparatus is controlled responsive to an output current of the power supply apparatus and the phase estimate. For example, an output current value may be obtained and converted to a d-q reference frame current value responsive to the phase estimate, and the AC output may be controlled responsive to the d-q reference frame current value.
摘要翻译：获得AC参考波形的值并将其转换为d-q参考帧值。响应于d-q参考帧值产生相位估计。响应于电源装置的输出电流和相位估计来控制供电装置的AC输出。例如，可以获得输出电流值，并且响应于相位估计而将其转换为d-q参考帧电流值，并且可以响应于d-q参考帧当前值来控制AC输出。

5. 发明申请

US20080130332A1 Power Supply Apparatus, Methods and Computer Program Products Using D-Q Domain Based Synchronization Techniques 有权
标题翻译：使用D-Q域的同步技术的电源装置，方法和计算机程序产品
公开(公告)号：US20080130332A1
公开(公告)日：2008-06-05
申请号：US11565119
申请日：2006-11-30
申请人： Pasi S. Taimela , Kevin L. Van Eyll , Kevin Lee
发明人： Pasi S. Taimela , Kevin L. Van Eyll , Kevin Lee
IPC分类号： H02M7/44 , H02J9/00
CPC分类号： H02J9/062 , Y10T307/615
摘要： A value of an AC reference waveform is obtained and converted to a d-q reference frame value. A phase estimate is generated responsive to the d-q reference frame value. An AC output of the power supply apparatus is controlled responsive to an output current of the power supply apparatus and the phase estimate. For example, an output current value may be obtained and converted to a d-q reference frame current value responsive to the phase estimate, and the AC output may be controlled responsive to the d-q reference frame current value.
摘要翻译：获得AC参考波形的值并将其转换为d-q参考帧值。响应于d-q参考帧值产生相位估计。响应于电源装置的输出电流和相位估计来控制供电装置的AC输出。例如，可以获得输出电流值，并且响应于相位估计而将其转换为d-q参考帧电流值，并且可以响应于d-q参考帧当前值来控制AC输出。

6. 发明授权

US06906933B2 Power supply apparatus and methods with power-factor correcting bypass mode 失效
标题翻译：具有功率因数校正旁路模式的电源装置和方法
公开(公告)号：US06906933B2
公开(公告)日：2005-06-14
申请号：US10286027
申请日：2002-11-01
申请人： Pasi S. Taimela
发明人： Pasi S. Taimela
IPC分类号： H02J3/32 , H02J9/06 , H02M1/00 , H02M1/42 , H02M5/458 , H02M5/40
CPC分类号： H02M1/4258 , H02J3/32 , H02J9/062 , H03F2200/351 , Y02B70/126
摘要： A power supply apparatus, such as an uninterruptible power supply, includes an AC input configured to be coupled to an AC power source and an AC output. The apparatus also includes an AC/DC converter circuit, e.g., a boost rectifier circuit, with an input coupled to the AC input. The apparatus further includes a DC/AC converter circuit, e.g., an inverter circuit, configured to be coupled between an output of the AC/DC converter circuit and the AC output. A bypass circuit is operative to establish a coupling between the AC input to the AC output in a first (e.g., bypassed) state and to interrupt the coupling in a second (e.g., “on line”) state. The AC/DC converter circuit is operative to control current at the AC input when the bypass circuit is in the first state. For example, the AC/DC converter circuit may be operative to control current at the AC input to correct a power factor at the AC input port when bypassed, such that the AC/DC converter circuit may act as a line conditioner in the bypassed state.
摘要翻译：诸如不间断电源的电源装置包括被配置为耦合到AC电源和AC输出的AC输入。该装置还包括具有耦合到AC输入的输入的AC / DC转换器电路，例如升压整流器电路。该装置还包括被配置为耦合在AC / DC转换器电路的输出和AC输出之间的DC / AC转换器电路，例如逆变器电路。旁路电路用于在第一（例如，旁路）状态下建立AC输出到AC输出之间的耦合，并以第二（例如“在线”）状态中断耦合。当旁路电路处于第一状态时，AC / DC转换器电路用于控制AC输入端的电流。例如，AC / DC转换器电路可操作以控制AC输入端的电流，以在旁路时校正AC输入端口处的功率因数，使得AC / DC转换器电路可以充当旁路状态的线路调节器。

7. 发明授权

US07239043B2 Power conversion apparatus and methods using an adaptive waveform reference 有权
标题翻译：电力转换装置和使用自适应波形参考的方法
公开(公告)号：US07239043B2
公开(公告)日：2007-07-03
申请号：US10854043
申请日：2004-05-26
申请人： Pasi S. Taimela , Kevin L. VanEyll
发明人： Pasi S. Taimela , Kevin L. VanEyll
IPC分类号： H02J7/00 , H02M3/335 , G05B13/02
CPC分类号： H02M1/4208 , H02J9/062 , H02M2001/0025 , H03F2200/351 , Y02B70/126 , Y10T307/625
摘要： A power conversion apparatus, such as a UPS, includes a first waveform reference signal generator circuit operative to generate a first waveform reference signal responsive to an AC bus, and a second waveform reference signal generator circuit operative to generate a second waveform reference signal, e.g., a more consistently sinusoidal signal produced by another source. The apparatus further includes a control circuit that selectively generates a third waveform reference signal from the first and second waveform reference signals, and a power converter circuit (e.g., a rectifier and/or inverter) coupled to the AC bus and operative to transfer power to and/or from the AC bus responsive to the third waveform reference signal. In particular, the control circuit may be operative to weightedly combine the first and second waveform reference signals to generate the third waveform reference signal. The control circuit may weightedly combine the first and second waveform reference signals responsive to an operating parameter of the power converter, such as a voltage, a current, a power factor, a source impedance, a voltage distortion and/or a harmonic input current.
摘要翻译：诸如UPS的电力转换装置包括：第一波形参考信号发生器电路，用于产生响应于AC总线的第一波形参考信号;以及第二波形参考信号发生器电路，用于产生第二波形参考信号，例如，由另一个源产生的更持久的正弦信号。该装置还包括控制电路，其选择性地从第一和第二波形参考信号产生第三波形参考信号，以及耦合到AC总线的功率转换器电路（例如，整流器和/或逆变器），并且用于将功率传递到和/或从AC总线响应于第三波形参考信号。具体地，控制电路可以用于加权地组合第一和第二波形参考信号以产生第三波形参考信号。响应于功率转换器的操作参数，例如电压，电流，功率因数，源阻抗，电压失真和/或谐波输入电流，控制电路可以对第一和第二波形参考信号进行加权组合。

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