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公开(公告)号：US20120217809A1
公开(公告)日：2012-08-30
申请号：US13498009
申请日：2009-09-25
IPC分类号： H02J9/00
CPC分类号： H02J9/062 , Y10T307/615
摘要： In this uninterruptible power supply apparatus, even after electric power supply to a load stops due to prolonged power failure time, the operation of an inverter is continued, a DC power supply voltage is generated based on an output of the inverter, and a control circuit is driven by the DC power supply voltage. Therefore, when electric power supply from a commercial AC power supply is resumed during the stop of electric power supply to the load, electric power supply to the load is automatically resumed by the control circuit.
摘要翻译： 在该不间断电源装置中，即使由于延迟电源故障时间而对负载供电停止，逆变器的动作持续，基于逆变器的输出产生直流电源电压，控制电路 由直流电源电压驱动。 因此，在停止向负载供电的情况下，从商用交流电源的电力供给恢复时，通过控制电路自动恢复对负载的供电。
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公开(公告)号：US20110127837A1
公开(公告)日：2011-06-02
申请号：US13055373
申请日：2008-07-30
CPC分类号： H02J9/062 , H02M5/4585 , Y10T307/625
摘要： A power conversion apparatus includes an inverter for converting DC power to AC power for supply to a load, a converter for converting AC power from an AC power supply to DC power for supply to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply from the AC power supply is faulty, and a filter including a reactor and a capacitor, for removing harmonics generated by the inverter. The inverter includes a three-level circuit which is a multi-level circuit.
摘要翻译： 电力转换装置包括：逆变器，用于将DC电力转换成用于供给负载的AC电力;将来自AC电源的AC电力转换成用于向逆变器供给的DC电力的转换器; DC电压转换器， 存储在蓄电池中的电力用于在从交流电源供电故障时向蓄电池提供直流电力到逆变器，以及用于去除由逆变器产生的谐波的电抗器和电容器的滤波器。 逆变器包括作为多电平电路的三电平电路。
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公开(公告)号：US20120218790A1
公开(公告)日：2012-08-30
申请号：US13498515
申请日：2009-09-30
IPC分类号： H02M7/44
CPC分类号： H02M7/493 , Y10T307/582
摘要： A power conversion system includes n (n being an integer of 2 or more) power conversion devices (P1 to P4) connected in parallel to a load (4); and a communication line (2) connected to the n power conversion devices (P1 to P4). Each of power conversion devices includes a communication circuit (10) which transmits a load current value detected by a current sensor (37) to each of other (n−1) power conversion devices through the communication line (2), and receives (n−1) load current values transmitted through the communication line (2) from other (n−1) power conversion devices; and an operation circuit (11) calculating a shared current and a cross current of the corresponding power conversion device based on the n load current values. Accordingly, a wiring line is prevented from becoming complicated even when the number of power conversion devices is increased.
摘要翻译： 电力转换系统包括并联连接到负载（4）的n（n为2以上的整数）电力转换装置（P1〜P4）。 以及连接到n个电力转换装置（P1〜P4）的通信线路（2）。 每个电力转换装置包括通信电路（10），其通过通信线路（2）将由电流传感器（37）检测的负载电流值发送到其他（n-1）个电力转换装置，并且接收（n -1）通过通信线路（2）从其他（n-1）个电力转换装置传输的电流值; 以及基于所述n个负载电流值计算相应的电力转换装置的共享电流和交叉电流的运算电路（11）。 因此，即使增加了电力转换装置的数量，也防止了布线变得复杂。
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公开(公告)号：US08208276B2
公开(公告)日：2012-06-26
申请号：US12812709
申请日：2009-02-20
CPC分类号： H02M7/487 , H02J9/062 , H02M5/4585
摘要： A three-level PWM converter includes first to third fuses having one terminals connected to a DC positive bus, a DC negative bus and a DC neutral point bus, respectively, first and second IGBT elements connected between respective ones of the other terminals of the first and second fuses and an AC line, an AC switch connected between the AC line and the other terminal of the third fuse, first and second diodes connected in anti-parallel to the first and second IGBT elements respectively, a first capacitor connected between the other terminals of the first and third fuses, and a second capacitor connected between the other terminals of the second and third fuses.
摘要翻译： 三电平PWM转换器包括分别连接到DC正母线，DC负母线和DC中性点母线的一个端子的第一至第三保险丝，分别连接在第一和第二 第二熔断器和交流线路，连接在第三熔断器的交流线路和另一端子之间的交流开关，分别与第一和第二IGBT元件反并联连接的第一和第二二极管，连接在另一个之间的第一电容器 第一和第三保险丝的端子，以及连接在第二和第三保险丝的其他端子之间的第二电容器。
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公开(公告)号：US20120013193A1
公开(公告)日：2012-01-19
申请号：US13256958
申请日：2009-04-17
IPC分类号： H02J3/00
CPC分类号： H02J9/062 , H02J13/0055 , Y02B70/3291 , Y02B90/222 , Y04S20/12 , Y04S20/248 , Y10T307/615 , Y10T307/62 , Y10T307/625 , Y10T307/696
摘要： In an uninterruptible power supply system, control sections of three uninterruptible power supply units are connected to one another by communication cables to configure one integrated control unit. The integrated control unit brings three switches into conduction if a bias feeding mode is selected by one arbitrary operation section and brings three switches into conduction if an inverter feeding mode is selected. Therefore, there is no need to separately provide an operation section and a control section for operating and controlling all of the uninterruptible power supply units.
摘要翻译： 在不间断电源系统中，三个不间断电源单元的控制部分通过通信电缆相互连接，以配置一个集成控制单元。 如果通过一个任意操作部分选择了偏置馈电模式，则集成控制单元将三个开关导通，并且如果选择了逆变器馈电模式，则使三个开关变为导通。 因此，不需要单独提供用于操作和控制所有不间断电源单元的操作部分和控制部分。
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公开(公告)号：US09013063B2
公开(公告)日：2015-04-21
申请号：US13256958
申请日：2009-04-17
CPC分类号： H02J9/062 , H02J13/0055 , Y02B70/3291 , Y02B90/222 , Y04S20/12 , Y04S20/248 , Y10T307/615 , Y10T307/62 , Y10T307/625 , Y10T307/696
摘要： In an uninterruptible power supply system, control sections of three uninterruptible power supply units are connected to one another by communication cables to configure one integrated control unit. The integrated control unit brings three switches into conduction if a bias feeding mode is selected by one arbitrary operation section and brings three switches into conduction if an inverter feeding mode is selected. Therefore, there is no need to separately provide an operation section and a control section for operating and controlling all of the uninterruptible power supply units.
摘要翻译： 在不间断电源系统中，三个不间断电源单元的控制部分通过通信电缆相互连接，以配置一个集成控制单元。 如果通过一个任意操作部分选择了偏置馈电模式，则集成控制单元将三个开关导通，并且如果选择了逆变器馈电模式，则使三个开关变为导通。 因此，不需要单独提供用于操作和控制所有不间断电源单元的操作部分和控制部分。
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公开(公告)号：US08994216B2
公开(公告)日：2015-03-31
申请号：US13055373
申请日：2008-07-30
CPC分类号： H02J9/062 , H02M5/4585 , Y10T307/625
摘要： A power conversion apparatus includes an inverter for converting DC power to AC power for supply to a load, a converter for converting AC power from an AC power supply to DC power for supply to the inverter, a DC voltage converter for converting a voltage value of power stored in a storage battery to supply DC power from the storage battery to the inverter when power supply from the AC power supply is faulty, and a filter including a reactor and a capacitor, for removing harmonics generated by the inverter. The inverter includes a three-level circuit which is a multi-level circuit.
摘要翻译： 电力转换装置包括：逆变器，用于将DC电力转换成用于供给负载的AC电力;将来自AC电源的AC电力转换成用于向逆变器供给的DC电力的转换器; DC电压转换器， 存储在蓄电池中的电力用于在从交流电源供电故障时向蓄电池提供直流电力到逆变器，以及用于去除由逆变器产生的谐波的电抗器和电容器的滤波器。 逆变器包括作为多电平电路的三电平电路。
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公开(公告)号：US20110049991A1
公开(公告)日：2011-03-03
申请号：US12865875
申请日：2009-03-05
IPC分类号： H02J3/32
CPC分类号： H02M1/44 , H02J9/06 , H02M2001/123 , Y10T307/505 , Y10T307/511 , Y10T307/522 , Y10T307/527 , Y10T307/538 , Y10T307/565 , Y10T307/625
摘要： In an uninterruptible power supply apparatus, a common mode current flowing from nodes (N1 to N3) to a line of a ground voltage (GND) through a stray capacitance (41) of a battery (40) is limited by a common mode reactor (34), and the low-level common mode current passing through the common mode reactor (34) is caused to flow to a virtual neutral line (NL) through a common mode capacitor (37). Therefore, the level of noise caused by the common mode current can be reduced.
摘要翻译： 在不间断电源装置中，通过共模电抗器（14）限制从节点（N1至N3）流过电池（40）的杂散电容（41）的接地电压（GND）线的共模电流 34），并且通过共模电抗器（34）的低电平共模电流通过共模电容器（37）流到虚拟中性线（NL）。 因此，可以降低由共模电流引起的噪声水平。
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公开(公告)号：US09548630B2
公开(公告)日：2017-01-17
申请号：US13202478
申请日：2009-03-18
摘要： An uninterruptible power supply apparatus includes a cooler cooling a converter/chopper circuit and a cooler cooling a PWM inverter. The converter/chopper circuit and the cooler make up one integrated unit. Accordingly, a smaller apparatus can be achieved, compared with a conventional apparatus in which a cooler is provided for each of a converter and a chopper.
摘要翻译： 不间断电源设备包括冷却冷却转换器/斩波电路的冷却器和冷却PWM逆变器的冷却器。 转换器/斩波电路和冷却器组成一个集成单元。 因此，与为转换器和斩波器中的每一个设置冷却器的常规装置相比，可以实现更小的装置。
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公开(公告)号：US09236769B2
公开(公告)日：2016-01-12
申请号：US13395248
申请日：2009-09-11
CPC分类号： H02J9/062 , H02M5/4585 , Y10T307/747
摘要： A control unit of an uninterruptible power supply device includes a PWM circuit generating a plurality of PWM signals controlling a plurality of IGBT elements of a power conversion unit; a plurality of output terminals for supplying the plurality of PWM signals to the plurality of IGBTs; and a switching circuit arranging the plurality of PWM signals in order in accordance with the type of the uninterruptible power supply device and supplying the PWM signals to the plurality of output terminals. Accordingly, the control unit can be shared among a plurality of types of uninterruptible power supply devices.
摘要翻译： 不间断电源装置的控制单元包括：PWM电路，其产生控制电力转换单元的多个IGBT元件的多个PWM信号; 多个输出端子，用于将多个PWM信号提供给多个IGBT; 以及开关电路，根据不间断电源装置的类型依次配置多个PWM信号，并向多个输出端子提供PWM信号。 因此，可以在多种类型的不间断电源装置之间共享控制单元。
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