公开(公告)号：US09722416B2

公开(公告)日：2017-08-01

申请号：US14232203

申请日：2012-07-11

申请人： John Godsk Nielsen ,  Ove Styhm

发明人： John Godsk Nielsen ,  Ove Styhm

IPC分类号： H02M3/158 ,  H02H7/12 ,  H02J1/10 ,  H02J3/38 ,  F03D9/25 ,  H02M1/32 ,  H02M1/36

CPC分类号： H02H7/1216 ,  F03D9/255 ,  H02J1/102 ,  H02J3/386 ,  H02M1/36 ,  H02M3/1582 ,  H02M2001/325 ,  Y02E10/72 ,  Y02E10/763

摘要： According to an embodiment, a power generation system is provided comprising a power generator; a plurality of converter modules, each converter module having a DC link, wherein the DC link of each converter module is connected to the DC links of the other converter modules of the plurality of converter modules via a fuse associated with the converter module; and a controller configured to, if it is detected that there is a fault in one of the converter modules, disconnect the converter module in which there is a fault from the power generator and connect two or more other converters module of the plurality of converter modules to the power generator and to control the power generation system to supply power to the DC links of the two or more other converter modules such that power is supplied to the converter module in which there is a fault via the fuse associated with the converter module such that the fuse associated with the converter module melts.

公开(公告)号：US09647448B2

公开(公告)日：2017-05-09

申请号：US13900430

申请日：2013-05-22

申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

发明人： Lieyi Fang ,  Shifeng Zhao ,  Bo Li ,  Zhiliang Chen

IPC分类号： G05F1/00 ,  G05F1/565 ,  H02M3/335 ,  H02H7/12

CPC分类号： H02H7/1203 ,  H02H7/12

摘要： System and method for protecting a power converter. A system includes a threshold generator configured to generate a threshold signal, and a first comparator configured to receive the threshold signal and a first signal and to generate a comparison signal. The first signal is associated with an input current for a power converter. Additionally, the system includes a pulse-width-modulation generator configured to receive the comparison signal and generate a modulation signal in response to the comparison signal, and a switch configured to receive the modulation signal and adjust the input current for the power converter. The threshold signal is associated with a threshold magnitude as a function of time. The threshold magnitude increases with time at a first slope during a first period, and the threshold magnitude increases with time at a second slope during a second period. The first slope and the second slope are different.

公开(公告)号：US09614365B2

公开(公告)日：2017-04-04

申请号：US14220905

申请日：2014-03-20

申请人： Cisco Technology, Inc.

发明人： Weizhong Tang ,  Sung Kee Baek ,  Craig Zimmerman

IPC分类号： H02H7/12 ,  G06F1/26 ,  H04M19/08 ,  G06F11/16

CPC分类号： H02H7/1213 ,  G06F1/26 ,  G06F11/16 ,  G06F11/2015 ,  H03K17/0822 ,  H04M19/08

摘要： A system and method for preventing bus voltage sagging when an Oring-FET in an N+1 redundant power supply configuration is faulty during power up. Each redundant power supply includes an Oring-FET and a voltage comparator. The voltage comparator receives and compares an input voltage and an output voltage of the Oring-FET during power up. In the event input voltage is less than the output voltage, the Oring-FET is deemed to be operating properly and provides output to a communicatively coupled system bus in response to the input voltage reaching a predetermined voltage threshold level. In the event the input voltage is approximately equal to the output voltage, the voltage comparator assists in preventing inrush current from flowing from the communicatively coupled system bus and prevents voltage sagging on the communicatively coupled system bus when another redundant power supply configuration is providing power to the communicatively coupled system bus.

公开(公告)号：US20160322903A1

公开(公告)日：2016-11-03

申请号：US14998791

申请日：2016-02-18

申请人： Guy J. Lestician

发明人： Guy J. Lestician

IPC分类号： H02M3/26 ,  H02M1/32 ,  H01F27/24 ,  H02H7/12 ,  H01F27/28

CPC分类号： H01F17/062 ,  G05F3/04 ,  H01F27/24 ,  H01F27/2823 ,  H01F27/40 ,  H01F27/42 ,  H01F30/08 ,  H01F30/16

摘要： A system for reducing electrical consumption includes a connection to an incoming power supply of a facility, in parallel, including a hot line, and a neutral line, a ground. Components are connected between the hot line and the neutral line in this order: front capacitors front arc suppressors, at least one front metal oxide varistor line transient voltage surge suppressor having a predetermined capability to suppress undesired power spikes, at least two inductor/metal oxide varistor iterative transformers, at least one of these being a three component iterative transformer with three distinct windings, followed by other components.

摘要翻译： 用于降低电力消耗的系统包括并联连接到设施的输入电源，包括热线，中性线，地面。 组件以这种顺序连接在热线和中性线之间：前电容器前电弧抑制器，至少一个前金属氧化物变阻器线路瞬时电压浪涌抑制器具有预定的能力以抑制不期望的功率尖峰，至少两个电感/金属氧化物 压敏电阻迭代变压器，其中至少一个是具有三个不同绕组的三分量迭代变压器，其次是其他组件。

公开(公告)号：US20160322893A1

公开(公告)日：2016-11-03

申请号：US15105940

申请日：2014-11-11

申请人： ROBERT BOSCH GMBH

发明人： Mirko SCHINZEL ,  Nils DRAESE

IPC分类号： H02M1/32 ,  H02H7/12

CPC分类号： H02M1/32 ,  H02H7/0844 ,  H02H7/1203 ,  H02H7/1225 ,  H02M1/088 ,  H02M3/1584 ,  H02M2001/325 ,  H02M2003/1586

摘要： A circuit system having a voltage converter having an input path, an output path, and having a plurality of phases, each phase having at least one half-bridge and at least one fuse, each branch of the half-bridge having a respective MOSFET. The circuit system recognizes a defective MOSFET and controls the MOSFETs of the intact phases in such a way that a sufficiently large current trips the fuse connected in series with the defective MOSFET in order to enable an emergency operation of the voltage converter. A method for operating such a circuit system is also described.

摘要翻译： 一种具有电压转换器的电路系统，具有输入路径，输出路径，并且具有多个相位，每相具有至少一个半桥和至少一个熔丝，所述半桥的每个分支具有相应的MOSFET。 电路系统识别有缺陷的MOSFET并且以完全相位的MOSFET来控制，使足够大的电流跳开与故障MOSFET串联连接的熔丝，以便能够实现电压转换器的紧急操作。 还描述了用于操作这种电路系统的方法。

公开(公告)号：US09467081B2

公开(公告)日：2016-10-11

申请号：US14500351

申请日：2014-09-29

申请人： INGETEAM POWER TECHNOLOGY, S.A.

发明人： Eduardo Sanz Ceballos ,  Nagore Azkarate Askasua ,  Jose Carlos Alonso Segade ,  Iker Esandi Uriz ,  Ainhoa Cárcar Mayor

IPC分类号： H02P9/00 ,  F03D9/00 ,  F03D7/00 ,  H02J1/00 ,  H02H7/12

CPC分类号： H02P9/007 ,  H02H7/1216 ,  H02J1/00 ,  H02J3/386 ,  H02M1/32 ,  H02M5/4585 ,  H02M7/00 ,  H02P9/006 ,  Y02E10/763

摘要： Protection system for a power converter connected to a doubly fed induction generator having a rotor and a stator. The power converter includes a grid-side-converter, a machine-side-converter, a DC link between both converters, a chopper connected to the DC link, and a hardware protection system connected to the rotor of the generator. The protection system includes a first control unit for controlling the hardware protection system depending on the voltage in the DC link, a second control unit for controlling the chopper depending on the DC link voltage, and a third control unit for controlling both converters.

摘要翻译： 连接到具有转子和定子的双馈感应发电机的功率转换器的保护系统。 电力转换器包括电网侧转换器，机器侧转换器，两个转换器之间的直流链路，连接到直流链路的斩波器和连接到发电机的转子的硬件保护系统。 保护系统包括：第一控制单元，用于根据DC链路中的电压来控制硬件保护系统;第二控制单元，用于根据DC链路电压控制斩波器;以及第三控制单元，用于控制两个转换器。

公开(公告)号：US09455568B2

公开(公告)日：2016-09-27

申请号：US14253095

申请日：2014-04-15

申请人： General Electric Company

发明人： Robert Gregory Wagoner ,  Anthony Michael Klodowski ,  Steven Wade Sutherland ,  Rafael Ignacio Bedia ,  Benjamin Arthur Niemoeller

IPC分类号： H02H7/12 ,  H02J7/00 ,  H02M3/00 ,  H02J3/32 ,  H02J3/38 ,  H02H7/18

CPC分类号： H02H7/1213 ,  H02H7/18 ,  H02J3/32 ,  H02J3/386 ,  H02J7/0031 ,  H02J7/0052 ,  H02J2007/0039 ,  H02J2007/0059 ,  Y02E10/763 ,  Y02E10/766 ,  Y02E70/30

摘要： Renewable energy power systems, DC to DC converters, and methods for operating energy storage systems are provided. A system includes a power converter having a DC bus, and an energy storage system coupled to the DC bus of the power converter. The energy storage system includes an energy storage device and a switching power supply coupled between the energy storage device and the DC bus of the power converter. The switching power supply includes a plurality of switching elements, and an energy storage device protection circuit coupled between the plurality of switching elements and the energy storage device, the energy storage device protection circuit including a solid state switch. The switching power supply further includes a fuse coupled to the energy storage device protection circuit.

摘要翻译： 提供了可再生能源电力系统，直流到直流转换器和操作储能系统的方法。 一种系统包括具有DC总线的功率转换器和耦合到功率转换器的DC总线的能量存储系统。 能量存储系统包括耦合在能量存储装置和功率转换器的DC总线之间的能量存储装置和开关电源。 开关电源包括多个开关元件，以及耦合在所述多个开关元件和所述能量存储装置之间的能量存储装置保护电路，所述能量存储装置保护电路包括固态开关。 开关电源还包括耦合到能量存储装置保护电路的熔丝。

公开(公告)号：US09444246B2

公开(公告)日：2016-09-13

申请号：US14287507

申请日：2014-05-27

申请人： DENSO CORPORATION ,  NIPPON SOKEN, INC.

发明人： Kimikazu Nakamura ,  Yuji Hayashi

IPC分类号： H02H3/20 ,  H02H7/12 ,  H02M1/32 ,  H02M3/155 ,  H02M3/335 ,  H02M7/5387 ,  H02H3/44 ,  G05F1/573 ,  H02H9/02

CPC分类号： H02H7/1213 ,  G05F1/573 ,  H02H3/44 ,  H02H9/02 ,  H02M1/32 ,  H02M3/155 ,  H02M3/335 ,  H02M7/5387

摘要： In a power converter, a driver that drives, according to a control signal, a switching element of a switch circuit for converting input power to output power. The control signal represents how to drive the switching element. A controller outputs the control signal to the driver for controlling the driver. A measuring unit measures a value of input power input to the switch circuit. A protection determining unit determines, based on the measured value of the input power, whether there is a need to protect the power converter. The protection determining unit outputs a stop control signal to at least one of the driver and the controller based on a result of the determination of whether there is a need to protect the power converter. The stop control signal represents whether to forcibly stop drive of the switching element.

摘要翻译： 在功率转换器中，驱动器根据控制信号驱动用于将输入功率转换为输出功率的开关电路的开关元件。 控制信号表示如何驱动开关元件。 控制器将控制信号输出到驾驶员以控制驾驶员。 测量单元测量输入到开关电路的输入电源的值。 保护确定单元基于输入功率的测量值确定是否需要保护功率转换器。 保护确定单元基于确定是否需要保护功率转换器的结果向至少一个驱动器和控制器输出停止控制信号。 停止控制信号表示是否强制停止开关元件的驱动。

公开(公告)号：US20160248352A1

公开(公告)日：2016-08-25

申请号：US15029648

申请日：2013-10-18

申请人： MITSUBISHI ELECTRIC CORPORATION

发明人： Yosuke SHINOMOTO ,  Kazunori HATAKEYAMA ,  Shota KAMIYA

IPC分类号： H02P6/12 ,  H02M3/158 ,  F25B31/02 ,  H02K1/02 ,  H02K1/27 ,  H02M7/06 ,  H02H7/12

CPC分类号： H02P6/12 ,  F25B31/02 ,  H02H7/1213 ,  H02H7/1255 ,  H02K1/02 ,  H02K1/27 ,  H02M1/32 ,  H02M3/158 ,  H02M7/06 ,  H02M7/2176 ,  H02M2001/007 ,  H02M2001/325 ,  H02M2003/1552 ,  H02P29/027

摘要： A direct-current power supply device includes a rectifier connected to a power supply, a charge storage unit configured by a first capacitor and a second capacitor connected in series, a switching unit configured by a first switching element 4a and a second switching element connected in series and backflow preventing elements that suppress a backflow of electric charges from the charge storage unit, a reactor, a control unit that controls operations of the first switching element and the second switching element, and a direct-current-voltage detecting unit that detects a first both-end voltage, which is a voltage across the first capacitor, and a second both-end voltage, which is a voltage across the second capacitor. The control unit detects, on the basis of a voltage difference between the first both-end voltage and the second both-end voltage, a short-circuit failure of one of the first switching element and the second switching element.

摘要翻译： 直流电源装置包括连接到电源的整流器，由第一电容器和串联连接的第二电容器构成的电荷存储单元，由第一开关元件4a和第二开关元件连接的开关单元 阻止来自电荷存储单元的电荷回流的串联和防回流元件，控制单元，控制第一开关元件和第二开关元件的动作;以及直流电压检测单元，其检测 作为第一电容器两端的电压的第一两端电压和作为第二电容器两端的电压的第二两端电压。 控制单元基于第一两端电压和第二双端电压之间的电压差来检测第一开关元件和第二开关元件之一的短路故障。

公开(公告)号：US09397550B2

公开(公告)日：2016-07-19

申请号：US14075303

申请日：2013-11-08

申请人： ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.

发明人： Xiaomin Huang ,  Huawei Lyu ,  Qiang Luo ,  Lieyi Fang

IPC分类号： H02M1/32 ,  H02M3/335 ,  H02H7/12 ,  H02H5/04

CPC分类号： H02H7/1213 ,  H02H3/20 ,  H02H5/042 ,  H02M1/32 ,  H02M3/33515 ,  H02M3/33523 ,  H02M2001/327

摘要： Systems and methods are provided for protecting a power conversion system. A system controller includes a first controller terminal and a second controller terminal. The first controller terminal is configured to provide a drive signal to close and open a switch to affect a first current flowing through a primary winding of a power conversion system. The second controller terminal is configured to receive first input signals during one or more first switching periods and receive second input signals during one or more second switching periods. The system controller is configured to determine whether a temperature associated with the power conversion system is larger than a predetermined temperature threshold, and in response to the temperature associated with the power conversion system being larger than the predetermined temperature threshold, generate the drive signal to cause the switch open and remain open to protect the power conversion system.

摘要翻译： 提供了用于保护电力转换系统的系统和方法。 系统控制器包括第一控制器端子和第二控制器端子。 第一控制器端子被配置为提供驱动信号以关闭和打开开关以影响流过功率转换系统的初级绕组的第一电流。 第二控制器终端被配置为在一个或多个第一切换周期期间接收第一输入信号，并且在一个或多个第二切换周期期间接收第二输入信号。 系统控制器被配置为确定与功率转换系统相关联的温度是否大于预定温度阈值，并且响应于与功率转换系统相关联的温度大于预定温度阈值，产生驱动信号以引起 开关打开并保持开路以保护电力转换系统。