公开(公告)号：US09940812B2

公开(公告)日：2018-04-10

申请号：US14908193

申请日：2013-08-08

申请人： SCHNEIDER ELECTRIC USA, INC.

发明人： Jeremy D. Schroeder ,  Robert B. Isaacson ,  Timothy J. Watts

IPC分类号： G08B21/18 ,  H02H1/00 ,  H02H3/04 ,  G01R31/327 ,  H02H3/38 ,  H01H9/16 ,  H01H71/04

CPC分类号： G08B21/18 ,  G01R31/3275 ,  H01H9/167 ,  H01H71/04 ,  H01H2071/042 ,  H01H2071/048 ,  H02H1/0061 ,  H02H3/04 ,  H02H3/38

摘要： An apparatus (100) and method are provided for translating diagnostic information provided by a circuit protective device, such as a circuit breaker, to a graphic display format. The apparatus and method monitor through a sensor (120) a trip sequence implemented by the circuit protective device as a function of time during a read out operation to indicate a type of fault condition from a plurality of fault conditions for a prior occurrence of a trip event or diagnostic information. The apparatus and method then determine a time period of the monitored trip sequence, and determine the type of fault condition based on the determined time period. Information concerning the determined type of fault condition is outputted.

公开(公告)号：US09923364B2

公开(公告)日：2018-03-20

申请号：US14910195

申请日：2014-09-01

申请人： MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

发明人： Keiji Nagasaka ,  Hidetaka Sato

IPC分类号： H03K17/08 ,  H03K17/687 ,  H02H3/20 ,  H03K17/04 ,  H03K17/082 ,  H02H1/00

CPC分类号： H02H3/20 ,  H02H1/0061 ,  H03K17/0406 ,  H03K17/0828 ,  H03K2217/0027

摘要： The purpose of the present invention is to improve responsiveness to short-circuit detection and rapidly cut off power supply to a load when a short circuit occurs. When a short circuit occurs, voltage exceeding the reference voltage of a comparison circuit is inputted as an input signal from a voltage output circuit, and a high signal is outputted from the comparison circuit. An FET is turned on by the output of the comparison circuit changing to the high signal. Consequently, an electric charge stored between the gate and emitter of an IGBT is discharged through a resistor, gate voltage decreases, and thereby the IGBT is turned off. The high signal of the comparison signal is held for a predetermined period by a holding circuit, and the IGBT is maintained in the off state over this period.

公开(公告)号：US20180062379A1

公开(公告)日：2018-03-01

申请号：US15675996

申请日：2017-08-14

申请人： Delta Electronics (Shanghai) CO., LTD

发明人： Xuancai ZHU ,  Bingwen WENG ,  Jianming CHEN ,  Yafeng LIAO ,  Jinfa ZHANG

IPC分类号： H02H3/30 ,  H01L31/02 ,  H02H7/20 ,  H02J3/38

CPC分类号： H02H3/305 ,  H01L31/02021 ,  H02H1/0061 ,  H02H7/20 ,  H02J3/383 ,  Y02B10/14

摘要： A photovoltaic power generation system includes a plurality of photovoltaic arrays, a plurality of shutdown units and an inverter. The shutdown unit is adjacent to the corresponding photovoltaic array, connected in parallel with the corresponding photovoltaic array, and electrically connected to the inverter via high voltage wires; the photovoltaic power generation system further includes a control unit configured to receive a detection signal indicating a state of the AC side of the inverter, monitor whether the AC side of the inverter is in a power-off state according to the detection signal, and generate a first power-off signal when the AC side of the inverter is in the power-off state; and the shutdown units are configured to receive the first power-off signal, and stop a power transmission from the photovoltaic arrays to the inverter according to the first power-off signal.

公开(公告)号：US20170236676A1

公开(公告)日：2017-08-17

申请号：US15319814

申请日：2015-06-19

申请人： EATON INDUSTRIES (AUSTRIA) GMBH

发明人： Michael BARTONEK

IPC分类号： H01H89/06 ,  H02H9/00 ,  H02H1/00 ,  H02H7/22 ,  H03K17/567 ,  H02J13/00

CPC分类号： H01H89/06 ,  H01H9/542 ,  H01H89/08 ,  H01H2009/544 ,  H01H2009/546 ,  H02H1/0023 ,  H02H1/0061 ,  H02H3/08 ,  H02H5/041 ,  H02H7/22 ,  H02H9/001 ,  H02J13/0075 ,  H03K17/567 ,  Y02E60/7853 ,  Y04S40/126

摘要： A circuit breaker with a switching path has at least one line interruption apparatus, wherein the circuit breaker has a disconnection unit and a connection unit which are each connected to the line interruption apparatus. The switching device has at least one measuring arrangement for measuring at least one electrical variable on the at least one switching path. The disconnection unit further has a comparison and decision unit, which comparison and decision unit is connected to the measuring arrangement and to the line interruption apparatus. The circuit breaker has a first data interface, which first data interface is designed to receive at least one connection command and/or one disconnection command, and wherein the first data interface is connected to the disconnection unit and the connection unit.

公开(公告)号：US20170187182A1

公开(公告)日：2017-06-29

申请号：US15350736

申请日：2016-11-14

申请人： ALPINE ELECTRONICS, INC.

发明人： Norihiko Tanaka

IPC分类号： H02H9/04 ,  H01L27/06 ,  H02H1/00

CPC分类号： H02H9/044 ,  H01L27/0647 ,  H01L29/866 ,  H02H1/0007 ,  H02H1/0061 ,  H03K19/00315

摘要： An overvoltage protection device includes a resistor that is connected in series between an internal signal line connected to a communication terminal of a processor and a communication line, a diode of which a cathode is connected to the internal signal line and an anode is connected to a ground, and a PNP transistor of which a base is connected to a power supply terminal, an emitter is connected to the internal signal line, and a collector is connected to the ground. When a base-emitter voltage (a junction saturation voltage) of the transistor in operation is defined as VBE and a power source is turned on (a voltage V1) by the operation of the transistor, a voltage of the internal signal line is limited to the source voltage V1+VBE. When the power source is turned off (a voltage 0 V), the voltage of the internal signal line is limited to the source voltage 0 V+VBE.

公开(公告)号：US09620955B2

公开(公告)日：2017-04-11

申请号：US13841260

申请日：2013-03-15

申请人： Schweitzer Engineering Laboratories, Inc.

发明人： David J. Dolezilek ,  Benjamin S. Day ,  Dennis Gammel ,  Ryan Bradetich ,  Jerry J Bennett ,  Christopher Ewing

IPC分类号： G06F15/167 ,  H02H7/26 ,  H04L29/08 ,  H02H1/00

CPC分类号： H02H7/261 ,  H02H1/0061 ,  H04L67/2842

摘要： Systems and methods are presented for managing communication between devices in an electric power generation and delivery system. In certain embodiments, a method for managing communication messages performed by a network device included in an electric power generation and delivery system may include receiving a message including an identifier and data state information via a communications interface. A determination may be made that that the message represents a data state change associated with the identifier. The message may be stored in a message buffer associated with the identifier. Finally, the stored message may be transmitted from the message buffer to an intelligent electronic device.

公开(公告)号：US09608428B2

公开(公告)日：2017-03-28

申请号：US14159177

申请日：2014-01-20

申请人： Infineon Technologies Austria AG

发明人： Luca Petruzzi ,  Stephane Fraisse ,  Robert Illing

IPC分类号： H01H73/00 ,  H02H1/00 ,  G01R19/165 ,  G01R31/327 ,  H02H3/04 ,  H03K17/18

CPC分类号： H02H1/0061 ,  G01R19/165 ,  G01R31/327 ,  H02H3/04 ,  H03K17/18

摘要： Techniques are described for determining whether a switch circuit experienced one of a latched overload condition and an open load with no input voltage condition. In the techniques, a first diagnostic signal is output if the switch circuit experienced the latched overload condition. Also, in the techniques, a second, different diagnostic signal is output if the switch circuit experienced the open load with no input voltage condition.

公开(公告)号：US09590411B2

公开(公告)日：2017-03-07

申请号：US13327531

申请日：2011-12-15

申请人： Shankar V. Achanta

发明人： Shankar V. Achanta

IPC分类号： H04B7/00 ,  H04B15/00 ,  H02H1/00 ,  H04J3/06

CPC分类号： H02H1/0061 ,  H04J3/0638 ,  H04J3/0667

摘要： The present disclosure provides systems and methods for synchronizing the time signals of master and remote IEDs using a radio link. According to one embodiment, a master IED may transmit an adjusted time signal to a remote IED via a radio signal. The master IED may determine a propagation delay between the master IED and a remote IED. The master IED may then adjust a master time signal by the propagation delay and transmit the adjusted time signal to the remote IED. Alternatively, a remote IED may request and receive a master time signal from a master IED via a radio signal. The remote IED may then determine the propagation delay and adjust the received master time signal accordingly. According to various embodiments, the time signal of a master and remote IED may be synchronized to within at least one millisecond.

摘要翻译： 本公开提供了使用无线电链路来同步主和远程IED的时间信号的系统和方法。 根据一个实施例，主IED可以经由无线电信号将经调整的时间信号发送到远程IED。 主IED可以确定主IED和远程IED之间的传播延迟。 然后，主IED可以通过传播延迟来调整主时间信号，并将经调整的时间信号发送到远程IED。 或者，远程IED可以经由无线电信号从主IED请求并接收主时间信号。 然后，远程IED可以确定传播延迟并相应地调整所接收的主时间信号。 根据各种实施例，主和远程IED的时间信号可以在至少一毫秒内被同步。

公开(公告)号：US20160372914A1

公开(公告)日：2016-12-22

申请号：US14910195

申请日：2014-09-01

申请人： MITSUBISHI HEAVY INDUSTRIES AUTOMOTIVE THERMAL SYSTEMS CO., LTD.

发明人： Keiji NAGASAKA ,  Hidetaka SATO

IPC分类号： H02H3/20 ,  H03K17/04 ,  H02H1/00 ,  H03K17/082

CPC分类号： H02H3/20 ,  H02H1/0061 ,  H03K17/0406 ,  H03K17/0828 ,  H03K2217/0027

摘要： The purpose of the present invention is to improve responsiveness to short-circuit detection and rapidly cut off power supply to a load when a short circuit occurs. When a short circuit occurs, voltage exceeding the reference voltage of a comparison circuit is inputted as an input signal from a voltage output circuit, and a high signal is outputted from the comparison circuit. An FET is turned on by the output of the comparison circuit changing to the high signal. Consequently, an electric charge stored between the gate and emitter of an IGBT is discharged through a resistor, gate voltage decreases, and thereby the IGBT is turned off. The high signal of the comparison signal is held for a predetermined period by a holding circuit, and the IGBT is maintained in the off state over this period.

摘要翻译： 本发明的目的是提高对短路检测的响应性，并且在发生短路时快速切断对负载的电源。 当发生短路时，从电压输出电路输入超过比较电路的参考电压的电压作为输入信号，从比较电路输出高信号。 FET通过比较电路的输出变为高电平而导通。 因此，存储在IGBT的栅极和发射极之间的电荷通过电阻器放电，栅极电压降低，从而IGBT截止。 比较信号的高信号由保持电路保持预定的时间段，并且IGBT在该时间段内保持在截止状态。

公开(公告)号：US20160268914A1

公开(公告)日：2016-09-15

申请号：US15057353

申请日：2016-03-01

申请人： LSIS CO., LTD.

发明人： SEUNG HUN LEE ,  JONG BAE KIM ,  EUNG SOO KIM

IPC分类号： H02M5/42

CPC分类号： H02M5/42 ,  G05B9/03 ,  H02H1/0061 ,  H02H3/08 ,  H02H7/261 ,  H02H7/263 ,  H02H7/30

摘要： A redundant control device of a high voltage direct current (HVDC) transmission system is provided. The redundant control device includes a first system and a second system that performs a function corresponding to that of the first system; and a first change over logic (COL) and a second COL that determine whether to switch between the first system and the system, wherein there are optical communication modules between the first system and the first COL, between the first COL and the second COL, and between the second system and the second COL to transmit and receive data, and the first COL and the second COL includes a monitoring control unit that checks a connection or wiring state of the optical communication modules and validity of transmission data.

摘要翻译： 提供高压直流（HVDC）传输系统的冗余控制装置。 冗余控制装置包括执行与第一系统相对应的功能的第一系统和第二系统; 和第一COL（逻辑）和第二COL（第一COL）决定是否在第一系统和系统之间切换，其中在第一系统和第一COL之间存在第一COL和第二COL之间的光通信模块， 并且在第二系统和第二COL之间发送和接收数据，并且第一COL和第二COL包括检查光通信模块的连接或布线状态和发送数据的有效性的监视控制单元。