公开(公告)号：EP3367548A1

公开(公告)日：2018-08-29

申请号：EP18157392.4

申请日：2018-02-19

申请人： JTEKT Corporation

发明人： MATSUHISA, Koichiro ,  SUMASU, Hiroshi

IPC分类号： H02M1/32 ,  H02M7/5387 ,  H02H7/122

CPC分类号： H02M1/143 ,  B62D5/0463 ,  H02H7/1222 ,  H02M1/32 ,  H02M7/5387 ,  H02M7/53871 ,  H02M2001/322 ,  H02P23/14 ,  H02P27/08

摘要： When supply of electric power to an inverter using a normally-ON switching element is abnormally stopped, a flow of a current to the switching element of the inverter is reduced. An inverter circuit (60) includes an inverter (40) having at least one arm including two normally-ON switching elements (T1, T2) connected in series between two lines (LI, L2) to which a voltage of a power supply (51) is applied, a smoothing capacitor (C1) connected between the two lines (LI, L2) at a position between the power supply (51) and the inverter (40), and a normally-OFF relay (T7) connected into the first line (LI) out of the two lines (LI, L2) at a position between the smoothing capacitor (CI) and the inverter (40).

公开(公告)号：EP3367526A1

公开(公告)日：2018-08-29

申请号：EP17158089.7

申请日：2017-02-27

申请人： ABB Schweiz AG

发明人： Beck, Christoffer ,  Koivula, Ville ,  Juvonen, Linda

IPC分类号： H02H1/00 ,  G01R31/40 ,  H02H7/20 ,  H02H7/122 ,  H02H3/42

CPC分类号： H02H1/0015 ,  G01R31/025 ,  G01R31/40 ,  H02H1/0023 ,  H02H3/422 ,  H02H7/1222 ,  H02H7/20 ,  Y02E10/56

摘要： A method for protecting an inverter assembly against a direct current arc, the inverter assembly comprising an input (DC IN ), an output (AC OUT ), an inverter (INV), a direct current conductor system electrically conductively connecting the input (DC IN ) to the inverter (INV), the method comprising detecting a direct current arc present in the direct current conductor system by means of an arc detection process, and extinguishing the direct current arc detected by the arc detection process. The arc detection process comprises determining an input power of the inverter assembly, determining an output power of the inverter assembly, comparing the input power and the output power in order to determine whether there is an indicative power difference between the input power and the output power, and detecting the direct current arc if predetermined arc conditions are fulfilled, the predetermined arc conditions include presence of the indicative power difference.

公开(公告)号：EP3211777A1

公开(公告)日：2017-08-30

申请号：EP17157233.2

申请日：2017-02-21

申请人： JTEKT CORPORATION

发明人： KITAMOTO, Hiroshi

IPC分类号： H02M1/32 ,  H01L29/12 ,  H01L29/16 ,  H02H11/00

CPC分类号： B62D5/046 ,  H01L29/7786 ,  H02H7/1222 ,  H02H11/002 ,  H02M1/32 ,  H02M7/537 ,  H02P6/17 ,  H02P27/08 ,  H02P29/024

摘要： An inverter includes a positive electrode terminal PT and a negative electrode terminal NT, upper-arm switching elements T1, T3, T5 and lower-arm switching elements T2, T4, T6, and a voltage divider 42 that supplies partial voltages of a voltage between the positive electrode terminal PT and the negative electrode terminal NT to a gate and a drain, respectively, of the lower-arm switching element T2. The lower-arm switching element T2 includes an HEMT. In the voltage divider 42, the partial voltages are set to turn the lower-arm switching element T2 off when a positive electrode and a negative electrode of a DC power supply 51 are reversely connected to the positive electrode terminal PT and the negative electrode terminal NT, respectively.

摘要翻译： 逆变器包括正电极端子PT和负电极端子NT，上臂开关元件T1，T3，T5和下臂开关元件T2，T4，T6以及分压器42，该分压器42提供 正电极端子PT和负电极端子NT分别连接到下臂开关元件T2的栅极和漏极。 下臂开关元件T2包括HEMT。 在分压器42中，当DC电源51的正电极和负电极反向连接到正电极端子PT和负电极端子NT时，分压被设置为关断下臂开关元件T2 ， 分别。

公开(公告)号：EP2381573A4

公开(公告)日：2017-06-07

申请号：EP09834364

申请日：2009-12-17

申请人： HITACHI POWER SEMICONDUCTOR DEVICE LTD ,  SANDEN HOLDINGS CORP

发明人： MAEDA DAISUKE ,  ITO YOSHIKI ,  SHIRAHAMA HIDEFUMI ,  KOBAYASHI KOJI ,  YOSHIDA HIROSHI ,  TAKADA KOHEI

IPC分类号： H02M7/48 ,  H02H7/12 ,  H02H7/122

CPC分类号： H02M1/32 ,  H02H7/1216 ,  H02H7/1222 ,  H02M1/4225 ,  H02M7/53873 ,  H02M2001/0009 ,  Y02B70/126

摘要： A three-phase inverter power supply circuit protecting apparatus includes: a power supply circuit 4 for converting an AC voltage into a DC voltage; a three-phase inverter circuit 3 for receiving the DC output as input to drive an AC motor 11; a power supply current detecting circuit 7, 13 for detecting the current of a power supply circuit 2; a circuit 10, 15 for detecting the DC input current of the inverter 3; a circuit 14 for detecting the DC input voltage of the inverter 3; an inverter input power calculating means 26 for calculating the input power of the inverter based on these DC input current and voltage; a power supply voltage anomaly detecting means 27 for performing power supply voltage anomaly judgment based on the relationship between the power supply current and the inverter input power; and a control means for halting the controls of the power supply circuit 2 and the three-phase inverter 3 in response to the anomaly judgment.

摘要翻译： 三相逆变器电源电路保护装置包括：电源电路4，用于将AC电压转换为DC电压; 三相逆变器电路3，用于接收DC输出作为输入以驱动AC电动机11; 检测电源电路2的电流的电源电流检测电路7,13， 检测逆变器3的直流输入电流的电路10,15， 检测逆变器3的直流输入电压的电路14， 逆变器输入功率计算装置26，用于基于这些DC输入电流和电压来计算逆变器的输入功率; 电源电压异常检测装置27，用于根据电源电流与逆变器输入功率之间的关系进行电源电压异常判断; 以及响应于异常判断而停止电源电路2和三相逆变器3的控制的控制装置。

公开(公告)号：EP2849325B1

公开(公告)日：2017-05-17

申请号：EP14183224.6

申请日：2014-09-02

申请人： LSIS Co., Ltd.

发明人： Yun, Dong Jin

IPC分类号： H02M1/32 ,  H02M7/48 ,  H02J3/38 ,  H02H11/00

CPC分类号： H02M7/44 ,  H02H7/1222 ,  H02H11/002 ,  H02J3/383 ,  Y02E10/563

公开(公告)号：EP2944005A4

公开(公告)日：2016-09-14

申请号：EP14737562

申请日：2014-01-10

申请人： COOPER TECHNOLOGIES CO

发明人： KOJOVIC LJUBOMIR A

IPC分类号： H02H3/20 ,  H02H1/04

CPC分类号： H02H9/02 ,  H02H1/04 ,  H02H3/20 ,  H02H7/1222 ,  H02H7/1252 ,  H02H9/00

公开(公告)号：EP3024134A3

公开(公告)日：2016-08-03

申请号：EP15190725.0

申请日：2015-10-21

申请人： Sungrow Power Supply Co., Ltd.

发明人： CHENG, Lin ,  PAN, Nianan ,  WANG, Zhicheng ,  TAO, Lei

IPC分类号： H02M7/493 ,  H02H7/122 ,  H02M7/44

CPC分类号： H02M7/44 ,  H02H7/1222 ,  H02H7/1227 ,  H02M7/493

摘要： Provided are a parallel inverter system, and a shutdown control method and a shutdown control device for the parallel inverter system. A shutdown instruction is determined and responded according to a level of the shutdown instruction. The shutdown instruction is determined to be an emergency shutdown instruction under certain emergency shutdown conditions, and a driving signal for the power switch devices of the inverter apparatus is needed to be instantly locked out. The shutdown instruction is determined to be a normal shutdown instruction under non-emergency shutdown conditions, a switch-off signal is transmitted to alternating-current switches connected to the inverter apparatus to be shut down, states of the alternating-current switches connected to the inverter apparatus to be shut down are detected, the driving signal for the power switch devices of the inverter apparatus to be shut down is instantly locked out in a case that the alternating-current switches are switched off. Therefore, the stable and safe operation of the parallel inverter system can be guaranteed maximally, and hazards due to circular currents can be prevented maximally.

摘要翻译： 提供并联逆变器系统，以及并联逆变器系统的关闭控制方法和关闭控制装置。 关机指令根据关机指令的级别来确定和响应。 关机指令在特定的紧急关机条件下被确定为紧急关机指令，需要瞬间锁定逆变器装置的电源开关装置的驱动信号。 关断指令被确定为在非紧急关闭条件下的正常关机指令，断开信号被发送到连接到逆变器装置的交流开关以关闭，交流开关的状态被连接到 检测到要关断的逆变器装置时，在交流开关断开的情况下，要关断的逆变器装置的功率开关器件的驱动信号立即被锁定。 因此，能够最大限度地保证并联逆变器系统的稳定和安全运行，并且可以最大限度地防止由于环流引起的危险。

公开(公告)号：EP2907208A2

公开(公告)日：2015-08-19

申请号：EP13780079.3

申请日：2013-09-20

申请人： Bender GmbH & Co. KG ,  Ellenberger & Poensgen GmbH

发明人： MÖLL, Winfried ,  SCHÄFER, Oliver ,  SELLNER, Harald ,  HÄUSLEIN, Bernd ,  KAMMER, Michael ,  DECKER, Timm ,  STROBL, Christian ,  WEBER, Waldemar ,  WIERSCH, Markus ,  ZEBERL, Jürgen

IPC分类号： H02H1/00 ,  G01R31/40 ,  H02H3/33 ,  H02H7/20 ,  H01H83/20 ,  H01H83/22 ,  H02H7/122

CPC分类号： G01R31/025 ,  G01R15/183 ,  G01R17/02 ,  H01H83/20 ,  H01H83/226 ,  H02H1/0015 ,  H02H3/08 ,  H02H3/33 ,  H02H7/1222 ,  H02H7/1227 ,  H02S50/10 ,  Y02E10/56

摘要： The invention relates to a differential current monitoring device for monitoring differential currents in power supply systems, having a first measuring current transformer and a measuring circuit for determining the differential current and having a computing unit for evaluating the differential current and for generating a switch-off signal. The differential current monitoring device has a device for detecting arcs, the integration of which according to the invention can considerably reduce the technical effort needed to monitor the differential current, combined with the arc detection, in comparison with a functionally and spatially separate arrangement of both protective measures.

公开(公告)号：EP2874298A3

公开(公告)日：2015-07-01

申请号：EP14193453.9

申请日：2014-11-17

申请人： LSIS Co., Ltd.

发明人： Bae, Tae Suk ,  Lee, Jae Moon

IPC分类号： H02M5/458 ,  H02M1/36

CPC分类号： H02M5/458 ,  H02H7/10 ,  H02H7/1222 ,  H02H7/125 ,  H02H9/002 ,  H02M1/32 ,  H02M1/36

摘要： A pre-charging circuit of inverter is disclosed, the pre-charging circuit of inverter including a relay arranged between an output node of the rectifier and an input node of the DC-link capacitor, and a pre-charging resistor arranged between an output node of the rectifier and an input node of the inverter unit, whereby a degree of freedom for PCB design can be obtained.

公开(公告)号：EP2434628A2

公开(公告)日：2012-03-28

申请号：EP11182106.2

申请日：2011-09-21

申请人： Fuji Electric Co., Ltd.

发明人： Higuchi, Shinichi

IPC分类号： H02M1/32 ,  H02M7/5387

CPC分类号： H02M1/32 ,  H02H7/1222 ,  H02M5/458 ,  H02M7/48 ,  H02P29/02

摘要： An object is to provide an inverter device overvoltage protection method that can appropriately protect the inverter device 2 from an overvoltage condition. When a direct current Voltage rises, and a direct current Voltage detection value detected by a direct current voltage detector 52 exceeds a second direct current voltage level, a protective circuit 50 carries out a stop of the operation of an inverter device 2 by outputting an inhibit signal to a gate drive circuit 51, but it is determined at this time that the rise of the direct current voltage is temporary, and no error output signal is output from an error signal generator 55 to the exterior of the inverter device 2. Meanwhile, in the event that the direct current voltage rises further while the inverter device 2 is temporarily stopped, and the direct current voltage detection value exceeds a first direct current Voltage level, it is determined that protection of the inverter device 2 is necessary, and an error output signal is output to the exterior of the inverter device 2.

摘要翻译： 本发明的目的是提供一种可以适当地保护逆变器装置2免受过电压状态的逆变器装置的过电压保护方法。 当直流电压上升时，由直流电压检测器52检测到的直流电压检测值超过第二直流电压电平时，保护电路50通过输出抑制来停止逆变器装置2的动作 信号到栅极驱动电路51，但是此时确定直流电压的上升是暂时的，并且没有误差输出信号从误差信号发生器55输出到逆变器装置2的外部。同时， 在逆变器装置2暂时停止时直流电压进一步上升，直流电压检测值超过第一直流电压电平的情况下，确定需要对逆变器装置2进行保护， 输出信号输出到逆变器装置2的外部。