公开(公告)号：EP3700040B1

公开(公告)日：2024-08-14

申请号：EP19158755.9

申请日：2019-02-22

IPC: H02J3/06 ,  H02J13/00

CPC classification number: H02J3/06 ,  H02J13/00006 ,  H02J2310/1020200101 ,  H02J13/00002 ,  Y02E60/00 ,  Y04S40/12 ,  Y02P80/14

公开(公告)号：EP2912741B1

公开(公告)日：2018-09-12

申请号：EP13780133.8

申请日：2013-10-22

Applicant: SMA Solar Technology AG

Inventor： ALLERT, Claus ,  BÜLO, Thorsten ,  HOPF, Markus

IPC: H02J3/34 ,  H02M7/44 ,  H02J9/06 ,  H02J3/26 ,  H02J3/38

CPC classification number: H02M7/44 ,  H02J3/26 ,  H02J3/34 ,  H02J3/383 ,  H02J9/062 ,  H02J2003/388 ,  Y02B10/14 ,  Y02B10/72 ,  Y02E10/563 ,  Y02E10/566 ,  Y02E40/50 ,  Y02P80/14 ,  Y10T307/305

公开(公告)号：EP3245705B1

公开(公告)日：2018-08-29

申请号：EP16738948.5

申请日：2016-06-29

Applicant: Dynapower Company LLC

Inventor： SOMANI, Apurva ,  PALOMBINI, John, C.

IPC: H02J3/38

CPC classification number: H02J3/381 ,  H02J2003/388 ,  Y02P80/14 ,  Y02P80/152

Abstract: A power system having a plurality of power converters coupled together at a point of common coupling (PCC). The power converters are coupled to a load and provide a combined power converter output to the load. A switch is coupled in series between the PCC and an external grid. When the switch is closed, the power system is in a grid-tied configuration and when the switch is open, the power system is in a microgrid configuration. A control system coupled to the power converters enables the switch to open and close in response to a signal received from one or more sensors monitoring the external grid, enables the power converters to operate in a current control mode when the switch is closed, and transitions the power converters from grid-tied mode to microgrid mode and synchronize the power converters such that the converters share the load.

公开(公告)号：EP3340429A1

公开(公告)日：2018-06-27

申请号：EP16206794.6

申请日：2016-12-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： ZHU, Yang ,  KIM, Minho

IPC: H02J9/06 ,  G06F1/30

CPC classification number: H02J3/006 ,  H02J1/10 ,  H02J9/06 ,  H02J2009/068 ,  Y02P80/14

Abstract: A switching arrangement for switching between two inputs is disclosed herein. The switching arrangement include a first semiconductor switch, a first mechanical switch, a second mechanical switch, the second mechanical switch being connectable to the main or backup input, and a controller being coupled to the first semiconductor switch, the first mechanical switch and the second mechanical switch; wherein the controller is configured to generate control drive signals for the first semiconductor switch, the first mechanical switch and the second mechanical switch, the control drive signals being configured to switch off the first mechanical switch at zero voltage, and switch the second mechanical switch from the main input to the backup input or from the backup input to the main input at zero current, wherein the second mechanical switch is switched to the backup input or the main input while the first mechanical switch is off.

公开(公告)号：EP3331116A1

公开(公告)日：2018-06-06

申请号：EP15882908.5

申请日：2015-08-26

Applicant: Incheon University Industry Academic Cooperation Foundation

Inventor： KIM, Hak-Man ,  YOO, Hyeong Jun

IPC: H02J3/06 ,  H02J3/38

CPC classification number: H02J3/06 ,  G05F1/70 ,  H02J3/02 ,  H02J3/38 ,  H02J3/382 ,  Y02P80/14

Abstract: The present invention relates to a voltage source converter based DC connection method and a control method for implementing a system for maintaining respective different frequencies (multi-frequencies) by reflecting load quality levels of respective microgrids when multiple stand-alone microgrids are connected to each other in which voltage source converters (VSCs) installed at connection points of the microgrids for effectively controlling respective microgrids having different frequency control ranges present an effective control method based on a concept using normalizing frequencies of unit microgrids to be similarly applied in an islanded operation mode of multiple grid-connected microgrids as well as multiple stand-alone microgrids to avoid the same frequency criterion and enable an economic operation to which the load power quality level of the microgrid is reflected, thereby minimizing a transient to stably operate a microgrid system.

公开(公告)号：EP2833504B1

公开(公告)日：2018-05-02

申请号：EP14170354.6

申请日：2014-05-28

Applicant: EHWA Technologies Information Co., Ltd.

Inventor： Chung, Sung Won ,  Lee, Kyung Suk ,  Yum, Dong Hun

IPC: H02J9/06 ,  H02J3/32

CPC classification number: H02J3/00 ,  H02J3/32 ,  H02J9/062 ,  Y02P80/14 ,  Y10T307/344

Abstract: Disclosed herein are the energy storage system (100) of an Uninterruptible Power Supply (UPS) equipped with the battery (30) and a method of driving the same. The energy storage system (100) includes a commercial power source unit (20) configured to supply a first power source to a load (10), the battery (30) configured to supply a second power source to the load (10), a power failure monitoring unit (41) configured to monitor a power failure state in the commercial power source unit (20), a charging/discharging determination unit (42) configured to determine a charging state of the battery (30), and a power source control unit (43) configured to control the commercial power source unit (20) and the battery (30) in response to output of the power failure monitoring unit (41) or the charging/discharging determination unit (42) so that the first power source or the second power source is supplied to the load (10). A power reservation ratio for the use of power can be increased by reducing power used during daytime.

公开(公告)号：EP3188338A1

公开(公告)日：2017-07-05

申请号：EP16177178.7

申请日：2016-06-30

Applicant: Sungrow Power Supply Co., Ltd.

Inventor： Jiang, Tao ,  Yu, Yong ,  Zhang, Kaihuan

IPC: H02J3/40

CPC classification number: H02J3/42 ,  H02J3/40 ,  H02J7/0068 ,  Y02P80/14

Abstract: A grid-connected control method based on a virtual synchronizer is provided. The method includes: detecting whether a first deviation between an output voltage of an inverter and a voltage of a grid exceeds a first set voltage threshold, and adjusting a set output voltage of the inverter if the first deviation exceeds the first set voltage threshold, so that the first deviation falls within the first set voltage threshold; detecting whether a second deviation between an output frequency of the inverter and a frequency of the grid exceeds a first set frequency threshold, and adjusting a set output frequency of the inverter if the second deviation exceeds the first set frequency threshold, so that the second deviation falls within the first set frequency threshold; and controlling the inverter to connect to the grid. A grid-connected control device based on a virtual synchronizer is further provided.

Abstract translation: 提供了基于虚拟同步器的并网控制方法。 该方法包括：检测逆变器的输出电压与电网电压之间的第一偏差是否超过第一设定电压阈值，并且如果第一偏差超过第一设定电压阈值，则调整逆变器的设定输出电压，如此 第一偏差落入第一设定电压阈值内; 检测逆变器的输出频率和电网频率之间的第二偏差是否超过第一设定频率阈值，并且如果第二偏差超过第一设定频率阈值，则调节逆变器的设定输出频率，使得第二偏差 落入第一设定频率阈值内; 并控制逆变器连接到电网。 还提供了一种基于虚拟同步器的并网控制装置。

公开(公告)号：EP3151356A1

公开(公告)日：2017-04-05

申请号：EP16185819.6

申请日：2016-08-26

Applicant: ABB Schweiz AG

Inventor： KONDABATHINI, Anil K. ,  WANG, Zhenyuan ,  PAN, Jiuping ,  LIANG, Jiaqi

IPC: H02J1/00 ,  H02J3/36 ,  H02J3/38 ,  H02J11/00

CPC classification number: H02J1/10 ,  H02J1/00 ,  H02J1/08 ,  H02J3/36 ,  H02J3/382 ,  H02J3/386 ,  H02J4/00 ,  H02J11/00 ,  Y02E10/763 ,  Y02E60/60 ,  Y02P80/14 ,  Y02P80/152

Abstract: A power distribution system for off-shore natural resource platforms includes an off-shore medium voltage direct current (MVDC) power bus. The MVDC power bus includes multiple power bus segments, each of which may be connected to one or more other power bus segments via a corresponding circuit breaker. Each power bus segment may also be electrically coupled to an off-shore renewable energy source, such as a wind farm, and/or an off-shore drilling platform. The off-shore drilling platforms may include local power distribution systems electrically connected to a corresponding power bus segment via a circuit breaker to receive power from the MVDC power bus and supply power to local equipment of the off-shore drilling platform.

Abstract translation: 离岸自然资源平台配电系统包括离岸中压直流（MVDC）电力总线。 MVDC电源总线包括多个电力总线段，每个段可以经由相应的断路器连接到一个或多个其他电力总线段。 每个电力总线段还可以电耦合到离岸可再生能源，例如风力发电场和/或离岸钻井平台。 离岸钻井平台可以包括经由断路器电连接到对应的电力总线段的本地配电系统，以从MVDC电力总线接收电力并向离岸钻井平台的本地设备供电。

公开(公告)号：EP2719977B1

公开(公告)日：2017-03-29

申请号：EP13188189.8

申请日：2013-10-10

Applicant: Schmid, Arnold

Inventor： Arnold SCHMID ,  Dr. Edgar SCHMIEDER

IPC: F25D17/02 ,  F25B30/06 ,  F24D19/10 ,  F24D11/00 ,  F24D11/02 ,  G05B15/02

CPC classification number: F24D11/001 ,  F24D11/0207 ,  F24D19/1045 ,  F24D19/1048 ,  F24D2200/12 ,  F24D2200/13 ,  F24D2200/32 ,  F24D2220/0292 ,  F24D2220/10 ,  F25B2400/24 ,  F25D17/02 ,  Y02B10/70 ,  Y02B30/125 ,  Y02E20/14 ,  Y02P80/14

公开(公告)号：EP3139485A1

公开(公告)日：2017-03-08

申请号：EP16177770.1

申请日：2016-07-04

Applicant: Schneider Electric Industries SAS

Inventor： DENTELLA, Alain ,  PENKOV, Delcho

IPC: H02P1/42

CPC classification number: H02P1/16 ,  H02P1/423 ,  Y02P80/14 ,  Y02P80/152

Abstract: Système de démarrage d'un moteur électrique (M) alimenté par un réseau électrique (1), le système de démarrage comprenant un circuit électronique de commande (7) et un interrupteur électronique (10) de commutation pour piloter une phase du moteur (M), l'interrupteur électronique (10) étant commandé par le circuit de commande (7). Le système de démarrage comporte un capteur (3) destiné à fournir un signal analogique (4) représentatif de la dérivée d'un courant circulant dans la phase du moteur (M), une carte de détection (5) comprenant des moyens de transformation dudit signal analogique (4) en un signal binaire (6) représentatif des changements de signe dudit signal analogique, et comprenant des moyens de transmission dudit signal binaire au circuit de commande (7), de façon à optimiser la commande de l'interrupteur électronique (10).

Abstract translation: 一种由电网（1）提供的用于电动机（M）的起动器系统，所述起动器系统包括用于控制所述电动机（M）的一相的电子控制电路（7）和电子开关（10），所述电子开关 （10）由控制电路（7）控制。 起动器系统包括传感器（3），用于传递代表流过电动机（M）的相的电流的导数的模拟信号（4）;检测板（5），包括用于将所述模拟 信号（4）转换为表示所述模拟信号的符号变化的二进制信号（6），并且包括用于将所述二进制信号发送到控制电路（7）的装置，以便优化电子开关的控制 （10）。