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1. 发明公开

EP3407453A1 STABILISIERUNG EINES ELEKTRISCHEN STROMNETZES 有权
公开(公告)号：EP3407453A1
公开(公告)日：2018-11-28
申请号：EP17172185.5
申请日：2017-05-22
申请人： Siemens Aktiengesellschaft
发明人： WEGEHAUPT, Klemens
IPC分类号： H02J3/04 , H02J3/06 , H02J3/12 , H02J3/38 , H02J3/14 , H02J3/00 , H02J13/00
CPC分类号： H02J3/04 , H02J3/06 , H02J3/12 , H02J3/14 , H02J3/38 , H02J13/00 , H02J2003/001 , H02J2003/388
摘要： Beschrieben wird ein Verfahren und eine Vorrichtung zum Stabilisieren eines Stromnetzes (110). Das Verfahren weist auf Festlegen eines ersten Bereiches (242) für eine elektrische Größe (U, f) des Stromnetzes (110) um einen Sollwert; Festlegen eines zweiten Bereiches (244) für die elektrische Größe, wobei der zweite Bereich größer ist als der erste Bereich und kleiner ist als ein dritter Bereich (246); Erfassen der elektrischen Größe; und
Vergleichen der elektrischen Größe mit dem ersten und zweiten Bereich. Ferner weist das Verfahren auf:
(a) wenn die elektrische Größe innerhalb des ersten Bereichs liegt, Charakterisieren des Zustands des Stromnetzes als ein Normalzustand (S0);
(b) wenn die elektrische Größe außerhalb des ersten und innerhalb des zweiten Bereichs liegt und sich das Stromnetz in einem ersten oder zweiten Betriebszustand befindet, Aufrufen einer ersten Prozedur (P1) zum Stabilisieren des Stromnetzes, bei welcher ein erster Zähler inkrementiert; und
(c) wenn die elektrische Größe außerhalb des zweiten Bereichs liegt, Aufrufen einer zweiten Prozedur (P2) zum Stabilisieren des Stromnetzes, bei welcher ein zweiter Zähler inkrementiert wird.

2. 发明授权

EP2232663B1 SAFETY MECHANISMS, WAKE UP AND SHUTDOWN METHODS IN DISTRIBUTED POWER INSTALLATIONS 有权转让
公开(公告)号：EP2232663B1
公开(公告)日：2018-11-07
申请号：EP08857835.6
申请日：2008-12-05
申请人： Solaredge Technologies Ltd.
发明人： ADEST, Meir , SELLA, Guy , HANDELSMAN, Lior , GALIN, Yoav , FISHELOV, Amir , GAZIT, Meir , BINDER, Yaron
IPC分类号： H02J1/10 , H02J3/38 , H02J3/46 , H02J13/00 , H02H7/122 , H04B3/54 , H01L31/02 , G01S3/786
CPC分类号： H02M7/44 , G01S3/7861 , H01L31/02021 , H02J1/102 , H02J3/383 , H02J3/385 , H02J3/386 , H02J3/46 , H02J7/35 , H02J13/0003 , H02J2003/388 , H02M3/1582 , H02M7/493 , H02M2001/0077 , H04B3/548 , Y02E10/52 , Y02E10/563 , Y02E10/566 , Y02E10/58 , Y02E10/763 , Y10T307/50 , Y10T307/685 , Y10T307/707 , Y10T307/724 , Y10T307/729
摘要： A distributed power system including multiple DC power sources and multiple power modules. The power modules include inputs coupled respectively to the DC power sources and outputs coupled in series to form a serial string. An inverter is coupled to the serial string. The inverter converts power input from the serial string to output power. A signaling mechanism between the inverter and the power module is adapted for controlling operation of the power modules.

3. 发明公开

EP3360221A1 MULTIPLE ENERGY STORAGE DEVICES FOR INVERTER POWER CONTROL SYSTEMS IN AN ENERGY GENERATION SYSTEM 审中-公开
公开(公告)号：EP3360221A1
公开(公告)日：2018-08-15
申请号：EP16754637.3
申请日：2016-08-12
申请人： SolarCity Corporation
发明人： NARLA, Sandeep , LUTKUS, Andrew Russell
IPC分类号： H02J3/00 , H02M7/00 , H02J3/32 , H02J3/38 , H02M7/537
CPC分类号： H02J3/385 , H02J3/00 , H02J3/32 , H02J3/383 , H02J7/0068 , H02J7/007 , H02J7/35 , H02J2003/388 , H02M7/00 , H02M7/44 , H02M7/537 , H02M2001/0067 , H02M2001/007 , H02M2001/008 , Y02E10/563 , Y02E10/566 , Y02E10/58 , Y02E70/30
摘要： An energy generation system includes a plurality of energy generation devices for generating DC power, a plurality of energy storage devices for storing the generated DC power and discharging stored DC power, a plurality of single-phase inverters coupled to respective energy generation devices and energy storage devices. Each single-phase inverter of the plurality of single-phase inverters is configured to convert generated DC power or stored DC power to AC power so that the converted AC power of each single-phase inverter is offset by a phase from one another.

4. 发明公开

EP3336998A1 NETZERSATZANLAGE, UMRICHTER FÜR EINE NETZERSATZANLAGE SOWIE VERFAHREN ZUM BETREIBEN EINER NETZERSATZANLAGE 有权
公开(公告)号：EP3336998A1
公开(公告)日：2018-06-20
申请号：EP17192293.3
申请日：2017-09-21
申请人： innogy SE
发明人： Wilch, Michael
IPC分类号： H02J3/32 , H02J3/38 , H02J3/46
CPC分类号： H02J3/32 , H02J3/38 , H02J3/46 , H02J2003/001 , H02J2003/388
摘要： Netzersatzanlage 2 mit einem Anschluss 10 an ein elektrisches Energieversorgungsnetz 12, einem Energiespeicher 6, und einem Umrichter 4, der zwischen dem Anschluss 10 und dem Energiespeicher 6 angeordnet ist. Ein Betrieb von Einspeisern im Falle eines Inselnetzes ist dadurch möglich, dass der Umrichter 4 über den Anschluss 10 eine zumindest teilweise vom Ladezustand des Energiespeichers 6 abhängige Netzfrequenz in das Energieversorgungsnetz 8 einprägt.

5. 发明公开

EP3309922A4 POWER STORAGE SYSTEM, POWER STORAGE DEVICE, AND OPERATION METHOD FOR POWER STORAGE DEVICE 审中-公开
公开(公告)号：EP3309922A4
公开(公告)日：2018-05-30
申请号：EP16807090
申请日：2016-06-01
申请人： PANASONIC IP MAN CO LTD
发明人： YOSITAKE AKIRA , YOSHIMATSU TAKAHIRO , YUASA HIROAKI , TERAMOTO YUICHIRO , TOYONAGA TOMOHIKO , MATSUDA YASUHIRO
IPC分类号： H02J3/38 , H01M10/44 , H02J3/32 , H02J3/46 , H02J7/00 , H02J9/06
CPC分类号： H01M10/44 , H02J3/32 , H02J3/381 , H02J3/46 , H02J7/00 , H02J9/062 , H02J2003/388
摘要： An object of the present invention is to provide a power storage system, power storage device, and operation method for the power storage device allowing single-phase three-wire power to be supplied by operating a plurality of power storage devices in parallel with each other and also allowing the capacity of the single-phase three-wire power to be increased easily with a simple system configuration. In the power storage system, power storage device, and operation method for the power storage device according to the present invention, a master device (21) is configured to apply an output voltage during an autonomous operation to a primary winding (51) of a transformer (5), and a secondary winding (52) thereof is connected to a single-phase three-wire autonomous power line (87). The master device (21) is configured to perform voltage control of controlling the output voltage during the autonomous operation toward a target voltage. Slave devices (22, 23) each have an output connected to a first voltage line and a second voltage line of the autonomous power line (87) and perform current control of controlling their output current toward a target current during the autonomous operation.

6. 发明公开

EP3316437A1 PROVIDING AUXILIARY POWER WHEN A HIGH-VOLTAGE LINK IS NONFUNCTIONAL 审中-公开
标题翻译：在高压连接不正常时提供辅助电源
公开(公告)号：EP3316437A1
公开(公告)日：2018-05-02
申请号：EP16382488.1
申请日：2016-10-26
申请人： MHI Vestas Offshore Wind A/S
发明人： ABEYASEKERA, Tusitha , AÑO VILLALBA, Salvador , BERNAL PÉREZ, Soledad , BLASCO-GIMÉNEZ, Ramón
IPC分类号： H02J3/38 , F03D9/25
CPC分类号： H02J3/386 , F03D9/257 , H02J2003/388 , Y02E10/725 , Y02E10/763
摘要： Embodiments herein describe operating a first wind turbine using an auxiliary control system when a high-voltage link coupling a wind park to a grid is not functioning. When using the auxiliary control system, the first wind turbine provides power to a local AC grid which can be used to power auxiliary system in a second wind turbine while the second wind turbine is shutdown. However, when the high-voltage link is functional, the first and second wind turbines provide power to the high-voltage link using a primary control system.
摘要翻译：这里的实施例描述了当将风电场耦合到电网的高压链路不起作用时，使用辅助控制系统来操作第一风力涡轮机。当使用辅助控制系统时，第一风力涡轮机向本地交流电网提供电力，当第二风力涡轮机关闭时，本地交流电网可用于为第二风力涡轮机中的辅助系统供电。但是，当高压链路功能正常时，第一和第二风力涡轮机使用主控制系统向高压链路供电。

7. 发明公开

EP3245705A1 ISLANDING A PLURALITY OF GRID TIED POWER CONVERTERS 有权
标题翻译：孤岛上的多个网格结功率转换器
公开(公告)号：EP3245705A1
公开(公告)日：2017-11-22
申请号：EP16738948.5
申请日：2016-06-29
申请人： Dynapower Company LLC
发明人： SOMANI, Apurva , PALOMBINI, John, C.
IPC分类号： H02J3/38
CPC分类号： H02J3/381 , H02J2003/388 , Y02P80/14 , Y02P80/152
摘要： 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.

8. 发明公开

EP3232529A1 POWER SUPPLY ARRANGEMENT 审中-公开
标题翻译：电源安排
公开(公告)号：EP3232529A1
公开(公告)日：2017-10-18
申请号：EP16165380.3
申请日：2016-04-14
申请人： DET International Holding Limited
发明人： WALLISER, Dietmar , SCHWEIZER, Jürgen , MENTELE, Michael
IPC分类号： H02J3/38
CPC分类号： H02J3/382 , H02J3/381 , H02J3/383 , H02J3/386 , H02J2003/388 , H02M7/44 , Y02E10/563
摘要： The present application relates to a power supply arrangement comprising a power source (11) and a switching arrangement (40). The switching arrangement (40) includes a switching block (41), wherein the switching block (41) includes a source interface (26) for connecting the power source (11), a load interface (22) for connecting a load (12) and a grid interface (23) for connecting a power grid (13). The switching arrangement (40) includes further a controller (19) for controlling the switching block (41) in dependency of the condition of the power source (11). The switching arrangement (40) is implemented as a unit separate from the power source (11). The power supply arrangement comprises further a monitoring device (29) for monitoring the condition of the power source (11).
摘要翻译：本申请涉及包括电源（11）和开关装置（40）的电源装置。开关装置（40）包括开关块（41），其中开关块（41）包括用于连接电源（11）的源接口（26），用于连接负载（12）的负载接口（22）和用于连接电网（13）的电网接口（23）。开关装置（40）还包括用于根据电源（11）的状态控制开关块（41）的控制器（19）。开关装置（40）被实现为与电源（11）分离的单元。该电源装置还包括用于监视电源（11）的状态的监视装置（29）。

9. 发明公开

EP3211743A1 ISLAND-TO-NETWORK SWITCHING METHOD 审中-公开
标题翻译：岛屿到网络切换方法
公开(公告)号：EP3211743A1
公开(公告)日：2017-08-30
申请号：EP15871856.9
申请日：2015-12-09
申请人： NR Electric Co., Ltd. , NR Engineering Co., Ltd
发明人： DONG, Yunlong , TIAN, Jie , HU, Zhaoqing , LI, Haiying , CAO, Dongming , LIU, Haibin , LU, Yu
IPC分类号： H02J3/36 , H02J3/38
CPC分类号： H02J3/36 , H02H7/1222 , H02J3/38 , H02J2003/388 , H03L7/08 , Y02E60/60
摘要： The present invention discloses a passive islanding to grid-connection switching method for a VSC HVDC transmission system. When the VSC HVDC transmission system in an island operation state, whether the VSC HVDC transmission system enters a grid-connection state is determined by detecting whether an overcurrent phenomenon has occurred in a converter valve-side three-phase alternating-current or a converter bridge arm current, and detecting a change status of an alternating-current side voltage. The system is controlled to switch from an island operation control mode to a grid-connection control mode. At a moment of switching, the online control mode is smoothly switched to by changing a power instruction and performing phase tracking on a current grid voltage, so that continuous operation of the system is maintained.
摘要翻译：本发明公开了一种用于VSC HVDC传输系统的被动孤岛 - 并网切换方法。当处于孤岛运行状态的VSC HVDC传输系统时，VSC HVDC传输系统是否进入并网状态通过检测转换器阀侧三相交流电流或转换器电桥中是否发生过电流现象来确定检测交流侧电压的变化状态。控制系统从岛运行控制模式切换到并网控制模式。在切换时，通过改变功率指令并对当前电网电压执行相位跟踪，在线控制模式被平稳切换，从而保持系统的连续操作。

10. 发明公开

EP3211741A1 METHOD FOR INHIBITING MULTIPLE CONVERTER STATIONS INTO PASSIVE CONTROL MODE IN ISLAND STATE 审中-公开
标题翻译：在岛状态下抑制多个变流站进入被动控制模式的方法
公开(公告)号：EP3211741A1
公开(公告)日：2017-08-30
申请号：EP15868517.2
申请日：2015-11-24
申请人： NR Electric Co., Ltd. , NR Engineering Co., Ltd
发明人： DONG, Yunlong , TIAN, Jie , CAO, Dongming , LI, Haiying , DING, Jiudong , HU, Zhaoqing , LI, Gang , LIU, Haibin , LU, Yu
IPC分类号： H02J3/00
CPC分类号： H02J3/46 , H02J1/10 , H02J3/00 , H02J3/005 , H02J3/36 , H02J3/38 , H02J2003/001 , H02J2003/388
摘要： The present invention provides a method for inhibiting multiple inverter stations from entering a passive control mode in an island state. The method includes dividing inverter stations into groups in advance; a principle for group division is dividing inverter stations whose alternating-current sides are connected to each other through an alternating-current line in a normal running condition into a group; priorities of the inverter stations are preset in each group to tune relevant fixed values of the inverter stations for island detection; a tuning principle is that an inverter station with a higher priority has a more sensitive relevant fixed value, and an island state is more easily detected for the corresponding inverter station; an inverter station for which an island state is detected can enter a passive control mode only when all the other inverter stations with priorities higher than the priority of the inverter station in the group send enabling signals.
摘要翻译：本发明提供了一种用于抑制多个逆变站进入孤岛状态的被动控制模式的方法。该方法包括预先将逆变站分成组，分组原则是将正常运行状态下交流线路交流侧互相连接的逆变站分为一组，每组预置逆变站的优先级，以调谐逆变站的相关固定值进行岛屿检测; 调谐原则是优先级较高的逆变站具有更敏感的相关固定值，并且对于相应的逆变站更容易检测岛状态; 只有当所有其他优先级高于组内逆变站优先级的逆变站发送使能信号时，才能检测到岛状态的逆变站才能进入被动控制模式。

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