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1. 发明公开

EP2632011A1 METHOD FOR IMPLEMENTING ON/OFF-GRID DUAL-MODE OPERATION OF BIDIRECTIONAL CONVERTER IN MICRO POWER GRID 审中-公开
标题翻译：方法的用于实现双向转换器的ON / OFF GRID DOUBLE模式操作在笼子微电流
公开(公告)号：EP2632011A1
公开(公告)日：2013-08-28
申请号：EP11863961.6
申请日：2011-12-14
申请人： Henan Electric Power Corporation Electric Power Science Research Institute , Beijing Soaring Electric Technology Co. Ltd. , State Grid Corporation of China
发明人： LI, Zhaohui , WANG, Jing , YU, Xiaopeng , YANG, Haijing , WANG, Yang , LIU, Wei , LIU, Bo , YANG, Baosheng
IPC分类号： H02J3/38
CPC分类号： H02J3/383 , H02J3/386 , H02J3/387 , H02J7/34 , H02J9/06 , H02J2003/388 , Y02B10/72 , Y02B90/14 , Y02E10/563 , Y02E10/566 , Y02E10/763
摘要： The present invention provides a method for realizing on/off-grid dual-mode operation of a bidirectional converter in a micro power grid, wherein an on/off-grid controller in the micro power grid detects if the large power grid loses power or the power supply is resumed, instructions of "prepare to go off-grid", "go off-grid", "prepare to go on-grid", or "go on-grid" are sent to the bidirectional converter in an interface form of two-bit binary code, meanwhile the on/off-grid controller communicates with the micro power grid control system, and the micro power grid control system sends instruction signal of "charge/discharge power" to make the bidirectional converter perform a corresponding operation. When the large power grid loses power, the bidirectional converter will immediately transfer from the on-grid operation state to the off-grid operation state and switch to the operating mode of voltage source. Without additional investment on facility, this method solves the problem that the energy storage system and photovoltaic on-grid inverter can not work after the large power grid loses power, and the problem that it's difficult to set up a micro power grid system, and meanwhile it realizes a fast and seamless conversion between off-grid operation and on-grid operation in the micro power grid control.
摘要翻译：本发明提供了一种用于实现上的双向转换器的开/关栅双模式操作的微电网，在微电网worin开/关栅控制器检测，如果大电网松散功率或供电恢复中，“准备去离网”，“走离网”，指示“准备去网”或“去网”发送到双向转换器中的接口形式两比特的二进制码，同时开/关栅控制器与所述微电网控制系统进行通信，并且所述微电网控制系统发出“充电/放电功率”的指令信号，以使所述双向转换器执行相应的操作。当大电网松散功率时，双向转换器将立即从并网operationState转移到离网operationState并切换到电压源的运行模式。如果没有对工厂追加投资，这种方法可以解决问题，做了储能系统和光伏并网逆变器不能大功率无网电后工作和问题，也很难建立一个微电网系统，同时它实现离网之间和在栅操作操作在微电网控制快速和无缝的转换。

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