摘要
介绍了微电网概念的出现背景、研究现状和国家电网公司河南微电网示范系统的总体框架。微电网系统控制器在该试点工程中承担微电网和大电网的联结控制作用,结合相应的二次设备完成微电网并网到离网,离网到并网的平滑过渡。该装置主要完成的功能包括:孤岛检测功能、自动同期并网功能和保护测控功能。总结提炼了该装置的实现原理及相关判据。最后,在依托该项目的成果的基础上,提出了今后的研究重点和难点。
This paper describes the emergence background of the concept of micro grid, current status and the overall framework of Henan micro-grid demonstration system of State Grid Corporation. Micro-grid system controller connects large grid with the micro grid and controls them in this pilot project, achieving the smooth transition from grid-connected to off-grid and from off-grid to grid-connected with the corresponding secondary equipment. The device mainly completed the following functions including island detection, automatic synchronization parallel and protection and monitoring functions. This paper summarizes the implementation principle of the device and related criteria. Finally, based on the results of the project, the focus and difficulties of the future research are proposed.
出处
《电力系统保护与控制》
EI
CSCD
北大核心
2011年第19期126-129,140,共5页
Power System Protection and Control
关键词
微电网
分布式电源
孤岛检测
计划孤岛
非计划孤岛
micro-grid
distributed generation
islanding detection
intentional islanding
non-intentional islanding
