Microgrid´s operation-management containing distributed generation system

As an effective way of power industry´s sustainable development, microgrid technology provides flexible and high efficiency platform for distributed generation and renewable energy generation´s integration and utilization. And research of its operation-control and management-modes has been a key part. In this paper, on the basis of summarizing microgrid´s development status all over the world, according to the differences and relations between microgrid and large power system, and considering two operating modes of microgrid, the key issues of microgrid operation-management are studied. It is pointed out that microgrid´s stable operation and optimal management depend on advanced unit-level control technology and system-level integration control technology, among which the dispatch of distributed energy storage and design of dynamic microgrid should be paid more attention.