多状态自适应微电网协调控制器的设计与开发

Design of Coordinated Controller for Micro-grid Based on Multi-Mode Self-adjustment Strategy

如何维持微电网在不同运行状态下安全稳定运行,是微电网协调控制的研究难点之一。采用微电网分层控制结构,提出了基于多状态自适应的协调控制策略;结合示范工程的建设要求,开发了可接入高渗透率风光微电网的协调控制器,可根据控制策略协调控制各微电源、储能设备和负荷单元,实现微电网在并网、孤岛、待机、停机等多种状态下平滑切换。编写了微电网元件模拟软件,对协调控制器进行了测试,验证了该控制器的实用性。

How to maintain the stability of a micro-grid under different operational conditions is one of the difficuhies of micro-grid coordinated vonh-ol. In the paper, a coordinated control strategy based on muhi-state self-adjustment was proposed for hierarchical control scheme of talc＇to-grids. For meeting the construction requirements of the demonstration project, a eoordinated controller for micro-grid which has high penetration of wind power and PV was developed. According to the operation status of a micro-grid, the DGs, energy storage and loads can be, co,ordinated to achieve smooth switching under different operation eonditions including gird-tied, islanding, standby and shutdown. Finally. simulation software was presented to test the controller. The results verified the practicality of the eontroller. This work is supported by National High Technology Researeh and Development Program of China （863 Program） （2012AA050217）.