Abstract：According to the decentralization and intermittent characteristics of distributed generation, as well asdifferent levels of load, the collaborative control strategy is developed between various distributed generations to protect the micro-grid, which is operating in island mode, safe and stable. In this article, in order to improve the reliability of the micro-grid, the master-slave control is adopted to control the micro-grid. When micro-grid is operating in island mode, the source-load balancing strategy ensures that the important load is uninterrupted running; secondly, the source-load balancing strategy will ensure less power outage as far as possible if micro-source can make it. The simulation model is established by using Matlab. Simulation analysis of switching load is carried out in the micro-grid model running in island mode, therefore, it proves that the control strategy under low voltage micro-grid in island mode is reliable and effective.
2018, Vol. 19 
