In order to manage the operation of distribution generators(DGs)better

strengthen the interactive ability of the distribution network and improve the security and economy of distribution network after the grid-connected operation of DGs

a set of cluster automatic monitoring system for the regional DGs is developed. The structure design and function system are proposed for the cluster monitoring system and the key technologies of the system are designed in detail such as the cluster classification

multi-objective optimization and cluster control. A multi-objective optimization model for the DGs cluster control is then built and a second-order cone based solving strategy is given. The grid structure is constructed for an actual 10 kV feeder in Zhejiang Hangwan Industrial Park based on real-time digital simulator(RTDS). On the basis of the grid structure

the system running conditions under two different time scales are tested and the results verify the validity and reliability of the system.