For improving the visualization and intelligence level of the loop-closing analysis strategy and the dispatcher’ s correctness judgment on the closed-loop operation

the online real-time loop closing analysis decision system is designed and developed.The system is based on the graph and model integration technology of CIM/SVG to link the distribution data and integrate application

achieve main-distribution network integrated modeling by way of splitting and merging of model

determine the loop-closing path in accordance with the topology analysis of the main-distribution network integrated power supply path and the mesh equivalent method

perform the power calculation before and after the loop closing by the improved newton-raphson method

and calibrate and adjust the loop closing current so to ensure safety of the loop closing operation.Finally

the effectiveness and practic ability of the research results are verified by the practical application of the actual distribution network in Wuhu.