Optimized Islanding of Distribution System Based on Node Simplification Strategy
Abstract:This paper studies the optimized islanding of distribution system with distributed generation (DG) in order to develop the full potential of DG and improve the power supply reliability of distribution system.According to the importance and controllability of the load as well as the tree structure of distribution network,simplification strategy of distribution network node was proposed.On the basic islanding model,island search correction model and islanding scheme correction principle were proposed based on node simplification strategy.Meanwhile,in view of the problems of genetic algorithm application to islanding,including redundant coding,large amount of invalid code and vulnerability to local optimum,it puts forward the optimized islanding method based on the improved genetic algorithm.The simulation results on IEEE69 node distribution network demonstrate the effectiveness of the proposed model and algorithm.
distribution systemislandingdistributed generationnode simplification strategygenetic algorithm