The Comprehensive Optimization Research In Distribution Network With Distributed Generation

Distributed generation(DG)as a supplement to the traditional power supply,with its small footprint,flexible and efficient power generation,green and other advantages in the power system plays an important role.DG access network when the location,capacity and distribution network topology affect the distribution network operation and distribution of the trend,Therefore,it is of great practical significance to study the optimal configuration of DG in distribution network and the reconstruction of DG with distribution network.This paper first briefly introduces several common DGs.and the influence of the access capacity,position and power factor on the network loss is analyzed in detail by a simple distribution network model.The influence rule of the DG,and then the DG Several Mathematical Models in Computation.And DG as PQ model into the distribution network of the power flow calculation.Secondly,the basic principles,steps and advantages and disadvantages of the harmony search algorithm are analyzed.And the improvement of the shortcomings is as follows: the chaos map is used to make the harmony vector evenly distributed and the step size is adjusted adaptively and the advantages of the reverse learning strategy are merged,and the search ability and mining ability.For the non-schedulable DG,In this paper,the improved configuration of DG in the distribution network is studied by improving the harmony search algorithm.And the optimal position and capacity of the distributed power distribution network are optimized by the minimum value of the network loss as the objective function,and the effectiveness of the algorithm is verified.For the scheduling DG,this paper on the DG injection power and distribution network reconstruction of a comprehensive optimization study.Based on the network loss and the node voltage migration rate,the switching state of the network and the method of DG output are adopted.Improved Harmonic Search Algorithm for Network Architecture and DG Injection Power Integrated Optimization.In the 33-node example,the simulation of the distribution distribution network with DG is carried out,it is proved that the optimization of distribution network reconstruction and DG injection power can optimize the damage reduction effect and voltage of distribution network.