Multi-objective planning with distributed power distribution network considering influence of harmonic indicators

Distributed generation has significant impacts on power flow calculation and power quality management of distribution network, therefore, distributed generation planning has become an issue in research now. Distributed generation has the ability to assist management of power distribution harmonic, but management effect is closely related to the access of distributed generation. A method about multi-objective access of distributed generation planning is proposed in this paper. First of all, the power loss and node harmonic impedance matrix should be analyzed after the access of distributed generation; then the multi-objective optimization problem, with the goal of the least net loss and the highest harmonic management index, is taken as the satisfaction of optimization results, which is de-pending on the establishment of the membership function; finally, the improved crow search algorithm is used to solve this problem. The effectiveness of proposed method is verified by simulated analysis which is carried on IEEE 33 nodes power distribution network. © 2020, Solar Energy Periodical Office Co., Ltd. All right reserved.