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Research on 10kV Distribution Network Reconfiguration Based Evolution Algorithm

Author: LiYingJun
Tutor: ZhangBingDa;ZuoLiXin
School: Tianjin University
Course: Electrical Engineering
Keywords: distribution network network reconfiguration power flow calculation evolutionary algorithm circle table
CLC: TM715
Type: Master's thesis
Year: 2010
Downloads: 26
Quote: 0
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Abstract


Distribution network is facing users directly, which is an important part of distribution automation system. Distribution networks are generally closed-loop design and open-loop operation. The system’s security and economy can be improved through the distribution network reconfiguration, which with high economic and social benefits.Distribution Network Reconfiguration is the multi-objective optimization problem in theory. Algorithms proposed previous have the defects of excess infeasible solutions and easy-to-local convergence when used in the actual distribution network reconfiguration. This paper presents an evolutionary algorithm based on the method of distribution network reconfiguration: a Circle Form is established based on the thought of search and degree; a branch exchange method is applied to the evolutionary algorithm, and the minimum loss is the fitness function of parent individual to choose; the maximum voltage drop is the fitness function of close the switch to choose; the minimum road loss is the fitness of open the switch to choose. Though this mutation method, radial distribution network is ensured; the generation of infeasible solutions is avoid, and the operational efficiency of distribution network reconfiguration is improved.In this paper, evolutionary algorithm is applied to 10kV distribution network as a practical example in JiNing District of Wulanchabu. The final results show that, compared with the basic genetic algorithm, search space has been reduced; operational efficiency has been increased, and become more suitable for reconstruction of distribution networks.

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CLC: > Industrial Technology > Electrotechnical > Transmission and distribution engineering, power network and power system > Theory and Analysis > Power system planning
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