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Power distribution network reconstruction method based on fuzzy multi-target cooperative optimization

A technology for distribution network reconfiguration, coordination and optimization, applied in instrumentation, data processing applications, forecasting, etc., can solve problems such as difficulty in solving

Inactive Publication Date: 2016-11-16
NANJING INST OF TECH
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Problems solved by technology

[0003] Distribution network reconfiguration is a complex multi-objective nonlinear integer combination optimization problem, which is very difficult to solve

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  • Power distribution network reconstruction method based on fuzzy multi-target cooperative optimization
  • Power distribution network reconstruction method based on fuzzy multi-target cooperative optimization
  • Power distribution network reconstruction method based on fuzzy multi-target cooperative optimization

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Embodiment Construction

[0054] The invention establishes a distribution network reconfiguration multi-objective coordination optimization model with the minimum network loss, the minimum feeder load balance index and the minimum number of switch operations. The fuzzy function is introduced to fuzzify each target. According to the maximum and minimum rule of fuzzy set theory, the multi-objective optimization problem is transformed into a single-objective nonlinear programming problem, and the taboo algorithm is used to optimize and solve the distribution network reconfiguration model. For a 69-node distribution network system, four different optimization schemes are compared and analyzed, and the simulation results verify that the proposed model and solution method are correct and effective.

[0055] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more...

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Abstract

The present invention discloses a power distribution network reconstruction method based on fuzzy multi-target cooperative optimization. The method comprises the following steps of establishing a multi-target cooperative optimization model of the power distribution network reconstruction; carrying out the objective function fuzzy processing; transforming a fuzzy multi-target model into a single target model; adopting a tabu algorithm to solve a power distribution network reconstruction model. According to the present invention, a power distribution network reconstruction mathematical model for cooperatively optimizing multiple targets of enabling the network loss and the feeder line load balance index to be minimum and realizing the least switch operation times, is established, a fuzzy membership function is introduced to carry out the fuzzy processing on the targets, and according to the maxi-min rules of the fuzzy set theory, a multi-target optimization problem is transformed into the single target nonlinear planning problem; the tabu algorithm is used to optimize and solve the power distribution network reconstruction model, for a 69-node power distribution network system, four different optimization schemes are compared and analyzed, and the simulation results verify that the provided model and solution method are correct and effective.

Description

technical field [0001] The invention relates to a distribution network reconfiguration method based on fuzzy multi-objective coordination optimization, which belongs to the technical field of distribution automation. Background technique [0002] The distribution network has the characteristics of closed-loop design and open-loop operation. There are a large number of section switches and a small number of tie switches in the distribution line, so an optimal distribution network structure can be found by changing the opening and closing states of the section switches and tie switches to reduce the power loss of the distribution network , Improve the voltage distribution of the power distribution system, improve the ability to quickly restore power supply to the load, so as to realize the comprehensive improvement of economic benefits, power supply quality and power supply reliability. With the wave of smart grid construction in various countries in the world, smart distribu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06Y04S10/50
Inventor 杨志超陆文伟葛乐马寿虎陆文涛顾佳易王蒙
Owner NANJING INST OF TECH
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