Power distribution network reconstruction method of particle swarm algorithm considering number of loops of IEEE node system

A technology of distribution network reconfiguration and particle swarm algorithm, which is applied in the field of power system, can solve the problem that distribution network reconfiguration methods cannot take into account the search efficiency and the optimal target, and achieve the effect of ensuring the optimal target and taking into account the search efficiency

Pending Publication Date: 2021-12-03
国网黑龙江省电力有限公司七台河供电公司 +1
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Problems solved by technology

[0003] The technical problem to be solved in the present invention is the problem that the distribution network reconfiguration method based on the optimization algorithm cannot take into account the search efficiency and the optimal target; and then provide a distribution network reconfiguration of the particle swarm algorithm considering the number of IEEE node system loops method

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  • Power distribution network reconstruction method of particle swarm algorithm considering number of loops of IEEE node system
  • Power distribution network reconstruction method of particle swarm algorithm considering number of loops of IEEE node system
  • Power distribution network reconstruction method of particle swarm algorithm considering number of loops of IEEE node system

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[0032] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings and through specific embodiments:

[0033] Considering the number of IEEE node system loops, the distribution network reconfiguration method based on particle swarm optimization algorithm includes the following steps:

[0034] Based on the constraints of distribution network reconfiguration, with the minimum network loss of the restructured distribution network as the objective function, the distribution network reconfiguration is performed based on the particle swarm optimization algorithm; the distribution network loss target is as follows:

[0035]

[0036] Among them, L is the total number of distribution network branches, k i Is the state variable of branch i, the value is 0 or 1, 0 means the branch is open, 1 means the branch is closed, R i is the resistance of branch i; P i , Q i are the active power and reactive power of branch i resp...

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Abstract

The invention discloses a power distribution network reconstruction method of a particle swarm algorithm considering the number of loops of an IEEE node system, and belongs to the field of power systems. The invention aims to solve the problem that: a power distribution network reconstruction method based on an optimization algorithm cannot give consideration to search efficiency and target optimization. The power distribution network reconstruction method based on the particle swarm algorithm comprises the following steps: step 1, initializing parameters; step 2, randomly generating an initial group; step 3, evaluating each particle, and calculating the power flow of the power system; step 4, updating the particles; step 5, updating pbest; step 6, updating gbest; and step 7, judging whether t reaches the maximum number of iterations T or not, if so, outputting the gbest, ending the program, otherwise, turning to the step 4. The method is mainly adopted to reconstruct the power distribution network.

Description

technical field [0001] The invention belongs to the field of power systems, and in particular relates to a distribution network reconfiguration method. Background technique [0002] Distribution network reconfiguration is an important research content of distribution management system. It forms a new network structure that satisfies the optimization goal through the change of switch status, and makes the network load distribution more reasonable. Traditional network reconfiguration is mostly based on the minimum active network loss. objective, and consider more reliability factors, distribution network reconfiguration is a multi-objective, multi-constraint complex nonlinear programming problem, in order to improve the reliability and economy of distribution network operation, the traditional methods of network reconfiguration are as follows: Although the traditional mathematical optimization method can obtain the global optimal solution that does not depend on the initial st...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/18G06F30/25G06N3/00G06F111/04G06F111/08
CPCG06F30/18G06F30/25G06N3/006G06F2111/04G06F2111/08
Inventor 王迎春侯艳权王义春李维赵俊涛王文琦
Owner 国网黑龙江省电力有限公司七台河供电公司
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