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A method of reconfiguration of distribution network with dg based on mutation firefly algorithm

A firefly algorithm, a technology of distribution network reconfiguration, is applied in the field of distribution network reconfiguration, which can solve problems such as reducing convergence ability and unfavorable solution reconfiguration, and achieves the effects of reducing network loss, improving voltage quality, and increasing population diversity.

Active Publication Date: 2021-09-21
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

However, the above algorithm reduces the convergence ability under the influence of multidimensional variables, which is not conducive to solving the reconstruction problem

Method used

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  • A method of reconfiguration of distribution network with dg based on mutation firefly algorithm
  • A method of reconfiguration of distribution network with dg based on mutation firefly algorithm
  • A method of reconfiguration of distribution network with dg based on mutation firefly algorithm

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Embodiment 1

[0100] like figure 1 As shown, a method of reconfiguration of distribution network with DG based on mutation firefly algorithm includes the following steps:

[0101] Step1. Establish a distribution network reconfiguration mathematical model; including network loss before reconstruction, network loss after reconstruction, reconstructed network loss influence, DG network loss influence, and finally obtain the objective function;

[0102] Step2. Construct the variation firefly algorithm;

[0103] Step3. Combining the objective function obtained in Step1 and the mutated firefly algorithm in Step2, apply the mutated firefly algorithm to the reconstruction of distribution network including DG, and obtain the optimal switch combination and corresponding DG capacity for distribution network reconstruction .

[0104] Among them, the specific process of establishing the distribution network reconfiguration mathematical model is as follows:

[0105] Traditional distribution network re...

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Abstract

The invention belongs to the technical field of distribution network reconfiguration, and specifically relates to a method for reconfiguring a distribution network containing DG based on a variant firefly algorithm, comprising the following steps: Step 1. Establishing a distribution network reconfiguration mathematical model; including network loss before reconfiguration , network loss after reconstruction, the influence of reconstructed network loss, and the influence of DG network loss, and finally obtain the objective function; Step2, construct the variation firefly algorithm; Step3, combine the objective function obtained in Step1 and the variation firefly algorithm in Step2 , the variation firefly algorithm is applied to the reconstruction of the distribution network with DG, and the optimal switch combination and the corresponding DG capacity of the distribution network reconstruction are obtained. This method applies a novel mutated firefly algorithm to the process of distribution network reconstruction under the condition that the distribution network is connected to different DG capacities. The mutated firefly algorithm improves the efficiency of the algorithm by introducing a mutation mechanism to the basic firefly algorithm. Search efficiency and performance.

Description

technical field [0001] The invention belongs to the technical field of distribution network reconfiguration, and in particular relates to a DG-containing distribution network reconfiguration method based on a variant firefly algorithm. Background technique [0002] With the improvement of the distribution network automation level, the complexity of its planning and operation has become increasingly high. In order to ensure the safe and stable operation of the distribution network, the investment in power distribution equipment continues to increase, resulting in an increase in distribution network loss year by year. The data shows that 10-13% of network losses in the power system occur on the distribution side, which poses a challenge to the goal of energy conservation and at the same time reduces the voltage quality of the power distribution system. [0003] Distribution network reconfiguration is an important means to optimize the distribution network to reduce network los...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/04G06Q50/06G06N3/00
CPCG06N3/006G06Q10/04G06Q50/06Y02E40/70Y04S10/50
Inventor 董朕黎燕明胡骁朱耀添范焯荧梁嘉伟
Owner GUANGDONG POWER GRID CO LTD
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