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A network reconfiguration method and system for urban distribution network

A network reconfiguration and distribution network technology, which is applied in data processing applications, instruments, artificial life, etc., can solve problems such as local convergence, long time consumption, and huge amount of calculation, so as to improve the quality of power supply voltage, reduce operating costs, optimize The effect of network loss

Active Publication Date: 2021-08-13
ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY
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Problems solved by technology

However, the current methods of urban distribution network reconfiguration take relatively little consideration of new energy sources and new load access.
At the same time, there are certain problems in the current urban distribution network reconstruction algorithm. For example, the particle swarm algorithm based on binary codes is easy to fall into local convergence when analyzing the particle swarm, and produces a large number of infeasible solutions. The calculation is huge and time-consuming. There are very large limitations, and it is difficult to cope with the increasingly complex urban distribution network

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  • A network reconfiguration method and system for urban distribution network
  • A network reconfiguration method and system for urban distribution network
  • A network reconfiguration method and system for urban distribution network

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Embodiment Construction

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0017] The embodiment of the present invention discloses a network reconfiguration method of an urban distribution network, which is proposed for a new scenario where large-scale distributed energy sources and charging stations are connected to the urban distribution network, taking into account operating costs, power supply reliability, and electric energy. Quality network reconfiguration method for urban distribution network multi-objective...

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Abstract

The invention discloses a network reconfiguration method and system of an urban distribution network. The method includes: establishing the multi-objective optimization function of the system's annual power shortage, the system's average power-off duration, the system's average power-off frequency, and the minimum network loss of the urban distribution network; determining the constraints of the multi-objective optimization function and each objective The weight of the optimization function; set the on-off initial value of the switch of each load node in the urban distribution network; according to the on-off initial value of the switch of each load node, multi-objective optimization function and constraint conditions, adopt the method based on decomposition and The multi-objective particle swarm optimization algorithm of differential evolution solves the multi-objective optimization function; according to the on-off of the switch of each load node in the urban distribution network corresponding to the solution of the weighted and minimum multi-objective optimization function, the urban distribution network network refactor. The invention can optimize the network loss of the urban distribution network containing the distributed power supply and the automobile charging station, reduce the operation cost, and improve the quality of the power supply voltage of the urban distribution network at the same time.

Description

technical field [0001] The invention relates to the technical field of distribution network planning, in particular to a network reconfiguration method and system of an urban distribution network. Background technique [0002] In recent years, with the rapid development of the urban economy, the demand for electric energy has been on the rise, the power load has increased year by year, and the structure of the urban distribution network has become increasingly complex, causing the network loss of the urban distribution network to increase year by year. At the same time, in recent years, the power generation of various energy sources in my country is far from meeting people's demand for electricity. The phenomenon of power cuts is becoming more and more obvious, and the contradiction between supply and demand is becoming more and more serious. The impact on urban economic development and people's quality of life is increasing year by year. In order to solve the above problems...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06Q10/06G06Q50/06G06N3/00
CPCG06N3/006G06Q10/06313G06Q50/06
Inventor 罗海荣焦龙田蓓杨雪红梁剑
Owner ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID NINGXIA ELECTRIC POWER COMPANY
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