Linearized power flow-based network reconstruction method for power distribution network

A network reconfiguration and distribution network technology, applied in the direction of AC network circuits, electrical components, circuit devices, etc., can solve problems such as difficult to obtain optimal solutions, achieve fast calculation speed, good convergence, and ensure optimality Effect

Active Publication Date: 2018-06-15
JILIN ELECTRIC POWER RES INST +2
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the commonly used distribution network reconfiguration methods include heuristic algorithms such as genetic algorithms, and obtain feasible solutions by searching all possible reconfigu

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Linearized power flow-based network reconstruction method for power distribution network
  • Linearized power flow-based network reconstruction method for power distribution network
  • Linearized power flow-based network reconstruction method for power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0062] A distribution network reconfiguration method based on linearized power flow proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0063] A distribution network network reconfiguration method based on linearized power flow proposed by the present invention is aimed at the radial operation of the distribution network and the network characteristics of three-phase imbalance. The overall process is as follows figure 1 shown, including the following steps:

[0064] (1) Establish a distribution network reconfiguration model, which is composed of objective functions and constraints; the specific steps are as follows:

[0065] (1-1) Determine the objective function of the distribution network reconfiguration model;

[0066] The goal of distribution network reconfiguration is generally chosen to minimize network loss, and the model objective function expression is as follows:

[0067...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a linearized power flow-based network reconstruction method for a power distribution network and belongs to the technical field of operation control of power systems. The methodcomprises the steps of firstly building a network reconstruction model, formed by an objective function and constraint conditions, of the power distribution network; transforming the objective function and the constraint conditions separately and transforming an original model into a mixed integer quadratic programming model; and solving the transformed model to obtain open and closed state variables of various branches and carrying out corresponding switching actions according to the solving result to achieve network reconstruction. The linearized power flow-based network reconstruction method is high in computation speed and good in convergence and is suitable for being applied to the scenes of real-time network reconstruction of the power distribution network.

Description

technical field [0001] The invention relates to a distribution network reconfiguration method based on linearized power flow, and belongs to the technical field of power system operation control. Background technique [0002] The distribution network is an important part of the power system. Compared with the transmission network operating in the ring network, although the distribution network has a loop tie line, the tie line is generally disconnected during operation, and its network operation structure is radial. . Therefore, in the distribution network, the change of network structure is the basis and important means for various distribution network applications. [0003] The network reconfiguration of the distribution network is a method to adjust the control network structure to optimize various distribution network operation indicators including the minimum network loss and load balance. It achieves specific goals through the opening and closing of branches in the ne...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H02J3/00
CPCH02J3/00H02J2203/20
Inventor 吴文传高长征张伯明王佳蕊杨越刘座铭李德鑫高松
Owner JILIN ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap