Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

An Improved Harmony Search Algorithm for Reactive Power Optimization of Complex Distribution Networks

A technology of search algorithm and optimization method, applied in reactive power compensation, reactive power adjustment/elimination/compensation, calculation, etc., to achieve the effect of increasing power cost, slow solution speed, and strong practicability

Active Publication Date: 2022-03-18
CHINA ELECTRIC POWER RES INST +2
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The reactive power optimization method of an improved harmony search algorithm for complex distribution networks proposed by the present invention aims to solve a large number of scenarios and calculation results that appear during the operation of the harmony search algorithm, build a harmony memory data warehouse, and use Hierarchical clustering algorithm guides the evolution of harmonic vectors, improves computing utilization and algorithm optimization capabilities, and more quickly and effectively solves reactive power optimization problems in large-scale distribution networks aimed at reducing network losses and voltage deviations, and promotes The development of cutting-edge new technologies in the distribution network has greatly improved the analysis level of distribution network operation, and provided stronger, longer-term and deeper support for power grid production, operation and management from the perspective of distribution network planning, design, and regulation and operation.

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
  • An Improved Harmony Search Algorithm for Reactive Power Optimization of Complex Distribution Networks
  • An Improved Harmony Search Algorithm for Reactive Power Optimization of Complex Distribution Networks
  • An Improved Harmony Search Algorithm for Reactive Power Optimization of Complex Distribution Networks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0035] In order to make the objects, technical solutions and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are intended to be utilized to illustrate the invention and are not intended to limit the invention.

[0036] In this implementation case, such as Figure 1-2 Indicated.

[0037] Step 1: The establishment of the distribution network of the distribution network of the smallest network loss, the maximum voltage deviation, the power flow, node voltage, line transmission power constraint, ULTC gear, capacitor capacity, etc., the model expression is:

[0038]

[0039] In f LOSS For the work network loss target function, F SV For node voltage deviation target functions, λ 1 Λ 2 For weight coefficients; V i , V j The voltage amplitude of nodes I, J; G ij , B ij Field and imaginary part of the line IJ, θ ij...

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 an improved reactive power optimization method of a complex distribution network based on an improved harmony search algorithm. The method includes: establishing a reactive power optimization model of a distribution network; establishing a harmony memory data warehouse; initializing a harmony vector; calculating each The fitness function value of the harmony vector; update the harmony memory data warehouse; perform hierarchical clustering on the harmony memory data warehouse to obtain each cluster. The technical solution provided by the invention integrates all the scenes that appear in the historical calculation to construct the harmony memory data warehouse, and uses the hierarchical clustering thought to guide and update the acoustic vector to increase the utilization of calculation, reduce the total amount of calculation and improve the optimization ability effect.

Description

Technical field [0001] The present invention relates to the field of operation technology of distribution network, and in particular to a complex distribution network reactive optimization method of an improved and sound search algorithm. Background technique [0002] Reactive optimization can improve the voltage quality, reduce network loss, which is a nonlinear planning problem with reactive compensation or adjustment equipment. The traditional voltage reactive optimization has the following main problems: due to the grading management of the grid, there is a problem of reactive power repeatability, and due to the cumbersome operation, it has not only increased electricity cost, but also the multi-level equipment investment is low, comprehensive The effect is poor; in addition, the traditional reactive optimization method is often functional, and when processing the large-scale distribution network, it is often slow and the convergence is poor. The distribution network is more ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H02J3/18G06Q50/06
CPCH02J3/00H02J3/18G06Q50/06H02J2203/20Y02E40/30Y04S10/50
Inventor 叶学顺盛万兴刘科研孟晓丽贾东梨胡丽娟何开元刁赢龙唐建岗董伟杰李雅洁
Owner CHINA ELECTRIC POWER RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com