Reactive power optimization method for regional power grid

An optimization method and technology for regional power grids, applied in reactive power compensation, reactive power adjustment/elimination/compensation, etc.

Active Publication Date: 2015-08-12
WENZHOU ELECTRIC POWER DESIGN
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the existing technology, the purpose of the present invention is to provide a reactive power optimization method for r...

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
  • Reactive power optimization method for regional power grid
  • Reactive power optimization method for regional power grid
  • Reactive power optimization method for regional power grid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] refer to figure 1 As shown, a method for reactive power optimization of a regional power grid in this embodiment is characterized in that it includes the following steps:

[0045] Step 1, stratify and partition the power grids and power stations in each region;

[0046] Step 2. Use the improved genetic algorithm to obtain the following objective function, and at the same time use the algorithm to find the solution of the objective function, so that the overall network loss of the power grid is minimized:

[0047] min v = k e Σ i = 0 n t T i P Loss i ( x i ) ,

[0048] Step 33, div...

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 discloses a reactive power optimization method for a regional power grid, and the method comprises the following steps: 1, layering and dividing power grids and transformer stations of all regions; 2, employing an improved genetic algorithm to obtain the following target functions, employing the genetic algorithm to obtain the solutions of the target functions, and enabling the overall transmission losses of the power grids to be minimum; 3, dividing the peaks and valleys of power utilization according to the local conditions of power utilization; and 4, dividing the use priority of control equipment according to the specific peak and valley conditions obtained at the step 3. According to the invention, the target function is obtained through the improved genetic algorithm, and the minimum value is obtained, thereby effectively enabling the overall transmission losses of the power grids to be minimum. Moreover, the method is simple in calculation, and can avoid a condition that the reactive power in the power grid is reduced or excessive more effectively through the dividing of the peaks and valleys and the limiting of the priority of control equipment.

Description

technical field [0001] The invention relates to a smart grid, and more specifically relates to a reactive power optimization method for a regional power grid. Background technique [0002] The power transmitted in the grid consists of two parts: active power and reactive power. Reactive power cannot do useful work, but it is indispensable in electromagnetic exchange and causes losses at the same time. Insufficiency and excess of reactive power have a significant impact on voltage quality and power loss. In my country's current power grid, inductive nonlinear loads such as motors [1] occupy a considerable proportion, and these loads need to absorb a large amount of reactive power. The distribution of energy and load centers is uneven, and the common phenomenon of long-distance transmission of reactive power is common. If the reactive power cannot be compensated locally, it will cause additional power loss in the grid and a large voltage drop at both ends of the line, resul...

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): H02J3/18
CPCY02E40/30
Inventor 赵璞高策周英庆林枫陈哲王文香朱海立张清周林明潮杜王毅
Owner WENZHOU ELECTRIC POWER DESIGN
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