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

Reactive power optimization method for power distribution network

An optimization method and technology of distribution network, applied in reactive power compensation, reactive power adjustment/elimination/compensation, photovoltaic power generation, etc., can solve problems such as reducing voltage quality

Pending Publication Date: 2020-08-28
河北水利电力学院
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The grid-connection of large-scale distributed power generation will inevitably change the power flow distribution of the distribution network and change the reactive power flow in the power grid. If a node has insufficient or excess reactive power, the voltage quality will be reduced.

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 power distribution network
  • Reactive power optimization method for power distribution network
  • Reactive power optimization method for power distribution network

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0010] See figure 1 , an embodiment of the present invention provides a reactive power optimization method for a distribution network, comprising the following steps:

[0011] S1, establish a multi-objective reactive power optimization model with the highest investment benefit of distributed power generation, the smallest network active power loss and the smallest node voltage deviation;

[0012] S2. Using a kriging model global optimization algorithm to solve the reactive power optimization model.

[0013] In step S1, establishing the reactive power optimization model of the distributed power di...

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 reactive power optimization method for a power distribution network. The reactive power optimization method comprises the steps of establishing a multi-objective reactive power optimization model with the highest distributed power supply investment benefit, the minimum network active loss and the minimum node voltage deviation; and solving the reactive power optimization model by adopting a kriging model global optimization algorithm. By utilizing the reactive power optimization method for the power distribution network provided by the invention, reactive power optimization can be carried out on the power distribution network containing a DG power distribution network, and multi-objective reactive power optimization of the power distribution network is realized.

Description

technical field [0001] The invention relates to the technical field of power supply, in particular to a reactive power optimization method for a distribution network. Background technique [0002] The grid-connection of large-scale distributed generation (DG) complicates the structure of the distribution network. The reactive power balance of the distribution network is very important to ensure the power quality. The grid-connection of large-scale distributed power generation will inevitably change the power flow distribution of the distribution network, and change the reactive power flow in the power grid. If a node has insufficient reactive power or excess reactive power, the voltage quality will be reduced. DGs connected to the grid through inverters, such as direct-drive wind turbines and photovoltaic systems, can independently adjust the active power and reactive power of the grid-connected power. The reactive power optimization control of distribution network contain...

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 Applications(China)
IPC IPC(8): H02J3/18H02J3/32H02J3/38
CPCH02J3/1864H02J3/32H02J3/381H02J2203/20H02J2300/24H02J2300/28Y02E10/56Y02E40/30
Inventor 石佩玉张红星路文梅田晓军彭程
Owner 河北水利电力学院
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