Two-stage multi-target addressing method for UPFC (unified power flow controller)

A power flow controller and multi-objective technology, applied in the direction of instruments, AC network circuits, data processing applications, etc., can solve the problems of single evaluation target, reduce the calculation scale, etc., and achieve the effect of reducing the calculation scale and good scalability

Inactive Publication Date: 2017-10-20
JIANGSU ELECTRIC POWER CO +3
View PDF6 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the invention is to address the shortcomings of the above-mentioned background technology, provide a two-stage multi-objective site selection method for a unified power flow controller, comprehensively eval

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
  • Two-stage multi-target addressing method for UPFC (unified power flow controller)
  • Two-stage multi-target addressing method for UPFC (unified power flow controller)
  • Two-stage multi-target addressing method for UPFC (unified power flow controller)

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The technical solution of the invention will be described in detail below in conjunction with the accompanying drawings.

[0039] The two-stage multi-objective site selection method of the unified power flow controller disclosed by the present invention is as follows: figure 1 As shown, the site selection of UPFC is carried out in two stages. In the first stage, considering the development of the power grid, comprehensively analyzing the current load level of the power grid and the predicted load level in the future, the comprehensive load rate of each branch of the power grid is evaluated; from the perspective of energy entropy, based on the power flow entropy of each branch On the basis of the above two indicators, the weight of the two indicators is determined by the analytic hierarchy process, and each branch is scored, and the candidate branch set is selected. In the second stage, the investment and operation costs of configuring UPFC and other possible power grid...

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 two-stage multi-target addressing method for a UPFC (unified power flow controller), and belongs to the technical field of operation and control of power systems. The method achieves the addressing of the UPFC at two stages based on an analytic hierarchy process, and comprises the steps: estimating the risk of each branch circuit through a branch circuit comprehensive load rate and the comprehensive vulnerability from the angle of system safety and stability, scoring each branch circuit, and preliminarily screening out an alternative branch circuit set of the UPFC; calculating the investment ratio of a UPFC and power grid construction replacement alternative scheme, the operation benefits of the UPFC, the control sensitivity and the damping gradient of the system after the UPFC is installed from the economic benefits and the safety benefits brought by the UPFC, obtaining the comprehensive score of each branch through combining with the scores of the alternative branch circuits at the first stage, and giving a recommended installation site of the UPFC. The method achieves the complete evaluation of the indexes, reduces the calculation scale through a stage dividing method, and can provide instructive advices for the addressing of the UPFC for a power grid planning worker.

Description

technical field [0001] The invention discloses a two-stage multi-objective site selection method for a unified power flow controller, which belongs to the technical field of power system operation and control. Background technique [0002] With the development of economy and technology, problems such as strengthening interconnection between power system regions, gradually increasing transmission voltage levels, nonlinear loads and high-precision electrical equipment have increasingly high requirements for power quality, and traditional power technologies are no longer sufficient. To solve the above problems, the increasingly perfect high-power flexible AC transmission technology provides a feasible solution for these problems. [0003] The concept of unified power flow controller (Unified Power Flow Controller, UPFC) was first proposed by Dr. L. Gyugyi of Westinghouse Technology Center in 1991. UPFC is a typical representative of the third-generation Flexible Alternative Cu...

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): H02J3/00G06Q10/04G06Q50/06
CPCG06Q10/04G06Q50/06H02J3/00H02J2203/20
Inventor 张潮吉宏邵雨薇俞春华凌建高山黄学良陈咏吴勇金振强庞文亮韩鸣
Owner JIANGSU ELECTRIC POWER CO
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