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

Method for regulating static reactive compensator of power transmission system

A technology for static reactive power compensation and power transmission system, which is applied in flexible AC power transmission systems, reactive power adjustment/elimination/compensation, etc. problem, to reduce mutual influence and suppress power oscillation

Active Publication Date: 2008-10-01
CHINA ELECTRIC POWER RES INST +1
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The purpose of the present invention is to propose a static var compensator adjustment method for a power transmission system, which is used to overcome the large mutual influence between the voltage regulator and the auxiliary controller in the prior art when they jointly control and adjust the SVC. It is not conducive to simultaneously realize the problem of controlling the steady-state reactive voltage and dynamic stability of the transmission system

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
  • Method for regulating static reactive compensator of power transmission system
  • Method for regulating static reactive compensator of power transmission system
  • Method for regulating static reactive compensator of power transmission system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] A detailed description will be given below in conjunction with the accompanying drawings and specific embodiments of the present invention.

[0035] The embodiments of the present invention specifically include the following steps:

[0036] Step 1. In order to realize the steady-state reactive voltage control, according to the current operating voltage of the transmission system, the reactive power output Q of the TCR branch is obtained 0 ,;

[0037] The step 1 specifically includes:

[0038] Step 11, calculating the average operating voltage of the power transmission system in a long operating period (for example, setting 20 minutes);

[0039] Step 12, judging whether the average operating voltage exceeds the qualified range of the voltage to be controlled, if so, calculating the voltage difference between the average operating voltage and the qualified range of the voltage to be controlled, otherwise, the process ends;

[0040] Step 13, determining the steady-state...

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 present invention relates to an application of the static reactive compensator, concretely presents a method for regulating the static reactive compensator used by the power transmission system. The method comprises the following procedures: regulating the reactive power output Q0 of the TCR branch line according the current operation voltage of the power transmission system, regulating the reactive power output delta Q of the TCR branch line according to the signal reflecting the oscillating mode of the power transmission system, inputting the total reactive power outputting signal which is obtained after the overlapping of the reactive power output Q0 and the reactive power output delta Q into a trigger pulse circuit, and realizing the regulation to the SVC through the regulation to the trigger pulse circuit. The method according to the invention realizes the combination control and regulation to the stable reactive voltage and static stability of the power transmission system, and reduces the interrelationship caused by the combination SVC control and regulation by the traditional voltage regulation strategy and auxiliary control strategy. Not only that the stable voltage of the power transmission system and the reactive power output are in the qualified operation range is realized, but also the power oscillation of the power transmission system is effectively inhibited.

Description

technical field [0001] The invention relates to parallel reactive power compensation technology, in particular to an adjustment method for a static reactive power compensator used in a power transmission system. Background technique [0002] In the power transmission system, the use of parallel reactive power compensation technology not only improves the voltage support, but also controls the voltage of the power transmission system to operate within an appropriate range. dynamic stability. [0003] SVC (Static Var Compensator) is a parallel static var power generator or absorber, through the control and adjustment of SVC to achieve adjustable reactive power output, thereby suppressing the power oscillation of the transmission system and improving the power transmission system The voltage is stable to ensure the safe and stable operation of the power transmission system. [0004] Such as figure 1 As shown, the SVC includes a TCR branch and an LC filter branch, wherein the...

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
CPCY02E40/12Y02E40/10
Inventor 武守远汤海雁赵刚李长宇
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