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

Novel dynamic TSC (thyristor switched capacitor) and SVG (static var generator) hybrid reactive compensation device and method

A hybrid reactive power compensation and dynamic technology, applied in reactive power compensation, reactive power adjustment/elimination/compensation, circuit devices, etc., can solve problems such as inability to meet the needs of large-capacity reactive power compensation, inability to respond dynamically, and insufficient capacity , to achieve the effect of improving flicker ability, suppressing voltage fluctuation and flicker, and prolonging service life

Inactive Publication Date: 2015-04-29
LINGBAO JINYUAN ZHAOHUI COPPER
View PDF6 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are basically two compensation methods for reactive power compensation used by various manufacturers for low voltage: one is fixed capacitor compensation device, the defect of this design is that it cannot respond dynamically, and there are situations of over-compensation or under-compensation; the other is a separate SVG compensate
Although the SVG compensation alone can respond quickly and dynamically, its insufficient capacity is also its biggest problem. Due to the small capacity, it cannot meet the needs of large-capacity reactive power compensation.

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
  • Novel dynamic TSC (thyristor switched capacitor) and SVG (static var generator) hybrid reactive compensation device and method
  • Novel dynamic TSC (thyristor switched capacitor) and SVG (static var generator) hybrid reactive compensation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Such as figure 1 As shown, a new type of dynamic TSC+SVG hybrid reactive power compensation device includes an SVG controller, an SVG power unit and a TSC branch. The SVG power unit includes a circuit breaker L, a current sampling unit M, a reactor L and an IGBT module, one end of the circuit breaker L is connected to the primary end of the power grid CT, and the other end is connected to the input end of the IGBT module through the current sampling unit M and the reactor L in turn, and the output end of the current sampling unit M is connected to the control of the IGBT module The signal input terminals are respectively connected to the output terminals of the SVG controller; the TSC branch circuit includes a plurality of TSC branch circuits, and the multiple TSC branch circuits are connected to the primary end of the power grid CT through the knife switch K1; the TSC branch circuit The routing TSC capacitor C is sequentially connected to the reactor L1, the thyristor ...

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 novel dynamic TSC (thyristor switched capacitor) and SVG (static var generator) hybrid reactive compensation device and method. The device comprises an SVG controller, an SVG power unit and TSC branches, wherein the SVG power unit comprises a breaker, a current sampling unit, an electric reactor and an IGBT (insulated gate bipolar transistor) module. The SVG controller is used for calculating reactive power demanded by a system; voltage fluctuation and flicker are inhibited in time due to the characteristic of high dynamic response speed of an SVG, and after a load is stabilized, the TSC branches are put into use to reduce reactive power provided by the SVG; after the load is shut off, excessive reactive power is quickly absorbed through dynamic response of the SVG, and then the TSC branches are cut off step by step. The characteristic of high dynamic response speed of the SVG can be used to inhibit the voltage fluctuation and flicker, and meanwhile, the defect of insufficient SVG capacity can be overcome; and meanwhile, the SVG works in a low load state, the service life of the SVG is prolonged, accurate compensation can be realized, and the inhibition capacity of voltage fluctuation and flicker is greatly improved.

Description

technical field [0001] The invention relates to a reactive power compensation device, in particular to a novel dynamic TSC+SVG hybrid reactive power compensation device and method. Background technique [0002] At present, there are basically two compensation methods for reactive power compensation used by various manufacturers for low voltage: one is fixed capacitor compensation device, the defect of this design is that it cannot respond dynamically, and there are situations of over-compensation or under-compensation; the other is a separate SVG compensate. Although the SVG compensation alone can respond quickly and dynamically, its insufficient capacity is also its biggest problem. Due to its small capacity, it cannot meet the needs of large-capacity reactive power compensation. Contents of the invention [0003] The purpose of the present invention is to provide a new dynamic TSC+SVG hybrid reactive power compensation device and method, which can suppress voltage ...

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): H02J3/16H02J3/18
CPCH02J3/1821Y02E40/10Y02E40/30
Inventor 叶永乐武明伟张育智王怀生李项虎乔翠杰许海敏王漫丽杨江波何新萍
Owner LINGBAO JINYUAN ZHAOHUI COPPER
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