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

Inductance integrated hybrid railway power flow controller

A power flow controller, integrated technology, applied in the direction of circuit devices, AC network circuits, electrical components, etc., can solve the problems of large footprint, limited promotion, high investment costs, etc., to reduce installation difficulty and investment costs, improve The effect of integration

Active Publication Date: 2015-03-04
HUNAN UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the static railway power conditioner (hereinafter referred to as RPC) proposed by Japanese scholars has attracted widespread attention due to its excellent compensation performance, but it has not achieved large-scale industrial application due to its high investment cost.
In addition, a conventional RPC needs to be connected in series with a coupled inductor to realize its compensation function. The high-voltage reactor is expensive and occupies a large area, which is not conducive to the integrated installation of the system in traction substations with extremely limited space, which further limits promotion of the 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
  • Inductance integrated hybrid railway power flow controller
  • Inductance integrated hybrid railway power flow controller
  • Inductance integrated hybrid railway power flow controller

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawings and examples.

[0027] Such as figure 1 As shown, the present invention includes a three-phase V / v transformer 1, a step-down transformer 2, an α-phase LC coupling compensation arm 4 (the integrated inductance winding 3 serves as the first inductance and the first capacitor C α connected in series), the β-phase LC coupling compensation arm (the integrated inductance winding 5 serves as the second inductance and the second capacitor C β series connection) 6, back-to-back converter 7. The V / v traction transformer 1 consists of two single-phase transformers T α , T β Composition, single-phase transformer T α The primary side of the primary side is connected to the power grid, the secondary side power supply winding is connected to the traction network and the α-phase LC coupling compensation arm 4, and the secondary side integrated inductance winding 3 is composed of two coi...

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 an inductance integrated hybrid railway power flow controller. A public supply network is changed into both alpha and beta phases of a railway traction network by a three-phase V / v transformer and the alpha and beta phases are respectively connected with alpha-phase and beta-phase LC (Inductance / Capacitance) coupling compensation arms; inductances of the alpha-phase and beta-phase LC coupling compensation arms are integrated into a secondary side of the V / v traction transformer by a non-orthogonal decoupling technology to form alpha-phase and beta-phase integrated inductive windings; the alpha-phase and beta-phase LC coupling compensation arms are respectively connected with two output ends of a back-to-back converter by first and second step-down transformers. The inductance integrated hybrid railway power flow controller adopts the non-orthogonal decoupling technology to integrate the inductances of the coupling arms into the transformer windings and the occupied area of a high-speed railway active compensation system can be reduced; due to adoption of the technical scheme of combining active and passive systems, the capacity of the converter is greatly reduced. The inductance integrated hybrid railway power flow controller is an electrical railway electric energy quality control system with high cost performance.

Description

technical field [0001] The invention relates to the field of power quality of an electrified railway power supply system, in particular to an inductance-integrated hybrid railway power flow controller. Background technique [0002] With the rapid development of electrified railways in my country, power quality problems such as negative sequence, reactive power and harmonics faced by traction power supply systems have become increasingly prominent, reducing the power quality of public power grids and affecting their safe and stable operation. In order to improve the power supply quality of the electrified railway power supply system and improve the safety and stability of the public power grid, engineers and technicians have made various attempts. Commutation power supply is a common high-voltage incoming line method adopted by traction substations in my country to solve the negative sequence problem. However, for traction substations in relatively fragile areas of the power ...

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): H02J3/01H02J3/18
CPCH02J3/01H02J3/1878Y02E40/30Y02E40/40
Inventor 胡斯佳李勇张志文陈晓婷彭衍建罗隆福
Owner HUNAN UNIV
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