Single-wave fault current testing device of converter valve running test and testing method

A technology of fault current and operation test, which is applied in the direction of circuit breaker test, etc., can solve the problem of thyristor losing blocking ability, and achieve the effect of reliable test data

Active Publication Date: 2011-01-05
XIAN HIGH VOLTAGE APP RES INST CO LTD
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the operating condition of the DC converter station, flashover may occur due to the insulation damage of the converter valve or the thyristor of the valve group loses the blocking ability. Although these phenomena rarely occur, once they occur, the consequences will be extremely

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
  • Single-wave fault current testing device of converter valve running test and testing method
  • Single-wave fault current testing device of converter valve running test and testing method
  • Single-wave fault current testing device of converter valve running test and testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention is described in further detail below in conjunction with accompanying drawing:

[0024] Such as figure 1 As shown, the single-wave fault current test device for the converter valve operation test of the present invention includes a generator circuit, which is composed of a short-circuit generator G, a circuit breaker K1, a reactor L, a resistor R and a step-up transformer T The primary side is sequentially connected in series; the secondary side of the step-up transformer T is connected in parallel with the measured converter valve Vt, and the low potential end of the secondary side of the step-up transformer T is grounded; the measured converter valve Vt is also connected with a current source and a voltage source , and the measured converter valve Vt is respectively connected to the output terminals of the current source and the voltage source to form a loop. In a preferred embodiment of the present invention, the short-circuit generator used in...

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 single-wave fault current testing device of a converter valve running test and a testing method. The device comprises a generator loop, wherein the generator loop comprises a short-circuit generator, a circuit breaker, a reactor L, a resistor and a primary side of a step-up transformer, which are sequentially connected in series; the secondary side of the step-up transformer is connected with a tested converter valve in parallel, and a low-potential end of the secondary side of the step-up transformer is grounded; and the tested converter valve is also connected witha current source and a voltage source and respectively connected with the output ends of the current source and the voltage source to form a loop. The device is used for checking the converter valve as key equipment in a direct current transmission system, has the advantages of simple structure and easy realization, can be used for precisely detecting the test waveform of the converter valve and provides reliable test data for improving the property of the converter valve. The invention is suitable for tests of various converter valves connected with high-power thyristor devices in series andprovides powerful guarantee for the independent research and development of the converter valves.

Description

technical field [0001] The invention belongs to the technical field of high-voltage direct current transmission thyristor valves for power transmission systems, and relates to a fault current test method, in particular to a single-wave fault current test method for high-voltage direct current transmission thyristor valve operation tests. Background technique [0002] With the needs of the development of the power system, my country's high-voltage direct current transmission projects are developing rapidly. The core of the converter station of the direct current transmission project is the converter valve connected in series with high-power thyristor devices. The quality of this equipment directly affects the reliability of the power transmission and transformation system. The cost generally accounts for about 25% of the total project investment. Converter valve equipment needs to be localized, and having test methods is an important guarantee for independent research and deve...

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): G01R31/327
Inventor 郑军周会高许钒胡治龙刘朴黄熹东张长春
Owner XIAN HIGH VOLTAGE APP RES INST CO LTD
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