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

Converter valve submodule automatic test system and thyristor test circuit thereof

An automatic test system, thyristor testing technology, applied in the direction of measuring electricity, measuring electrical variables, testing of single semiconductor devices, etc., can solve the problem of inability to bypass thyristor detection of sub-modules

Active Publication Date: 2014-03-19
XJ ELECTRIC
View PDF10 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an automatic test system for the sub-module of the flexible direct current transmission converter valve and its thyristor test circuit to solve the problem that the sub-module bypass thyristor cannot be detected in the prior art

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
  • Converter valve submodule automatic test system and thyristor test circuit thereof
  • Converter valve submodule automatic test system and thyristor test circuit thereof
  • Converter valve submodule automatic test system and thyristor test circuit thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0015] Example of test system

[0016] Such as figure 2 , 3 As shown, the flexible HVDC converter valve sub-module automatic test system includes a control system and a test circuit. The control system is used to connect the corresponding power line and communication line with the sub-module to be tested. The control system includes a background computer, which is used to release The test instructions and the control system belong to the prior art, and will not be introduced in detail here.

[0017] In order to test the thyristor, the test circuit includes a thyristor test circuit, the thyristor test circuit includes a direct current power supply DC, a current limiting resistor R, an energy storage capacitor C, a current limiting inductor L, a freewheeling diode D C And the terminal for connecting the sub-module of the converter valve, the DC power supply...

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 relates to a converter valve submodule automatic test system and a thyristor test circuit thereof. The converter valve submodule automatic test system comprises a control system and the thyristor test circuit. The thyristor test circuit comprises a direct current power source (DC), a current-limiting resistor (R), an energy-storage capacitor (C), a current-limiting inductor (L), a control switch (K), a fly-wheel diode (DC) and a wiring terminal for connecting converter valve submodules. The thyristor test circuit is capable of directly testing thyristors.

Description

technical field [0001] The invention relates to an automatic test system for a sub-module of a flexible DC transmission converter valve and a thyristor test circuit thereof. Background technique [0002] The topology of the main circuit of the multi-level VSC-HVDC flexible direct current transmission converter valve is formed by 6n sub-modules SM, and each bridge arm is composed of n sub-modules connected in series. Such as figure 1 The sub-module shown is a half-bridge sub-module, including two IGBTs, capacitors, thyristors, and bypass switches. Usually, a flexible HVDC converter valve project includes thousands of sub-modules. During the production of converter valves, an enterprise needs to conduct a comprehensive inspection of the performance of each sub-module. If it is manually tested, it needs to be wired and debugged separately, which is time-consuming and laborious. With automatic testing, the workload can be reduced, but the sub-module bypass thyristors cannot be...

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): G01R31/00G01R31/26
Inventor 刘刚姚钊夏克鹏王鸿飞孙健
Owner XJ ELECTRIC
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