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UHV DC converter valve operation synthesis test device

A UHV DC and synthetic test technology, applied in circuit breaker testing and other directions, can solve problems such as lack of analysis methods and test devices, large gap in test levels, insufficient research and development capabilities and high-power test capabilities, and achieve good economy , the effect of low control difficulty

Inactive Publication Date: 2017-10-10
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

my country's high-power power electronics test technology started late, and the research lacked effective analysis methods and test devices, resulting in insufficient technology research and development capabilities and high-power test capabilities in this field in my country, and a large gap with foreign countries' test levels

Method used

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  • UHV DC converter valve operation synthesis test device
  • UHV DC converter valve operation synthesis test device
  • UHV DC converter valve operation synthesis test device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Such as figure 1 As shown, a UHV DC converter valve operation synthesis test device includes a 12-pulse converter circuit 1 connected to each other, a high voltage circuit 3 and a high current circuit 2, and the high voltage circuit 3 Provide reverse recovery voltage and forward voltage for the valve to be tested, the high current circuit 2 provides a large current for the valve to be tested, and the 12-pulse converter circuit 1 provides the required high voltage for the valve to be tested voltage, fault overcurrent and DC intermittent current.

[0025] The 12-pulse converter circuit 1 is composed of two 6-pulse rectifier bridges in series, which is the same as the converter unit used in the UHV DC transmission project. Each 6-pulse rectifier bridge is connected to a group of transformers, one of which is One group is a Y / Y connection transformer, and the other group is a Y / Δ connection transformer. The valve to be tested is installed on the bridge arm of the rectifier...

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PUM

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Abstract

The invention relates to an operation synthesis test device for an UHV DC converter valve, which includes a 12-pulse converter circuit, a high-voltage circuit and a high-current circuit connected to each other in pairs, and the high-voltage circuit is a valve to be tested Provide reverse recovery voltage and forward voltage, the large current circuit provides a large current for the valve to be tested, and the 12-pulse converter circuit provides the required high voltage, fault overcurrent and DC intermittent current. Compared with the prior art, the invention has the advantages of good equivalence, wide application range, good economy and high test precision.

Description

technical field [0001] The invention relates to a test technology for an ultra-high voltage direct current converter valve, in particular to an operation synthesis test device for an ultra-high voltage direct current converter valve. Background technique [0002] The distribution of energy resources and electricity loads in my country is extremely unbalanced, and the reverse allocation of energy resources and electricity loads in the east and west determines the necessity of optimizing the allocation of primary energy resources on a large scale in my country. Due to its technical characteristics, DC transmission is especially suitable for large-capacity and long-distance transmission, so the construction of DC transmission projects is very conducive to the optimal allocation of resources. With the development of national networking and west-to-east power transmission, ultra-high voltage direct current transmission projects and direct current back-to-back connection projects ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/327
Inventor 吴振跃鲁成栋肖登明谭东现邓云坤
Owner SHANGHAI JIAOTONG UNIV
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