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A synchronization device and test system for non-periodic trigger test of DC power transmission converter valve

A non-periodic triggering, DC transmission technology, applied in the direction of testing dielectric strength, etc., can solve the problem of inaccurate and scattered synchronization signal acquisition, and achieve the effect of accurate and reliable trigger conduction

Active Publication Date: 2019-12-10
XJ ELECTRIC +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a non-periodic trigger test synchronization device for DC power transmission converter valves to solve the problem of inaccurate and scattered acquisition of existing synchronization signals

Method used

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  • A synchronization device and test system for non-periodic trigger test of DC power transmission converter valve
  • A synchronization device and test system for non-periodic trigger test of DC power transmission converter valve
  • A synchronization device and test system for non-periodic trigger test of DC power transmission converter valve

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Embodiment Construction

[0028] Embodiment of aperiodic trigger test system for DC transmission converter valve

[0029] Such as figure 2 As shown, the output voltage of the impulse voltage generator is connected to the non-periodical triggering test circuit of the DC transmission converter valve. The test circuit is connected with the tested DC transmission converter valve Vt in series. In addition, other circuit structures may also be involved in the circuit , since these circuit structures have nothing to do with the inventive point of the present invention, they will not be described in detail here.

[0030] This embodiment provides a non-periodic trigger test system for a direct current transmission converter valve, which is used to obtain a synchronization signal required for the test, and to perform trigger control of the converter valve according to the obtained synchronization signal. Therefore, if figure 2As shown, the test system mainly includes two parts, namely the synchronization dev...

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Abstract

The invention relates to a DC power transmission converter valve aperiodic triggering test synchronization device and a DC power transmission converter valve aperiodic triggering test system. The DC power transmission converter valve aperiodic triggering test system comprises a synchronization device and a converter valve control system, wherein the synchronization device comprises two breakdown modules which are serially connected in a DC power transmission converter valve aperiodic triggering test loop, both ends of the second breakdown module are connected in parallel with resistors, the first breakdown module is broken down when a voltage reaches a breakdown voltage of the first breakdown module, a generated current passes through the resistors, an optical signal is generated when voltages of the resistors reach a breakdown voltage of the second breakdown module, and the converter valve control system correspondingly controls a tested converter valve according to the generated signal. The synchronization device can meet the synchronous signal acquisition requirements, and provides an accurate synchronization signal to the subsequent converter valve control system, thereby triggering and conducting the tested converter valve at an accurate moment, greatly improving the test efficiency and reliability, and effectively solving the problem of disperse and inaccurate triggeringand conduction moments of a converter valve aperiodic triggering test thyristor.

Description

technical field [0001] The invention relates to a synchronization device and a test system for a non-periodic triggering test of a direct current transmission converter valve, belonging to the field of insulation type tests of a direct current transmission converter valve, specifically belonging to the technical field of non-periodic triggering tests of a direct current transmission converter valve. Background technique [0002] During the implementation of the strategic plans of "West-to-East Electricity Transmission", "North-South Mutual Supply" and "National Networking", HVDC is characterized by its long transmission distance, large transmission capacity, strong system stability, fast adjustment and low investment. These advantages have become the best technical solution for long-distance and large-capacity energy transmission. With the rapid development of ultra-high voltage and ultra-high voltage direct current transmission projects, there is an urgent need for research ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
CPCG01R31/12
Inventor 胡四全常忠廷胡永雄徐涛邱育林王铎
Owner XJ ELECTRIC
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