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Reliability test platform for emission circuits of optical coupling module of converter valve and test method

A test platform and test method technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of high integration of processing accuracy, difficult assembly, poor reliability, etc., to reduce the risk of electric shock and improve the optical power. Efficiency, the effect of eliminating human error detection

Active Publication Date: 2017-05-10
GLOBAL ENERGY INTERCONNECTION RES INST CO LTD +3
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitation of module processing accuracy and the difficulty of assembly due to high integration, the optical transmission circuit of the optical coupling module often has problems of transmission signal distortion caused by low transmission power, short operating life and poor reliability.

Method used

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  • Reliability test platform for emission circuits of optical coupling module of converter valve and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] The invention has been successfully applied in many domestic UHV DC transmission projects. According to the size of the actual engineering quantity, construction period requirements and actual equipment conditions, the number of boards for each batch of coupling module optical power tests is reasonably configured. Usually, all The failure and screening test of the optical transmitter of the optical transceiver board can be carried out simultaneously with functional testing and visual inspection.

[0041] After adopting this method, after statistics, the unit has produced more than 600 optical coupling modules in total, and no one of the optical transceiver boards was found to be invalid in the engineering field test before it was put into operation after leaving the factory. Therefore, it is believed that the current method can ensure Reduce the failure rate to less than 0.025%.

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Abstract

The invention relates to a reliability test platform for emission circuits of an optical coupling module of a DC transmission converter valve and a test method. The test platform includes a power supply system, an optical coupling module online packaging platform and an optical power tester. The power supply system supplies power to all optical emission circuits on a fixed coupling module. The installation of the emission circuits of the optical coupling module is achieved on the online packaging platform. The optical power tester receives an optical signal sent by the coupling module through an optical fiber of 150 meters with an attenuation rate of less than or equal to 2db, and detects the emitted optical power. The optical coupling module is assembled onto an optical transceiver board card of a valve-based electronic device and then participates in the high-temperature and low-temperature environment screening test of the optical transceiver board card. In the test, the optical emission circuits of the optical coupling module are also in the above test state and run for a long time, the purposes of overall assessment of all the components of the optical emission circuits and removal of early failure components are achieved, and thus the overall reliability of the optical coupling module is improved.

Description

technical field [0001] The invention relates to a testing platform and a testing method for a direct current transmission converter valve, in particular to a testing platform and a testing method for the reliability testing platform and testing method of an optical coupling module emission circuit of a direct current transmission converter valve. Background technique [0002] The converter valve is the core equipment of the direct current transmission system. The valve-based electronic equipment realizes the triggering, monitoring and protection functions of all thyristor stages of the converter valve, and its working stability and reliability are directly related to the normal and stable operation of the DC transmission system. The optical coupling module is an important optical signal transceiver device on valve-based electronic equipment. The valve-based electronic equipment realizes the functions of triggering, monitoring and protection in one-to-one correspondence with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00G08C25/00
Inventor 林志光曹均正杨树森陈效吴文祥张海峰廖敏栾洪洲宋林伟陈伯涛刘近杨霞玉马浩宇
Owner GLOBAL ENERGY INTERCONNECTION RES INST CO LTD
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