Inverter triggering card test system and method

Abstract

The present invention relates to an inverter triggering card test system and method. The test system includes a pre control device, a signal generating device, an acquisition control device and an acquisition adaptation device; the pre control device receives different test cases and analyzes the test cases to obtain different control instructions; the signal generating device receives signal excitation instructions and sends test signals to the acquisition control device; the acquisition control device receives the test control instructions and the test signals and sends the test signals to the acquisition adaptation device; and the acquisition adaptation device receives the test signals, conditions the test signals, outputs conditioned test signals to an inverter triggering card so as to test the inverter triggering card, receives adaptation feedback instructions, processes test feedback signals and uploads processed test feedback signals to the pre control device. With the test system and method of the invention adopted, problems such as a requirement for a large quantity of manual operation, higher requirements for operators, and incapability of realizing comprehensive testing of functions can be solved.

Description

technical field [0001] The invention relates to the on-line monitoring technology of nuclear power plant electric equipment, and more specifically relates to an inverter trigger card testing system and method. Background technique [0002] Now Daya Bay, Ling Ao Phase I, and Ling Ao Phase II nuclear power plants generally use uninterruptible power supplies to ensure the safe and stable operation of the power plants. The inverter card is a very important part of the uninterruptible power supply. An important card for the normal operation of the system. Different types of inverter cards can be used for different power supply systems. [0003] Inverter systems such as LNH, LNP, and LNG are commonly used equipment in Daya Bay and Ling'ao nuclear power plants. The main function of the inverter trigger card is to generate pulse signals through the excitation of external power signals to ensure that the thyristors of the inverter are normally turned on. The core card that successfu...

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Problems solved by technology

[0003] Inverter systems such as LNH, LNP, and LNG are commonly used equipment in Daya Bay and Ling'ao nuclear power plants. The main function of the inverter trigger card is to generate pulse signals through the excitation of external power signals to ensure that the thyristors of the inverter are normally turned on. The core card that successfully completes the inverter function is an important part of the inverter system. When the trigger card fails, the pulse signal received by the thyristor is wrong, which will cause the inverter to fail and the system cannot work normally. The entire power station brings great economic losses, so the inverter trigger card plays an important role in the process of inverter, operation, output grid connection, etc.

However, after long-term operation or misoperation, it may cause the aging of the card parts and various hidden troubles. If it is not handled in advance, it will affect the normal operation of the power supply unit and cause unnecessary losses.

[0004] At present, there is a lack of targeted research on the internal components of nuclear power plant inverters in China. The maintenance or replacement of this type of components depends on the manual inspection of the relevant cabinets of the overall inverter system or simple appearance identification. To determine the working status of the card, it is impossible to conduct power-on test and analysis on the old card automatically or in batches, and there is a lack of means for intelligent inspection and diagnosis of hidden card failures

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