Inverter inversion control card test system and method

Abstract

The invention relates to a testing system and method for an inverter control card. The test system is used for testing the fault performance of the inverter control card, and includes a pre-control device, a DC adjustable power supply, and an acquisition control device. , Acquisition adapter device; the pre-control device receives different test cases, and parses each test case into different control commands; the DC adjustable power supply receives signal excitation commands, and sends test signals to the acquisition control device; the acquisition control device receives the test Control command and test signal, according to the test control command, send the test signal to the acquisition and adaptation device; the acquisition and adaptation device receives the test signal and fault mode command, adjusts the test signal and outputs it to the inverter control card of the inverter, according to the fault mode command for failure performance testing. The test system and method of the present invention solve the shortcomings of the prior art that a large number of manual operations are required, the requirements for operators are high, and hidden troubles cannot be dealt with in time.

Description

technical field [0001] The invention relates to the on-line monitoring technology of power equipment in nuclear power plants, and more specifically relates to a testing system and method for an inverter inverter control card. 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] LNE, LNP, LNG and other inverter systems are commonly used equipment in Daya Bay and Ling'ao nuclear power plants. The inverter control card is an important part of the inverter system. The working status indicator and digital tube of the card display the working status of the card itself. and inverter failure prompts, whi...

AI Technical Summary

Problems solved by technology

However, after long-term operation or misoperation, it may cause the performance of the card to decline or even cause hidden dangers. If it cannot be discovered in time and dealt with 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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