Inverter synchronization card detection system and method

Abstract

The invention relates to an inverter synchronization card detection system and method. The detection system comprises a front-mounted control device, a DC (direct current) adjustable power supply, a collection control device and a collection adapting device, wherein the front-mounted control device receives different test cases and resolves the test cases into different control commands; the DC adjustable power supply receives a signal excitation command and sends a controllable voltage signal to the collection control device; the collection control device receives the test control command and the controllable voltage signal and sends the controllable voltage signal to the collection adapting device; and the collection adapting device receives and conditions the controllable voltage signal and outputs the controllable voltage signal to an inverter synchronization card, tests the inverter synchronization card, receives an adapting feedback command, processes the tested feedback signal and uploads the tested feedback signal to the front-mounted control device. By adopting the detection system and method provided by the invention, the shortcomings of the prior art that lots of manual operation is required, the requirements on operators are high and comprehensive function testing is unavailable are solved.

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 detection system and method for an inverter synchronization 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] Inverter systems such as LNH, LNP, and LNG are commonly used equipment in Daya Bay and Ling'ao nuclear power plants. The inverter synchronization card is a key card to ensure that the inverter output voltage phase is consistent with the bus voltage phase, and is an important component of the inverter system. part, when it...

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Problems solved by technology

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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