Nuclear power plant non-security-level DCS configuration testing method and system

Abstract

The invention discloses a nuclear power plant non-security-level DCS configuration testing method and system comprising a virtual DCS platform and a nuclear power station simulating model coupled to the virtual DCS platform. The nuclear power station simulating model is used for, according to a nuclear power unit operation control instruction given by the virtual DCS platform, simulating the operation of a real nuclear power station, acquiring the operating data of the nuclear power unit, and returning the acquired data to the virtual DCS platform. The virtual DCS platform is used for, according to the operating data of the nuclear power unit, computing and analyzing the operating condition of the nuclear power unit in real time, evaluating a difference between an analyzed result and a designed operating condition, determining the correctness and the rationality of DCS configuration logic and parameters, giving corresponding logic modification and parameter optimization, and transplanting and applying a tested and modified result to the DCS configuration of a real nuclear power unit. The nuclear power plant non-security-level DCS configuration testing method and system may reduce the investment cost of the nuclear power station, shorten the construction period of nuclear power engineering, and decrease equipment loss.

Description

technical field [0001] The invention relates to the technical field of nuclear power plant operation detection, and more specifically relates to a non-safety level DCS configuration test method and system for a nuclear power plant. Background technique [0002] At present, the newly-built nuclear power units in the world have adopted the digital instrument control system (DCS for short) to realize the centralized monitoring, remote control and protection of the whole process of the plant. Nuclear power DCS configuration covers a wide range, has many functions, and the linkage relationship between various process subsystems is close. The risk of nuclear power unit commissioning and start-up is high. Therefore, the correctness of DCS configuration design is particularly important for nuclear power unit commissioning and commissioning safety. important. [0003] At present, the known nuclear power DCS configuration testing methods include on-site testing methods, testing metho...

AI Technical Summary

Problems solved by technology

During the test, it is necessary to bring physical equipment into action. If there is a problem with the DCS configuration, many unexpected situations such as equipment misoperation and refusal to operate are likely to occur, which brings a great risk of damage to the equipment and also brings great harm to the test personnel. personal safety risk

[0006] 2. Long construction period

The test work needs to wait for the on-site equipment, signal cables, and DCS platform to be available. However, at present, the availability of equipment in nuclear power projects is generally far behind that of the DCS platform, and the idle test window cannot be fully utilized.

[0007] 3. High cost

This method needs to be connected and communicated with the DCS of the power plant through hard wiring, and is limited by the number of temporary test cables, the scale of test IO cards, and the cost of testing. This DCS configuration test method cannot cover the entire plant.

[0010] 2. Limitations of batching

Due to the limited number of test devices and test personnel, the official IO channel needs to be occupied during each test, and the transfer of the test platform and the laying and termination of test cables require a lot of manpower and material resources. Facing the batch construction of the project, it is impossible Meet the needs of the project

[0011] 3. High cost

The full-range simulator is mainly for the training of operating operators. Therefore, its test objects are mainly operating procedures and human-computer interaction screen configuration. The testers are generally simulator suppliers, operating operators, simulator instructors, and simulators. The test plan lacks the participation of professional commissioning personnel for unit performance testing

[0014] 2. The reference value of the test results of the simulator is not high

Due to the lack of professional commissioning personnel participating in the overall performance evaluation of the unit, during the commissioning period, it is necessary to perform many commissioning tests, adjust the overall control and protection parameters of the unit, and optimize the performance of the unit during commissioning. However, due to the difference in professional division of labor, the entire scope The test of the simulator greatly discounts the reference value of the real unit

[0015] 3. High cost

The full-range simulator needs to be used to simulate the real main control room, which is completely configured according to the actual ratio of one to one, and the equipment used is exactly the same as the real equipment. The cost is too expensive, which is unacceptable for the cost of control engineering

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