Equipment structure optimal selection device of nuclear power plant and processing method

Abstract

The invention discloses an equipment structure optimal selection device of a nuclear power plant. The device comprises a protection interface, two optimal selection logic channels and a driving logicunit; the protection interface is used for inputting a first protection instruction and a second protection instruction; the two optimal selection logic channels are connected with the protection interface separately and used for sequentially inputting first logic signals to verify instruction paths of the channels during the self-diagnosis of the equipment structure optimal selection device, andwhen one optimal selection logic channel inputs the corresponding first logic signal, the other optimal selection logic channel inputs the first protection instruction and the second protection instruction to work normally to output a logic result; the driving logic unit is connected with the two optimal selection logic channels separately and used for conducting priority processing on the logic result and outputting a final instruction to an execution mechanism. The invention further discloses a processing method for the equipment structure optimal selection device of the nuclear power plant.By means of the processing method, it can be ensured that the equipment structure optimal selection device can achieve the most reasonable instruction optimal selection and complete online self-diagnosis at the same time.

Description

technical field [0001] The invention relates to the technical field of nuclear power plants, in particular to a device for optimizing the structure of nuclear power plant equipment and a processing method. Background technique [0002] For an executive agency of a nuclear power plant, it may receive more than one order, such as protection order and control order. Among them, protection instructions (usually two, denoted by X1 and X2 respectively) are mainly used to automatically trigger reactor emergency shutdown and / or special safety device actions to achieve and maintain safe shutdown conditions of the power plant; control instructions (Denoted by Y) is mainly used to adjust the reactor and other key system parameters, so that the power plant maintains the largest safety margin and the best transient performance. Important key equipment also has a blocking instruction (indicated by Z) to prevent misoperation, and an on-site operation instruction (indicated by L) when the ...

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Problems solved by technology

[0004] When the equipment interface optimization module in the prior art realizes self-diagnosis, due to the existence of AND logic, it is necessary to control the logic signals of the two protection instructions X1 and X2 to be 1, but this self-diagnosis method affects the performance of the equipment interface optimization module. Optimal work, thus affecting the normal work of the actuator

However, if the logic signals of the two protection commands X1 and X2 are set differently, it will not be able to participate in the optimization logic verification after AND logic, so that self-diagnosis cannot be realized

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