Logic test method and device suitable for reactor protection system

Abstract

The invention relates to a logic test method and device suitable for a reactor protection system. The logic test method comprises a construction step, a call step, an operation step and a judgment step, wherein the construction step is as follows: constructing test programs and a truth table based on a comma separated values (CSV) format, wherein the truth table comprises the logic diagram index information of the reactor protection system, an input variable, an output variable, the voluation information of the input variable, the input variable of the output variable, and an execution time; the call step is as follows: reading the logic diagram index information, calling the test programs corresponding to the logic diagram index information; the operation step is as follows: reading the input variable and carrying out voluation on the input variable in accordance with the voluation information of the input variable, and carrying out logic operation in accordance with the called test program and the execution time so as to obtain the output value of the output variable; and the judgment step is as follows: judging whether the output value of the output variable is consistent with the expected value, if yes, outputting correct result information, and if no, outputting wrong result information. In the logic test method, the test is carried out by constructing the truth table based on the CSV format and the test program, thus being convenient for modification and regulation, and avoiding human errors.

Description

technical field

[0001] The invention relates to the field of nuclear power plants, in particular to a logic test method and device suitable for a reactor protection system. Background technique

[0002] As a major part of the nuclear power plant, the reactor protection system is used to protect the integrity of the three major nuclear safety barriers (namely, the fuel cladding, the primary circuit pressure boundary and the containment vessel). When the threshold is reached, the reactor protection system will act immediately to trigger the emergency shutdown of the reactor, and activate the special safety facilities if necessary.

[0003] In the logical design of the reactor protection system, firstly compare the limit values ​​of hundreds of operating parameters collected on site, and then carry out logical processing of various combinations, and finally judge whether to output the reactor jump signal or the special safety facility action signal. Since the logical relations...

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