Nuclear power plant communication power supply design system and design method

Abstract

The invention provides a nuclear power plant communication power supply design system and method, and the system comprises a power supply input assembly which is provided with three independent powersupply input screens and / or input boxes, and is correspondingly connected with three paths of power supplies of different columns, wherein the power supply input assembly is used for selecting a column of power supplies for inputting three paths of different column types of power supplies under normal working conditions and accident working conditions (including LOOP working conditions and SBO working conditions); the system also comprises a UPS assembly which is used for supplying power to the communication system under normal or accident working conditions; and under the SBO working condition, the UPS assembly only supplies power to the nuclear power plant emergency communication alternating current load equipment. The system has the capability of keeping power supply for the communication system under the SBO working condition and under the working condition where a SBO diesel engine fails to access a mobile emergency diesel engine, and the requirement that effective communication means are available after all assumed originating events and under the accident working condition is met. Meanwhile, power loss of most of communication systems caused by single-point faults of the double-channel alternating-current input screen is avoided, and the power utilization efficiency and the expansion capacity are improved.

Description

technical field [0001] The invention relates to the technical field of nuclear power plants, in particular to a design system and method for a communication power supply of a nuclear power plant. Background technique [0002] The nuclear power plant communication power system installed in the central computer room of the nuclear power plant communication network is the heart of the nuclear power plant communication system, and plays a pivotal role in the normal operation of the entire plant communication system. The communication power supply system of the nuclear power plant must not only maintain normal operation during the normal operation of the nuclear power plant, but also cannot be paralyzed under accident conditions. Effective means of communication are available. The accident conditions of nuclear power plants that have a major impact on communication power mainly include: SBO (Station (Supply) Black Out, power station supply interruption / plant-wide power outage ac...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the current nuclear power plant communication power supply system cannot maintain power supply under the power supply accident SBO working condition and the SBO diesel engine fails to connect to the mobile emergency diesel engine, and the system power distribution equipment is improperly configured, has poor reliability and low power utilization efficiency Problem, combined with the existing technical status in the nuclear power plant, the present invention proposes a design system and method for the communication power supply of the nuclear power plant. The specific technical scheme is as follows:

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