Nuclear power station diversity protective system hardware architecture based on field programmable gate array (FPGA)

Abstract

The invention provides a nuclear power station diversity protective system hardware architecture based on field programmable gate array (FPGA), aims at solving the technical problem to avoid potential risks caused by software common mode failure, and belongs to the industrial automatic control field. The architecture is characterized in that a card piece comprises an analogy quantity input card, a logical processing card, a digital quantity input/output card and a communication card, the card piece respectively uses the FPGA as a logical processing component, the analogy quantity input card and the digital quantity input/output card respectively carry out data transmission through a signal transmission line and the logical processing card, and the analogy quantity input card, the digital quantity input/output card, the logical processing card, an upper computer and display equipment respectively carry out the data transmission through the signal transmission line and the communication card. The architecture solves the problem of the potential risks brought about by the software common mode failure, and improves reliability of a nuclear power station instrument control system. Simultaneously, self diagnosis, real-time monitor, parameter setting and online channel test of the card piece can be carried out, and flexible card piece arrangement can ensure expandability and integrity of a whole hardware platform.

Description

technical field [0001] The invention belongs to the field of industrial monitoring and automatic control, and relates to a hardware platform architecture for a nuclear power plant diversity protection system. Background technique [0002] In the instrument and control system of nuclear power plants, especially in the protection system of nuclear power plants, multi-level, multi-channel, and multi-redundant equipment are often set up to ensure the reliability of the entire protection system. In order to avoid the risks brought by module faults, the nuclear power plant has also set up a diversity protection system, which uses equipment, principles and structures that are diverse with the protection system to realize the backup of the protection function of the nuclear power plant. The early diversity protection system of nuclear power plants used analog technology. With the requirement of digitalization of nuclear power plant instrumentation and control equipment, a digital di...

AI Technical Summary

Problems solved by technology

However, there are many potential faults in software, and it is difficult to find and solve all these faults

Therefore, software-based microprocessors are also prone to common-mode failures, resulting in the failure of redundant equipment and diverse backups originally set up to improve reliability in the instrumentation and control system.

Images