Nuclear power station main control and auxiliary control switching method and system

Abstract

The invention discloses a nuclear power station main control and auxiliary control switching method comprising the steps that a starting command is sent to an auxiliary control system by a switching switch; whether the auxiliary control system performs activation operation according to the starting command is judged by a logic processing unit; if the auxiliary control system performs activation operation according to the starting command, a shutting command is sent to a main control system by the switching switch; and the main control system performs stop operation according to the shutting command. The main control system for nuclear power station operation control is switched to the auxiliary control system so that a situation that nuclear power station operation cannot be controlled under the emergency situation that a main control chamber including the nuclear power station main control system loses control can be avoided. Besides, the invention also discloses a nuclear power station main control and auxiliary control switching system.

Description

technical field [0001] The invention belongs to the field of nuclear power plant control, and more specifically, the invention relates to a method and system for switching main control and auxiliary control of a nuclear power plant. Background technique [0002] The nuclear power plant control room, also known as the main control room (Control Room, CR), is the operation control center of the nuclear power plant. The operating personnel conduct comprehensive monitoring and control of the power plant through the operating equipment in the control room. As the automation level of nuclear power plant production equipment has been greatly improved, nuclear power plants have formed an advanced control room based on computer technology, using digital operations to realize digital monitoring, diagnosis, control and protection functions of nuclear power plant process systems and equipment. The digital main control room workstation consists of the following four workstations, includi...

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Problems solved by technology

[0003] However, since the backup panel control system can only be installed in the main control room, when the main control room and operator workstation of the nuclear power plant are unavailable, such as a fire in the main control room and operator workstation, excessive smoke or dangerous gas entering the main control room or the operator Workstations, main control room or operator workstation areas are seriously damaged, and major failures occur in the main control room facilities, etc., the staff cannot enter the main control room and operator workstations for operation, and cannot be realized by switching to the backup panel control system Control of the main control room; in addition, the backup disk is based on mechanical operation and cannot be controlled digitally

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