Digital rod position control system and method

Abstract

The invention relates to a digital rod position control system, which comprises a reactor core control unit, a rod control driving unit, and a rod position processing and indicating unit. The reactor core control unit is used for outputting a corresponding rod position operation command according to a control rod control command transmitted by a main control chamber; the rod control driving unit is used for receiving the rod position operation command and controlling the action sequence of a falcula in a control rod driving mechanism according to the rod position operation command so as to realize corresponding movement of the control rod along the axial direction; and the rod position processing and indicating unit is used for measuring the actual rod position information of the control rod, shaping and encoding the actual rod position information and transmitting the information to a rod position processing cabinet and rod position display equipment in the main control chamber, simultaneously comparing the actual rod position information with the rod position operation command, and transmitting a fault alarm signal when the gliding, breaking step and accidental drop of the control rod exceeds the preset threshold. The invention relates to a digital rod position control method. The digital rod position control system and the digital rod position control method realize the digital control of reactor power and temperature in a nuclear power station and improve the reliability and safety of the rod position control system.

Description

technical field [0001] The invention relates to the technical field of digital control of nuclear power plants, and more specifically, to a digital rod position control system and a control method thereof. Background technique [0002] With the development of digital control technology, the current analog nuclear power plant rod position control system can no longer meet the requirements of current nuclear power plants for reactor power control and temperature control, and has shown certain limitations in network communication and data management. There are also certain hidden dangers in terms of reliability and safety. [0003] At present, the reliability and safety of digital equipment with processor as the core have been greatly improved, which creates favorable conditions for the use of digital rod position control and rod position display in nuclear power plants. At the same time, according to the characteristics of the CPR1000 pressurized water reactor control system,...

AI Technical Summary

Problems solved by technology

[0002] With the development of digital control technology, the current analog nuclear power plant rod position control system can no longer meet the requirements of current nuclear power plants for reactor power control and temperature control, and has shown certain limitations in network communication and data management. There are also certain hidden dangers in terms of reliability and safety.

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