A method for switching different control strategies of high and low loads of a nuclear power plant

CN116864170BActive Publication Date: 2026-05-12NUCLEAR POWER INSTITUTE OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NUCLEAR POWER INSTITUTE OF CHINA
Filing Date
2023-05-12
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In existing technologies, switching control strategies between high and low load conditions at nuclear power plants can easily lead to load fluctuations, which may cause transient or reactor shutdown risks, and there is a lack of effective switching methods.

Method used

A method for switching control strategies for high and low loads in nuclear power plants is adopted. Through the logic control of signal selection unit and automatic action signals of control rods, the smooth switching of reactor power control system under high and low load conditions is realized. The method includes switching steps from low load to high load and from high load to low load. During the switching process, signal replication and manual control modes are used to reduce disturbances.

Benefits of technology

It enables smooth switching of the reactor power control system under high and low load conditions, ensuring the economical operation of the nuclear power plant and improving operational flexibility, while avoiding the risk of transients or reactor shutdowns caused by load fluctuations.

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Abstract

The present application belongs to the technical field of nuclear power plant instrument control system, and particularly relates to a method for switching different control strategies of high and low load of a nuclear power plant. The present application comprises the following steps: S1, a low load control mode, obtaining a low load control permission signal P=1, a high load control permission signal P1=0, and obtaining a control rod automatic action signal C; S2, switching from the low load control mode to the high load control mode; S3, a high load control mode, obtaining the control rod automatic action signal C; S4, switching from the high load control mode to the low load control mode; and S5, the control rod will be switched into a manual control mode, and the automatic control signals of the high and low load control channels are all invalid. The present application can realize the mutual stable switching of the automatic control signals of the reactor power control system under high and low load conditions, and ensure the economic operation of the nuclear power plant and improve the operation flexibility of the nuclear power plant.
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