Nuclear power control system and nuclear power control method

Abstract

The invention relates to the technical field of nuclear power station steam turbine auxiliary systems, and provides a nuclear power control system and a nuclear power control method. The system comprises a steam turbine power control system and a reactor power control system; the steam turbine power control system controls steam turbine active power of a steam turbine function unit; the reactor power control system controls reactor power by controlling a power bar and a temperature bar of a reactor function unit; the reactor power control system receives key parameters coming from the steam turbine power control system and representing steam turbine control, and the key parameters are coordinated with reactor power control. The control method has a steam turbine power control system powerclosed loop control mode and a pressure limiting mode. The technical scheme is applied to a nuclear power station unit, GRE-RGL control is stable, the condition of steam turbine load shedding or nuclear island overpowering is avoided, and reactor-steam turbine power transient state control stability and reactor power balance are achieved.

Description

technical field [0001] The invention relates to the technical field of a steam turbine auxiliary system of a nuclear power plant, in particular to a nuclear power control system and a nuclear power control method. Background technique [0002] The steam turbine power control system (GRE, steam turbine regulation control system, steam turbine regulation system) and the reactor power control system (RGL, reactor power bar control system) are the core of the power control of the nuclear power plant, and the nuclear power plant of the prior art is prone to transient control instability For example, the steam turbine regulation control system of domestic nuclear power plants is designed with reference to the French power grid. After being introduced to China, there are some design defects. The overcooling of the primary circuit and the overshooting of the reactor power are caused by increasing the power. [0003] Since the second phase of a domestic nuclear power plant was put i...

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Problems solved by technology

[0009] The above five events are all due to the frequency fluctuation of the power grid under transient conditions, and the control mode of the steam turbine is changed from power closed-loop control to manual control; Transient occurrence of control system control and change of G rod position setting value of reactor power control system

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