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Method for operating a pressurized water reactor during load monitoring

A technology of pressurized water and reactors, applied in the control of nuclear reactions, reactors, nuclear power plants, etc., to reduce the number of steps and minimize the volume of waste liquid

Active Publication Date: 2014-01-08
FRAMATOME ANP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0030] However, this method of operation is not always optimal and does not always make it possible to minimize the volume of waste liquid and control the movement of the rod bundle

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  • Method for operating a pressurized water reactor during load monitoring
  • Method for operating a pressurized water reactor during load monitoring
  • Method for operating a pressurized water reactor during load monitoring

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no. 1 example

[0088] According to a first embodiment of the method of the invention, the step 84 of determining the reference position Z of the control rods 40 is carried out by software means present in the nuclear reactor 100, which execute a neutron calculation code from the material representing the core The simulation of the reactor behavior is carried out with data on, geometry and neutron properties, as well as the operating conditions of the core, which continuously represent the 3D model of the core.

[0089] As an example, the SMART neutron computing code based on advanced nodal 3D modeling can be cited. The principles of core neutron calculations are described in the document "Methods de calculneutronique de "(Techniques de I'Ingénieur-B203070-Giovanni B. Bruna and Bernard Guesdon) is described in more detail.

[0090] These software means executing neutron calculation codes make it possible to determine, by iterative calculations, the ideal reference position Z of the control ...

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Abstract

The present invention relates to a method for controlling a pressurized water reactor (100) comprising the steps that involve measuring the effective power (Pe) of the nuclear reactor; acquiring a reference value for the desired power (Pc); acquiring an estimated duration (DURATION) for the increase in power in order to achieve said reference value of the target power (Pc) desired, said estimated duration (DURATION) corresponding to the time taken for the power to increase from said effective power (Pe) to said reference value for the target power (Pc); determining the reference position (Z) of at least one control rod cluster among said plurality of control rod clusters (40) in order to achieve said reference value for said target power (Pc) desired as a function of said estimated duration (DURATION), of said measured effective power (Pe) and of said reference value for said target power (Pc); monitoring the position of said at least one control rod cluster so as to position it in its reference position (Z).

Description

technical field [0001] The invention relates to a method for operating a pressurized water nuclear reactor during load following. Background technique [0002] figure 1 Such a pressurized water nuclear reactor 1 is shown schematically, comprising in a conventional manner: [0003] - core 2, divided into an upper zone and a lower zone and generating power, [0004] - steam generator 3, represented by a single generator, [0005] - Turbine 4, coupled to electrical generator 5, and [0006] - condenser6. [0007] The reactor 1 also comprises a primary circuit 8 equipped with a pump 9 represented by a single pump and in which pressurized water circulates along the path indicated by the arrows. In particular, this water rises to the core 2 in order to be heated there, while at the same time ensuring the cooling of the core 2 . The water also performs the deceleration function, or slows down the neutrons produced by the nuclear fuel. [0008] The primary circuit 8 also incl...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C7/08G21C7/22G21D3/10G21D3/16G21D3/00G06F17/10
CPCY02E30/32G21C7/22G21D3/16G21C7/08Y02E30/39G21D3/001G21D3/10Y02E30/00Y02E30/30
Inventor A·格罗塞特特
Owner FRAMATOME ANP