Pressurized water reactor (PWR) nuclear power plant reactor core power model predictive control method based on genetic algorithm

Abstract

The invention discloses a pressurized water reactor (PWR) nuclear power plant reactor core power model predictive control method based on a genetic algorithm. The method comprises the steps of establishing a mathematical state space model of a reactor core; linearizing the mathematical state space model of the reactor core; establishing a power predictive control model of the reactor core; and carrying out parameters setting for the power predictive control model based on a genetic algorithm. The invention combines operating parameters of the PWR core, sets the parameters in a controller by using an improved genetic algorithm, obtains a global optimal solution, and achieves self-adaptive adjustment of PWR nuclear power plant reactor core power control; also predicts a future deviation value by using the predictive model, determines a current optimal control strategy by rolling optimization, and enables minimum deviation between a future controlled variable and a value of expectation; and optimizes undetermined parameters in the reactor core power predictive control model by using the genetic algorithm, and obtains optimal values for the undetermined parameters.

Description

technical field [0001] The invention relates to the core power control of a pressurized water reactor nuclear power plant, in particular to a model predictive control method for the core power of a pressurized water reactor nuclear power plant based on a genetic algorithm. Background technique [0002] The pressurized water reactor core is one of the main equipment of the pressurized water reactor nuclear power plant, and its main function is to carry out nuclear reactions and generate a large amount of heat. During the operation of the pressurized water reactor nuclear power plant, if the power of the pressurized water reactor core cannot be well controlled, it may lead to shutdown or even serious accidents. Therefore, the power control of the PWR core is particularly important. [0003] At present, most of the control schemes adopted for power control of PWR core are still traditional PID control. The PID controller is based on the error of the system, using proportional...

AI Technical Summary

Problems solved by technology

Since the pressurized water reactor core is a nonlinear system, and various disturbances are uncertain, and the large-scale load changes bring certain instability, especially in low load conditions, the traditional PID control system is difficult Fast and stable control of PWR core power

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