State space analysis method of power regulating system for nuclear power station pile

Abstract

The invention relates to a state space analysis method of a power regulating system for a nuclear power station pile. The method comprises the following steps of: establishing a mathematical model of the power regulating system for the nuclear power station pile, performing mathematical modeling on each part of the system, establishing a mathematical model of the regulating system, and establishing generalized controlled object mathematical model; converting a generalized transfer function equation in the generalized controlled object mathematical model into a state space model, judging the controllability of the system, configuring a closed loop system desired extreme point, and constructing a system state feedback matrix; and if a zero point occurs in the generalized controlled object mathematical model, adding a PID (Proportion Integration Differentiation) feedback loop on the basis of a state space model, and adopting a state feedback-PID composite control structure. The method has the advantages of effective suppression of the control quantity of a pile power system, high tracking regulating performance, high robustness, certain anti-jamming capability, general significance, wide application range and ideal control effect, and a novel thought is provided for the control specific to complex control objects with zero points.

Description

technical field [0001] The invention relates to a control method for nuclear power plant reactor engineering, in particular to a state space analysis method for a nuclear power plant reactor power regulation system. Background technique [0002] In recent years, as the proportion of nuclear power in my country's energy structure has increased year by year, my country's nuclear power industry has entered a stage of rapid development. The reactor power regulation system is the core link of reactor control in nuclear power plants, and it is of great significance to the safe and economical operation of nuclear power plants and to participate in power grid peak regulation. During the operation of nuclear power plants, the main function of the research reactor power control system is to ensure that the neutron flux density of the reactor operates at the set value, to realize that the reactor power automatically follows the load change, and its overshoot, adjustment time, steady-st...

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Problems solved by technology

[0005] The present invention is aimed at the neutron dynamics system of the nuclear reactor, which is a distributed parameter system with many uncertain interference factors, which causes the unsatisfactory operation control effect of the existing nuclear power plant reactor power control mode to maintain the neutron flux density of the reactor at the set value; In order to solve the problem of poor robustness of the control system, a state space analysis method for the reactor power regulation system of nuclear power plants is proposed, which can effectively suppress the control amount of the reactor power system, and has good tracking and regulation performance, strong robustness, and certain anti-interference ability

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