High temperature gas-cooled reactor helium flow control system and method with incremental adjustment function

Abstract

The invention discloses a high-temperature gas-cooled reactor helium flow control system and method with an incremental adjustment function, comprising the following steps: 1) calculating the thermal helium temperature correction value used for thermal helium temperature PID adjustment; 2) calculating The power correction value used for the power PID adjustment of the unit; 3) Calculate the helium flow correction value for the helium flow PID adjustment; 4) According to the hot helium temperature correction value for the hot helium temperature PID adjustment, for the unit The power correction value for power PID adjustment and the helium flow correction value for helium flow PID adjustment are used for three-impulse control, and then the reactor is controlled according to the results of the three-impulse control. The system and method can quickly track the change trend of the control variable , to modify the output of the control variable to meet the functional requirements of the reactor tracking the grid load for peak regulation and frequency regulation.

Description

Technical field [0001] The present invention belongs to the field of Nuclear Science and Engineering, HTGR helium gas flow is directed to a control system and method with incremental adjustment function. Background technique [0002] Pebble bed HTGR with helium as a coolant, graphite as the reflective layer material for neutron moderator material and the structural material of spherical fuel elements. In the normal operation of the reactor, the main drive rely helium coolant helium blower, flows in a loop reactor pressure vessel and the inner member by the reactor pressure vessel, the steam generator and the hot gas conduit housing constituting the housing composed of the sprue, for forced circulation, and heated to remove heat from the reactor core, steam generator by transferring heat to a secondary cooling system and cooled in the steam generator, thereby forming a closed cycle. [0003] HTR nuclear power plant using multiple reactors and a combination of the turbogenerator sy...

AI Technical Summary

Problems solved by technology

The control variable is affected by the internal structural properties of the equipment and the external operating conditions. Its control characteristics are nonlinear, and have distribution parameters and time-varying characteristics. At present, it is difficult to achieve precise control.

The cascade control system adopted by the high-temperature gas-cooled reactor has the advantage of being able to reduce the maximum deviation of the control variable and the integral error, but the dynamic adjustment performance needs to be improved when the unit is operating under variable conditions, and the control scheme does not meet the requirements of the reactor to track the load of the power grid. Functional Requirements for Peak FM

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