Control method for driving mechanisms of nuclear power station

Abstract

The invention belongs to control methods for driving mechanisms of a nuclear power station, and concretely relates to a control method for a control rod driving mechanism (CRDM) of a nuclear power station. The control method comprises the following steps: (1) designing a set of independent control and adjusting circuit and monitoring circuit for a coil of each driving mechanism; (2) directly distributing control commands of CRDM to the control and adjusting circuit of each coil; (3) after the control and adjusting circuit of each coil receives the control commands, adjusting the work current of the coil according to the electrical parameters of the corresponding coil; and (4) properly adjusting the parameters of the control and adjusting circuit of each coil according to practical situations, so as to further enhance the adaptability. The advantages comprise that the method employs independent coil control, one set of the main circuit only controls one coil of the driving mechanism, and the main circuit is designed to have the adjusting capability, thereby adapting to the operation requirements of each driving mechanism.

Description

technical field [0001] The invention belongs to a control method of a drive mechanism of a pressurized water reactor nuclear power plant, and in particular relates to a control method of a control rod drive mechanism of a pressurized water reactor nuclear power plant. Background technique [0002] The control of the control rods of the PWR nuclear power plant is accomplished through the drive mechanism (CRDM). There are 3 coils inside the control rod drive mechanism, which are lifting coil, moving coil and holding coil; the holding coil is used to control the suction and opening of the holding claw, and the moving coil is used to control the suction and opening of the moving claw Coils are used to enable control rods to be lifted or inserted one step. [0003] The control of the coil for the driving mechanism is done by the rod control system. The power cabinet of the rod control system provides sequential currents to the three coils of the drive mechanism to control the m...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a control method for the driving mechanism of a nuclear power plant, which can solve the shortcomings of the "parallel control of similar coils" method, poor adaptability of parameters, difficulty in on-site debugging and testing of the driving mechanism, and long cycle, and improve the economic efficiency of the nuclear power plant

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