Control method for driving mechanisms of nuclear power station

The technology of a driving mechanism and control method is applied in the control field of the control rod driving mechanism of a pressurized water reactor nuclear power plant, which can solve the problems of poor parameter adaptability, long cycle, and difficulty in on-site debugging and testing of the driving mechanism, and achieve strong adaptability and pertinence Strong, shorten the cycle of debugging and testing effect

Inactive Publication Date: 2015-02-04
NUCLEAR POWER INSTITUTE OF CHINA
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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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  • Control method for driving mechanisms of nuclear power station
  • Control method for driving mechanisms of nuclear power station

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Embodiment Construction

[0018] The present invention is described in detail below in conjunction with accompanying drawing and embodiment:

[0019] The control method of the new driving mechanism adopts the independent control method of the driving mechanism coil. The "independent control of the driving mechanism coil" method is that a set of main circuits of the power cabinet controls a kind of coil of a driving mechanism, that is, each coil of the driving mechanism is controlled by a set of independent main circuits, and the circuit and the coil of the driving mechanism One-to-one correspondence, the parameters are easy to adapt to the requirements of the coil, and the on-site debugging and testing of the drive mechanism is extremely convenient; at the same time, a certain adjustment capability is designed for the main circuit, which can adjust the output current of the main circuit within a given range. Satisfy the operating requirements of the driving mechanism in different positions or parameter...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C7/14
CPCG21C7/14Y02E30/30
Inventor 黄可东李国勇郑杲田宇金远许明周
Owner NUCLEAR POWER INSTITUTE OF CHINA
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