Motor motion control mechanism and method for neoclassical tearing mold in stable nuclear fusion device

Abstract

The invention discloses a motor motion control mechanism and method for stabilizing a new classic tearing die in a nuclear fusion device; the mechanism includes: a control object, a zero-backlash motor, a motor sensor, a host computer, a motion controller, a servo driver and a communication Network; the host computer converts the angle requirements of the control object for the stable new classic tearing die into the motion parameters and control commands of the zero-backlash motor, and communicates with the motion controller through the local Ethernet; the motion controller communicates with the motion controller through the industrial real-time Ethernet and Servo drive communication, sending motor motion parameters and control commands to the servo drive, and obtaining real-time motion data of the motor; the servo drive controls the zero-backlash motor within the micro stroke range according to the motor motion parameters and control commands, combined with the motor sensor signal and local parameters The high-speed displacement and precise positioning can realize the angle adjustment of the control object to meet the needs of the physical research of stabilizing the neoclassical tearing mode in the nuclear fusion device.

Description

technical field [0001] The invention relates to the technical field of nuclear fusion experiment, in particular to a motor motion control mechanism for stabilizing the neoclassical tearing mode in the nuclear fusion device and a method thereof. Background technology [0002] In order to obtain high-performance plasma in Tokamak device, it is necessary to carry out real-time feedback control on the magnetic island of new classical tearing modes (NTMs) in the discharge process. Electronic cyclotron heating (ECRH) and current drive (ECCD) are the best known control means. They have been widely used in international mainstream devices such as DIII-D, jt-60u, asdex-u, FTU and TCV, and a series of NTMs control experiments have been carried out. A key core technology of NTMs real-time feedback control is to accurately and quickly adjust the deposition position of electron cyclotron (EC) beam in the plasma to keep it aligned with NTMs magnetic island. At present, to meet the demand of NT...

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Problems solved by technology

[0003] (1) It is impossible to meet the two performance indicators of high precision and fast response of motor movement at the same time, that is, to achieve high-speed displacement and precise control within the micro-stroke range of millimeter order

[0004] (2) The motion mode of the motor is single, and the motion parameters are encapsulated and difficult to modify, which cannot meet the needs of flexible physical experiment research

[0005] (3) It is impossible to synchronize the real-time motion data during the rotation of the rotatable mirror with the plasma discharge time, which is not conducive to the analysis of later experimental data

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