Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Tokamak ohm heating coil control system and method

An ohmic heating and tokamak technology, applied in electrical components, plasma, etc., can solve the problems of circulating current mode operation, uncontrollable current zero-crossing time, control time delay, etc., to achieve precise control, good portability, The effect of stable and efficient work

Inactive Publication Date: 2020-06-19
SOUTHWESTERN INST OF PHYSICS
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the defects of the prior art, the present invention provides a tokemak ohmic heating coil control system and control method, which solves the problems of uncontrollable current zero-crossing time, circulation mode operation and control time delay in the existing control system

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tokamak ohm heating coil control system and method
  • Tokamak ohm heating coil control system and method
  • Tokamak ohm heating coil control system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] This application includes the following:

[0034] The power supply structure of the tokmak ohmic heating coil adopts an energy storage generator, an AC isolation transformer, a positive conducting switch K1, a negative conducting switch K2 and two sets of three-phase converters (F1, F2) connected in antiparallel to the ohmic The heating coil is powered.

[0035] GPS (such as figure 2 ) The synchronous clock provides 10M precise clock signals for different control devices in the control system of the entire ohmic heating coil to meet the accuracy requirements of time and clock during the coil magnetization and inversion process, and reduce the system time delay.

[0036] The real-time controller regularly reports to the watchdog (such as figure 2) to send a 1 millisecond pulse to monitor the operating status of the system in real time to prevent the safety problem of the control system caused by the computer crash and ensure the normal operation of the entire system....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention belongs to the field of fusion system heating coil control, and particularly relates to a Tokamak ohm heating coil control system and method. The Tokamak ohmic heating coil control system comprises a generator, the generator is electrically connected with an alternating-current transformer, and the output end of the alternating-current transformer is connected with an ohmic heating coil through a switch bridge. The control system has the remarkable effects that a control system consisting of the real-time LINUX and the FPGA is adopted, and meanwhile, a good control method is adopted, so that the control system has good real-time performance and multi-task processing capability. A computer clock in the GPS clock synchronization system is adopted in the system, and synchronousoperation synchronous communication and synchronous transmission of all the systems are guaranteed. In addition, the FPGA is utilized to generate high-precision control pulse according to the controlangle to operate the on and off of the thyristor, thereby realizing the precise control of ohmic current required by plasma control.

Description

technical field [0001] The invention belongs to the control field of a heating coil of a fusion system, and in particular relates to a control system and method for a tokamak ohmic heating coil. Background technique [0002] The tokamak device confines and controls the current and configuration of the plasma by changing the current to generate a stable magnetic field. Ohmic heating coils play a decisive role in plasma breakdown, ramp-up and maintaining plasma current during plasma discharge. The plasma current will be unstable due to the current fluctuation of the ohmic heating coil, and the stable power supply and zero crossing of the ohmic heating coil are very important for realizing stable plasma current control. Therefore, it is necessary to design a good control system and control method to obtain a good control effect. [0003] Due to the complex operating mode of the ohmic heating coil of the tokmak device and the difficulty of current control, the current control ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): H05H1/02
CPCH05H1/02
Inventor 周建任磊磊李佳鲜郑国尧张锦华宋显明罗萃文
Owner SOUTHWESTERN INST OF PHYSICS
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com