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CN-122024877-A - Method and device for determining state information in reaction chamber in nuclear fusion reaction process

CN122024877ACN 122024877 ACN122024877 ACN 122024877ACN-122024877-A

Abstract

The application provides a method and a device for determining state information in a reaction chamber in a nuclear fusion reaction process, wherein the method comprises the steps of obtaining diagnosis information of the nuclear fusion reaction device in the nuclear fusion reaction process, determining target configurations in a plurality of alternative configurations of plasmas based on the diagnosis information, wherein the plurality of alternative configurations comprise a single-ring configuration, a first double-ring configuration and a second double-ring configuration, the first double-ring configuration comprises two independent plasma rings, the second double-ring configuration comprises two plasma rings positioned in a closed magnetic surface, performing balanced inversion processing based on the diagnosis information and a response feature set corresponding to the target configurations, determining the target state information in the reaction chamber, wherein the response feature set comprises a plurality of response features reflecting the relation between the diagnosis information and the state information, and the method reduces limitation of determining the state information in the reaction chamber in the nuclear fusion reaction process.

Inventors

  • CHENG ZHENGBO
  • LIU ZHENGRONG
  • TAN YI
  • CHEN RUI

Assignees

  • 北京星环聚能科技有限公司
  • 上海星环聚能科技有限公司

Dates

Publication Date
20260512
Application Date
20241030

Claims (15)

  1. 1. A method for determining state information in a reaction chamber during a nuclear fusion reaction, the method comprising: acquiring diagnostic information of a nuclear fusion reaction device in the nuclear fusion reaction process; Determining a target configuration among a plurality of alternative configurations of the plasma based on the diagnostic information, wherein the plurality of alternative configurations comprises a single ring configuration, a first double ring configuration comprising two independent plasma rings, and a second double ring configuration comprising two plasma rings in one closed magnetic plane; And carrying out balanced inversion processing based on the diagnosis information and a response characteristic set corresponding to the target configuration to determine target state information in the reaction chamber, wherein the response characteristic set comprises a plurality of response characteristics reflecting the relation between the diagnosis information and the state information, and the target state information comprises distribution information of plasma and distribution information of a magnetic field in the reaction chamber.
  2. 2. The method of claim 1, wherein determining a target configuration among a plurality of alternative configurations of the plasma based on the diagnostic information comprises: Determining a target magnetic flux extreme point of plasma in a reaction chamber of the nuclear fusion reaction device based on the diagnosis information, wherein magnetic fluxes at all positions around the magnetic flux extreme point are larger than or smaller than magnetic fluxes at the magnetic flux extreme point; determining a target outermost closed magnetic surface of the plasma based on the target magnetic flux extremum point; And determining a target configuration among a plurality of alternative configurations of the plasma based on the target magnetic flux extreme points and the target outermost closed magnetic surface.
  3. 3. The method of claim 2, wherein determining a target flux extremum point of a plasma in a reaction chamber of the nuclear fusion reaction device based on the diagnostic information comprises: determining an alternative magnetic flux extreme point of plasma in a reaction chamber of the nuclear fusion reaction device based on the diagnosis information; And screening out the candidate magnetic flux extreme points meeting the screening condition based on the positions of the candidate magnetic flux extreme points, and determining the target magnetic flux extreme points.
  4. 4. A method according to claim 3, wherein screening out candidate flux extremum points that satisfy a screening condition based on the location of each candidate flux extremum point, determining a target flux extremum point, comprises: The method comprises the steps of determining the distance between each alternative magnetic flux extreme point and the inner wall of a reaction chamber in a nuclear fusion reaction device based on the position of each alternative magnetic flux extreme point, screening the alternative magnetic flux extreme points meeting screening conditions in each alternative magnetic flux extreme point to obtain a first auxiliary magnetic flux extreme point, wherein the screening conditions comprise that the distance between each alternative magnetic flux extreme point and the inner wall of the reaction chamber is smaller than a distance threshold value; And/or the number of the groups of groups, The method comprises the steps of determining the position of each alternative magnetic flux extreme point, determining the to-be-analyzed magnetic flux extreme point which is located in the area where the fusion compression MC coil is located in the nuclear fusion reaction device, screening out the to-be-analyzed magnetic flux extreme point which meets screening conditions in the alternative magnetic flux extreme points to obtain a second auxiliary magnetic flux extreme point, and determining a target magnetic flux extreme point based on the second auxiliary magnetic flux extreme point, wherein the screening conditions comprise that a magnetic flux transition point is arranged in the to-be-analyzed area, the to-be-analyzed area comprises the area where the MC coil is located, and magnetic fluxes in one direction around the magnetic flux transition point are larger than those in the magnetic flux transition point in two directions perpendicular to each other, and magnetic fluxes in the other direction are smaller than those in the magnetic flux transition point.
  5. 5. The method according to claim 3 or 4, wherein screening out candidate flux extremum points that satisfy a screening condition based on the location of each candidate flux extremum point, determining a target flux extremum point, comprises: Screening out the candidate magnetic flux extreme points meeting the screening condition based on the positions of the candidate magnetic flux extreme points to obtain auxiliary magnetic flux extreme points; Determining the auxiliary magnetic flux extreme point closest to the middle plane of the reaction chamber as a target magnetic flux extreme point in the case that the number of the auxiliary magnetic flux extreme points is greater than 2; And under the condition that the number of the auxiliary magnetic flux extreme points is 2, determining the target magnetic flux extreme points based on the outermost closed magnetic surfaces corresponding to the two auxiliary magnetic flux extreme points and the area of the outermost closed magnetic surface corresponding to each auxiliary magnetic flux extreme point.
  6. 6. The method of claim 5, wherein determining the target flux extremum point based on the outermost closed magnetic surface to which the two auxiliary flux extremum points correspond, respectively, and the area of the outermost closed magnetic surface to which each auxiliary flux extremum point corresponds, comprises: Under the condition that two auxiliary magnetic flux extreme points correspond to two different outermost closed magnetic surfaces respectively and the area ratio of one outermost closed magnetic surface in the two outermost closed magnetic surfaces is smaller than a target ratio, determining the auxiliary magnetic flux extreme point corresponding to the other outermost closed magnetic surface as a target magnetic flux extreme point; Under the condition that the two auxiliary magnetic flux extreme points correspond to two different outermost closed magnetic surfaces respectively, and the area occupation ratio of each outermost closed magnetic surface in the two outermost closed magnetic surfaces is not smaller than a target ratio, determining the two auxiliary magnetic flux extreme points as target magnetic flux extreme points; Under the condition that the outermost closed magnetic surfaces corresponding to the two auxiliary magnetic flux extreme points are the same, determining an auxiliary outermost closed magnetic surface which does not surround the other auxiliary magnetic flux extreme point and corresponds to each auxiliary magnetic flux extreme point, and obtaining two auxiliary outermost closed magnetic surfaces; Under the condition that the area ratio of one auxiliary outermost closed magnetic surface in the two auxiliary outermost closed magnetic surfaces is smaller than the target ratio, determining an auxiliary magnetic flux extreme point corresponding to the other outermost closed magnetic surface as a target magnetic flux extreme point; And determining two auxiliary magnetic flux extreme points as target magnetic flux extreme points under the condition that the area ratio of each auxiliary outermost closed magnetic surface in the two auxiliary outermost closed magnetic surfaces is not smaller than a target ratio.
  7. 7. The method of any one of claims 2 to 4, wherein determining a target outermost closed magnetic surface of the plasma based on the target flux extremum point comprises: When the number of the target magnetic flux extremum points is 1 or the number of the target magnetic flux extremum points is 2 and corresponds to different outermost closed magnetic surfaces, determining the outermost closed magnetic surface corresponding to the target magnetic flux extremum points as the target outermost closed magnetic surface of the plasma; Determining the outermost closed magnetic surface as a first target outermost closed magnetic surface of the plasma under the condition that the number of the target magnetic flux extremum points is 2 and the outermost closed magnetic surfaces corresponding to the two target magnetic flux extremum points are the same; And respectively determining the outermost closed magnetic surface which does not surround the other target magnetic flux extreme point according to each target magnetic flux extreme point in the two target magnetic flux extreme points to obtain a second target outermost closed magnetic surface and a third target outermost closed magnetic surface of the plasma.
  8. 8. The method of any of claims 2 to 4, wherein said determining a target profile among a plurality of alternative profiles of the plasma based on the target flux extremum point and the target outermost closed magnetic surface comprises: Determining a single ring configuration among a plurality of alternative configurations of the plasma as a target configuration when the number of the target magnetic flux extreme points is 1 and the number of the target outermost closed magnetic surfaces is 1; Determining a first double-ring configuration among a plurality of alternative configurations of the plasma as a target configuration under the condition that the number of the target magnetic flux extreme points is 2 and the number of the target outermost closed magnetic surfaces is 2; And determining a second double-ring configuration among a plurality of alternative configurations of the plasma as a target configuration under the condition that the number of the target magnetic flux extreme points is 2 and the number of the target outermost closed magnetic surfaces is 3.
  9. 9. The method of any one of claims 1 to 4, wherein the response characteristic sets corresponding to the plurality of alternative configurations comprise plasma magnetic fluid balance characteristics, vortex characteristics of a reaction chamber, vertical displacement characteristics of plasma and discharge coil characteristics, wherein the plasma magnetic fluid balance characteristics comprise pressure characteristics and polar current characteristics of a plasma ring, total current characteristics of each position of the plasma ring, regularization constraint characteristics, inverse magnetic constraint characteristics, constraint characteristics of safety factors at a magnetic axis, influence characteristics of fixed boundaries on the plasma and topological characteristics; The total current characteristics of each position of the plasma ring corresponding to the first double annular shape comprise the total current characteristics of each position of the two plasma rings; The total current characteristics of each position of the plasma ring corresponding to the second double-ring configuration comprise the total current difference characteristics of each position of the closed magnetic surface and the first plasma ring, the total current difference characteristics of each position of the closed magnetic surface and the second plasma ring, the total current characteristics of each position of the first plasma ring and a target area, and the total current characteristics of each position of the second plasma ring and the target area, wherein the target area is an area outside the first plasma ring and the second plasma in the closed magnetic surface.
  10. 10. The method according to any one of claims 1 to 4, wherein the determining the target state information in the reaction chamber based on the diagnosis information and the response feature set corresponding to the target configuration for performing a balanced inversion process includes: And based on the diagnosis information, combining the response feature set corresponding to the target configuration and the weight of each response feature in the response feature set, and performing balanced inversion processing to obtain the target state information in the reaction chamber.
  11. 11. The method according to claim 10, wherein the method further comprises: Determining reference state information in the reaction chamber by aiming at image information acquired by plasmas in the reaction chamber in the nuclear fusion reaction process, comparing the target state information with the reference state information, and adjusting the weight of each response characteristic in the response characteristic set based on the comparison result; And/or after the target state information in the reaction chamber is determined by carrying out balance inversion processing based on the diagnosis information and the response feature set corresponding to the target configuration, determining target diagnosis information corresponding to each diagnosis component of the nuclear fusion reaction device based on the target state information, comparing actual diagnosis information of each diagnosis component with the target diagnosis information, and adjusting the weight of each response feature in the response feature set based on the comparison result.
  12. 12. The method according to any one of claims 1 to 4, wherein the determining the target state information in the reaction chamber based on the diagnosis information and the response feature set corresponding to the target configuration for performing a balanced inversion process includes: assigning a value to each response feature in the response feature set corresponding to the target configuration based on the initial magnetic flux information corresponding to the target configuration; Performing balance inversion processing based on the diagnosis information and the assigned response characteristic set, determining system parameters of the nuclear fusion reaction device, and determining updated magnetic flux information based on the system parameters; And when the convergence condition is determined to be satisfied based on the updated magnetic flux information and the initial magnetic flux information, determining the updated magnetic flux information as initial magnetic flux information, and re-executing the steps of assigning and then performing the assignment for each response feature in the response feature set corresponding to the target configuration based on the initial magnetic flux information corresponding to the target configuration until the convergence condition is satisfied, and determining the target state information in the reaction chamber based on the updated magnetic flux information.
  13. 13. A device for determining state information in a reaction chamber during a nuclear fusion reaction, the device comprising: the acquisition module is used for acquiring the diagnosis information of the nuclear fusion reaction device in the nuclear fusion reaction process; A first determination module for determining a target configuration among a plurality of alternative configurations of the plasma based on the diagnostic information, wherein the plurality of alternative configurations includes a single configuration, a first dual configuration including two independent plasma rings, and a second dual configuration including two plasma rings in one closed magnetic surface; And the second determining module is used for carrying out balance inversion processing based on the diagnosis information and a response characteristic set corresponding to the target configuration to determine target state information in the reaction chamber, wherein the response characteristic set comprises a plurality of response characteristics reflecting the relation between the diagnosis information and the state information, and the target state information comprises distribution information of plasma and distribution information of a magnetic field in the reaction chamber.
  14. 14. A computing device includes a memory and a processor; The memory is for storing a computer program/instruction, the processor being for executing the computer program/instruction, the program/instruction when executed by the processor implementing the method of any one of claims 1 to 12.
  15. 15. A computer readable storage medium, characterized in that a computer program/instruction is stored, which, when executed by a processor, implements the method of any of claims 1 to 12.

Description

Method and device for determining state information in reaction chamber in nuclear fusion reaction process Technical Field The application relates to the technical field of nuclear fusion, in particular to a method for determining state information in a reaction chamber in the nuclear fusion reaction process, and also relates to a device for determining state information in the reaction chamber in the nuclear fusion reaction process, a computing device, a computer readable storage medium and a computer program product. Background The nuclear fusion technology is widely studied because of the advantage of generating a large amount of clean energy, and the nuclear fusion reaction is realized by using a nuclear fusion reaction device (such as a tokamak device) to correspondingly control plasma so as to achieve fusion conditions. In general, it is necessary to determine state information (such as plasma morphology, magnetic field distribution, etc.) in the reaction chamber at various times during the nuclear fusion reaction. Based on the actual state information in the reaction chamber at the present moment and the subsequent requirements of the nuclear fusion reaction, the information such as the current applied to the corresponding components in the nuclear fusion reaction device can be adjusted. However, the limitation of determining the state information in the reaction chamber in the nuclear fusion reaction process is high at present, and the accurate determination of the state information is difficult to realize at all times in the nuclear fusion reaction process. Disclosure of Invention The application provides a method for determining state information in a reaction chamber in the process of nuclear fusion reaction, which can realize the accurate determination of corresponding state information in the reaction chamber at all times and reduce the limitation of determining the state information in the reaction chamber in the process of nuclear fusion reaction. The application also relates to a device for determining the state information in a reaction chamber during a nuclear fusion reaction, a computing device, a computer-readable storage medium and a computer program product. According to a first aspect of an embodiment of the present application, there is provided a method for determining state information in a reaction chamber during a nuclear fusion reaction, the method including: acquiring diagnostic information of a nuclear fusion reaction device in the nuclear fusion reaction process; Determining a target configuration among a plurality of alternative configurations of the plasma based on the diagnostic information, wherein the plurality of alternative configurations comprises a single ring configuration, a first double ring configuration comprising two independent plasma rings, and a second double ring configuration comprising two plasma rings in one closed magnetic plane; And carrying out balanced inversion processing based on the diagnosis information and a response characteristic set corresponding to the target configuration to determine target state information in the reaction chamber, wherein the response characteristic set comprises a plurality of response characteristics reflecting the relation between the diagnosis information and the state information, and the target state information comprises distribution information of plasma and distribution information of a magnetic field in the reaction chamber. According to a second aspect of an embodiment of the present application, there is provided a device for determining status information in a reaction chamber during a nuclear fusion reaction, the device comprising: the acquisition module is used for acquiring the diagnosis information of the nuclear fusion reaction device in the nuclear fusion reaction process; A first determination module for determining a target configuration among a plurality of alternative configurations of the plasma based on the diagnostic information, wherein the plurality of alternative configurations includes a single configuration, a first dual configuration including two independent plasma rings, and a second dual configuration including two plasma rings in one closed magnetic surface; And the second determining module is used for carrying out balance inversion processing based on the diagnosis information and a response characteristic set corresponding to the target configuration to determine target state information in the reaction chamber, wherein the response characteristic set comprises a plurality of response characteristics reflecting the relation between the diagnosis information and the state information, and the target state information comprises distribution information of plasma and distribution information of a magnetic field in the reaction chamber. According to a third aspect of the present application there is provided a computing device comprising a memory and a processor; The memory is used for