Plasma state active control platform and method based on orbital angular momentum electromagnetic field

Abstract

The invention discloses a plasma state active control platform and method based on an orbital angular momentum electromagnetic field, and belongs to the technical field of plasma control. The platform comprises an orbital angular momentum electromagnetic field generation module, an energy and mode coupling module, a plasma region, a plasma state sensing module and a feedback control module. All the modules jointly form a closed-loop control structure, and through angular momentum exchange between an orbital angular momentum electromagnetic field and plasmas, active regulation and control over the macroscopic state, spatial distribution or statistical characteristics of the plasmas are achieved. The method does not depend on a specific device structure, a working frequency band or an implementation mode, has the advantages of being high in response speed, high in control dimension, high in adaptability and the like, and is suitable for a magnetic confinement nuclear fusion device, industrial plasma processing equipment and other plasma systems.

Description

Technical Field

[0001] This invention relates to the field of plasma physics and control technology, specifically to a system platform and method for actively regulating plasma state through orbital angular momentum electromagnetic field. It is applicable to magnetic confinement nuclear fusion devices, industrial plasma processing equipment and other plasma application scenarios that require stabilization or regulation of macroscopic behavior, spatial distribution or statistical characteristics of plasma. Background Technology

[0002] In plasma-related devices, the macroscopic stability and spatial distribution characteristics of plasma have a decisive impact on the device's operational performance. In magnetic confinement fusion devices, fluctuations in plasma state can lead to a decrease in energy confinement performance or even operational interruption; in industrial plasma processing equipment, uneven distribution of plasma parameters will directly affect process consistency and product yield.

[0003] Existing plasma control methods mostly rely on external magnetic field disturbances, input power adjustment, or material injection. These methods generally suffer from problems such as limited response speed, limited control dimensions, insufficient control precision, and difficulty in achieving real-time adaptive control.

[0004] Orbital angular momentum electromagnetic fields (ORMs) are a type of electromagnetic field with a helical phase structure. During their interaction with plasma, they can transfer angular momentum, thereby influencing the plasma's flow state, rotational behavior, and macroscopic distribution characteristics. However, current technology lacks an engineering platform solution that can systematically integrate the generation, coupling injection, plasma state diagnosis, and feedback control of ORMs, forming a stable closed-loop active control system. Summary of the Invention

[0005] (a) Purpose of the invention The purpose of this invention is to provide a plasma state active control platform and method with fast response speed, high control accuracy and adaptive capability, so as to achieve stable regulation of plasma state, spatial distribution optimization or macroscopic behavior adjustment, thereby overcoming the problems of limited control dimensions and difficulty in achieving closed-loop regulation in the prior art.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides an active plasma state control platform based on orbital angular momentum electromagnetic field, comprising: An orbital angular momentum electromagnetic field generation module is used to generate an electromagnetic field carrying adjustable orbital angular momentum parameters, including topological charge number, phase distribution, frequency, power, or a combination thereof. An energy and mode coupling module is used to couple and inject the electromagnetic field carrying orbital angular momentum into the target plasma region in a predetermined mode. The plasma region is the space in which the orbital angular momentum electromagnetic field interacts with the plasma. A plasma state sensing module is used to acquire at least one diagnostic signal that reflects the macroscopic state, spatial distribution, or statistical characteristics of the plasma. The diagnostic signal includes, but is not limited to, density, temperature, flow rate, radiation characteristics, or electromagnetic response. The feedback control module is used to receive the diagnostic signal acquired by the plasma state sensing module and dynamically adjust at least one parameter of the orbital angular momentum electromagnetic field based on the diagnostic signal.

[0007] The orbital angular momentum electromagnetic field generation module, energy and mode coupling module, plasma region, plasma state sensing module and feedback control module together constitute a closed-loop control structure to achieve active regulation of plasma state through angular momentum exchange between the orbital angular momentum electromagnetic field and plasma.

[0008] 2. Methodology and Scheme Based on the above platform, the present invention also provides a method for active control of plasma state based on orbital angular momentum electromagnetic field, comprising the following steps: S1: Acquire diagnostic signals reflecting the plasma state; S2: Determine the target parameters of the orbital angular momentum electromagnetic field based on the diagnostic signal; S3: Generate an orbital angular momentum electromagnetic field carrying the target parameters; S4: The orbital angular momentum electromagnetic field is coupled and injected into the plasma region; S5: Feedback adjustment of the orbital angular momentum electromagnetic field parameters based on changes in plasma state; The above steps constitute a closed-loop control process based on plasma state feedback.

[0009] (III) Beneficial Effects Compared with the prior art, the present invention has at least the following beneficial effects: (1) The plasma state is controlled by electromagnetic field, and the response speed is fast; (2) The orbital angular momentum parameter is introduced as a new control dimension, resulting in a high degree of control freedom; (3) Combining real-time diagnosis and feedback control to achieve adaptive closed-loop regulation; (4) The platform has strong versatility and is easy to integrate with various plasma devices, and has good prospects for engineering application and industrialization. Attached Figure Description

[0010] Figure 1This is a block diagram of the closed-loop system structure of the plasma state active control platform based on orbital angular momentum electromagnetic field of the present invention, illustrating the functional connection relationship and closed-loop control path between the orbital angular momentum electromagnetic field generation and parameter modulation module, energy and mode coupling module, plasma region, plasma state sensing module and feedback control module. Figure 2 This diagram illustrates the relationship between the modulation and output of the orbital angular momentum electromagnetic field parameters, showing the process of setting and modulating the orbital angular momentum parameters and generating the electromagnetic field carrying the orbital angular momentum. Figure 3 The diagram shows the active plasma state control method based on the platform of this invention, illustrating the closed-loop control process consisting of parameter determination based on plasma state diagnostic signals, generation of orbital angular momentum electromagnetic field, coupling injection, and feedback adjustment. Detailed Implementation

[0011] The following embodiments are used to illustrate the technical solutions of the present invention, but do not constitute a limitation on the scope of protection of the present invention.

[0012] Example 1: In a type of plasma device, an electromagnetic field carrying specific orbital angular momentum parameters is generated by an orbital angular momentum electromagnetic field generation module and injected into the plasma region via an energy and mode coupling module; the plasma state is acquired in real time by a plasma state sensing module, and the orbital angular momentum parameters are adjusted by a feedback control module to achieve stable control of the macroscopic state of the plasma.

[0013] Example 2: In a type of industrial plasma treatment equipment, based on the platform of this invention, the orbital angular momentum electromagnetic field parameters are dynamically adjusted through a closed-loop feedback method to optimize the spatial distribution of plasma, thereby improving process consistency and treatment effect.

Claims

1. A plasma state active control platform, characterized in that, include: Orbital angular momentum electromagnetic field generation module; Energy and mode coupling module; Plasma region; Plasma state sensing module; Feedback control module; The orbital angular momentum electromagnetic field generation module, energy and mode coupling module, plasma region, plasma state sensing module and feedback control module together constitute a closed-loop control structure to achieve active regulation of plasma state through angular momentum exchange between the orbital angular momentum electromagnetic field and plasma.

2. The platform according to claim 1, wherein, The orbital angular momentum parameters include topological charge, phase distribution, frequency, power, or combinations thereof.

3. The platform according to claim 1 or 2, wherein, The orbital angular momentum electromagnetic field is an electromagnetic wave, a quasi-electromagnetic wave, or an equivalent field distribution.

4. The platform according to claim 1, wherein, The energy and mode coupling module includes a waveguide structure, an antenna structure, a phase modulation structure, or a combination thereof.

5. The platform according to claim 1, wherein, The feedback control module includes rule-based control algorithms, model predictive control algorithms, or machine learning-based control algorithms.

6. The platform according to claim 1, wherein, The plasma state sensing module is used to acquire density, temperature, flow rate, radiation characteristics, electromagnetic response, or a combination thereof.

7. The platform according to claim 1, wherein, The plasma region is located in a magnetic confinement device, an inertial confinement device, an industrial plasma processing device, or another plasma system.

8. A method for active control of plasma state based on orbital angular momentum electromagnetic field, characterized in that, include: Acquire diagnostic signals reflecting the plasma state; The target parameters of the orbital angular momentum electromagnetic field are determined based on the diagnostic signals. Generate an orbital angular momentum electromagnetic field carrying the target parameters; Couple the orbital angular momentum electromagnetic field to the plasma region; The orbital angular momentum electromagnetic field parameters are adjusted based on feedback from changes in plasma state.

9. The method according to claim 8, wherein, The parameter adjustment is either real-time or near-real-time.

10. A computer-readable storage medium having a computer program stored thereon, which, when executed, performs the method of claim 8 or 9.

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