Compact Fusion Reactor Magnetic Coil Design

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Solution Overview

Problem

Traditional fusion reactors are large and complex, making them unsuitable for mounting on vehicles or deployment in decentralized power systems, limiting their applications and usability.

Innovation Solution

A compact fusion reactor design featuring two internal magnetic coils, a center magnetic coil, and a plurality of encapsulating magnetic coils, allowing for the variation of electrical currents to heat plasma, which is confined within a magnetic wall, enabling a smaller, more efficient, and cost-effective fusion reactor.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If traditional fusion reactor designs are used, then plasma confinement and fusion power generation are achieved, but the reactor size and complexity become prohibitively large for vehicle mounting or decentralized deployment

Engineering Contradiction:
Improvereactor sizeVSAvoidplasma confinement stability
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The magnetic confinement system is divided into multiple independent coil assemblies (toroidal field coils, poloidal field coils, and central solenoid) that can be separately designed, positioned, and controlled. This segmentation allows for optimized plasma confinement in each region while reducing overall system complexity and enabling modular deployment configurations suitable for various applications including vehicle mounting.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The reactor employs dynamic control of magnetic field parameters through variable current supplies to the magnetic coils, allowing real-time adjustment of plasma confinement conditions. The magnetic configuration can be dynamically changed to maintain stability during different operational phases, addressing the reliability concern while enabling compact design through adaptive control rather than oversized static components.

Inventive Principle:
Principle #15Dynamics

2Power

If traditional fusion reactor designs are used, then fusion power is generated, but the device complexity and manufacturing cost increase significantly

Engineering Contradiction:
Improvefusion power generationVSAvoidreactor structure complexity
Core Design Contradiction:
PowerVSDevice complexity

Solution Approach 1:

The magnetic coil system serves multiple functions simultaneously: toroidal field coils provide both magnetic confinement and plasma heating through induced currents, poloidal field coils control plasma shape and position, and the central solenoid provides both magnetic drive and diagnostic access. This multi-functionality reduces the number of separate components needed, simplifying the overall device structure while maintaining effective fusion power generation.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The reactor utilizes changes in magnetic field parameters (strength, configuration, timing) to control different aspects of plasma behavior during the fusion cycle. By dynamically adjusting field parameters rather than relying on fixed complex mechanical structures, the system achieves effective plasma control with simpler overall device architecture, reducing manufacturing complexity and cost.

Inventive Principle:
Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

The compact design allows for the creation of a fusion reactor that is small enough to be mounted on vehicles or used in decentralized power systems, providing a scalable and cost-effective solution for generating power, with improved global MHD stability and reduced particle losses.

Implementation Method 1

Magnetic fields are used to confine the plasma within a magnetic wall

Methodology Applied
Scientific EffectMagnetic field: Magnetic Field

Implementation Method 2

heating plasma for fusion power using magnetic field oscillation

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentEP2981969B1Heating plasma for fusion power using magnetic field oscillation
Publication Date: 2018.06.06 LOCKHEED MARTIN CORP
  • EP2981969B1 patent drawingFigure 1
  • EP2981969B1 patent drawingFigure 2
  • EP2981969B1 patent drawingFigure 3A

AI summary

In one embodiment, a fusion reactor includes two internal magnetic coils suspended within an enclosure, a center magnetic coil coaxial with the two internal magnetic coils and located proximate to a midpoint of the enclosure, a plurality of encapsulating magnetic coils coaxial with the internal magnetic coils, and two mirror magnetic coil coaxial with the internal magnetic coils. The fusion reactor is configured to vary electrical currents supplied to the magnetic coils to heat the plasma confined within the magnetic wall.