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39 results about "Fusion power" patented technology

Fusion power is a proposed form of power generation that would generate electricity by using heat from nuclear fusion reactions. In a fusion process, two lighter atomic nuclei combine to form a heavier nucleus, while releasing energy. Devices designed to harness this energy are known as fusion reactors.

Adaptive edge-localized 3D magnetic field control system for tokamak fusion reactors.

Development of technologies for effectively suppressing edge localized modes (ELM), maintaining core plasma stability, controlling plasma rotation, adjusting edge transport barriers, achieving smooth transitions between different plasma regimes, minimizing error magnetic fields, sustaining plasma for long periods, stabilizing fusion power, controlling plasma impurities, and optimizing plasma-wall interactions simultaneously in tokamak fusion reactors. [Solution] We provide an adaptive edge-localized 3D magnetic field control system that organically links a real-time plasma state monitoring system, a 3D magnetic field response prediction model, a flexible 3D coil system, an adaptive control algorithm, a plasma regime transition management system, an integrated control interface, a high-precision magnetic diagnostic system, a fusion power control system, a plasma impurity control system, and a plasma-wall interaction optimization system.
Owner:NYU-YO-KU ZENERAL GURU-PU INKU

Fusion power generation system, power generation control method, storage medium and controller

The invention discloses a fusion power generation system, a power generation control method, a storage medium and a controller, and relates to the technical field of fusion energy. The fusion power generation system comprises a steam generator set, a plurality of Tokamak devices and a plurality of thermal conversion units, the Tokamak devices and the thermal conversion units are in one-to-one correspondence, each thermal conversion unit is provided with a first channel and a second channel, and the Tokamak devices and the first channels of the corresponding thermal conversion units form a cladding cooling loop. The steam generator set and a plurality of second channels connected in sequence form a power generation loop; wherein the plurality of Tokamak devices are configured to operate in an alternating or complementary manner; the thermal conversion units are configured to receive heat from the corresponding cladding cooling loops and convert working media in the power generation loops into steam through the heat so as to drive the steam generator set to generate power. According to the system, the plurality of Tokamak devices operate in an alternating or complementary mode, so that heat loss can be reduced, the power generation efficiency is improved, and the plasma control difficulty is reduced.
Owner:聚变新能(安徽)有限公司

Primary and secondary fusion built-in isolation knife circuit breaker

The invention discloses a primary and secondary fusion built-in isolation knife circuit breaker, and relates to the field of primary and secondary fusion power distribution equipment for a power distribution network, the primary and secondary fusion built-in isolation knife circuit breaker comprises a pole-mounted circuit breaker and a mechanism box, the body of the pole-mounted circuit breaker is integrated with three current transformers, and the mechanism box is fixedly connected to one side of the pole-mounted circuit breaker; three electrical interface holes used for containing current transformers are formed in the box wall of the mechanism box, an isolation disconnecting link unit is arranged in the mechanism box, the isolation disconnecting link unit is internally arranged and integrated in the mechanism box, the isolation disconnecting link unit and a pole-mounted circuit breaker form an integrated design, the overall structural layout is greatly simplified, the structure is simple, and the cost is low. And the three current transformers integrated on the pole-mounted circuit breaker body are directly butted with the moving contact mechanism through the electrical interface holes preset in the mechanism box, so that the connection is convenient, the contact between the electrical connection part and the external environment is reduced, the erosion of environmental factors such as outdoor wind and rain, dust, corrosive gas and the like is effectively isolated, and the operation stability is ensured.
Owner:XINXIANG POWER SUPPLY COMPANY STATE GRID HENAN ELECTRIC POWER +1

Power management systems for fusion energy devices

PCT designated stageWO2026111786A2Batteries circuit arrangementsComputer hardwareFusion power
Power management systems for fusion energy devices are provided. Scalable and modular systems which enable a fusion energy device to be powered by conventional power grids are provided through an array of energy storage units configured to exhibit a suitable discharge rate, an array of DC / DC modules coupled to the array of energy storage units, and an array of fast discharge units coupled to the array of DC / DC modules.
Owner:COMMONWEALTH FUSION SYSTEMS LLC

Fusion power system, power generation control method, storage medium, and controller

The application discloses a fusion power generation system, a power generation control method, a storage medium and a controller, and relates to the technical field of fusion energy. The fusion power generation system comprises a steam generator unit, a plurality of tokamak devices corresponding to the steam generator unit in one-to-one correspondence and a plurality of heat conversion units, the heat conversion unit is provided with a first channel and a second channel, the tokamak device and the first channel of the corresponding heat conversion unit form a blanket cooling loop, and the steam generator unit and a plurality of sequentially connected second channels form a power generation loop; wherein the plurality of tokamak devices are configured to operate in an alternating or complementary manner; the heat conversion unit is configured to receive heat from the corresponding blanket cooling loop, and convert the working medium in the power generation loop into steam by using the heat to drive the steam generator unit to generate power. The system can reduce heat loss, improve power generation efficiency and reduce the difficulty of plasma control by operating the plurality of tokamak devices in an alternating or complementary manner.
Owner:聚变新能(安徽)有限公司

Fusion power plant system based on multi-reactor one-machine and horizontal steam generator

The invention relates to the technical field of nuclear fusion power generation, in particular to a fusion power plant system based on multiple reactors, one machine and a horizontal steam generator. The following technical scheme is provided mainly for solving the problems that a one-reactor one-machine matching mode adopted by an existing fusion power plant cannot adapt to a large-capacity and high-parameter steam turbine set, the system is complex and high in cost due to the fact that an additional energy storage system is depended on, and economical and stable power generation is difficult to achieve. Comprising a double-pile energy supply unit, a single-unit power generation unit, a loop driving unit and an alternate switching control unit, and the double-pile energy supply unit and the single-unit power generation unit form a switchable energy supply and power generation loop through the alternate switching control unit and the loop driving unit. Through the design of multi-reactor one-machine matching and multi-reactor alternate operation, a high-capacity unit can be adapted without additional energy storage, the problems that an existing scheme is low in efficiency, high in cost and complex in system are solved, and the economical efficiency and reliability of a fusion power plant are remarkably improved.
Owner:FUSION ENERGY (HEFEI) ENGINEERING DESIGN INSTITUTE CO LTD

Assembly device for flexible gravity support device

The invention relates to the field of assembly of fusion energy experimental device parts, and discloses an assembly device for a flexible gravity supporting device. The two assembling mechanisms are fixed to the supporting platform, each assembling mechanism comprises a lateral limiting part and a lower limiting part, a limiting groove is formed in each lower limiting part, and each lower limiting part is provided with a plurality of fixing structures; the assembling mechanism further comprises an upper limiting part, and the upper limiting part is used for being fixedly assembled with the base plate and then assembled with the corresponding flexible plate in a matched mode so that the spacing distance between the outer side edge of the base plate and the outer side edge of the adjacent flexible plate can be the target distance. The assembling mechanism further comprises a clamping part, the clamping part comprises a fixing rod and a plurality of clamping blocks, and the clamping blocks are suitable for being connected with the adjacent flexible plates, facing the side of the lateral limiting part, of the corresponding base plate in an abutting mode so that the corresponding flexible plates can be clamped. The flexible gravity supporting device is assembled through the assembling device, assembling is easy, the assembling precision can be improved, and the assembling efficiency of the gravity supporting device can be improved.
Owner:聚变新能(安徽)有限公司 +1

Cryogenic pumps for fusion devices and fusion devices

This invention discloses a cryogenic pump for a fusion device and a fusion device. The cryogenic pump, relating to the field of fusion devices, includes: a cryogenic pump body defining an adsorption space, and a first medium inlet communicating with the adsorption space; a valve assembly disposed on the cryogenic pump body for opening or closing the first medium inlet; and at least one adsorption component, at least a portion of which is disposed within the adsorption space for adsorbing gas within the adsorption space, and which is detachably disposed on the cryogenic pump body. Therefore, by detachably disposing of the adsorption component on the cryogenic pump body, the adsorption component can be replaced individually, which helps reduce the maintenance cost of the cryogenic pump, thereby reducing the production cost of fusion energy and improving economic efficiency. Furthermore, when replacing a single adsorption component, the entire adsorption process can be continuously replaced.
Owner:聚变新能(安徽)有限公司

Recirculated fluidized pebble bed blanket for tritium breeding and heat recovery in a fusion power plant

PCT designated stageWO2026178212A1Nuclear engineeringFusion power
A breeder blanket is disposed within a stellarator. The breeder blanket defines a breeder zone through which a particle and a flow gas flows. The particle interacts with a neutron generated by a fusion reaction within the stellarator to generate heat. The flow gas absorbs the heat. A separator at an outlet of the breeder blanket separates the flow gas from the particle. The heat in the flow gas is used to generate power.
Owner:TYPE ONE ENERGY GROUP INC

Non-stop power supply control method and system for a twin nuclear fusion power supply

PendingCN122315899AData ingestionFusion power
This invention belongs to the field of power control technology and discloses a method and system for uninterrupted power supply control of the main core of a dual-core fusion power supply. The method includes: collecting historical power consumption data and equipment operating cycle data from the load, and combining this with real-time operating status data to extract the predicted peak power, peak arrival time, and cumulative energy demand; acquiring the real-time state of charge and rated capacity of the sub-core, calculating the expected power supply duration based on the cumulative energy demand, and generating a feedforward power supply trigger signal; pre-starting the main core to preheat to standby mode and pre-setting the ready states of each switch, and determining the target output power and power ramp-up rate of the main core; when the real-time state of charge of the sub-core drops to a preset homing charge threshold, controlling the main core based on the target output power and power ramp-up rate. This invention can effectively improve the power supply continuity, voltage stability, and system safety of a dual-core fusion power supply under complex load conditions.
Owner:XIANNING POWER SUPPLY COMPANY OF STATE GRID HUBEIELECTRIC POWER

Fusion power supply equipment cooling channel water resistance intelligent test system and method thereof

The invention provides a fusion power supply equipment cooling channel water resistance intelligent test system and method, and relates to the technical field of magnet power supply equipment cooling and fluid testing, and the system comprises a test loop communicated with tested equipment. The flow sensor is used for collecting flow and temperature of a medium in a test loop and pressure difference between two ends of tested equipment; the control and data processing module is provided with a temperature control unit which is coupled in a quick connection mode; carrying out cross-temperature zone temperature regulation on the medium; the control and data processing module is configured to receive the data acquired by the acquisition module and perform temperature compensation based on medium density and viscosity on the pressure difference according to the temperature of the medium; calculating the equivalent flow velocity at the measured equipment; and on the basis of the data subjected to temperature compensation and diameter-variable normalization processing according to the equivalent flow velocity, generating a differential pressure-flow relation curve family of the cross-temperature zone. And an accurate, efficient and traceable data basis is provided for design and acceptance inspection of cooling loops of equipment such as a fusion power supply.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Electromagnetic disturbance field circuit hybrid modeling method and system for primary and secondary fusion switch

The invention discloses an electromagnetic disturbance field circuit hybrid modeling method and system for a primary and secondary fusion switch, and the method comprises the steps: building a three-dimensional full-wave model of the primary and secondary fusion power distribution switch, setting the positions of an electric / magnetic field probe and a connection port, and obtaining the response characteristics of the port; based on the response characteristics, converting the three-dimensional full-wave model into a black box model of a primary and secondary fusion power distribution switch in a circuit; considering the influence of the lightning stroke position on the radiation electromagnetic disturbance characteristic frequency, and building a distribution parameter circuit model of the transmission line; based on the response characteristics, the black box model is imported into the distributed parameter circuit model for simulation, and voltage and current of a connection port are obtained; and the voltage and the current are fed back to the three-dimensional full-wave model, and electromagnetic disturbance field and circuit hybrid modeling is completed. The problem that simulation time is too long or a calculation result is invalid when a three-dimensional full-wave model or a circuit model is singly used is solved.
Owner:CHINA ELECTRIC POWER RESEARCH INSTITUTE CO LTD +1

Improvements in and relating to tritium extraction and recovery in fusion power systems

PendingUS20260066140A1Nuclear energy generationDialysisFusion powerLiquid state
An apparatus and method for integrated tritium extraction and recovery in a fusion power system includes combining-in a tritium extraction unit-a fluid tritium breeding composition with a second fluid to generate a combined fluid undergoing two phase flow, and extracting tritium from the breeding composition in the two-phase flow by simultaneous processes of permeation across a solid membrane and tritium transfer onto the second fluid (i.e., gas-liquid or liquid-liquid contacting).
Owner:UK ATOMIC ENERGY AUTHORITY

Scalable, Modular Warp Reactor for Generating Ultra-Intense High Energy Density Charged Particle Rings for Fusion Energy Production, Combined Radiation Environments, Advanced Propulsion and Space-time Metric Engineering

A compact, modular, and scalable pulsed power-driven radiation source system utilizes Dense Plasma Focus assemblies and Ion Ring Marx Generators in a novel configuration to generate ultra-intense charged particle beams. The system's WARP core integrates coaxially aligned, face-to-face Dense Plasma Focus assemblies with reflex triodes and magnetic flux compression to achieve significantly enhanced energy outputs. The invention enables efficient energy production, advanced propulsion capabilities, and new avenues for high-energy physics research while maintaining a reduced physical footprint compared to traditional accelerators. The system achieves GeV-level particle energies through controlled plasma and charged particle ring compression and acceleration, offering applications in nuclear fusion, advanced space propulsion, and radiographic analysis.
Owner:NATIONAL NUCLEAR SECURITY ADMINISTRATION U S DEPARTMENT OF ENERGY

A multi-sensor fusion power grid steel structure anticorrosion coating quantitative early warning online monitoring method and system

PendingCN122410208AData packFusion power
This invention relates to the field of steel structure anti-corrosion coating monitoring technology, and particularly to a multi-sensor fusion-based online monitoring method and system for quantitative early warning of anti-corrosion coatings on power grid steel structures. The method includes: deploying sensor components in the monitored area of ​​the power grid steel structure and collecting monitoring data, including coating electrochemical parameters, substrate corrosion parameters, environmental parameters, and electromagnetic field parameters; determining the coating degradation degree based on the coating electrochemical parameters and substrate corrosion parameters; determining an environmental corrosion correction coefficient based on the environmental parameters; determining an electromagnetic field influence coefficient based on the electromagnetic field parameters; and generating a coating health status assessment result based on the coating degradation degree, environmental corrosion correction coefficient, and electromagnetic field influence coefficient. The coating health status assessment result generated by this invention can reflect the degradation state of the anti-corrosion coating itself and clarify the degree of influence of the power grid electromagnetic field on the coating degradation process, thus providing information dimensions that better meet the needs of power grid steel structure anti-corrosion operation and maintenance.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +1

Reactor system, laser generation system and fusion reactor system for space applications

The utility model relates to a reactor system, a laser generation system and a fusion reactor system for space application. The reactor system comprises a reactor, at least one satellite system, an optical cavity, an optical path modifying device, at least one pair of reflecting mirror devices, a timing device and a space driving device. The present disclosure provides a fusion energy system configured with a high intensity pulsed laser system in a compact and spatially efficient system; the high-intensity pulse laser system provides enough energy to ignite and maintain fusion energy configured in space application; the present disclosure provides the advantage of using this high intensity laser in space to produce fusion energy through efficient size, weight and cost.
Owner:BLUE LASER FUSION INC

Reduced neutron emission target for fusion energy generation

A fuel target device for an inertial confinement fusion process. The device comprises a center region is comprising a first fuel layer of deuterium-tritium-lithium ((DT)(1-x)Lix, 0<x<0.5) fuel characterized by a higher or equal ignition temperature in comparison with a lowest ignition temperature of deuterium-tritium (DT). The device comprises a second fuel layer of deuterium-tritium (DT) fuel characterized by the lowest ignition temperature is surrounding the center region, and a third fuel layer comprising an outer region of a pure hydrogen (H2) or a proton rich boron (pyB(1-y)11, 1>y>0.5) material is surrounding the deuterium-tritium (DT) fuel such that the deuterium-tritium (DT) fuel is sandwiched between the deuterium-tritium-lithium ((DT)(1-x)Lix, 0<x<0.5) fuel and the pure hydrogen or proton rich boron (pyB(1-y)11, 1>y>0.5) material.
Owner:BLUE LASER FUSION INC

Multi-energy fusion power generation scheduling method and system based on power gap prediction

The invention discloses a multi-energy fusion power generation scheduling method and system based on power gap prediction. The method comprises the steps that a power gap curve in a future preset time period is calculated based on collected environmental meteorological data and historical load data; extracting a power gap amplitude and a corresponding gap duration based on the power gap curve; the gap duration is compared with a preset time threshold value, a comparison result is obtained, and the time threshold value is used for defining the time limit of the short-time power gap; and according to a comparison result, determining a target response main body matched with the gap duration, and generating a dynamic operation strategy based on the target response main body. Compared with the prior art, the power gap prediction precision, the matching degree of the response strategy and the gap duration and the equipment operation economy of the multi-energy system can be remarkably improved, and the technical defects that in a traditional scheme, power gap prediction deviation is large, the response strategy and the gap duration are not matched, and equipment is frequently started and stopped, and losses are high are overcome.
Owner:RUNJIAN COMM

Power management systems for fusion energy devices

PCT designated stageWO2026111786A3Computer hardwareFusion power
Power management systems for fusion energy devices are provided. Scalable and modular systems which enable a fusion energy device to be powered by conventional power grids are provided through an array of energy storage units configured to exhibit a suitable discharge rate, an array of DC / DC modules coupled to the array of energy storage units, and an array of fast discharge units coupled to the array of DC / DC modules.
Owner:COMMONWEALTH FUSION SYSTEMS LLC

Fusion power supply of railway vehicle and railway vehicle

The invention firstly provides a fusion power supply of a railway vehicle and the railway vehicle, the railway vehicle comprises a waste discharge device, the fusion power supply is arranged in the waste discharge device, and a waste discharge fan of the waste discharge device is used for heat dissipation. The invention further provides a railway vehicle. According to the fusion power supply of the railway vehicle and the railway vehicle, the fusion power supply and the waste discharge device are integrated, the waste discharge fan of the waste discharge device is used for cooling the fusion power supply, a cooling device does not need to be independently arranged for the fusion power supply, and the space of the waste discharge device can be fully utilized; the available space of the vehicle is improved.
Owner:SHANDONG LONGERTEK TECH CO LTD

A passive buffer circuit for fusion power supply and the fusion power supply

ActiveCN121261523BPower conversion systemsCapacitanceFusion power
This invention discloses a passive buffer circuit for fusion power supplies and a fusion power supply, belonging to the field of power electronics technology. The passive buffer circuit includes: a coupling inductor L. k Buffer resistor R, capacitor C, diode D s and capacitor C s The capacitor C and the coupling inductor L k The primary side and the buffer resistor R are connected in series and then in parallel to the source and drain of the fusion power supply's IGBT. The capacitor C s Parallel to the coupled inductor L k The diode D at both ends of the secondary side s The positive and negative terminals are respectively connected to the coupled inductor L k The non-identical terminals on the secondary and primary sides. This invention introduces an LC resonant network into the traditional RCD structure to reconstruct the energy dissipation path, effectively reducing peak power and temperature rise, improving heat distribution, and maintaining the high reliability of the passive structure. It is a passive optimization scheme with a simple structure that requires no additional control.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +1

Fusion power plant system based on multi-reactor one-machine and heat storage heat exchanger

The invention relates to the technical field of nuclear fusion power generation, in particular to a fusion power plant system based on multiple reactors, one machine and a heat storage heat exchanger. Aiming at the problems of unreasonable matching of reactors and engines, dependence on a large-scale energy storage system, poor switching reliability and insufficient passive safety, the invention provides the following technical scheme: the system comprises a double-reactor energy supply unit, a heat storage and heat exchange unit, a single-unit power generation unit, a loop driving unit and an alternate switching control unit; the double-reactor energy supply unit comprises a Tokamak reactor A and a Tokamak reactor B which are symmetrical in structure; and the heat storage heat exchange unit comprises a heat storage heat exchanger XH01 with a built-in heat storage chamber A and a built-in heat storage chamber B. The multi-pile one-machine matching and heat storage heat exchanger design is adopted, pulse fluctuation can be balanced without large-scale energy storage, a mature large-capacity unit is adapted, the power generation efficiency and safety are improved, and the development of fusion power generation is promoted.
Owner:FUSION ENERGY (HEFEI) ENGINEERING DESIGN INSTITUTE CO LTD

Assembly device for a flexible gravity support device

The application relates to the field of assembly of fusion energy experimental device components, and discloses an assembly device for a flexible gravity support device, which comprises a support platform, two assembly mechanisms fixed to the support platform, a lateral limiting portion and a lower limiting portion of the assembly mechanism, a limiting groove formed in the lower limiting portion, and a plurality of fixing structures in the lower limiting portion; the assembly mechanism further comprises an upper limiting portion, which is used for cooperating with the corresponding flexible plate after being fixedly assembled with the gasket plate, so that the interval distance between the outer side edges of the gasket plate and the adjacent flexible plate is the target distance; the assembly mechanism further comprises a clamping portion, which comprises a fixing rod and a plurality of clamping blocks, and the clamping blocks are suitable for abutting against the adjacent flexible plate on the side of the corresponding gasket plate facing the lateral limiting portion, so that the corresponding flexible plate is clamped. The flexible gravity support device is assembled through the assembly device, so that the assembly is simple, the assembly precision is improved, and the assembly efficiency of the gravity support device is improved.
Owner:聚变新能(安徽)有限公司 +1

Laser fusion system

The utility model provides a laser fusion system. The laser fusion system comprises a reactor shell, a reaction area and a peripheral area, a plurality of cavity regions, the plurality of cavity regions coupled to an interior region of the reactor housing; a pair of mirrors; a laser light source; and a tube opening region. The laser fusion system provides sufficient energy to ignite and maintain fusion energy within the reactor, with the advantage of generating fusion energy with efficient size, weight, and cost.
Owner:BLUE LASER FUSION INC

Partial ionization centrifuge enabling differential pumping and lithium isotope separation for fusion energy

PCT designated stageWO2026136752A2Isotope separationPlasma techniqueNuclear engineeringFusion power
A fuel processing system for a magnetic confinement fusion device, such as a fusion power reactor, is provided. The processing system includes a plasma centrifuge differential pump having a single outlet. When connected to an output of the fusion containment device, such as via a divertor, the plasma centrifuge differential pump maintains a pressure within the fusion device, thus increasing the tritium burn efficiency. The plasma centrifuge differential pump also allow for separation and removal of helium and other materials from the plasma used by the fusion device.
Owner:MARATHON FUSION INC

Ai governance and trust attribution for fusion energy control systems

A governance system for artificial-intelligence-driven fusion energy control assigns trust-weighted authority to autonomous decisions, correlates operational outcomes to control actions, and enables automated rollback. The system generates immutable governance records suitable for regulatory, insurance, and grid-scale deployment of fusion energy systems.
Owner:BICKERSTAFF III GEORGE WILLIAM

Intelligent monitoring system for early fire prevention of power distribution room with multi-modal fusion

The application discloses a kind of early fire prevention intelligent monitoring systems of multi-modal fusion power distribution room, specifically related to fireproof intelligent monitoring technical field, the present application obtains heat release particle concentration by calculating the light intensity of particle angular scattering, combined with particle concentration and diameter dynamic adjustment scattering angle, when heat release particle concentration exceeds preset threshold, constructs double-branch symmetric fusion network, and fuses visible light and infrared image branch.By global attention mechanism, the spatial dependence of power equipment is captured, and the segmentation result of the fusion network is output.The system also determines whether to enhance the visible light image according to the particle concentration and the picture light intensity.Finally, the segmentation result, particle concentration trend and temperature change data are fused to trigger fire warning.The system realizes efficient early fire warning for power distribution room, and improves the intelligence and precision of fire monitoring.
Owner:ZHONGYUAN ELECTRIC EQUIPMENT (HANGZHOU) TECHNOLOGY CO LTD

A method and system for interlocking protection of high-voltage DC circuit breakers for fusion power supplies

PendingCN122092143AEliminate errorsEliminate the hidden dangers of dynamic voltage equalizationEmergency protective arrangements for automatic disconnectionDc circuit breakerControl signal
This invention discloses a method and system for interlocking protection of a high-voltage DC circuit breaker in a fusion power supply, relating to the field of nuclear fusion auxiliary heating power supply technology. Specifically, it includes: constructing a series-connected light-emitting circuit by sequentially connecting the light-emitting elements of N fiber optic transmitters used to drive N series-connected IGBTs end-to-end; configuring a bypass topology by connecting a power switch in parallel across the series-connected light-emitting circuit, with impedance elements included in the circuit; driving the power switch to operate via a single control signal from the central control unit, and using the on-state of the power switch to bypass the series-connected light-emitting circuit to generate an extinction signal, which serves as a synchronous turn-off trigger command for the N series-connected IGBTs. This invention achieves fault safety and switch synchronization through physical series and bypass control at the hardware level, effectively solving the problems of voltage imbalance and single-point failure propagation under distributed control. It aims to improve the safety of fusion auxiliary heating power supply systems.
Owner:HEFEI INSTITUTE OF PHYSICAL SCIENCE CHINESE ACADEMY OF SCIENCES

Passive buffer circuit for fusion power supply and fusion power supply

ActiveCN121261523APower conversion systemsCapacitanceFusion power
The invention discloses a passive buffer circuit for a fusion power supply and the fusion power supply, and belongs to the technical field of power electronics, the passive buffer circuit comprises a coupling inductor Lk, a buffer resistor R, a capacitor C, a diode Ds and a capacitor Cs; the capacitor C, the primary side of the coupling inductor Lk and the buffer resistor R are connected in series and then connected to a source electrode and a drain electrode of an IGBT of the fusion power supply in parallel, the capacitor Cs is connected to the two ends of the secondary side of the coupling inductor Lk in parallel, and the positive electrode and the negative electrode of the diode Ds are connected to the non-dotted terminals of the secondary side and the primary side of the coupling inductor Lk respectively. The LC resonance network is introduced into a traditional RCD structure, an energy discharge path is reconstructed, peak power and temperature rise are effectively reduced, heat distribution is improved, meanwhile, high reliability of a passive structure is kept, and the method is a passive optimization scheme which does not need additional control and is simple in structure.
Owner:STATE GRID JIANGSU ELECTRIC POWER CO LTD RESEARCH INSTITUTE +1

Fusion vacuum vessel for mechanical radial insertion and thermally activated sector-to-sector vacuum seals

PCT designated stageWO2025240574A1Electromagnets without armaturesEngine sealsMetal alloyFusion power
A fusion power plant is described which includes a plurality of toroidal-shaped vacuum vessel (VV) segments for use in a liquid immersion blanket. The fusion power plant also includes flanges of inter-coil ports having metal alloys compatible with the fusion environment. Poloidally continuous thin gaskets separate the VV sections. The gaskets are situated at the mating surface interface of one toroidal section to its toroidal neighbor and the gaskets are configured so that the VV sections do not make direct mechanical contact with each other. The gaskets provide electrical isolation of the VV sections, corrosion resistance to the blanket fluid, and intermetallic formation. The gasket is composed of a material that has a melting temperature higher than the operating temperature of the fusion power plant. A thin layer is disposed on the mating surfaces of the VV segments to prevent diffusion bonding and to further electrically insulate adjacent modules.
Owner:MASSACHUSETTS INST OF TECH