Abstract: A wind turbine power generating system and method includes a tower, a hub, a plurality of blades connected to the hub, and a rotor connected to the hub. A superconducting generator is coupled to the rotor and includes a plurality of superconductive coils. A nacelle is mounted atop the tower, with the superconducting generator housed within the nacelle. An automatic ramp-down system is configured with the superconducting coils and includes an automatically activated energy dump circuit for current withdrawn from the superconductive coils in a ramp-down process prior to a quench. The energy dump circuit includes one or more heat dissipating loads, wherein each of the heat dissipating loads is mounted in thermal communication with one of the tower or the nacelle that act a thermal heat sink for dispersing heat from the loads.

Abstract: A superconducting magnet system is provided. The superconducting magnet system includes a coil former, superconducting coils supported by the coil former, and one or more cooling assemblies. The cooling assemblies are in thermal contact with the coil former and include one or more cooling tubes for receiving a cryogen passed therethrough. The cooling assemblies are detachably mounted on the coil former and form at least one cooling circuit therein. The cooling assemblies include one or more flat surfaces attached on a surface of the coil former. A method of manufacturing the same is also provided.

Abstract: A persistent current switch system is presented. One embodiment of the persistent current switch system includes a vacuum chamber having a winding unit and dual cooling paths. The dual cooling paths are configured to circulate a coolant flow. The dual cooling paths are defined by a first cooling path and a second cooling path. The first cooling path includes a solid thermal component disposed in direct contact with the winding unit and the second cooling path includes a cooling tube disposed in direct contact with the winding unit and configured to circulate a coolant therein. The dual cooling paths cool the temperature of the winding unit below the threshold temperature to transition the persistent current switch system from the first mode to the second mode. A method of for cooling a winding unit in a persistent current switch system and a switching system including dual cooling paths are also disclosed.

Abstract: An imaging device may include multiple magnetic coils to generate a magnetic field. Additionally, the imaging device may include an outer support affixed to at least one coil of the plurality of magnetic coils and an axial support between at least two coils of the plurality of magnetic coils, wherein the outer support and the axial support operatively share a load corresponding to the generated magnetic fields.

Abstract: A system includes a storage tank storing gas. The storage tank includes a storage tank interface portion made from a first material. The system also includes a nozzle that includes a nozzle interface portion and a first portion. The first portion is made from a second material different from the first material. Additionally, the system includes a connection formed by coupling the storage tank interface portion and the nozzle interface portion to one another, and the connection is configured to maintain a leak rate of the gas equal to or less than 1×10?4 standard cubic centimeters per second (std. cc/s).

Abstract: A quench protection apparatus includes a number N of superconducting coils and a heater matrix. The number N of superconducting coils are electrically coupled in series. The heater matrix module includes the number N of heater units. The number N of heater units is electrically coupled in parallel with the number N of superconducting coils respectively. A number M of the heater units each includes at least the number N of heaters. Each superconducting coil is thermally coupled with at least one heater of each of the number M of the heater units. The number of N-M of the heater units each includes at least one heater. Each of the number M of superconducting coils correspondingly coupled with the number M of the heater units is thermally coupled with at least one heater of each of the number N-M of the heater units. A superconducting magnet system protected by above quench protection apparatus is also provided.

Abstract: A system includes a storage tank storing gas. The storage tank includes a storage tank interface portion made from a first material. The system also includes a nozzle that includes a nozzle interface portion and a first portion. The first portion is made from a second material different from the first material. Additionally, the system includes a connection formed by coupling the storage tank interface portion and the nozzle interface portion to one another, and the connection is configured to maintain a leak rate of the gas equal to or less than 1×10?4 standard cubic centimeters per second (std. cc/s).

Abstract: There is set forth herein a superconducting lead assembly comprising: a positive superconducting wire; a negative superconducting wire, wherein the positive superconducting wire is configured to conduct inflow current to a cryogenic apparatus and wherein the negative superconducting wire is configured to conduct outflow current away from the cryogenic apparatus; and an electrically insulating separator, wherein the positive superconducting wire and the negative superconducting wire are arranged proximately one another and on opposite sides of the electrically insulating separator for cancellation of electromagnetic forces attributable to current flowing simultaneously in opposite directions within the positive superconducting wire and the negative superconducting wire, and wherein a length of the superconducting lead assembly is flexible. In one embodiment the positive superconducting wire and the negative superconducting wire can include high temperature superconducting (HTS) material.

Abstract: A superconducting magnet system is provided. The superconducting magnet system includes a coil former, superconducting coils supported by the coil former, and one or more cooling assemblies. The cooling assemblies are in thermal contact with the coil former and include one or more cooling tubes for receiving a cryogen passed therethrough. The cooling assemblies are detachably mounted on the coil former and form at least one cooling circuit therein. The cooling assemblies include one or more flat surfaces attached on a surface of the coil former. A method of manufacturing the same is also provided.

Abstract: A quench protection apparatus includes a number N of superconducting coils and a heater matrix. The number N of superconducting coils are electrically coupled in series. The heater matrix module includes the number N of heater units. The number N of heater units is electrically coupled in parallel with the number N of superconducting coils respectively. A number M of the heater units each includes at least the number N of heaters. Each superconducting coil is thermally coupled with at least one heater of each of the number M of the heater units. The number of N-M of the heater units each includes at least one heater. Each of the number M of superconducting coils correspondingly coupled with the number M of the heater units is thermally coupled with at least one heater of each of the number N-M of the heater units. A superconducting magnet system protected by above quench protection apparatus is also provided.

Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.

Abstract: A cooling system for a low-cryogen superconducting magnet includes a primary cooling loop having a liquid reservoir containing a supply of liquid cryogen and a plurality of cooling tubes fluidly coupled to the liquid reservoir and in thermal communication with the superconducting magnet. The liquid cryogen is configured for circulation through the cooling tubes for providing primary cooling for the magnet for cooling the magnet to a target temperature. The cooling system also includes a thermal battery coupled to a component that is cooled to the target temperature by the primary cooling loop and is configured to be cooled by the primary cooling and to absorb heat from the at least one component during an interruption in the primary cooling to maintain the magnet at approximately the target temperature.

Abstract: A superconducting magnet system including a coil former, superconducting coils supported by the coil former, and one or more thermally conductive tubes. The one or more thermally conductive tubes are embedded inside of the coil former. The one or more thermally conductive tubes are in thermal contact with the coil former and arranged to receive a cryogen.

Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.

Abstract: A superconducting magnet system includes a coil support structure, superconducting coils, and electrically and thermally conductive windings. The superconducting coils and the conductive windings are supported by the coil support structure. Each conductive winding is electromagnetically coupled with a corresponding superconducting coil. Each conductive winding is electrically shorted.

Abstract: A superconducting magnet assembly includes a bobbin comprising a central bore along a longitudinal direction, and a superconducting coil package wound on the bobbin. The superconducting coil package includes a plurality of superconducting coil layers wound on the bobbin, a plurality of supporting member layers, each of the supporting member layers being between a corresponding two adjacent superconducting coil layers, and a thermal conduction layer between two superconducting coil layers or between a superconducting coil layer and an adjacent supporting member layer.

Abstract: A superconducting magnet apparatus that in one embodiment includes at least one superconducting coil and a passive quench protection circuit electrically coupled to the coil in parallel. The circuit includes a heater and a current limiter connected in series. The heater is thermally coupled to the coil and the current limiter blocks current through the circuit at a current lower than the current rating of the heater.

Abstract: A cryogenic system for a superconducting magnet comprises a closed-loop cooling path. The closed-loop cooling path comprises a magnet cooling tube thermally coupled to the superconducting magnet. The magnet cooling tube comprises a cryogen flow passage. The closed-loop cooling tube further comprises a re-condenser is fluidly coupled to the magnet cooling tube through tube sections and a liquid cryogen container fluidly coupled between the magnet cooling tube and the re-condenser. At least one gas tank is fluidly coupled to the magnet cooling tube through a connection tube.

Abstract: A superconducting magnet includes at least one superconducting coil and a quench protection circuit electrically coupled to said at least one coil in parallel. The circuit includes at least one quench heater assembly thermally coupled to the at least one coil, and at least one superconducting current limiter electrically connected in series with the at least one quench heater assembly. The superconducting current limiter has a superconducting state with zero resistance, and a normal state with a normal resistance to decrease an electric current flowing through the quench heater assembly.

Abstract: A magnet assembly is provided. The magnet assembly comprises a magnet configured to generate a magnetic field and an iron shield configured to shield the magnet. The magnet assembly further comprises one or more positive temperature coefficient heaters disposed on the iron shield and configured to stabilize temperature of the iron shield. An iron shield assembly and a method for temperature control of the magnet assembly are also presented.