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American Superconductor is an American energy technologies company based in Devens, Massachusetts specializing in the design and manufacture of power systems and superconducting wire. It owns AMSC Windtech in Klagenfurt, Austria. Wikipedia.

Malozemoff A.P.,American Superconductor Corporation
MRS Bulletin | Year: 2011

Electric power grid applications impose many requirements on high-temperature superconductor (HTS) materials. In addition to a high superconductor transition temperature, these include all the parameters enabling a cost-effective, robust, and high-performance wire: high current-carrying capability in relevant ranges of field and temperature, flexibility and mechanical strength in a wire form, electrical and chemical stability, low ac loss, high wire uniformity, and low wire manufacturing cost with high reproducibility and yield. This daunting list explains why it has taken so long to bring HTS wires to where they are today-starting to be used in commercial power projects. The benefits of these wires are very significant: high efficiency and power density in an accessible temperature range, enabling high-capacity and easily installed cables, compact and powerful rotating machinery, and unique current-limiting functionality. However, the job is not done. Improved wire properties and reduced manufacturing costs of existing materials will further broaden the impact of this technology. Meanwhile the search for new materialsâ€"and for room-temperature superconductorsâ€"must continue, with more attention to thermal fluctuations, flux creep, and reduced anisotropy, which are critical to their application potential. © 2011 Materials Research Society.

Agency: Department of Energy | Branch: | Program: STTR | Phase: Phase I | Award Amount: 149.96K | Year: 2015

Advanced magnet systems being designed for fusion devices and other applications would greatly benefit from the use of high-temperature superconductors HTS). However, the HTS magnet designs currently suffer from the inability to rapidly detect a quench, raising the possibility that the magnet and associated systems can be damaged if preventative action is not takes fast enough. Most efforts to address this challenge have focused on developing fast respond sensors that can be incorporated into the magnets. The ideal approach, however, is to develop a self-monitoring HTS wire that instantly responds to stress changes occurring at the beginning of a quench condition. This advance self-monitoring wire would provide a level of quench protection not available with existing systems and ensure the reliable operation of critical and costly magnet systems. American Superconductor Corporation AMSC) and collaborators at North Carolina State University NCSU) propose to develop and demonstrate the feasibility of a self- monitoring 2G HTS wire incorporating an embedded optical fiber sensor in the wire. The optical fiber, which will be an integral component in the AMSCs laminated 2G composite wire, will allow the continual, real time monitoring of local temperature variations stress) throughout the length of the wire in the magnet. Temperature increases signal the initiation of a potential quench and will be detected using a novel Rayleigh scattering technique developed at NCSU which overcomes the lack of spatial resolution encountered with conventional optical measurement techniques. The Rayleigh technique will also provide the ability to identify the position of the quench within the wire. It is expected that this self-monitoring capability will add minimal cost to the 2G coil wire manufacturing and can utilize commercially available optical sources and equipment for the detection system. In Phase I we will fabricate short length lengths of the self-monitoring 2G wire and conduct a series of mechanical and electrical test to ensure that the mechanical and electrical integrity of the 2G coil wire and optical fiber are not affected by the manufacturing process. Meter length wires using the optimal design and optical fibers will be produced and the quench detection will be tested in small coils. In Phase II we will develop a reel-to-reel system for incorporating the optical fiber into AMSCs 2G coil wire. The goal will be the production of self-monitoring wire with lengths exceeding 500 meters. The long length wire will be used in coils that will be subjected to extensive testing to confirm the mechanical integrity and the rapid quench detection. The Phase II project will also focus on manufacturing yield and the fabrication of electrical and optical splices. The self-monitoring 2G HTS wire technology will significantly increase the reliability of advanced magnet systems needed for fusion devices and motors and generators being planned for critical energy, defense, medical and other commercial applications. The proposed quench detection technology will provide an unsurpassed level of protection for these critical and expensive systems. This increased reliability will enable the use of HTS wire in these applications, protect the systems from failure and extend the lifetime of the systems, ultimately leading to lower costs for both the advanced magnets and systems.

Agency: Department of Defense | Branch: Navy | Program: SBIR | Phase: Phase I | Award Amount: 80.00K | Year: 2014

Today"s Navy continues to see increased demand for more power both on and off the ship. This need is largely driven by the continued development of high power density advanced weapons systems and sensors. Continued space and weight limitations for these ship applications will drive the need for new power solutions to be light and compact, easing installation on new ships and enabling upgrades on existing ones. To meet this need, highly efficient methods of transferring large amounts of power are being investigated by NSWC Carderock in Philadelphia through the use of High temperature Superconductors (HTS). Although the team in Philadelphia is developing these high capacity, compact power cables, there is no active development for the connectors that these extremely power dense cables will need if they are to integrated at the ship level. American Superconductor Corporation (AMSC) has gained experience in the development, design and manufacture of low voltage DC HTS cable connectors through its partnership with NSWC on the HTS advanced degaussing program. Although high capacity AC power cable connectors will be dramatically different than their low voltage DC counterparts, AMSC is nonetheless uniquely positioned to successfully develop this type of low temperature, thermally isolated, electrical connection.

American Superconductor Corporation | Date: 2015-04-16

A method for cooling high temperature superconducting (HTS) cable comprising receiving a first flow of coolant at a first section of HTS cable and permitting the first flow of coolant to flow therethrough. The method also includes receiving a second flow of coolant at a second section of HTS cable and permitting the second flow of coolant to flow therethrough. The first section of HTS cable and said second section of HTS cable are coupled via a cable joint, the cable joint electrically connecting the first and second sections of HTS cable. The cable joint is in fluid communication with at least one refrigeration module. The cable joint includes at least one conduit configured to permit a third flow of coolant between the cable joint and the at least one refrigeration module through a coolant line separate from the first and second sections of HTS cable.

American Superconductor Corporation | Date: 2012-03-08

A method includes locating a defect in a first segment of high temperature superconducting wire. A second segment of high temperature superconducting wire is then positioned onto the first segment of high temperature superconducting wire such that the second segment of high temperature superconducting wire overlaps the defect. A path is then created such that current flows through the second segment of high temperature superconducting wire. The first segment of high temperature superconducting wire and second segment of high temperature superconducting wire are then laminated together.

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