American Superconductor Corporation

Michael A Tanner

William L Carter

Eric R Podtburg

Alexander Otto

Gregory L Snitchler

Peter D Antaya

Henry C Valcour, Iii

John Gannon

Hong Cai

David Crotzer

Dana Krause

Subramaniam Anandakugan

Henry C Valcour Iii

A rotating machine includes a stator and a rotor configured to rotate within the stator. Rotor windings are supported in the rotor and are formed of a laminated electrical conductor in a single-layer saddle coil configuration. The conductor includes a first support lamina, a second support lamina, an insert including a high temperature superconductor disposed between the first and second support lamina, and a filler material surrounding the insert that bonds the insert to each of the first and second support lamina. At the location between the first support lamina and second support lamina corresponding to the location of the insert, the width dimension of the filler material on each side of the insert is at least 10 percent of a width of the conductor. The conductor is configured to carry at least 600 Amperes per turn and have a C-axis tensile strength of at least 21 MPa.

Wide electrical conductor having high C-axis strength

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.

Mitigating the effects of defects in high temperature semiconductor wires

Growing community of inventors

Westborough, MA, United States of America

Michael A Tanner