A superconducting magnet for Stanford University

Three MHD superconducting magnets are being developed for coal power generation. A rectangular saddle magnet uses a nonmetallic substructure for conductor support; a circular magnet contains the radial Lorentz forces by interlayer bands instead of a superstructure; and a circular saddle magnet supports conductors with a metallic substructure. A substructure support provides conductor movement within the winding controlled by the limits of frictional heating of the conductor and reacts with a significant part of the magnetically induced loads. During a seismic event or MHD channel-induced vibration of the winding, eddy currents induced in the vacuum vessel provide damping for the controls of resonant amplitude.