Abstract
A superconducting system of coupled coils to transfer energy reversibly to an inductive load was proposed by Smith [1]. Various modifications using transformers [2,3] and switching [4] followed in an effort to reduce the total system energy. However, a companion paper [5] compares various transfer schemes and finds the energy rating of the coil elements is still three times larger than those of other systems. This fact suggests that element rating rather than system energy should be optimized. Second, it is considered that the transfer speed could be increased by using nonsinusoidal coil coupling, still maintaining the zero-torque constraint. Finally, experiments in the laboratory led to an interest in the effect of superconductive losses and coupling harmonics on torque requirements.
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References
P. F. Smith, in: Proceedings of the Summer Study on Superconducting Devices, Brookhaven, New York (1968), p. 589.
P. F. Smith, Particle Accelerators 1:155 (1970).
K. I. Thomassen, “Reversible Magnetic Energy Transfer and Storage Systems,” Los Alamos Scientific Laboratory, New Mexico, Rept. LA-DC-72–1325 (November 1972).
P. F. Smith, in: Proceedings of the Eighth Intern. Conf. on High Energy Accelerators, CERN (1971), 213.
R. S. Ramshaw and E. P. Dick, in: Advances in Cryogenic Engineering, Vol. 21, Plenum Press, New York (1976), p. 149.
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Ramshaw, R.S., Dick, E.P. (1960). Element Rating and Coupling Harmonics in a Superconductive Energy Transfer System. In: Timmerhaus, K.D., Weitzel, D.H. (eds) Advances in Cryogenic Engineering. Advances in Cryogenic Engineering, vol 21. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-0208-8_18
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DOI: https://doi.org/10.1007/978-1-4757-0208-8_18
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