Zobrazeno 1 - 10
of 87
pro vyhledávání: '"L.K. Kovalev"'
Autor:
L.K. Kovalev, V.N. Poltavets, Konstantin Kovalev, Dmitry Dezhin, A.V. Levin, V. T. Penkin, P.S. Vasich
Publikováno v:
Physics Procedia. 36:747-752
Theoretical methods of calculating of two-dimensional magnetic fields, inductive parameters and output characteristics of the new type of high-temperature superconducting (HTS) synchronous motors with a composite rotor are presented. The composite ro
Autor:
L.K. Kovalev, E. Duffner, B. Oswald, M. Soell, Wolfgang Gawalek, K.-J. Best, G. Krabbes, W. Prusseit
Publikováno v:
IEEE Transactions on Applied Superconductivity. 17:1583-1586
The present state of development of highly dynamic motors to be operated at 77 K (one HTS Linear Motor with superconducting double pancake stator windings and one four pole rotating synchronous motor with REM in the rotor, REM = rear earth magnets) i
Autor:
V.T. Penkin, L.K. Kovalev, I I Akimov, S M A Koneyev, Tatiana Prikhna, K. A. Modestov, Konstantin Kovalev, K.V. Ilushin, V.N. Poltavets, Wolfgang Gawalek
Publikováno v:
Journal of Physics: Conference Series. 43:792-795
This work is devoted to experimental investigation of a reluctance motor for which the rotor contains bulk superconducting elements to provide different permeabilities along the pole axes and in perpendicular direction. Three materials are under cons
Publikováno v:
Journal of Physics: Conference Series. 43:800-803
Based on recent investigations we design highly dynamic electric motors up to 400 kW and linear motors up to 120 kN linear force using HTS bulk material and HTS tapes. The introduction of HTS tapes into AC applications in electric motors needs fundam
Autor:
Koneev S M-A, S. A. Larionoff, L.K. Kovalev, I I Akimov, K. A. Modestov, V. P. Logviniouk, V. T. Penkin, L. G. Verzhbitsky, Ye. Ye. Trifonov, David Dew-Hughes, A. E. Larionoff, Konstantin Kovalev, K.V. Ilushin, V.N. Poltavets
Publikováno v:
Superconductor Science and Technology. 17:S460-S464
This work describes the research and development of a cryogenic pump that is intended for the fuel supply of aircraft engines using advanced low temperature fuel. The basic design is that of a 4-pole reluctance motor. The rotor is constructed from so
Autor:
Konstantin Kovalev, S.M.-A. Koneev, Wolfgang Gawalek, V. T. Penkin, K.V. Ilushin, L.K. Kovalev, V.N. Poltavets, Tobias Habisreuther, B. Oswald, K.-J. Best
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:1261-1264
Two new types of HTS electric machines are considered. The first type is hysteresis motors and generators with cylindrical and disk rotors containing bulk HTS elements. The second type is reluctance motors with compound HTS-ferromagnetic rotors. The
Autor:
T. Strasser, Wolfgang Gawalek, B. Oswald, K.-J. Best, M. Krone, J. Oswald, M. Söll, L.K. Kovalev
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 9:1201-1204
Superconducting reluctance motors with YBCO bulk material have been built and tested up to more than 10 kW. They have been operated in liquid nitrogen at 77 K, at different frequencies (speeds) and loads. The specific power achieved is significantly
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 7:900-903
Several hysteresis motors have been constructed with an output power up to 500 W at T=77 K. The rotors of these machines consist of melt-textured YBCO. In this work, the authors present detailed investigations on the magnetic processes in these rotor
Autor:
P. Verges, M. pu, T. Habisreuther, A. Gladun, P. Stope, p. Gapalek, T. Straβer, K.V. Ilushin, D. Litpkendorf, P. Görnert, K. Fischer, L.K. Kovalev
Publikováno v:
Applied Superconductivity. 2:465-478
Bulk cplindrical pBCO blocks up to 5 cm in diameter are fabricated bp a modified melt texturing process. The multi-domain material pith domain sipes of about 1 cm3 shops a c-axis texture correlated pith the temperature gradient during the gropth proc
Publikováno v:
IEEE Transactions on Magnetics. 28:299-302
Problems of inductance calculations of advanced high-voltage toroidal armature windings made in the form of racetrack modules are discussed. It is known that a combined external screen consisting of a coaxial steel laminated cylinder and an aluminium