Recent Developments of Electrical Drives - Part 36 doc

... distribution at 60 Hz. III-1.5. Recent Advances in Development of Die-Cast Copper Rotor Motor 351 Table 2. Test results for 5-Hp (3.7 kW), 415-V, two-pole, three-phase, 50-Hz motor, copper rotor ... lifetime. 0 20 40 60 80 100 120 0 200 400 600 800 1000 1200 1400 1600 n [min-1] M [Nm], I [A] Current - Cu Torque - Al Current - Al Torque - Cu Figure 6. Torque-speed and curre...

Ngày tải lên: 02/07/2014, 09:20

... insure ex- tended torque-speed envelope with maximum-torque-perstator-current operation range below the base speed as well as constant-power flux-weakening and maximum-torque- perstator-flux operation ... (eds.), Recent Developments of Electrical Drives, 1–2. C  2006 Springer. 2 Introductory Remarks harmonics in PM motors. The technique that consists on the choice of an appropriate...

Ngày tải lên: 02/07/2014, 09:20

... Graphic representation of the torque of the squirrel cage vs. time for a sudden decrease of the load. I-3. Coupled Model for PMSM 35 Figure 15. Graphic representation of the torque of the squirrel cage ... energy emulator. 36 P´erez-Donsi´on Figure 17. Graphic representation of the magnets and reluctance torques vs. time during a sudden decrease of the load. we can defined it l...

Ngày tải lên: 02/07/2014, 09:20

... data-processing tool MATLAB R  , making possible the determination of fast and simple prediction models of the acoustic noise. S. Wiak, M. Dems, K. Kom ˛ eza (eds.), Recent Developments of Electrical ... D’Ascq Cedex, France stephane.vivier@ec-lille.fr, michel.hecquet@ec-lille.fr, ait-hammouda.amine@ec-lille.fr, pascal.brochet@ec-lille.fr, Bellemain.Napame@ec-lille.fr 2 Alstom—2...

Ngày tải lên: 02/07/2014, 09:20

... the other S. Wiak, M. Dems, K. Kom ˛ eza (eds.), Recent Developments of Electrical Drives, 165–176. C  2006 Springer. II-3. Sensorless Rotor-Flux-Oriented Control Scheme 171 Figure 6. Global estimation ... Fernandez 2 1 University of M´alaga, Electrical Engineering Department, Plaza El Ejido S/N 29013 Malaga, Spain mjduran@uma.es, jlduran@uma.es, fmperez@uma.es 2 University of...

Ngày tải lên: 02/07/2014, 09:20

... flux-linkage has been derived to be used in IPMSM DTC insuring maximum-torque-per-stator-current operation below the base speed as well as constant-power flux-weakening and maximum- torque-per-stator-flux ... (eds.), Recent Developments of Electrical Drives, 187–200. C  2006 Springer. 182 Muntean et al. low speed, have been recently reported [11,12]. The initial angular position of t...

Ngày tải lên: 02/07/2014, 09:20

... V. 0,0E+0 5,0E-5 1,0E-4 1,5E-4 2,0E-4 2,5E-4 3,0E-4 0 0,002 0,004 0,006 0,008 0,01 resistance [ Ω] time [s] Figure 23. Equivalent resistance of the rotor bar vs. time. 0,0E+0 1,0E-7 2,0E-7 3,0E-7 4,0E-7 5,0E-7 6,0E-7 0 ... sizing. Generally, capability of steel-cored S. Wiak, M. Dems, K. Kom ˛ eza (eds.), Recent Developments of Electrical Drives, 295–306. C  2006 Springer. II-12...

Ngày tải lên: 02/07/2014, 09:20

... approachwhichleads toa betterintegration ofspeed reducingfunctions in electric drives, the emergence of new needs to satisfy specifications of the high-effort-at- low-speed type,under moreand more severe ... simulations and measure- ments. 436 Nogarede et al. Figure 1. Comparison of the various electromechanical effects in terms of specific energy [3]. ceramics and of 8,000 ppm in...

Ngày tải lên: 02/07/2014, 09:20

... Transformer of 3 kVA: Distribution of the magnetic field in the case of no-load. III-3.5. Improved Modeling of Three-Phase Transformer Analysis 459 Table 3. Comparison of results case of unsymmetrical ... i A in the case of no-load. Figure 7. Computed and measured primary current i B in the case of no-load. Figure 8. Computed and measured primary current i C in the case of no...

Ngày tải lên: 02/07/2014, 09:20

... is available from the Library of Congress. ISBN-10 1-4 02 0-4 53 4-4 (HB) ISBN-13 97 8-1 -4 02 0-4 53 4-9 (HB) ISBN-10 1-4 02 0-4 53 5-2 (e-book) ISBN-13 97 8-1 -4 02 0-4 53 5-6 (e-book) Published by Springer, P.O. ... 83 v Recent Developments of Electrical Drives Best papers from the International Conference on Electrical Machines ICEM’04 Edited by S....

Ngày tải lên: 02/07/2014, 09:20