Results 21 to 30 of about 9,985 (277)

Development of tubular cardiovascular phantom system for pulse transit time simulation [PDF]

, 2019
This paper presents on the development of a tubular cardiovascular phantom system to simulate pulse transit time (PTT). The PTT defined as the delay time between two pulses in one cardiac cycle has been shown to be promising method for cuffless ...
Correia, Ricardo, Hayes-Gill, Barrie R., Korposh, Serhiy, P. Morgan, Stephen, Wan Zaki, Wan Suhaimizan   +4 more
core   +1 more source

Control and performance of a flywheel energy storage system based on a doubly-fed induction generator-motor for power conditioning [PDF]

, 1999
A flywheel energy storage system based on a doubly-fed induction generator-motor basically consists of a wound-rotor induction machine and a cycloconverter or a voltage-source PWM rectifier-inverter which is used as an AC exciter.
Akagi, Hirofumi, Sato, Hikaru
core   +1 more source

Evolution and Modern Approaches for Thermal Analysis of Electrical Machines [PDF]

, 2009
In this paper, the authors present an extended survey on the evolution and the modern approaches in the thermal analysis of electrical machines. The improvements and the new techniques proposed in the last decade are analyzed in depth and compared in ...
Boglietti, Aldo, Cavagnino, Andrea, Mejuto, C., Mueller, M., Shanel, M., Staton, D.   +5 more
core   +1 more source

Linear Induction Motors with Modular Winding Primaries and Wound Rotor Secondaries [PDF]

IEEE Transactions on Magnetics, 2008
Linear induction motors commonly use double layer windings, which produce good sinusoidal travelling fields, but have relatively bulky end windings and use either half-filled slots or overhanging coil sides at the ends of the machine. Long stator systems are difficult since it is not possible to butt stator modules against each other.
Eastham, F, Cox, T, Leonard, Paul, Proverbs, J   +3 more
openaire   +1 more source

Sensored and sensorless speed control methods for brushless doubly fed reluctance motors [PDF]

, 2009
The study considers aspects of scalar V/f control, vector control and direct torque (and flux) control (DTC) of the brushless doubly fed reluctance machine (BDFRM) as a promising cost-effective alternative to the existing technological solutions for ...
Abad, Abad, Abad, Arnalte, Bauer, Betz, Betz, Betz, Brassfield, Datta, Dorrell, Jovanović, Jovanović, Jovanović, Jovanović, Jovanović, Jovanović, Jovanović, Jovanović, Liang, Liao, Liao, Liao, Lorenz, M. Jovanovic, McMahon, Morel, Ojo, Poza, Roberts, Saifkhani, Schulz, Takahashi, Takahashi, Wallace, Wang, Williamson, Xu, Xu, Xu, Zhi   +40 more
core   +1 more source

Efficient Propulsion Structure with an Axial Flux Rotary Converter for HEV Drive Unit

Advances in Electrical and Electronic Engineering, 2011
This paper describes an efficient axial flux arrangement of the four quadrant rotary converter for hybrid electric vehicles. The design of the axial flux wound stator and both axial flux squirrel cage rotors is based on the arrangement of radial air gap ...
Ales Havel, Petr Vaculik, David Slivka
doaj   +1 more source

Assessment of torque components in brushless permanent-magnet machines through numerical analysis of the electromagnetic field [PDF]

, 2005
For the calculation of torque in brushless (BL) alternating current motors a local method is proposed, based on the Maxwell stress theory and the filtered contributions due to the harmonics of the magnetic vector potential in the motor air gap.
Dellinger, S.J., Ionel, D.M., McGilp, M.I., Miller, T.J.E., Popescu, M.   +4 more
core   +1 more source

Multiphase induction motor drives - a technology status review [PDF]

, 2007
The area of multiphase variable-speed motor drives in general and multiphase induction motor drives in particular has experienced a substantial growth since the beginning of this century.
Abbas, Abolhassani, Andrese, Apsley, Atkinson, Bakhshai, Benatmane, Bendixen, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Bojoi, Casadei, Coates, Correa, Correa, Corzine, de Silva, Dente, Duran, E. Levi, Edelson, F. Profumo, Farina, Ferraris, Ferreira, Figureoa, Gataric, Gerada, Golubev, Golubev, Golubev, Gopakumar, Gopakumar, Gritter, H.A. Toliyat, Hadiouche, Hadiouche, Hodge, Hou, Iqbal, Iqbal, Iqbal, Iqbal, Iqbal, Jacobina, Jacobina, Jacobina, Jacobina, Jahns, Jones, Jones, Jones, Jones, Jouanne, Kelly, Kestelyn, Kestelyn, Kestelyn, Kianinezhad, Klingshirn, Levi, Levi, Levi, Levi, Lipo, Locment, Lu, Lyra, Mantero, Mantero, McCoy, Mecrow, Merabtene, Miller, Miranda, Mitcham, Mohapatra, Mohapatra, Mokhtari, Monti, Nelson, Ojo, Oriti, Oudjebour, Parsa, Pereira, Pereira, R. Bojoi, Razik, Ryu, Ryu, S. Williamson, Semail, Semail, Shi, Siala, Silva, Singh, Smith, Smith, Steiner, Sudhoff, Takami, Terrien, Toliyat, Toliyat, Toliyat, Toliyat, Toliyat, Ward, Weh, Williamson, Xu, Xu, Zhao, Zhao, Zheng   +121 more
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Flux observer algorithms for direct torque control of brushless doubly-fed reluctance machines [PDF]

, 2009
Direct Torque Control (DTC) has been extensively researched and applied to most AC machines during the last two decades. Its first application to the Brushless Doubly-Fed Reluctance Machine (BDFRM), a promising cost-effective candidate for drive and ...
Chaal, Hamza, Jovanovic, Milutin
core   +2 more sources

Constant Starting Torque Control of Wound Rotor Induction Motors [PDF]

IEEE Transactions on Power Apparatus and Systems, 1970
Constant starting torque of a wound rotor motor can be achieved by inserting a fixed external element consisting of resistances and reactances combination in the rotor circuit instead of using a saturable reactor or other feedback devices. This approach provides the desired starting characteristic at a low cost of starting equipment.
openaire   +1 more source