Results 31 to 40 of about 576,681 (349)

Influence of PWM on the proximity loss in permanent magnet brushless AC machines [PDF]

, 2008
The winding copper loss can be significantly increased due to skin and proximity eddy current effects. The skin and proximity losses due to fundamental frequency current has been investigated in literature, but the influence of PWM on the skin and ...
Bremner, J., Deodhar, R., Iwasaki, S., Liu, Y., Pride, A., Zhu, Z.Q.   +5 more
core   +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

Field test of a silicon carbide metro propulsion system with reduced losses and acoustic noise

IET Electrical Systems in Transportation, 2021
Results are reported from a successful field test with a silicon carbide (SiC) metal‐oxide‐semiconductor field‐effect transistor (MOSFET) traction inverter. The train has been operated over a 3‐month period in the Stockholm metro system.
Martin Lindahl, Torbjörn Trostén, Daniel Jansson, Mikael H Johansson, Erik Velander, Anders Blomberg, Hans‐Peter Nee   +6 more
doaj   +1 more source

A High-Performance GaN Power Module With Parallel Packaging for High-Current and Low- Voltage Traction Inverter Applications

IEEE Journal of Emerging and Selected Topics in Power Electronics
Gallium nitride (GaN) power semiconductors are being explored as promising alternatives for the next generation of high-power traction inverters, suitable for both high- and low-voltage applications.
Manh Tuan Tran, Dai Duong Tran, Kritika Deepak, Gamze Egin Martin, Olcay Bay, M. E. El Baghdadi, O. Hegazy   +6 more
semanticscholar   +1 more source

Estimation of Number of Cores for Preventing Common-Mode Inductor Saturation in Railway Traction Inverters

IEEE Access, 2023
In the traction system of rolling stock, the common-mode (CM) voltage is over 500 V, so the inductors that suppress the CM current are prone to saturation.
Satoru Hatsukade, Keiji Wada
doaj   +1 more source

Direct torque control for dual three-phase induction motor drives [PDF]

, 2004
A direct torque control (DTC) strategy for dual three-phase induction motor drives is discussed in this paper. The induction machine has two sets of stator three-phase windings spatially shifted by 30 electrical degrees.
Bojoi, R., Farina, Francesco, Griva, Giovanni Battista, Profumo, Francesco, Tenconi, Alberto   +4 more
core   +1 more source

Comparative Study of Electrically Excited Conventional and Homopolar Synchronous Motors for the Traction Drive of a Mining Dump Truck Operating in a Wide Speed Range in Field-Weakening Region

Mathematics, 2022
A synchronous homopolar motor (SHM) has a salient pole passive rotor, an excitation winding located on the stator, and no permanent magnets, which ensures high reliability and makes this type of motor a good alternative to motors traditionally used in ...
Vladimir Prakht, Vladimir Dmitrievskii, Vadim Kazakbaev, Alecksey Anuchin   +3 more
doaj   +1 more source

Performance comparison of conventional synchronous reluctance machines and PM-assisted types with combined star-delta winding [PDF]

, 2017
This paper compares four prototype Synchronous Reluctance Motors (SynRMs) having an identical geometry of iron lamination stacks in the stator and rotor.
Ibrahim, Mohamed Nabil Fathy, Rashad, Essam, Sergeant, Peter   +2 more
core   +3 more sources

Traction Motor-Inverter Utilized Battery Charger for PHEVs [PDF]

Journal of Power Electronics, 2013
Most eco-friendly cars can adopt the concept of an integrated battery charger (IBC), which uses currently available motor drive systems. The IBC has a lot of strong points such as low cost and minimum space for the high voltage battery charger. On the other hand, it also has some defects caused by its structure.
Dong-Gyun Woo, Yun-Sung Kim, Gu-Bae Kang, Byoung-Kuk Lee   +3 more
openaire   +1 more source

Substrate Stress Relaxation Regulates Cell‐Mediated Assembly of Extracellular Matrix

Advanced Functional Materials, EarlyView.
Silicone‐based viscoelastic substrates with tunable stress relaxation reveal how matrix mechanics regulates cellular mechanosensing and cell‐mediated matrix remodelling in the stiff regime. High stress relaxation promotes assembly of fibronectin fibril‐like structures, increased nuclear localization of YAP and formation of β1 integrin‐enriched ...
Jonah L. Voigt, Jens Timmer, Elisabetta Ada Cavalcanti‐Adam   +2 more
wiley   +1 more source