Results 1 to 10 of about 984 (220)

Design of a brushless excitation system utilizing pot cores

, 2015
Purpose: The paper is devoted to the optimal substitution of slip rings through an inductive power transfer system (IPT) for field winding supply of generators or motors with a wound rotor.
Veitengruber, Julian, Rinderknecht, Frank, Friedrich, Horst E.   +2 more
core   +1 more source

Research of Brushless Doubly-fed Machine with Non-salient Pole

Gong-kuang zidonghua, 2012
In view of problem that conversion efficiency of rotator flux of brushless doubly-fed machine influences on working efficiency, the paper proposed an optimal design scheme of non-salient pole rotator structure of brushless doubly-fed machine.
LI Sheng-li
doaj  

Infinite time horizon optimal current control of a stepper motor exploiting a finite element model

, 2014
An optimal control theory based method is presented aiming at minimizing the energy delivered from source and the power loss in a stepper motor circuit.
Szymanski, G., Bernat, J., Sykulski, J. K., Stranz, A., Sykulski, J.K., Stepien, S.   +5 more
core   +1 more source

Axial flux permanent magnet machines for direct drive applications [PDF]

, 2007
This thesis explores aspects of the design, analysis, and experimental test of permanent magnet axial flux machines for use in diesel engine generator sets, vertical axis wind turbines, and wheel motors for solar cars.
Martin, Richard
core  

Finite Element Analysis of Cogging Torque and Torque Ripple of Brushless DC Motor

Wasit Journal of Engineering Sciences
Brushless DC (BLDC) motors are used in various applications, including industrial, automotive, aerospace, and computers, due to their many benefits. Still, it has some drawbacks, like its cogging torque and torque ripple.
Estabraq Abd-Al Kareem, Amer M.Ali
doaj   +1 more source

Design aspects of a novel brushless excitation system for synchronous machines

, 2019
In this work design rules for a novel brushless excitation system for externally excited synchronous machines are discussed. The concept replaces slip rings with a fullbridge active rectifier and a controller mounted on the rotor.
Jan Potter, Schullerus, Gernot, Pfost, Martin, Martin Pfost, Pötter, Jan, Gernot Schullerus   +5 more
core   +1 more source

Fault-Tolerant Operation of Wound Field Synchronous Machine Using Coil Switching

IEEE Access, 2019
This paper proposes a fault tolerant operation of a wound field synchronous machine (WFSM) under the loss of excitation (LOE) fault in the rotor field winding. A two-mode field excitation scheme is presented, where the rotor of the WFSM was modified, and
Muhammad Ayub, Shahid Atiq, Ghulam Jawad Sirewal, Byung-Il Kwon   +3 more
doaj   +1 more source

Design and characterization of a rotating brushless PM exciter for a synchronous generator test setup

, 2016
This paper deals with the characterization and construction of a rotating brushless PM exciter intended for synchronous generator excitation purposes. Traditionally, PM exciters are used as pre-exciters in synchronous generator excitations systems.
Abrahamsson, Johan,, Fredrik Evestedt, Lundin, Urban,, Johan Abrahamsson, J. Jose Perez-Loya, Pérez-Loya, Jesus José,, Jonas Kristiansen Noland, Urban Lundin, Nøland, Jonas Kristiansen,, Evestedt, Fredrik,   +9 more
core   +1 more source

Synchronous Machines with High-Frequency Brushless Excitation for Vehicle Applications [PDF]

, 2019
Electrically excited synchronous machines (EESM) are becoming an alternative to permanent magnet synchronous machines (PMSM) in electric vehicle (EV) applications.
Tang, Junfei
core  

Simplified Model of Brushless Synchronous Generator for Real Time Simulation

, 2015
This paper presents a simplified model of brushless synchronous machine for saving hardware resources in a real time simulation system. Firstly, a brushless excitation system model is described.
F.R. Blanquez, Lopez, M D, E. Rebollo, Platero, C A, Blanquez, F R, C. A. Platero, M. D. Lopez, Rebollo, E   +7 more
core   +1 more source