Results 241 to 250 of about 678,635 (303)

Backstepping control design of a DC-DC converter - DC machine association

2014 International Conference on Multimedia Computing and Systems (ICMCS), 2014
This paper deals with the synthesis of a speed control strategy for a DC motor drive based on an output feedback backstepping controller. The backstepping method takes into account the non linearities of the system in the design control law and leads to a system asymptotically stable in the context of Lyapunov theory. Simulated results are displayed to
Ahmed Moutabir, Elhassane Abdelmounim, Mohamed Aboulfatah, Abdelmajid Abouloifa   +3 more
openaire   +1 more source

Flux-Switching Machine With DC Excitation

IEEE Transactions on Magnetics, 2012
This paper proposes a topology of flux-switching machine with dc excitation to improve the field-weakening capability of flux-switching machines. This dc-excited flux-switching machine preserves the structure of typical flux-switching permanent-magnet machines while replacing the permanent magnets with dc field windings. The combined advantages of this
Tang, Y., Paulides, J.J.H., Motoasca, T.E., Lomonova, E.   +3 more
openaire   +2 more sources

MEASUREMENT OF PARAMETERS OF DC MACHINES

Electric Machines & Power Systems, 1982
ABSTRACT The methods for measuring the leakage inductances and the nonlinear magnetic parameters of the dc machine are presented. The methods to obtain the mechanical load characteristics of the whole mechanical system and to separate the friction and iron losses in the dc machine or various torques in the whole mechanical system follow from an ...
R.S. RAMSHAW, G. XIE
openaire   +1 more source

NONLINEAR CONTROL OF DC MACHINES

Electric Machines & Power Systems, 1996
A novel approach to the control of DC motors is presented. The approach is based on the state feedback linearization which consists mainly of a coordinate transform and a state feedback. The advantage of this approach is its validity for a variety of operating points as opposed to conventional linearization techniques which are only valid in a narrow ...
M. S. IBBINI, W. S. ZAKARIA
openaire   +1 more source

Simulation of the brushless DC machine

Proceedings of the Twenty-Seventh Southeastern Symposium on System Theory, 2002
Research efforts on the brushless DC machine (BDCM) have produced a computer simulation model of the machine applicable for analysis of the machine during fault conditions. Several failure modes have been studied using this simulation technique. Modeling the motor during flux weakening, bearing failure, armature winding open circuiting, and armature ...
T. Salem, T.A. Haskew
openaire   +1 more source

DC-Assisted Bipolar Switched Reluctance Machine

IEEE Transactions on Industry Applications, 2015
In this paper, a sinusoidally excited four-phase switched reluctance machine (SRM) with modified DC assisted windings is presented. The proposed four-phase SRM configuration with modified DC windings has reduced number of controllable phases and power converter devices.
Tausif Husain, Yilmaz Sozer, Iqbal Husain   +2 more
openaire   +1 more source

One Phase Machine with DC Stator Excitation

SAE Technical Paper Series, 2010
<div class="section abstract"><div class="htmlview paragraph">In the report, a new version of machine with DC stator excitation is discussed. A brushless one phase electrical machine has a very simple design. Rotor has no windings. In generator mode operation, stator has one winding for DC stator excitation and one output winding.
Gladyshev S.P., Mi C., Okrainskaya I.
openaire   +2 more sources

Modeling and Control of DC Machines

2011
The brushed DC machine, which derives its excitation flux from a field winding or permanent magnets, remains commercially relevant in the field of drives and it is prudent to consider the modeling and control of these machines. From a didactic perspective, there is decided merit in examining the brushed drive concept first.
Rik De Doncker, Duco W. J. Pulle, André Veltman   +2 more
openaire   +1 more source

A Half-Bridge DC/DC Converter for Plasma Cutting Machine

2007 7th International Conference on Power Electronics and Drive Systems, 2007
This paper presents the design and construction of a plasma cutting machine by using a half-bridge dc/dc converter for negative direct current power supply and initial exciting arc by a high voltage high frequency circuit. When the gas passes a torch electrode, it will explode to be plasma arc and transfer to the work piece.
N. Sanajit, A. Jangwanitlert
openaire   +1 more source