Results 141 to 150 of about 1,387 (186)

Adaptive torque-ripple minimization in switched reluctance motors

IEEE Transactions on Industrial Electronics, 2001
This paper addresses torque-ripple reduction in current-fed switched reluctance motors (SRMs). Ripple-free torque production in SRMs requires an accurate model that is often too complex for practical implementation. The algorithm proposed here combines the use of a simplified model with adaptation.
Ismail Agirman, Aleksandar M. Stankovic, Gilead Tadmor, Hanoch Lev-Ari   +3 more
openaire   +2 more sources

Torque ripple in synchronous reluctance motor

MELECON '98. 9th Mediterranean Electrotechnical Conference. Proceedings (Cat. No.98CH36056), 2002
The paper describes the calculation and reduction of torque ripple in a synchronous reluctance motor (SRM). The analysis is based on finite element modeling and proposes a method of dynamic torque characteristic calculation. The mutual connection between static and dynamic torque characteristic is also established.
openaire   +1 more source

Effect of rotor profiles on the torque of a switched-reluctance motor

IEEE Transactions on Industry Applications, 1990
The authors examine effects on the torque that simple variations of the standard rotor pole face profile could have, basically from an elementary viewpoint of how the modified profiles affect the distribution and magnitude of the radial and tangential components of the flux density.
M. Moallem, C.M. Ong, L.E. Unnewehr
openaire   +1 more source

A five-phase reluctance motor with high specific torque

IEEE Transactions on Industry Applications, 1992
An alternative topology for a synchronous reluctance motor (SRM) is proposed utilizing a novel five-phase, concentrated winding, wye connected stator. The corresponding inverter requires only 10 transistors, each of which operates at a better switch utilization factor than a conventional three-phase, six-transistor bridge.
H.A. Toliyat, L. Xu, T.A. Lipo
openaire   +1 more source

Fuzzy direct torque control of switched reluctance motors

IECON 2012 - 38th Annual Conference on IEEE Industrial Electronics Society, 2012
A strategy for direct torque control by fuzzy logic (FDTC) of switched reluctance motors is presented. Two fuzzy controllers are used in a cascade configuration to control the motor speed in the outer loop and to implement the direct torque and flux control scheme using space vector in the inner loop. Simulation results are presented and the controller
Sofiane Fahas, Hoang Le-Huy, Innocent Kamwa   +2 more
openaire   +1 more source

Analysis of Torque Dynamics for Switched Reluctance Drives with Instantaneous Torque Control

Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting, 2006
This paper presents an analysis of torque dynamics of switched reluctance drive systems with instantaneous torque control. Torque dynamics is useful information in designing drive components, i.e. machine, converter and controller. When developing a switched reluctance drive, torque dynamics has to be taken into account in many design aspects, e.g ...
Nisai Fuengwarodsakul, Jens Fiedler, Rik De Doncker   +2 more
openaire   +1 more source

Direct torque control of switched reluctance motor for minimizing torque ripple

International Journal of Applied Electromagnetics and Mechanics, 2008
Large torque ripple of the Switched Reluctance Motor (SRM) is a major problem that is an obstacle to spreading over an industry. Nonlinear inductance profile and pulse magnetizing make the torque ripple unavoidable. In order to reduce the torque ripple, it is necessary to control the torque directly because the torque of the SRM is not linearly ...
Kim, Youn-Hyun, Kim, Sol, Choi, Jae-Hak, Ahn, Joonseon, Cho, Chang-Hyun, Lee, Ju   +5 more
openaire   +1 more source

Torque Calculations of Polyphase Reluctance Machines

IEEE Transactions on Power Apparatus and Systems, 1967
A rigorous solution for the flux-density distribution on the armature surface of a reluctance motor is given by dividing the composite airgap space into two regions and solving Laplace's equation separately in them to get the potential distribution.
openaire   +1 more source

On-line torque estimation in a switched reluctance motor for torque ripple minimisation

2004 IEEE International Symposium on Industrial Electronics, 2004
This paper considers torque ripple minimisation control for switched reluctance motors (SRMs) and presents a novel on-line approach to the estimation of instantaneous torque. An adaptive B-spline neural network is used to learn the non-linear flux linkage and torque characteristics of an SRM.
null Zhengyu Lin, D.S. Reay, B.W. Williams, null Xiangning He   +3 more
openaire   +1 more source

Variable reluctance rotor structures-their influence on torque production

IEEE Transactions on Industrial Electronics, 1992
Switched reluctance (SR) motors with differing structures are compared in terms of their torque prediction capabilities. The first structure is doubly salient with conventional laminations, also referred to as the CRS motor. The second has semiclosed stator slots and a cylindrical rotor with anisotropic magnetic properties arising from axial ...
openaire   +1 more source