IEEE transactions on energy conversion, Vol. 23 n°4. IEEE Transactions on energy conversion - Décembre 2008
| Titre : | IEEE transactions on energy conversion, Vol. 23 n°4. IEEE Transactions on energy conversion - Décembre 2008 |
| Type de document : | Bulletin |
| Paru le : | 21/01/2009 |
Dépouillements
Article : texte imprimé
Merkhouf, A., Auteur ;
Doyon, P., Auteur ;
Upadhyay, S., Auteur
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Variable frequency transformer (VFT) is a controllable bidirectional transmission device that can transfer power between asynchronous networks. The construction of VFT is similar to conventional asynchronous machines, where the two separate elec[...]
Article : texte imprimé
This paper proposes a simple method of determining the equivalent circuit parameters of National Electrical Manufacturers Association (NEMA) design A and B types of induction motors from standard manufacturer data such as rated output power, sta[...]
Article : texte imprimé
Yeh, Chia-Chou, Auteur ;
Sizov, G.Y., Auteur ;
Sayed-Ahmed, A., Auteur
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The benefits and drawbacks of a 5-hp reconfigurable induction motor, which was designed for experimental emulation of stator winding interturn and broken rotor bar faults, are presented in this paper. It was perceived that this motor had the pot[...]
Article : texte imprimé
Uddin, M.N., Auteur ;
Sang Woo Nam, Auteur
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Among the numerous loss minimization algorithms, a loss-model-based approach offers a fast response without torque pulsations. However, it requires the accurate loss model and the knowledge of the motor parameters. Therefore, a technical difficu[...]
Article : texte imprimé
Mauricio, J.M., Auteur ;
Leon, A. E., Auteur ;
Gomez-Exposito, A., Auteur
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An adaptive nonlinear controller for wind energy doubly fed induction machines is introduced in this paper. The proposed controller is based on the feedback linearization technique and includes a disturbance observer for estimation of parameter [...]
Article : texte imprimé
Gomis-Bellmunt, O., Auteur ;
Junyent-Ferre, A., Auteur ;
Sumper, A., Auteur
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This paper deals with the control of doubly fed induction generators to ride through unbalanced voltage sags. A control strategy is proposed by choosing certain current reference values in the positive and negative sequences so that the torque a[...]
Article : texte imprimé
Scharlau, C.C., Auteur ;
Pereira, L.F.A., Auteur ;
Pereira, L.A., Auteur
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The paper assesses the steady-state performance of a five-phase induction machine fed by a modified open loop constant volt/hertz (V/f) control method, which imposes a trapezoidal induction waveform in the air gap under varying load conditions. [...]
Article : texte imprimé
The paper describes a new discontinuous carrier-based pulsewidth modulation (PWM) method for use in variable frequency drives (VFD) driven by three-level inverters. The method introduces three different switching patterns for the full range of o[...]
Article : texte imprimé
Diaz-Dorado, E., Auteur ;
Carrillo, C., Auteur ;
Cidras, J., Auteur
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The penetration level of wind energy is continuously growing, and it is especially relevant in European countries such as Denmark, Germany, and Spain. For this reason, grid codes in different countries have been recently revised, or are now unde[...]
Article : texte imprimé
This paper investigates the control and operation of doubly fed induction generator (DFIG)-based wind generation systems under unbalanced voltage conditions. DFIG system behaviors under unbalanced voltage are analyzed and different control targe[...]
Article : texte imprimé
Article : texte imprimé
Wahdame, B., Auteur ;
Candusso, D., Auteur ;
Francois, X., Auteur
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The results of a durability test performed during 1000 h on a proton exchange or polymer electrolyte membrane (PEM) fuel cell are analyzed using some well-suited design of experiment techniques. The response surface methodology is adopted to mod[...]
Article : texte imprimé
Sokolov, M., Auteur ;
Shmilovitz, D., Auteur
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Fast tracking of photovoltaic maximum power point (MPP) is accomplished by a linear control loop that emulates a nearly matched load line. Thus, the response time of conventional MPP trackers is significantly accelerated.
Article : texte imprimé
Mauricio, J.M., Auteur ;
Leon, A. E., Auteur ;
Gomez-Exposito, A., Auteur
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A strategy for controlling wind farms composed of variable-speed machines is considered in this paper. It is shown that mechanical efforts produced by wind gusts on individual machines can be reduced by means of a supplementary control signal co[...]
Article : texte imprimé
Grilo, A. P., Auteur ;
Sharghi, A., Auteur ;
Freitas, W., Auteur
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This letter presents a set of analytical formulas to determine the optimal resistor size to be used in the three-series-resistor method of squirrel-cage induction generators connection. The analytical formulation is based on the short-circuit th[...]
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