IEEE transactions on energy conversion, Vol. 24 N° 4. IEEE transactions on energy conversion - Décembre 2009
| Titre : | IEEE transactions on energy conversion, Vol. 24 N° 4. IEEE transactions on energy conversion - Décembre 2009 |
| Type de document : | Bulletin |
| Paru le : | 24/06/2010 |
Dépouillements
Article : texte imprimé
Kral, Christian, Auteur ;
Haumer, Anton, Auteur ;
Haigis, Mathias, Auteur
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For a totally enclosed fan-cooled induction machine, two methods of numerical analysis are compared with measurements. The first numerical method is based on computational fluid dynamics (CFDs) and the second one uses a thermal equivalent circui[...]
Article : texte imprimé
Hayashi, Hiriaki, Auteur ;
Nakamura, Kensaku, Auteur ;
Chiba, Akira, Auteur
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In this paper, a comparison of efficiencies is put forward for a set of test machines constructed from several different types of low-loss magnetic steels. These are laminated amorphous alloys, 6.5% high silicon steel, and general-purpose low-lo[...]
Article : texte imprimé
Jianzhong Zhang, Auteur ;
Ming Cheng, Auteur ;
Zhe, Chen, Auteur
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The stator-mounted permanent-magnet (SMPM) machines have some advantages compared with its counterparts, such as simple rotor, short winding terminals, and good thermal dissipation conditions for magnets. In this paper, a general power equation [...]
Article : texte imprimé
Skjlberg, Johan K., Auteur ;
Ohma, Havar F., Auteur
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This paper deals with brush wear and current distribution of carbon brushes on steel slip rings. Measurements of brush wear and brush current have been carried out both in generators in service and in a laboratory test rig. Wear rates increase w[...]
Article : texte imprimé
Oskar Wallmark, Auteur ;
Kjellqvist, Peter, Auteur
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This paper presents an analysis of a concentrated air-gap winding concept intended for low-cost, high-speed applications where the reduced winding construction cost can motivate its use. Expressions for magnet flux linkage, torque, winding induc[...]
Article : texte imprimé
Yeh, Chia-Chou, Auteur ;
Demerdash, Nabeel A. O., Auteur
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Fault-tolerant operation of induction motors fed by soft starters when experiencing thyristor/silicon-controlled rectifier open-circuit or short-circuit switch fault is presented in this paper. The present low-cost fault mitigation solution can [...]
Article : texte imprimé
Jones, Martin, Auteur ;
Vukosavic, Slobodan N., Auteur ;
Dujic, Drazen, Auteur
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Rotor-flux-oriented control of multiphase induction machines with sinusoidal magnetomotive force (MMF) distribution can be realized theoretically by using only two current controllers in the synchronous reference frame. In practice, however, thi[...]
Article : texte imprimé
Jean Le Besnerais, Auteur ;
Vincent Lanfranchi, Auteur ;
Michel Hecquet, Auteur
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This paper presents a method to characterize the main magnetic force waves occurring in a sinusoidally fed induction machine. Three main force types are identified: slotting force waves, winding force waves, and saturation force waves. Slotting [...]
Article : texte imprimé
Si Zhe, Chen, Auteur ;
Cheung, Norbert C., Auteur ;
Ka Chung, Wong, Auteur
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This paper proposes a novel direct voltage control scheme, using integral variable structure control to synchronize a doubly fed induction generator (DFIG)-based wind energy conversion system (WECS) to the grid. The proposed scheme directly cont[...]
Article : texte imprimé
Peng, Zhao, Auteur ;
Malik, O. P., Auteur
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Inspired by observing the similarity between adaptive control systems and recurrent neural networks (RNNs), a new control scheme, the recurrent adaptive control (RAC), is presented in this paper. Back propagation through time (BPTT), a learning [...]
Article : texte imprimé
Muhando, Endusa Billy, Auteur ;
Senjyu, Tomonobu, Auteur ;
Uehara, Aki, Auteur
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With the increasing trend of connecting high penetrations of wind energy conversion systems (WECSs) to the transmission networks comes the challenge of updating the grid code for the connection of megawatt-class wind turbines. Starting with each[...]
Article : texte imprimé
Jiabing Hu, Auteur ;
Yikang, He, Auteur
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This paper proposes an enhanced control and operation of a doubly fed induction generator (DFIG) based wind power generation system under unbalanced grid voltage conditions. System behaviors of grid-side and rotor-side converters (GSCs and RSCs)[...]
Article : texte imprimé
Yao, D. L., Auteur ;
Choi, S. S., Auteur ;
Tseng, K. J., Auteur
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A scheme that allows the dispatch of steady and controllable level of power from a wind power generating station is proposed in this paper. The scheme utilizes two battery energy storage systems (BESSs) in which the generated wind power is used [...]
Article : texte imprimé
Le-Ren, Chang-Chien, Auteur ;
Yao-Ching, Yin, Auteur
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As installed capacity of wind power retains a significant proportion of generation mix in the electric system, operators have the increasing expectation that wind turbines should function in some ways similar to the conventional plants. In addit[...]
Article : texte imprimé
Banakar, Hadi, Auteur ;
Ooi, Boon Teck, Auteur
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The problem of establishing maximum size of a wind farm (WF) when it joins a WF cluster (WFC) is examined. It is shown that the clustering effect can be quantified by detailed simulation of system dynamics, using appropriate models for wind even[...]
Article : texte imprimé
Nagaoka, Naoto, Auteur ;
Takayama, Satoshi, Auteur ;
Satoh, Hiroyuki, Auteur
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This paper describes power modulation of a photovoltaic (PV) generator for frequency regulation. The generator has a small electric double-layer capacitor. The capacitor absorbs rapid fluctuations of PV generation, and allows the generator to ch[...]
Article : texte imprimé
Azit, Abu Hanifa, Auteur ;
Nor, Khalid Mohamed, Auteur
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This paper presents an optimization approach to determine the optimal sizing for a gas-fired grid-connected cogeneration system planning. An absorption chiller and a thermal storage system are included as part of the cogeneration system configur[...]
Article : texte imprimé
Tapia, Gerardo, Auteur ;
Santamaria, Giovanna, Auteur
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A systematic methodology for smooth connection of wind-turbine-driven doubly fed induction generators (DFIGs) to the grid is presented. Synchronization of the voltage induced in the DFIG open stator to that of the grid, which needs to be accompl[...]
Article : texte imprimé
Small-signal stability analysis of a DFIG-based wind power system under different modes of operation
Mishra, Yateendra, Auteur ;
S. Mishra, Auteur ;
Fangxing, Li, Auteur
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This paper focuses on the super/subsynchronous operation of the doubly fed induction generator (DFIG) system. The impact of a damping controller on the different modes of operation for the DFIG-based wind generation system is investigated. The c[...]
Article : texte imprimé
Varma, Rajiv K., Auteur ;
Khadkikar, Vinod, Auteur
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This letter presents a novel concept of utilizing photovoltaic (PV) solar farm (SF) as a flexible ac transmission systems controller-static synchronous compensator, to regulate the point of common coupling voltage during nighttime when the SF is[...]
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