Documents disponibles écrits par cet auteur

On real-time simulation for harmonic and flicker assessment of an industrial system with bulk nonlinear loads / Chang, Gary W. in IEEE transactions on industrial electronics, Vol. 57 N° 9 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 2998 - 3009 Titre : On real-time simulation for harmonic and flicker assessment of an industrial system with bulk nonlinear loads Type de document : texte imprimé Auteurs : Chang, Gary W., Auteur ; Liu, Yu-Jen, Auteur ; Dinavahi, Venkata, Auteur Année de publication : 2011 Article en page(s) : pp. 2998 - 3009 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Electric  arc  furnace  (EAF)  Flickers  Harmonics  Motor  drives  Power  quality  (PQ)  Real-time  simulation  (RTS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents application experiences of real-time simulation (RTS) techniques for harmonic and flicker studies of an industrial power system, where the system and nonlinear loads are properly modeled. A PC-cluster-based real-time parallel simulator is implemented under MATLAB/SIMULINK, where the studied system consists of an ac electric arc furnace, dc and ac motor-drive loads, and the static var compensator. Guidelines for model partition of the studied system and the solver settings under an RTS environment are reported. In addition, the most commonly used offline simulation with variable-step solver and the actual field measurements are included for comparison. Results indicate that the RTS achieves satisfactory solution accuracy within much less execution time and can be applied for more complicated studies such as installing new nonlinear loads with different levels of model complexities or designing/tuning mitigation devices of power-quality disturbances, where the repeated time-consuming analysis is required. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345724 [article] On real-time simulation for harmonic and flicker assessment of an industrial system with bulk nonlinear loads [texte imprimé] / Chang, Gary W., Auteur ; Liu, Yu-Jen, Auteur ; Dinavahi, Venkata, Auteur . - 2011 . - pp. 2998 - 3009. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 2998 - 3009 Mots-clés : Electric  arc  furnace  (EAF)  Flickers  Harmonics  Motor  drives  Power  quality  (PQ)  Real-time  simulation  (RTS) Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : This paper presents application experiences of real-time simulation (RTS) techniques for harmonic and flicker studies of an industrial power system, where the system and nonlinear loads are properly modeled. A PC-cluster-based real-time parallel simulator is implemented under MATLAB/SIMULINK, where the studied system consists of an ac electric arc furnace, dc and ac motor-drive loads, and the static var compensator. Guidelines for model partition of the studied system and the solver settings under an RTS environment are reported. In addition, the most commonly used offline simulation with variable-step solver and the actual field measurements are included for comparison. Results indicate that the RTS achieves satisfactory solution accuracy within much less execution time and can be applied for more complicated studies such as installing new nonlinear loads with different levels of model complexities or designing/tuning mitigation devices of power-quality disturbances, where the repeated time-consuming analysis is required. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345724

Real-time simulation of grid-connected wind farms using physical aggregation / Jalili-Marandi, Vahid in IEEE transactions on industrial electronics, Vol. 57 N° 9 (Septembre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3010 - 3021 Titre : Real-time simulation of grid-connected wind farms using physical aggregation Type de document : texte imprimé Auteurs : Jalili-Marandi, Vahid, Auteur ; Lok-Fu, Pak, Auteur ; Dinavahi, Venkata, Auteur Année de publication : 2011 Article en page(s) : pp. 3010 - 3021 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Distributed  computing  Power  system  simulation  Real-time  systems  Wind  energy Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The electromagnetic transient (EMT) simulation of a power system interconnected with wind farms involves such intensive computations that fully digital real-time simulators are among the effective tools for performing such simulations. To practically exploit real-time simulators for the simulation of wind farms with numerous wind turbines, the application of aggregation techniques is inevitable. In this paper, a detailed EMT model of a grid-connected wind farm with ten doubly-fed-induction-generator-based General Electric 1.5-MW wind turbines has been implemented on an advanced PC-Cluster-based real-time simulator. Three levels of physical aggregation methods are presented to reduce the computational efforts of the real-time simulation while maintaining adequate accuracy. A combination of these aggregation methods with parallel processing allowed the real-time simulation to be carried out with a fixed time step of 50 μs and high accuracy. Various fault transient results are provided for all the aggregation levels and compared against results from the detailed wind farm model. The validity of the proposed methods and real-time simulation results has also been confirmed by comparing with offline simulation results in MATLAB/SIMULINK. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345723 [article] Real-time simulation of grid-connected wind farms using physical aggregation [texte imprimé] / Jalili-Marandi, Vahid, Auteur ; Lok-Fu, Pak, Auteur ; Dinavahi, Venkata, Auteur . - 2011 . - pp. 3010 - 3021. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 9 (Septembre 2010) . - pp. 3010 - 3021 Mots-clés : Distributed  computing  Power  system  simulation  Real-time  systems  Wind  energy Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The electromagnetic transient (EMT) simulation of a power system interconnected with wind farms involves such intensive computations that fully digital real-time simulators are among the effective tools for performing such simulations. To practically exploit real-time simulators for the simulation of wind farms with numerous wind turbines, the application of aggregation techniques is inevitable. In this paper, a detailed EMT model of a grid-connected wind farm with ten doubly-fed-induction-generator-based General Electric 1.5-MW wind turbines has been implemented on an advanced PC-Cluster-based real-time simulator. Three levels of physical aggregation methods are presented to reduce the computational efforts of the real-time simulation while maintaining adequate accuracy. A combination of these aggregation methods with parallel processing allowed the real-time simulation to be carried out with a fixed time step of 50 μs and high accuracy. Various fault transient results are provided for all the aggregation levels and compared against results from the detailed wind farm model. The validity of the proposed methods and real-time simulation results has also been confirmed by comparing with offline simulation results in MATLAB/SIMULINK. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5345723