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

Radial-basis-function-based neural network for harmonic detection / Chang, Gary W. in IEEE transactions on industrial electronics, Vol. 57 N° 6 (Juin 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 6 (Juin 2010) . - pp. 2171 - 2179 Titre : Radial-basis-function-based neural network for harmonic detection Type de document : texte imprimé Auteurs : Chang, Gary W., Auteur ; Chen, Cheng-I, Auteur ; Teng, Yu-Feng, Auteur Article en page(s) : pp. 2171 - 2179 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Adaptive  linear  combiner  (ADALINE)  Back-propagation  neural  network  Fast  Fourier  transform  (FFT)  Harmonics  Radial-basis-function  neural  network Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The widespread application of power-electronic loads has led to increasing harmonic pollution in the supply system. In order to prevent harmonics from deteriorating the power quality, detecting harmonic components for harmonic mitigations becomes a critical issue. In this paper, an effective procedure based on the radial-basis-function neural network is proposed to detect the harmonic amplitudes of the measured signal. By comparing with several commonly used methods, it is shown that the proposed solution procedure yields more accurate results and requires less sampled data for harmonic assessment. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290151 [article] Radial-basis-function-based neural network for harmonic detection [texte imprimé] / Chang, Gary W., Auteur ; Chen, Cheng-I, Auteur ; Teng, Yu-Feng, Auteur . - pp. 2171 - 2179. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 6 (Juin 2010) . - pp. 2171 - 2179 Mots-clés : Adaptive  linear  combiner  (ADALINE)  Back-propagation  neural  network  Fast  Fourier  transform  (FFT)  Harmonics  Radial-basis-function  neural  network Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : The widespread application of power-electronic loads has led to increasing harmonic pollution in the supply system. In order to prevent harmonics from deteriorating the power quality, detecting harmonic components for harmonic mitigations becomes a critical issue. In this paper, an effective procedure based on the radial-basis-function neural network is proposed to detect the harmonic amplitudes of the measured signal. By comparing with several commonly used methods, it is shown that the proposed solution procedure yields more accurate results and requires less sampled data for harmonic assessment. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5290151

Virtual instrumentation and educational platform for time-varying harmonic and interharmonic detection / Chen, Cheng-I in IEEE transactions on industrial electronics, Vol. 57 N° 10 (Octobre 2010) 

Public ISBD [article]  in IEEE transactions on industrial electronics > Vol. 57 N° 10 (Octobre 2010) . - pp. 3334 - 3342 Titre : Virtual instrumentation and educational platform for time-varying harmonic and interharmonic detection Type de document : texte imprimé Auteurs : Chen, Cheng-I, Auteur ; Chang, Gary W., Auteur Année de publication : 2011 Article en page(s) : pp. 3334 - 3342 Note générale : Génie électrique Langues : Anglais (eng) Mots-clés : Discrete  Fourier  transform  (DFT)  Frequency  identification  Harmonics  Interharmonics  Power  quality Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Selection of a suitable method among various techniques for assessment of harmonic and interharmonic components of a measured voltage or current waveform is not an easy task for the students. A good start is to understand the relationship between the analysis techniques and the measured parameters. In this paper, several commonly used methods for time-varying harmonic and interharmonic detection of measured waveforms are reviewed and implemented in an integrated virtual instrumentation. Compared from the aspect of frequency identification for the reviewed methods, general guidelines for performing harmonic and interharmonic detection are also developed for the educational purpose. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409568 [article] Virtual instrumentation and educational platform for time-varying harmonic and interharmonic detection [texte imprimé] / Chen, Cheng-I, Auteur ; Chang, Gary W., Auteur . - 2011 . - pp. 3334 - 3342. Génie électrique Langues : Anglais (eng) in IEEE transactions on industrial electronics > Vol. 57 N° 10 (Octobre 2010) . - pp. 3334 - 3342 Mots-clés : Discrete  Fourier  transform  (DFT)  Frequency  identification  Harmonics  Interharmonics  Power  quality Index. décimale : 621.38 Dispositifs électroniques. Tubes à électrons. Photocellules. Accélérateurs de particules. Tubes à rayons X Résumé : Selection of a suitable method among various techniques for assessment of harmonic and interharmonic components of a measured voltage or current waveform is not an easy task for the students. A good start is to understand the relationship between the analysis techniques and the measured parameters. In this paper, several commonly used methods for time-varying harmonic and interharmonic detection of measured waveforms are reviewed and implemented in an integrated virtual instrumentation. Compared from the aspect of frequency identification for the reviewed methods, general guidelines for performing harmonic and interharmonic detection are also developed for the educational purpose. DEWEY : 621.38 ISSN : 0278-0046 En ligne : http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?arnumber=5409568