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Start Over Author "Dinavahi, V." Journal ieee transactions on power delivery
21 results on '"Dinavahi, V."'

3. Interfacing techniques for transient stability and electromagnetlc translent programs

Author

Jalili-Marandi, V., Dinavahi, V., Strunz, K., Martinez, J.A., and Ramirez, A.

Subjects
System design -- Methods, Systems analysis -- Methods, Electric power systems -- Design and construction, Stability -- Evaluation, Electric power transmission -- Research, System design, Business, Computers, Electronics, Electronics and electrical industries
Published
2009

4. Interharmonics: theory and modeling: IEEE Task Force on harmonics modeling and simulation

Author

Testa, A., Akram, M.F., Burch, R., Carpinelli, G., Chang, G., Dinavahi, V., Hatziadoniu, C., Grady, W.M., Gunther, E., Halpin, M., Lehn, P., Liu, Y., Langella, R., Lowenstein, M., Medina, A., Ortmeyer, T., Ranade, S., Ribeiro, P., Watson, N., Wikston, J., and Xu, W.

Subjects
Fourier transformations -- Properties, Harmonic analysis -- Models, Electric power systems -- United States, Electric power systems -- Design and construction, Business, Computers, Electronics, Electronics and electrical industries
Abstract

Some of the most remarkable issues related to interharmonic theory and modeling are presented. Starting from the basic definitions and concepts, attention is first devoted to interharmonic sources. Then, the interharmonic assessment is considered with particular attention to the problem of the frequency resolution and of the computational burden associated with the analysis of periodic steady-state waveforms. Finally, modeling of different kinds of interharmonic sources and the extension of the classical models developed for power system harmonic analysis to include interharmonics are discussed. Numerical results for the issues presented are given with references to case studies constituted by popular schemes of adjustable speed drives. Index Terms--Discrete Fourier transform (DFT), frequency resolution, harmonic analysis, interharmonics.

Published
2007

7. Dynamic System Equivalents: A Survey of Available Techniques

Author

Annakkage, U. D., primary, Nair, N. K. C., additional, Liang, Yuefeng, additional, Gole, A. M., additional, Dinavahi, V., additional, Gustavsen, Bjorn, additional, Noda, Taku, additional, Ghasemi, Hassan, additional, Monti, A., additional, Matar, Mah, additional, Iravani, R., additional, and Martinez, J. A., additional

Published
2012
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8. Dynamic Average Modeling of Front-End Diode Rectifier Loads Considering Discontinuous Conduction Mode and Unbalanced Operation

Author

Chiniforoosh, S., primary, Atighechi, H., additional, Davoudi, A., additional, Jatskevich, J., additional, Yazdani, A., additional, Filizadeh, S., additional, Saeedifard, M., additional, Martinez, J. A., additional, Sood, V., additional, Strunz, K., additional, Mahseredjian, J., additional, and Dinavahi, V., additional

Published
2012
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9. Interfacing Issues in Multi-Domain Simulation Tools

Author

Faruque, M. O., primary, Dinavahi, V., additional, Steurer, M., additional, Monti, A., additional, Strunz, K., additional, Martinez, J. A., additional, Chang, G. W., additional, Jatskevich, J., additional, Iravani, R., additional, and Davoudi, A., additional

Published
2012
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12. Interfacing Issues in Real-Time Digital Simulators

Author

Ren, W., primary, Sloderbeck, M., additional, Steurer, M., additional, Dinavahi, V., additional, Noda, T., additional, Filizadeh, S., additional, Chevrefils, A. R., additional, Matar, M., additional, Iravani, R., additional, Dufour, C., additional, Belanger, J., additional, Faruque, M.O., additional, Strunz, K., additional, and Martinez, J. A., additional

Published
2011
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19. Modeling devices with nonlinear Voltage-current Characteristics for harmonic studies

Author

Chang, G., primary, Hatziadoniu, C., additional, Xu, W., additional, Ribeiro, P., additional, Burch, R., additional, Grady, W.M., additional, Halpin, M., additional, Liu, Y., additional, Ranade, S., additional, Ruthman, D., additional, Watson, N., additional, Ortmeyer, T., additional, Wikston, J., additional, Medina, A., additional, Testa, A., additional, Gardinier, R., additional, Dinavahi, V., additional, Acram, F., additional, and Lehn, P., additional

Published
2004
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20. A Tap-Changing Algorithm for the Implementation of “Sen” Transformer

Author

Faruque, M.O. and Dinavahi, V.

Abstract

The "Sen" transformer (ST) is made out of a transformer and tap changers and is capable of regulating the active and the reactive power flow selectively in an electric transmission line. This paper focuses on the development of a novel algorithm capable of selecting the best combination of tap-settings for the compensating windings of the ST. Digital simulation model of the ST including a detailed tap-changer model has been developed in the PSCAD/EMTDC software package. The tap-changing algorithm of the ST has been implemented through a FORTRAN code that is interfaced with the rest of the model. Should there be any change in the magnitude of the compensating voltage and its phase angle, the tap-positions are readjusted accordingly. The results obtained from the simulation of the ST are compared with the simulation results of the UPFC which is a power electronics-based power-flow controller. The comparison shows good agreement between the results and hence validates the effectiveness of the proposed algorithm and the performance of the ST.

Published
1995
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21. <formula formulatype="inline"><tex>${z}$</tex> </formula>-Transform-Based Methods for Electromagnetic Transient Simulations

Author

Naredo, L., Ramirez, A., Ametani, A., Gutierrez, A., Mansoldo, A., Gole, A., Lima, A., Morched, A., Gustavsen, B., Wilcox, D., Uribe, F., Moreira, F., de Leon, F., Martinez, J., Guardado, L., Davila, M., Ritual, M., Nagaoka, N., Watson, N., Gomez, P., Moreno, P., Iravani, R., Carneiro, S., Noda, T., Dinavahi, V., Ortiz, V., and Neves, W.

Abstract

This is an introductory paper on z-transform-based methods for electromagnetic transient simulations of power systems. Since the theory of the z-transform was originally developed for the analysis of time series data defined at equidistant time steps, simulation models developed using z-transforms can readily be used in electromagnetic transient simulations based on the same time step. First, this paper briefly introduces the basics of the z-transform, and then applications to electromagnetic transient simulations of power systems are reviewed.

Published
1995
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