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modeling and analysis guidelines for slow transients - Part III: The study of ferroresonance

IEEE TRANSACTIONS ON POWER DELIVERY 2000年第1期15卷 255-265页

作者： Iravani, MR Chaudhary, AKS Giesbrecht, WJ Hassan, IE Keri, AJF Lee, KC Martinez, JA Morched, AS Mork, BA Parniani, M Sharshar, A Shirmohammadi, D Walling, RA Woodford, DA IEEE Working Group on Modeling Analysis of Systems Transients Using Digital Programs

The ability to predict or confirm ferroresonance depends primarily on the correctness of the transformer model used by the computer simulation. Ferroresonance is introduced and a general modeling approach is given. An overview of available literature and contributors to this area is provided. A simple case of ferroresonance in a single phase transformer is used to illustrate this "phenomenon." Three phase transformer core structures are discussed. Ferroresonance in three phase grounded-wye distribution systems is described and illustrated with waveform data obtained from laboratory simulations. Representation of the study zone is discussed, modeling techniques are presented, and implementation suggestions are made. Three case studies are presented. Transformer representation is critical to performing a valid simulation. The direction of ongoing research is discussed, and the reader is advised to monitor the literature for ongoing rapid improvements in transformer modeling techniques.

关键词： bifurcation chaos duality ferroresonance nonlinear dynamics overvoltages transformer models

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Interfacing Techniques for Transient Stability and Electromagnetic Transient programs

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IEEE TRANSACTIONS ON POWER DELIVERY 2009年第4期24卷 2385-2395页

作者： Jalili-Marandi, V. Dinavahi, V. Strunz, K. Martinez, J. A. Ramirez, A. Working Group on Modeling and Analysis of System Transients Using Digital Programs IEEE Power Engineering Society Transmission and Distribution Committee

Transient stability (TS) and electromagnetic transient (EMT) programs are widely used simulation tools in power systems, with distinct applications but competing requirements. TS programs are fast which makes them suitable for handling large-scale networks, however, the modeling is not sufficiently detailed. On the other hand, EMT simulators are highly detailed, but limited in speed;consequently, they are used to simulate only small portions of the network. Integrating these two types of simulators generates a hybrid simulator which inherits the merits of both programs. A hybrid simulator can fulfill the modeling requirements of a large network by providing a fast as well as a detailed simulation. Establishing a connection between two different programs brings up several important issues which have been addressed, classified, and explained in this paper. An alternative integrated modeling of TS and EMT is also discussed using the concept of frequency shifting.

关键词： Electromagnetic transient analysis hybrid simulation interfacing power system transient stability

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A benchmark system for digital time-domain simulation of an active power filter

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IEEE TRANSACTIONS ON POWER DELIVERY 2005年第1期20卷 234-241页

作者： Lavers, ED Lehn, PW IEEE PES Task Force on Simulation of FACTS and Customer Power Devices of the IEEE PES Working Group on Modeling and Analysis of System Transients Using Digital Programs

A benchmark system is presented for digital time-domain simulation of a shunt connected active power filter. The active power filter consists of a 3-phase voltage source converter operating under pulse-width modulation. The converter is controlled using a digital deadbeat current regulator. Harmonic prediction is employed to allow accurate harmonic compensation despite controller latencies. A PSCAD/EMTDC simulation model is developed based on a laboratory scale active power filter. By employing an experimental system as a basis, a pragmatic control structure, which accounts for all implementation constraints, is assured. Experimental measurements clearly validate the accuracy of the simulation model.

关键词： active filters digital control power system harmonics predictive control pulse width modulated power converters

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modeling of LCC-HVDC systems using Dynamic Phasors

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IEEE TRANSACTIONS ON POWER DELIVERY 2014年第4期29卷 1989-1998页

作者： Daryabak, M. Filizadeh, S. Jatskevich, J. Davoudi, A. Saeedifard, M. Sood, V. K. Martinez, J. A. Aliprantis, D. Cano, J. Mehrizi-Sani, A. IEEE Task Force on Dynamic Average Modeling Working Group on Modeling and Analysis of System Transients Using Digital Programs General Systems Subcommittee T&D Committee IEEE Power and Energy Society

This paper presents an average-value model of a line-commutated converter-based HVDC system using dynamic phasors. The model represents the low-frequency dynamics of the converter and its ac and dc systems, and has lower computational requirements than a conventional electromagnetic-transient (EMT) switching model. The developed dynamic-phasor model is verified against an EMT model of the CIGRE HVDC Benchmark. Simulation results confirm the validity and accuracy of the average value model in predicting the low-frequency dynamics of the ac- and dc-side quantities. Merits and applicability limitations of the average model are highlighted.

关键词： Dynamic average modeling dynamic phasors electromagnetic-transients (EMT) simulation line-commutated converter (LCC) HVDC

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Interfacing Issues in Multi-Domain Simulation Tools

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IEEE TRANSACTIONS ON POWER DELIVERY 2012年第1期27卷 439-448页

作者： Faruque, M. O. Dinavahi, V. Steurer, M. Monti, A. Strunz, K. Martinez, J. A. Chang, G. W. Jatskevich, J. Iravani, R. Davoudi, A. IEEE PES Task Force on Interfacing Techniques for Simulation Tools Working Group on Modeling and Analysis of System Transients Using Digital Programs IEEE Power and Energy Society T&D Committee

This task force paper presents multi-domain tools and their interfacing issues to perform simulations that require expertise in multiple areas of physics, such as electrothermal, electromechanical, electrochemical, and electromagnetic simulations, etc. Features of single multi-domain simulation tools, which are capable of simulating more than one system such as electrical chemical, mechanical, etc., are discussed. In addition, programs that are not capable of performing multi-domain simulation independently but can be interfaced with other programs to perform multi-domain simulation are also covered. Two case studies are reported where multi-domain simulations are performed in offline and real-time environments through the interfacing of more than one simulation tool.

关键词： Interfacing multi-domain multi-physics simulation tools

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Dynamic Averaged and Simplified Models for MMC-Based HVDC Transmission systems

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IEEE TRANSACTIONS ON POWER DELIVERY 2013年第3期28卷 1723-1730页

作者： Saad, H. Peralta, J. Dennetiere, S. Mahseredjian, J. Jatskevich, J. Martinez, J. A. Davoudi, A. Saeedifard, M. Sood, V. Wang, X. Cano, J. Mehrizi-Sani, Ali Task Force on Dynamic Average Modeling Working Group on Modeling and Analysis of Systems Transients Using Digital Programs General Systems Subcommittee T&D Committee IEEE Power & Energy Society

Voltage-source converter (VSC) technologies are rapidly evolving and increasing the range of applications in a variety of fields within the power industry. Existing two-and three-level VSC technologies are being superseded by the new modular multilevel converter (MMC) technology for HVDC applications. The computational burden caused by detailed modeling of MMC-HVDC systems in electromagnetic transient-type (EMT-type) programs complicates the simulation of transients when such systems are integrated into large networks. This paper develops and compares different types of models for efficient and accurate representation of MMC-HVDC systems. The results show that the use of a specific type of model will depend on the conducted analysis and required accuracy.

关键词： Average-value model (AVM) electromagnetic-transients (EMT)-type programs high-voltage direct-current (HVDC) transmission modular multilevel converter (MMC) voltage-source converter (VSC)

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Dynamic average modeling of line-commutated converters for power systems applications

Dynamic average modeling of line-commutated converters for p...

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2009 IEEE Power and Energy Society General Meeting, PES '09

作者： Chiniforoosh, S. Jatskevich, J. Dinavahi, Venkata Iravani, Reza Martinez, Juan A. Ramirez, Abner Rezaei-Zare, Afshin Yazdani, Amirnaser Gole, Ani Karimi, Houshang Mahseredjian, Jean Schoder, Karl Naredo, Luis Rioual, Michel Abdulsalam, Sami A. Filizadeh, Shaahin Chiniforoosh, Sina Noda, Taku Department of Electrical and Computer Engineering University of British Columbia Vancouver BC V6T1Z4 Canada Working Group on Modeling and Analysis of System Transients Using Digital Programs General Systems Subcommittee T and D Committee Canada

ISBN: (纸本)9781424442416

Detailed switch-level models of high-pulse-count converters are relatively straightforward to implement using commonly available simulation packages used for digital time-domain simulations and studying of power systems transients. However, such models are computationally intensive due to switching, and could become the bottle-neck for system-level studies with large number of components and controllers. This paper describes approaches for developing dynamic average-value models, i.e., the analytical derivations and parametric modeling. The resulting approximate models do not represent switching but still capture the transient behavior of the original converter circuit. The paper presents the results for 3- and 6-phase rectifiers implemented in PSCAD/EMTDC and Matlab/Simulink and shows that dynamic average models can be very effective. The paper also shows that as the number of pulses/phases increases, so does the complexity of switching pattern that defines the operating modes. ©2009 IEEE.

关键词： Bottles

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