Advanced methods, models, and algorithms for multi-rate co-simulation of power system transients
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Date
2021-05-25
Authors
Rupasinghe, Rupasinghe Arachchige Tharinda Janesh Kumar
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Abstract
This thesis develops advanced methods, models, and algorithms for next generation co-simulation engines for electromagnetic transient (EMT) type simulations by combining the benefits of dynamic phasors (DPs), frequency adaptive simulation of transients, parallel processing, multi-rate simulation, and accuracy of EMT simulators. The thesis addresses a number of important aspects of power system co-simulation including (i) conditions for numerical stability and their reliance on the interface topology, (ii) dynamic phasor extraction methods and their capabilities to represent typical power system phenomena, (iii) adaptive time-step adjustments when the simulated time-horizon includes varying harmonic contents, and (iv) layered electromagnetic transient, dynamic phasor, and transient stability (TS) simulations. The research develops industrial-grade prototypes for co-simulation with EMT and DP-based solvers, and multi-layered co-simulation of EMT, TS, and DP-based solvers based upon novel algorithms. It also implements a large number of component models and interfacing mechanisms for such systems as electric machines, transformers, and advanced converter systems. Illustrative examples are included to demonstrate the thesis' findings, and validate the accuracy and computational benefits of the developed methods, models, and algorithms.
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Keywords
Co-simulation, Dynamic phasors, Electromagnetic transient (EMT) simulation, Multi-rate simulation, Transient stability, Phasor extraction, Network interface stability
Citation
J. Rupasinghe, S. Filizadeh, and A. Gole, and K. Strunz, “Multi-rate co-simulation of power system transients using dynamic phasor and EMT solvers,” The Journal of Engineering, pp. 854–862, 2020
J. Rupasinghe, S. Filizadeh, and D. Muthumuni, “A method for modeling and testing modular multilevel converters and their controls in large power system simulation studies,” in Proc. CIGRE Canada Conference & Expo, pp. 1–9, 2020
J. Rupasinghe, S. Filizadeh, and D. Muthumuni, “A co-Simulation platform for modeling and testing modular multilevel converters and their controls in large networks,” in Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 2020), Denmark, 2020
J. Rupasinghe, S. Filizadeh, and K. Strunz, “Assessment of dynamic phasor extraction methods for power system co-simulation applications,” Electric Power Systems Research, vol. 197, 2021.
J. Rupasinghe, S. Filizadeh, and D. Muthumuni, “A method for modeling and testing modular multilevel converters and their controls in large power system simulation studies,” in Proc. CIGRE Canada Conference & Expo, pp. 1–9, 2020
J. Rupasinghe, S. Filizadeh, and D. Muthumuni, “A co-Simulation platform for modeling and testing modular multilevel converters and their controls in large networks,” in Proc. IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 2020), Denmark, 2020
J. Rupasinghe, S. Filizadeh, and K. Strunz, “Assessment of dynamic phasor extraction methods for power system co-simulation applications,” Electric Power Systems Research, vol. 197, 2021.