TY - GEN
T1 - Performance and feature improvements in parareal-based power system dynamic simulation
AU - Park, Byungkwon
AU - Sun, Kai
AU - Dimitrovski, Aleksandar
AU - Liu, Yang
AU - Arif, Md Arifin
AU - Allu, Srikanth
AU - Simunovic, Srdjan
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/14
Y1 - 2020/9/14
N2 - In recent years, a novel Parareal-based approach has been developed for fast transient simulations of large power system interconnections. Parareal belongs to the class of Parallel-in-time algorithms for solution of systems of differential-algebraic equations in parallel over an interval of time. The selection of a reasonably fast and accurate coarse solution is crucial to improve the performance of Parareal algorithm. Semi-analytical solution methods are one promising approach to achieve this goal. They have been investigated, and some preliminary results are presented here. In addition, Parareal-based simulator has been expanded to enable co-simulation with OpenDSS, a widely used open-source distribution system simulator. Preserving the parallel nature of the Parareal approach and taking advantage of the parallel capabilities of the latest versions of OpenDSS, each distribution system can be solved in their entirety on different processors in parallel within the main Parareal simulator. This paper also presents the structure of the transmission and distribution co-simulation and some results with different dynamic models of inverter-based resources in the distribution systems.
AB - In recent years, a novel Parareal-based approach has been developed for fast transient simulations of large power system interconnections. Parareal belongs to the class of Parallel-in-time algorithms for solution of systems of differential-algebraic equations in parallel over an interval of time. The selection of a reasonably fast and accurate coarse solution is crucial to improve the performance of Parareal algorithm. Semi-analytical solution methods are one promising approach to achieve this goal. They have been investigated, and some preliminary results are presented here. In addition, Parareal-based simulator has been expanded to enable co-simulation with OpenDSS, a widely used open-source distribution system simulator. Preserving the parallel nature of the Parareal approach and taking advantage of the parallel capabilities of the latest versions of OpenDSS, each distribution system can be solved in their entirety on different processors in parallel within the main Parareal simulator. This paper also presents the structure of the transmission and distribution co-simulation and some results with different dynamic models of inverter-based resources in the distribution systems.
UR - http://www.scopus.com/inward/record.url?scp=85096353006&partnerID=8YFLogxK
U2 - 10.1109/POWERCON48463.2020.9230544
DO - 10.1109/POWERCON48463.2020.9230544
M3 - Conference contribution
AN - SCOPUS:85096353006
T3 - 2020 IEEE International Conference on Power Systems Technology, POWERCON 2020
BT - 2020 IEEE International Conference on Power Systems Technology, POWERCON 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE International Conference on Power Systems Technology, POWERCON 2020
Y2 - 14 September 2020 through 16 September 2020
ER -