Parallel Dynamics Simulation Using a Krylov-Schwarz Linear Solution Scheme
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Illinois Institute of Technology, Chicago, IL (United States)
Fast dynamics simulation of large-scale power systems is a computational challenge because of the need to solve a large set of stiff, nonlinear differential-algebraic equations at every time step. The main bottleneck in dynamic simulations is the solution of a linear system during each nonlinear iteration of Newton’s method. In this paper, we present a parallel Krylov- Schwarz linear solution scheme that uses the Krylov subspacebased iterative linear solver GMRES with an overlapping restricted additive Schwarz preconditioner. As a result, performance tests of the proposed Krylov-Schwarz scheme for several large test cases ranging from 2,000 to 20,000 buses, including a real utility network, show good scalability on different computing architectures.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Electricity Delivery and Energy Reliability
- Grant/Contract Number:
- AC02-06CH11357
- OSTI ID:
- 1374603
- Journal Information:
- IEEE Transactions on Smart Grid, Vol. 8, Issue 3; ISSN 1949-3053
- Publisher:
- IEEECopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
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