Multicore simulation of an ungrounded power system

Abstract

Abstract-An approach to partition power system simulations formulated in mesh currents as variables is presented. Time domain simulations of large-scale power systems are notoriously slow due to the system order and amount of time-varying components. A common approach to reduce simulation run-time is to partition power systems using Bergeron's travelling-wave model and to simulate the subsystems on a distributed computer. In this paper, power systems are partitioned using a new mesh tearing approach, and the subsystems distributed across the cores of a quad-core computer. A notional shipboard power system model was partitioned using the proposed partitioning approach, which is used to show how the simulation run-time reduces as a function of the number of partitions and number of power converters.

Technical cross-fertilization between terrestrial microgrids and ship power systems

“…Electromagnetic transient simulations follow by answering questions requiring scrutiny at a much higher resolution (e.g., power quality). The time resolution of this simulation type is O(10 -6 ) s and takes considerable time to obtain results [68].…”

Multicore methods to accelerate ship power system simulations

“…Experience [1] in simulation shows that the run time of large-scale shipboard power system simulations are too time consuming to be useful in early-stage design trades. These lengthy run times limit the rate at which case studies can be run and consume significant research resources.…”