C. E. Lucas, E. A. Walters, J. Jatskevich , PC Krause and Associates, Inc; O. Wasynczuk, Purdue University; P. T. Lamm, U.S. Air Force Research Laboratory; T. E. Neeves, Naval Surface Warfare Center
In this paper, a powerful technique of simulating large-scale dynamical systems is applied to a naval integrated power system. This approach enables the overall system simulation to be formed as the dynamic interconnection of interdependent simulations, each representing a specific electrical, mechanical, hydraulic, and/or thermal component/subsystem. Each simulation may be developed independently using possibly different commercial-off-the-shelf simulation programs thereby allowing the most suitable language or tool to be used based on the design/analysis needs. The simulation paradigm provides a structure that offers a convenient means of implementing simulations utilizing single-, multi-, or parallel-rates integration approaches as well as any combination thereof. Specifically, each component can be simulated using a time-step and integration algorithm that is best suited for that subsystem. The integrated power system is an advanced naval electric power system that includes a zonal dc electric distribution system and an integrated electric generation and propulsion system. The composite system simulation is implemented on a three-computer network of personal computers by interconnecting simulations of the constituent subsystems. In addition to the aforementioned advantages, it is shown that significant improvements in computational speed are achieved using this approach.
Proceedings American Society of Naval Engineers Electric Machine Technology Symposium, January 27- 29, 2004, Philadelphia, PA