[gravatar email=”lucas@pcka.com” class=”alignleft” size=”96″ default=”https://pcka.com/wp-content/uploads/2010/08/gravatar.jpg”]C. E. Lucas received the BSEE, MSEE, and PhD from Purdue University in 1991, 1997, and 2003, respectively. His research interests include distributed computing and parallel/multi-rate integration techniques as applied to the simulation of electromechanical power systems. Since joining PCKA, he has served as the principal investigator on several SBIR and STTR Phase I and II efforts as well as other contracts encompassing several branches of the Department of Defense. He is a co-inventor of Distributed Heterogeneous Simulation (DHS) and has authored or co-authored over 20 technical papers. He joined PCKA as an Engineer in 1997 and is currently a Senior Engineer and Director of Computer and Networking Services. Selected Publications B. P. Loop, C. E. Lucas, E. A. Walters, M. Hasan, S. Field, N. Kumbar, “Improvements in the Distributed Heterogeneous Simulation of Aircraft Electric Power Systems,” Proceedings 2006 SAE Power Systems Conference, November 7-9, 2006, New Orleans, LA. E. A. Walters, M. Hasan, C. E. Lucas, O. Wasynczuk, P. T. Lamm, “Variable Communication Rates in a Distributed Simulation,” Proceedings 3rd International Energy Conversion Engineering Conference, August 2005, San Francisco, CA. C. E. Lucas, E. A. Walters, O. Wasynczuk, P. T. Lamm, “An Algorithm for the Optimal Allocation of Subsystem Simulations within a Distributed Heterogeneous Simulation,” SAE Transactions Journal of Aerospace, July 2005, pp. xxxxxxxx, Paper # 2004-01-3183. C. E. Lucas, E. A. Walters, O. Wasynczuk, P. T. Lamm, “Cross-Platform Distributed Heterogeneous Simulation of a MEA Power System,” Proceedings SPIE Defense and Security Symposium, March 2005. S. Graham, I. Wong, W. Chen, A. Lazarevic, K. Cleek, E. A. Walters, C. E. Lucas, O. Wasynczuk, P. Lamm, “Distributed Simulation,” Aerospace Engineering, November 2004, pp. 24–27. S. D. Pekarek, O. Wasynczuk, E. A. Walters, J. V. Jatskevich, C. E. Lucas, N. Wu, P. T. Lamm, “An Efficient Multi-Rate Simulation Technique for Power Electronic-Based Systems,” IEEE Transactions on Power Systems, vol. 19, no. 1, February 2004, pp. xxxxx. C. E. Lucas, E. A. Walters, J. Jatskevich, “Distributed Heterogeneous Simulation of Naval Integrated Power System,” American Society of Naval Engineers (ASNE), Electric Machine Technology Symposium (EMTS) 2004, January 27-29, 2004, Philadelphia, PA. C. E. Lucas, E. A. Walters, J. Jatskevich, O. Wasynczuk, E. L. Zivi, “Distributed Heterogeneous Simulation of Large-Scale Dynamical Systems,” 13th Ship Control Systems Symposium, April 2003, Orlando, FL. C. E. Lucas, E. A. Walters, J. Jatskevich, O. Wasynczuk, P. T. Lamm “A Distributed Heterogeneous Simulation of a Representative Aircraft Power System,” 2002 SAE Power Systems Conference, October 29-31, 2002, Coral Springs, FL. Paper #2002-01-3189. 10. E. A. Walters, O. Wasynczuk, J. V. Jatskevich, C. E. Lucas, “An Observer-Based Automated Averaging Technique for Power Electronic Circuits,” SAE Transactions Journal of Aerospace, sec. 1, set 3, Month 2000, pp....
Read MoreImprovements in the Distributed Heterogeneous Simulation of Aircraft Electric Power Systems
B. P. Loop, C. E. Lucas, E. A. Walters, M. Hasan, PC Krause and Associates, Inc; S. Field , N. Kumbar, Naval Air Systems Command Two recent enhancements to Distributed Heterogeneous Simulation (DHS) are variable communication rates and higher-order predictors. Variable communication automatically controls the communication interval between any two subsystems in an attempt to achieve a desired accuracy during transient periods and maximize speed during steady-state periods. Higher-order predictors can better estimate the values of exchanged variables between data exchange instances, which can improve accuracy and possibly require fewer exchanges. A comparison between a single-computer simulation of an aircraft electric power system and an equivalent three-computer DHS show that the variable communication technique enables more accuracy and higher speed distributed simulations than fixed-step communication. In addition, higher-order predictors are shown to increase accuracy in some cases. 2006 SAE Power Systems Conference, November 7–9, 2006, New Orleans, LA. Paper...
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