The Implementation and Effectiveness of Linear Interpolation Within Digital Simulation
To investigate the effectiveness of power electronic controllers (Custom Power, FACTS and HVdc transmission), robust and precise simulation was required. Building on Hermann Dommel’s network solution method, some ideas from the Netomac digital simulation program and from the University of Manitoba, extensive development on the EMTDC program was undertaken. To balance solution speed and precision in switching, “interpolation” was applied to the EMTDC solution method. The value of this work is now evident when we use PSCAD/EMTDC to investigate Voltage Sourced Converter applications and where switching precision to within a tenth of a microsecond is essential:
P. Kuffel, K. Kent, G. Irwin, “The Implementation and Effectiveness of Linear Interpolation Within Digital Simulation” Proceedings of IPST’95, International Conference on Power System Transients, Lisbon, September 3-7, 1995, pp 494-504.
A.M.Gole, I.T.Fernando, G.D.Irwin, O.B.Nayak, “Modeling of Power Electronic Apparatus: Additional Interpolation Issues”, International Conference on Power Systems Transients (IPST97), Seattle, June 22-26, 1997, pp. 23-28.