Multi-Threaded Real-Time Simulations of Fluid Power Systems Using Transmission Line Elements
2012 (English)Conference paper (Refereed)
The demand for large-scale real-time simulations of fluid power systems is in-creasing, due to growing demands for added functionality. Real-time simulationscan be used in for example hardware-in-the-loop experiments and embeddedcontrol systems. In order to achieve real-time performance, it is often necessaryto use small or simplified models, reducing the usefulness and accuracy of theresults. This article proposes the use of transmission line modelling (TLM) forexploiting multi-core hardware in real-time and embedded systems. The charac-teristics of the TLM method are analysed to identify difficulties and possibilities.A method for how to parallelise TLM models is then presented. Subsequently, aprogramming interface for implementing the parallel models in the target systemsis introduced. Practical experiments show that the approach works and that themethod is applicable. So far, however, it has required great effort on the part ofthe engineer, both when it comes to programming, compiling and importing themodel into the target environments, although some attempts to automate the pro-cedure have been successful, reducing the level of complexity.
Place, publisher, year, edition, pages
Real-time simulation, Distributed modelling, Transmission line mod- elling, Parallel simulation, Multi-core, Model fidelity
National CategoryFluid Mechanics and Acoustics Other Mechanical Engineering
IdentifiersURN: urn:nbn:se:liu:diva-76377OAI: oai:DiVA.org:liu-76377DiVA: diva2:514165
8th International Fluid Power Conference, March 26-28, 2012, Dresden, Germany