Model reference fuzzy cascade controller: a novel method for attaining desired mass flow in a wind tunnel Online publication date: Thu, 02-Jul-2015
by S.B. Rini Jones; P. Poongodi; A. Immanuel Selvakumar
International Journal of Information and Communication Technology (IJICT), Vol. 7, No. 4/5, 2015
Abstract: Hypersonic wind tunnels can hit hypersonic speeds and is used to test newly designed space crafts, airplanes, etc. The prototype of the vehicle is made and it is tested in the wind tunnel. While performing the experiment the pressure in the settling chamber has to be maintained constant, to get the desired Mach number speed and mass flow rate. Here, a novel non-linear control method called model reference fuzzy cascade (MRFC) controller is proposed and simulated for hypersonic wind tunnels. It consists of a cascade controller along with model reference and fuzzy controllers. Fuzzy controller is used instead of other neural controllers, since it is easy to implement and train them. The performance of MRAC controller is analysed with that of model reference fuzzy adaptive PI (MRFA-PI) controller. The simulation results shows that the MRFC controller is performing well compared to MRFA-PI for this process in terms of settling time and IAE.
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