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Performance Comparison Type of equation H-infinity here. and LQR Controllers for the Pressure Regulation of a Hypersonic Wind Tunnel

By Rajani S. H and Usha Nair


Abstract: Hypersonic wind tunnels are used to study the effect of air moving past the fighter planes, space vehicles and similar specimens under test. This paper aims to compare the performance of a h-infinity controller with that of a linear quadratic regulator (LQR) controller for regulating the pressure inside the settling chamber of a hypersonic wind tunnel. The linear model for both the controllers is one and the same and it is state controllable and observable. The h-infinity controller design is based on the selection of weighing function whereas the design of the LQR controller depends on the selection of optimal state feedback controller gain matrix. Performance comparison of both the controllers is carried out based on the settling time, peak overshoot and rise time. Simulation results show that h-infinity controller has better settling time compared to LQR controller

Topics: H-infinity controller, Hypersonic wind tunnel, Linear quadratic regulator, Settling chamber pressure, Weighting function
Year: 2014
OAI identifier: oai:CiteSeerX.psu:
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