Controller Design of Twin Spool Gas Turbine using Reduced Output Feedback Sliding Mode Control

Abstract

The twin spool gas turbine engine, which is an integral part of the avionics, is a nonlinear large order multi-input multi-output dynamical system. The design of a controller for the turbine engine using classical techniques is a tedious task and implementation of the complex controller is also an issue. The gas turbine system model is an uncertain one due to the existence of multiple operating points. Thus, a robust control technique is required for effective control of the system. Sliding mode control is a powerful technique which has the capability of handling systems with uncertainty. The basic philosophy of this paper is to design a sliding mode controller with model order reduction. DSP implementation of the tracking-designed tracking controller on the original system is easier due to reduced controller complexity.

Keywords:

• Multi-input multi-output controller
• Model order reduction
• Sliding mode control
• Tracking

Additional information

Notes on contributors

Janardhanan Sivaramakrishnan

Janardhanan Sivaramakrishnan received his Bachelor’s degree in Instrumentation and Control Engineering from University of Madras in 2000. He obtained his masters and doctoral degrees in Systems and Control engineering from Indian Institute of Technology Bombay in 2002 and 2006 respectively. Currently, he is a faculty with the Department of Electrical Engineering, Indian Institute of Technology Delhi.

His research interests include robust control, sliding mode control, model reduction and discrete-time systems. He has more than 70 publications in national and international journals and conferences of repute. E-mail: [email protected]

Rajesh Tiwari

Rajesh Tiwari received his B.Tech degree in Electronics and Communication from University of Allahabad in 1999. M.Tech degree in Control and automation from Indian institute of technology in 2010. He worked as communication engineer before joining Defence Research and Development Organization in 2003, where he is now a senior scientist. He is also the member of IETE. His research interests include control and signal processing. E-mail: [email protected]