Robust control analysis using μ-synthesis for nonlinear control system

The objective of this paper is to analyze the non-linear system for its robustness which is controlled by Type 1 Fuzzy GA controller. The control object is to control temperature of the system. System is Continuous Stirred Tank Reactor (CSTR), which exhibits highly non-linear dynamics. The process taking place in this CSTR is cooling only. Process Reaction curve is used to have system temperature response. In this paper, system is tuned with the help of intelligent optimization technique, and then analyzed the response in MATLAB Simulink model. Both PID and Fuzzy GA controllers are designed and implemented on CSTR for temperature control. Both results are compared and robust analysis of system is done with the help of μ synthesis. Robust analysis of the system is carried out to ensure the stability of the system. For given weight value we checked the robust stability of the system.