Safdar A. Khan, Pakistan
National University of Sciences and Technology, NUST School of Electrical Engineeringand Computer SciencesPresenter of 1 Presentation
LYAPUNOV BASED SYNERGETIC CONTROLLER FOR THE CONTROL OF INSULIN-SUGAR LEVEL IN TYPE 1 DIABETIC PATIENTS
Abstract
Background and Aims
The governing state-space dynamics, of blood glucose and insulin in human body, are inspired with the Bergman minimal model. The insulin infusion rate, through pump, is added to the model as a dynamic state. This work presents the design and analysis of nonlinear controller to regulate blood glucose level through artificial pancreas.
Methods
The Lyapunov based nonlinear synergetic control technique is employed to design controller for pumping insulin. The complete mathematical derivation and analysis is provided in detail which accounts for the factors such as meal disturbance, physical nonlinearities and sensor noise. The efficiency of the proposed controller and comparison of the results are demonstrated through simulations using MATLAB/Simulink.
Results
With the simulation results we have observed the tracking response of the proposed controller which has been compared with PID controller.
Conclusions
The results show that the proposed controller performs very nicely as compare to the conventional PID controller even in the presence of meal disturbance.