BACKSTEPPING CONTROLLER DESIGN FOR AUTOMATIC STABILIZATION OF BLOOD-GLUCOSE LEVEL USING ARTIFICIAL PANCREAS IN TYPE 1 DIABETES

Session Name
ARTIFICIAL PANCREAS
Session Type
E-POSTER VIEWING (EXHIBITION HOURS)
Date
20.02.2020, Thursday
Session Time
09:30 - 15:30
Channel
E-Poster Area
Lecture Time
09:32 - 09:33
Presenter
  • Sheraz A. Babar, Pakistan
Authors
  • IFTIKHAR Ahmad, Pakistan
  • Safdar A. Khan, Pakistan
  • Sheraz A. Babar, Pakistan

Abstract

Background and Aims

To regulate blood glucose of a diabetic patient; artificial pancreas is used to externally infuse insulin in the patient body. This work presents the design and analysis of the nonlinear controller that enables the automatic regulation of blood glucose level in type-1 diabetic patients.

Methods

We have proposed a Lyapunov based nonlinear Backstepping controller. In Berman’s Minimal Model, the meal disturbance phenomenon is considered as fixed value. One of the enhancements that we have introduced is the annexure of the variable meal disturbance as a dynamic state to the existing BMM. The asymptotic stability of the system is proven via mathematical analysis using Lyapunov theory.

Results

To demonstrate the performance of the proposed controller, simulations are carried out through MATLAB/Simulink and results of the proposed controller has been compared with PID controller.

Conclusions

The propsed nonlinear controller enables the automatic regulation of blood glucose level far better than PID controller.

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