Performance Evaluation of Networks Using Gain Scheduling PID Networked Control System for Nonlinear Systems

Abstract

Aims: Though Networked Control Systems (NCS) have great benefits, such as remote control, low costs, and better flexibility, it also has several drawbacks such as network-induced time delay and packet loss, which may result in performance degradation and system instability in nonlinear systems. This paper proposes a gain scheduling Proportional-Integral-Differential (GS-PID) controller design to address the performance degradation issues associated with NCS. Study Design: TrueTime toolbox simulator in MATLAB is used for the NCS simulation and network comparison. Place and Duration of Study: Department of Electronic and Computer Engineering, Faculty of Nigeria, University of Nigeria, Nsukka Enugu State, Nigeria, between March 2022 and March 2023. Methodology: The performance of the proposed GS-PID and conventional PID controllers is compared through simulations on three different networks (Ethernet, Controlled Area Network (CAN), and switched ethernet). Results: The GS-PID controller outperforms the traditional PID controller with improvements in settling time and overshoot ranging from 15% to 22%. Conclusion: The results of the GS-PID over the conventional PID on these three networks highlight the effectiveness of the proposed approach and show potential in improving system performance.