Performance Evaluation of Networks Using Gain Scheduling PID Networked Control System for Nonlinear Systems
Mmasom Iruoma Ndefo
Department of Electronic and Computer Engineering, Faculty of Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria.
Solomon Chibuzo Nwafor *
Department of Mechatronic Engineering, Faculty of Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria.
Chidiebele C. Udeze
Department of Electronic and Computer Engineering, Faculty of Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria.
Oghenevwaire Akpeghagha
Africa Center of Excellence for Sustainable Power and Energy Development, University of Nigeria, Nsukka, Enugu State, Nigeria.
Oluchi Christiana Ugbe
Department of Electrical Engineering, Faculty of Engineering, University of Nigeria, Nsukka, Enugu State, Nigeria.
*Author to whom correspondence should be addressed.
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.
Keywords: Networked control systems, gain scheduling, proportional integral derivative, ethernet, controlled area network, switched ethernet