IJBTT

Mitigating Effect of Uncertain Exogenous Dynamics by Parametric Performance Improvement with Optimal Control Design

Mitigating Effect of Uncertain Exogenous Dynamics by Parametric Performance Improvement with Optimal Control Design
	© 2022 by IJETT Journal
	Volume-70 Issue-5
	Year of Publication : 2022
	Authors : Brijraj Singh Solanki, Renu Kumawat, Seshadhri Srinivasan
	DOI :  10.14445/22315381/IJETT-V70I5P223

How to Cite?

Brijraj Singh Solanki, Renu Kumawat, Seshadhri Srinivasan, "Mitigating Effect of Uncertain Exogenous Dynamics by Parametric Performance Improvement with Optimal Control Design," International Journal of Engineering Trends and Technology, vol. 70, no. 5, pp. 209-220, 2022. Crossref, https://doi.org/10.14445/22315381/IJETT-V70I5P223

Abstract
Emerging development in networked control systems has been observed by integrating sensors, controllers, and actuators. The networked control systems (NCSs) are used in various fields due to ease of installation, reduced maintenance, system wiring, and diagnosis. However, the real-time communications via a network of NCS drive it towards vulnerable to the intended adversary attacks. The crucial information traveling through communication networks is more susceptible to being accessed by intruders to degrade the control performance of the networked system. This paper investigates the designing of an optimal controller through integrating principles of H-infinity loop-shaped design to improve the system performance under uncertain exogenous dynamics, i.e., network delay, packet loss (0, 5%, 15%, 20%, 25%, 30%), and other attacks. To detect the intrusive behavior in NCS, the Bernoulli distribution process is employed to model the packet loss probability. The proposed methodology presents the good tracking of reference, improved transient performance, and robust stability margin in a real-time system. Finally, to justify the proposed optimal control design methodology, a numerical simulation is performed whose result ensures mitigating the effects due to uncertain exogenous input.

Keywords
Networked control system, uncertain exogenous input, packet loss, H-infinity loop-shaped design procedure, delays, and attacks.

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