LQ optimal robust multivariable PID control for dynamic positioning of ships with norm-bounded parametric uncertainties

F Gopmandal, A Ghosh, A Kumar - Ocean Engineering, 2022 - Elsevier
The design of a suitable controller for dynamic positioning (DP) of ships is a challenging task
keeping the hydrodynamic uncertainties in mind. The magnitude and rate constraints on the …

LQR-based MIMO PID control of a 2-DOF helicopter system with uncertain cross-coupled gain

F Gopmandal, A Ghosh - IFAC-PapersOnLine, 2022 - Elsevier
This work deals with designing multi-input multi-output (MIMO) proportional-integral-
derivative (PID) controllers to achieve linear quadratic (LQ) performance of a laboratory …

Adaptive PI event-triggered control for MIMO nonlinear systems with input delay

J Wang, Y Wu, CLP Chen, Z Liu, W Wu - Information Sciences, 2024 - Elsevier
An adaptive PI event-triggered control method for a class of multi-input and multi-output
(MIMO) nonlinear systems with uncertain input delay is proposed. First, a new variable is …

Direct Synthesis of Reduced-Order Controllers with Integrating Action for a Class of Norm-Bounded Uncertain Plants

F Gopmandal, A Ghosh… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Reduced-order controller design for uncertain plants is, in general, iterative in nature. This
paper identifies a class of multivariable plant transfer functions having uncertain parameters …

Robust Stability of Linear Time-Invariant Systems with Hybrid Uncertainties

Y Li, J Lu - … Conference on Automation, Control and Electronics …, 2023 - ieeexplore.ieee.org
This paper presents a study on the robust stability analysis of linear time-invariant systems
with parameter uncertainties and norm-bounded uncertainties. By utilizing the structured …