H-infinity Control Implementation Example with Robust Control Framework

This article presents a practical implementation example of H-infinity control coupled with an exploration of robust control concepts. H-infinity control represents an optimization-based controller design methodology aimed at maximizing system stability margins and robustness to handle diverse disturbances and uncertainties. In this implementation case, we demonstrate how to deploy H-infinity control for managing complex industrial processes, typically involving MATLAB's Robust Control Toolbox functions like 'hinfsyn' for controller synthesis. The discussion encompasses fundamental robust control principles and methodologies for designing controllers that maintain performance under system uncertainties and external disturbances. Through code-oriented explanations, we illustrate key algorithmic steps including weighting function selection, generalized plant formulation, and controller optimization using gamma-iteration techniques. After studying this material, you will gain practical knowledge of H-infinity control fundamentals and understand their application to real-world industrial processes through implementable control strategies.