Dissipativity learning control (DLC): Theoretical foundations of input–output data-driven model-free control

• DOI: 10.1016/j.sysconle.2020.104831
• Publication Date: 2020-12-16T08:22:35Z
• Authors: Wentao Tang; Prodromos Daoutidis
• Keywords: Leverage (statistics)

Abstract Data-driven, model-free control strategies leverage statistical or learning techniques to design controllers based on data instead of dynamic models. We have previously introduced the dissipativity learning control (DLC) method, where the dissipativity property is learned from the input–output trajectories of a system, based on which L 2 -optimal P/PI/PID controller synthesis is performed. In this work, we analyze the statistical conditions on dissipativity learning that enable control performance guarantees, and establish theoretical results on performance under nominal conditions as well as in the presence of statistical errors. The implementation of DLC is further formalized and is illustrated on a two-phase chemical reactor, along with a comparison to model identification-based LQG control.