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arXiv · 1412.1868

A structural solution to the monotonic tracking control problem

Lorenzo Ntogramatzidis·Jean-Francois Tregouet·Robert Schmid·Augusto Ferrante
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Abstract

In this paper we present a method for designing a linear time invariant (LTI) state-feedback controller to monotonically track a constant step reference at any desired rate of convergence for any initial condition. Necessary and sufficient constructive conditions are given to deliver a monotonic step response from all initial conditions. This method is developed for multi-input multi-output (MIMO) systems, and can be applied to square and non-square systems, strictly proper and non-strictly proper systems, and, importantly, also minimum and non-minimum phase systems. The framework proposed here shows that for MIMO LTI systems the objectives of achieving a rapid settling time, while at the same time avoiding overshoot and/or undershoot, are not necessarily competing objectives.

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Lorenzo Ntogramatzidis, Jean-Francois Tregouet, Robert Schmid, Augusto Ferrante. 2014-12-05. A structural solution to the monotonic tracking control problem. https://arxiv.org/abs/1412.1868

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