Robust Optimization for Nonlinear Dynamic Systems

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Event details

Date 09.11.2015
Hour 14:30
Speaker Moritz Diehl
Location
Category Conferences - Seminars
The talk reviews numerical approaches to approximate (a) the propagation of uncertainty and (b) the feedback policies in nonlinear dynamic systems -­‐   both preferably in a conservative fashion. We review and extend results from linear system theory and discuss extensions to the case of nonlinear systems that satisfy Lipschitz bounds on their nonlinearity.  We present linearization based approaches as a particularly useful heuristic. Their computational efficiency is significantly affected by the way higher order derivatives are generated, and we discuss the advantages and disadvantages of forward mode, reverse mode, and Lyapunov differential equation (LDE) based approaches, and present numerically efficient discretization schemes for LDE. We finally make a connection   between   robust   optimization   and   stability   optimization   and   show   how   to solve periodic stability optimization problems for nonlinear systems with parameterized feedback policies numerically by use of LDE. 

The talk presents joint work with Boris Houska, Joris Gillis and Greg Horn.