On the Optimal Control of Switch-Mode DC-DC Converters

This paper presents a new solution approach to the optimal control problem of fixed frequency switch-mode DC-DC converters using hybrid systems methodologies. In particular, the notion of the N-step model is introduced to capture the hybrid nature of these systems, and an optimal control problem is formulated and solved online, which allows one to easily incorporate in the controller design safety constraints such as current limiting. Simulation results are provided that demonstrate the prospect of this approach.

• Type: Conference
• Year: 2004
• Where: HYBRID
• Authors: Tobias Geyer, Georgios Papafotiou, Manfred Morari
• Keywords: HYBRID 2004, Hybrid Systems, Hybrid Systems Methodologies, Optimal Control Problem, Switch-mode Dc-dc Converters