Sliding Dynamics Bifurcations in the Control of BOOST Converters
World Congress, Volume # 18 | Part# 1
Ponce, Enrique; Pagano, Daniel Juan
Digital Object Identifier (DOI)
Hybrid systems stability; Switched discrete and hybrid systems
Dynamical systems techniques are exploited to assess the quality of switching control strategies leading to sliding model controllers (SMC). A boost converter controlled by SMC through a washout filter is considered. The crucial role of possible bifurcations in the ideal sliding dynamics is stressed. The possible reduction of the 3D-sliding dynamics to that of certain topologically equivalent planar standard vector field is emphasized so that the existence of Hopf bifurcations in the ideal sliding dynamics can be rigorously shown. Both a deeper insight in the global behavior of the controlled system and valuable design criteria are obtained.
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