TY - GEN
T1 - Modeling and stability analysis of DC-DC buck converter via Takagi-Sugeno fuzzy approach
AU - Mehran, Kamyar
AU - Giaouris, Damian
AU - Zahawi, Bashar
PY - 2008
Y1 - 2008
N2 - The DC-DC voltage-mode controlled buck converter is a nonlinear, nonsmooth system that presents different circuit topologies within one switching cycle. This paper develops a Takagi-Sugeno fuzzy approach for modeling this circuit to capture all the essential nonlinearities that occur in fast time scale. Based on the resulting model, we propose tractable mathematical stability analysis for identifying fast-scale instabilities of the converter, more specifically the edge of bifurcation phenomena, employing nonsmooth Lyapunov functions. The search for the Lyapunov functions are formulated as Linear Matrix Inequalities (LMI) feasibility problem which easily can be solved using upto-date interior point methods.
AB - The DC-DC voltage-mode controlled buck converter is a nonlinear, nonsmooth system that presents different circuit topologies within one switching cycle. This paper develops a Takagi-Sugeno fuzzy approach for modeling this circuit to capture all the essential nonlinearities that occur in fast time scale. Based on the resulting model, we propose tractable mathematical stability analysis for identifying fast-scale instabilities of the converter, more specifically the edge of bifurcation phenomena, employing nonsmooth Lyapunov functions. The search for the Lyapunov functions are formulated as Linear Matrix Inequalities (LMI) feasibility problem which easily can be solved using upto-date interior point methods.
UR - http://www.scopus.com/inward/record.url?scp=60349084360&partnerID=8YFLogxK
U2 - 10.1109/ISKE.2008.4730963
DO - 10.1109/ISKE.2008.4730963
M3 - Conference contribution
AN - SCOPUS:60349084360
SN - 9781424421978
T3 - Proceedings of 2008 3rd International Conference on Intelligent System and Knowledge Engineering, ISKE 2008
SP - 401
EP - 406
BT - Proceedings of 2008 3rd International Conference on Intelligent System and Knowledge Engineering, ISKE 2008
T2 - Proceedings of 2008 3rd International Conference on Intelligent System and Knowledge Engineering, ISKE 2008
Y2 - 17 November 2008 through 19 November 2008
ER -