Modeling and Stability Analysis of DC-DC Buck Converter via Takagi-Sugeno Fuzzy Approach

摘要：

The DC-DC voltage-mode controlled buck converteris a nonlinear,nonsmooth system that presents different circuittopologies within one switching cycle.This paper develops aTakagi-Sugeno fuzzy approach for modeling this circuit to cap-ture all the essential nonlinearities that occur in fast time scale.Based on the resulting model,we propose tractable mathematicalstability analysis for identifying fast-scale instabilities of theconverter,more specifically the edge of bifurcation phenomena,employing nonsmooth Lyapunov functions.The search for theLyapunov functions are formulated as Linear Matrix Inequalities(LMI)feasibility problem which easily can be solved using up-to-date interior point methods.

作者: Kamyar Mehran Damian Giaouris Bashar Zahawi

作者单位: School of Electrical,Electronic and Computer Engineering,Newcastle University,Newcastle upon Tyne,UK

会议类型: 国际会议

会议名称: 2008 3rd International Conference on Intelligent System and Knowledge Engineering(第三届智能系统与知识工程国际会议)(ISKE 2008)

会议地点: 厦门

会议语种:英文

页码: 401-406

在线出版日期: 2008-11-17（万方平台首次上网日期，不代表论文的发表时间）