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Stability Analysis of Cascaded DC–DC Power Electronic System
Author(s) -
Mummadi Veerachary,
Singamaneni Bala Sudhakar
Publication year - 2009
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.20478
Subject(s) - ćuk converter , boost converter , converters , interfacing , buck–boost converter , flyback converter , forward converter , buck converter , electrical engineering , engineering , electronic engineering , power (physics) , capacitor , computer science , voltage , physics , quantum mechanics , computer hardware
Stability analysis of the cascaded dc‐dc power electronic system is analyzed in this paper. For demonstration boost converter supplying, the hybrid switched capacitor converter considered as an example. The boost converter is acting as the bus converter, 42 V bus, while the switched capacitor converter is serving as the point of load converter. The two converters are provided with voltage‐mode and peak current‐mode controllers, respectively. Converter state‐space, two‐port network models are developed and then stability of the cascaded system has been analyzed. Cascaded system interaction effects, (i) source converter power handling capability with switching load and (ii) load converter interfacing capability with bus converter, are analyzed. Simulation and experimental results are provided for verification purpose. Copyright © 2009 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.