Modeling of cascade buck converters

Author

Veerachary, Mummadi

Author_Institution

Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India

Volume

3

fYear

2003

fDate

25-28 May 2003

Abstract

In this paper signal flow graph non-linear modeling of cascade buck converters is presented. A unified signal flow graph model of the converter is developed, and then large, small-signal and steady-state models are deduced from the unified graph. Converter performance expressions are derived. A large-signal model is developed and programmed in the TUTSIM simulator. Large-signal responses against supply and load disturbances are obtained. The validity of the proposed signal flow graph modeling is verified through PSIM simulator results.

Keywords

DC-DC power convertors; circuit simulation; signal flow graphs; PSIM simulator; TUTSIM simulator; cascade buck converters; converter performance expressions; large-signal model; large-signal responses; load disturbances; signal flow graph nonlinear modeling; small-signal models; steady-state models; unified signal flow graph model; Aerodynamics; Buck converters; DC-DC power converters; Flow graphs; Mathematical model; Power system reliability; Pulse width modulation converters; Steady-state; Switches; Switching converters;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on

Print_ISBN

0-7803-7761-3

Type

conf

DOI

10.1109/ISCAS.2003.1205027

Filename

1205027