Title :
Modeling of cascade buck converters
Author :
Veerachary, Mummadi
Author_Institution :
Dept. of Electr. Eng., Indian Inst. of Technol., New Delhi, India
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;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205027
