Title :
Signal flow graph nonlinear modeling analysis of IDB converter [interleaved dual boost]
Author :
Veerachary, Mummadi ; Senjyu, Tomonobu ; Uezato, Katsumi
Author_Institution :
Fac. of Eng., Ryukyus Univ., Okinawa, Japan
Abstract :
Signal flow graph analysis of an interleaved dual boost converter operating in the continuous current mode is presented in this paper. A simplified signal flow graph of the power converter system is developed, from which large and small-signal dynamic behavior of the converter is studied. Small-signal transfer functions are derived using Mason´s gain formula. A large signal model is developed and programmed in TUT-SIM. The effect of capacitor ESR on the large and small-signal responses is demonstrated. Furthermore, the large signal responses obtained with the signal flow graph method are validated with PSIM simulations
Keywords :
DC-DC power convertors; circuit simulation; nonlinear network analysis; power engineering computing; signal flow graphs; transfer functions; Mason´s gain formula; PSIM; TUT-SIM; capacitor ESR; computer simulation; continuous current mode operation; interleaved dual boost DC/DC power convertor; large signal response; large-signal dynamic behavior; nonlinear circuit modelling; signal flow graph analysis; small-signal dynamic behavior; small-signal response; small-signal transfer functions; Capacitors; Circuits; DC-DC power converters; Flow graphs; Page description languages; Power system reliability; Signal analysis; Switches; Switching converters; Transfer functions;
Conference_Titel :
Industrial Electronics, 2001. Proceedings. ISIE 2001. IEEE International Symposium on
Conference_Location :
Pusan
Print_ISBN :
0-7803-7090-2
DOI :
10.1109/ISIE.2001.931623
