Generalized small-signal dynamical modeling of multi-port DC-DC converters

A general method is presented for modeling multiport DC-DC converters. It copes with multiple inputs, multiple outputs and bidirectional ports, and is based on an averaging formulation. A matrix description is adopted, so the technique can be extended to converters with any number of ports. As an example, a three-port forward-flyback converter is analyzed using symbolic computation software (Maple V).

[1]  Slobodan Cuk,et al.  A general unified approach to modelling switching-converter power stages , 1977 .

[2]  John Van De Vegte,et al.  Feedback control systems , 1986 .

[3]  Philip T. Krein,et al.  On the use of averaging for the analysis of power electronic systems , 1989 .

[4]  R.G. Hoft,et al.  Two port characterization of DC to DC resonant converters , 1990, Fifth Annual Proceedings on Applied Power Electronics Conference and Exposition.

[5]  R. M. Bass,et al.  Switching frequency dependent averaged models for PWM DC-DC converters , 1995 .

[6]  J. Uceda,et al.  A complete study of the double forward-flyback converter , 1988, PESC '88 Record., 19th Annual IEEE Power Electronics Specialists Conference.

[7]  Slobodan Cuk,et al.  A general unified approach to modelling switching-converter power stages , 1976, 1970 IEEE Power Electronics Specialists Conference.

[8]  R. Redl,et al.  Dynamic analysis of switching-mode DC/DC converters , 1991 .

[9]  H. Grotstollen,et al.  A symbolic computation package for averaged analysis of power electronic systems , 1996, Proceedings of Applied Power Electronics Conference. APEC '96.

[10]  Yie-Tone Chen,et al.  Small-signal modeling of multiple-output forward converters with current-mode control , 1994, Proceedings of 1994 Power Electronics Specialist Conference - PESC'94.

[11]  R.D. Middlebrook,et al.  Low-Frequency Characterization of Switched dc-dc Converters , 1972, IEEE Transactions on Aerospace and Electronic Systems.

[12]  Koosuke Harada,et al.  State-space analysis of the cross-regulation , 1979, 1979 IEEE Power Electronics Specialists Conference.

[13]  R. M. Bass,et al.  On the use of averaging for the analysis of power electronic systems , 1989, 20th Annual IEEE Power Electronics Specialists Conference.