论文信息 - Analysis and modeling of a two-input DC/DC converter with two controlled variables and four switched networks

Analysis and modeling of a two-input DC/DC converter with two controlled variables and four switched networks

A two-input tri-state DC/DC converter was presented by the authors (1994) capable of performing solar array peak-power tracking, battery power conditioning, and output voltage regulation all within the same converter structure. At light loads and during periods of low insolation, converter operation will naturally evolve through four linear switched networks. In this paper, the small-signal stability of the tri-state converter is analyzed and a large-signal averaged model is derived capable of predicting the dynamic behavior during and following transitions to and from this fourth state.

F.D. Rodriguez | W.G. Imes | F. Rodriguez | W. Imes

[1] Slobodan Cuk,et al. A general unified approach to modelling switching DC-tO-DC converters in discontinuous conduction mode , 1977, 1977 IEEE Power Electronics Specialists Conference.

[2] Jesse E. Chen,et al. A refined nonlinear averaged model for constant frequency current mode controlled PWM converters , 1991 .

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

[4] W. Imes,et al. A two-input tri-state converter for spacecraft power conditioning , 1994 .

[5] B. M. Brown. The mathematical theory of linear systems , 1962 .

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

[7] A. Capel,et al. High-power conditioning for space applications , 1988, Proc. IEEE.