Characterization of Regulated Converters to Ensure Stability and Performance in Distributed Power Supply Systems

The characterization of regulated converters is investigated in order to establish a set of dynamical parameters defining the interactions arising in the interconnected systems such as telecom distributed power supply (DPS) systems. The commercially available converters are usually vaguely specified in respect to those interactions. Provided information do not suffice for predicting the stability and performance. It is noticed that there are certain double reflections, which are not previously recognized but may increase the load sensitivity if not properly considered. The defined parameter set can be also used to design the converters to be more insensitive to different interactions

[1]  Teuvo Suntio,et al.  Use of unterminated two-port modeling technique in analysis of input filter interactions in telecom DPS systems , 2002, 24th Annual International Telecommunications Energy Conference.

[2]  R. D. Middlebrook,et al.  Null double injection and the extra element theorem , 1989 .

[3]  L. Brush.  Distributed power architecture demand characteristics , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..

[4]  A. Wojtasik,et al.  Technical risk and economic factors in telecom on-board power design , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[5]  J. Wanes,et al.  Analyzing and determining optimum on-board power architectures for 48 V-input systems , 2003, Eighteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2003. APEC '03..

[6]  R. D. Middlebrook,et al.  Input filter considerations in design and application of switching regulators. , 1976 .

[7]  Teuvo Suntio,et al.  Input filter interactions in peak-current-mode-controlled buck converter operating in CICM , 2002, IEEE Trans. Ind. Electron..

[8]  Byungcho Choi,et al.  Analysis of input filter interactions in switching power converters , 2005, Twentieth Annual IEEE Applied Power Electronics Conference and Exposition, 2005. APEC 2005..

[9]  Ian Postlethwaite,et al.  Multivariable Feedback Control: Analysis and Design , 1996 .

[10]  Peng Xu,et al.  Topologies and design considerations for distributed power system applications , 2001, Proc. IEEE.

[11]  B. Lehman,et al.  Performance prediction of DC-DC converters with impedances as loads , 2004, IEEE Transactions on Power Electronics.

[12]  Seungwon Choi,et al.  Designing control loop for DC-to-DC converters loaded with unknown AC dynamics , 2002, IEEE Trans. Ind. Electron..

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

[14]  B. Lehman,et al.  Accurate loop gain prediction for load DC-DC converters in on-board distributed power systems , 2004, Nineteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2004. APEC '04..