Simulation analysis of DC power-supply system stability

Author

Tanaka, Tom ; Serada, Takuji ; Sakai, Tatsuo

Author_Institution

NTT Telecommun. Energy Labs., Tokyo, Japan

Volume

2

fYear

2001

fDate

2001

Firstpage

759

Abstract

The authors´ new circuit model for simulating the stability of a DC power supply system provides a good trade-off between accuracy and calculation time. The simulated oscillation amplitude and frequency are within 10% of those obtained from an experimental system. The calculation took only a few minutes to complete. Moreover, the threshold voltage, which corresponds to the input voltage when capacitors are added to prevent oscillation, is also within 10% of the measured value. The effect of added capacitance and damping resistance on the stability of the DC power-supply system, the size of the stability region, and the stability margin of the system are also estimated with the model

Keywords

DC-DC power convertors; capacitance; circuit oscillations; circuit stability; electric resistance; telecommunication power supplies; DC power-supply system stability; calculation time; capacitance; damping resistance; oscillation amplitude; oscillation frequency; simulation accuracy; simulation analysis; stability margin; telecommunications equipment; threshold voltage; Accuracy; Analytical models; Capacitors; Circuit simulation; Circuit stability; Frequency; Power supplies; Power system modeling; Stability analysis; Threshold voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE

Conference_Location

Anaheim, CA

Print_ISBN

0-7803-6618-2

Type

conf

DOI

10.1109/APEC.2001.912455

Filename

912455