Title :
Simulation analysis of DC power-supply system stability
Author :
Tanaka, Tom ; Serada, Takuji ; Sakai, Tatsuo
Author_Institution :
NTT Telecommun. Energy Labs., Tokyo, Japan
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;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2001. APEC 2001. Sixteenth Annual IEEE
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-6618-2
DOI :
10.1109/APEC.2001.912455
