Transient mitigation of DC-DC converters using an auxiliary switching circuit

Author

Shan, Zhenyu ; Tan, Siew-Chong ; Tse, Chi K.

Author_Institution

Dept. of Electron. & Inf. Eng., Hong Kong Polytech. Univ., Hong Kong, China

fYear

2011

fDate

17-22 Sept. 2011

Firstpage

1259

Lastpage

1264

Abstract

This paper presents a method of mitigating the transient overshoots of DC-DC converters operating with large load disturbances. The method involves a small auxiliary power circuit with a complementary control scheme that provides a smooth absorption and release of excess energy from and to the main DC-DC converter in the events of large load changes. This control mechanism interactively mitigates the large transient overshoots which would otherwise appear at the converter output. Since the control scheme involves an adjustable-energy-storage feature, the proposed solution is effective for any level of step-load change within a pre-specified range.

Keywords

DC-DC power convertors; energy storage; power control; switching convertors; DC-DC converter; adjustable-energy-storage feature; auxiliary switching circuit; complementary control scheme; load disturbance; small auxiliary power circuit; transient mitigation; transient overshoot mitigation; Capacitors; Control systems; Inductors; Integrated circuits; Reservoirs; Transient analysis; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Energy Conversion Congress and Exposition (ECCE), 2011 IEEE

Conference_Location

Phoenix, AZ

Print_ISBN

978-1-4577-0542-7

Type

conf

DOI

10.1109/ECCE.2011.6063921

Filename

6063921