Design of adaptive sliding-mode controller for buck DC-DC converter with power losses

Author

Zheng, Wang ; Zhi, Qiu ; Xingdong, Zhu

Author_Institution

Dept. of Instrum. & Electr. Control, Qingdao Branch of Naval Aeronaut. Eng. Inst., Qingdao, China

fYear

2011

fDate

15-17 July 2011

Firstpage

4862

Lastpage

4865

Abstract

An adaptive sliding-mode controller for buck DC-DC converter with power losses is proposed. Constant switching frequency can be achieved with the proposed approach. The adaptive item is included to adjust the controller parameter online and eliminate the steady-state error. The adaptive scheme is based on a feedback policy that suitably modifies the corresponding power losses term in the controller equation. This adaptive term will speed up the system response. The simulation result verify the validity and feasibility of the design method proposed in this paper.

Keywords

DC-DC power convertors; adaptive control; variable structure systems; adaptive sliding-mode controller; buck DC-DC converter; constant switching frequency; controller parameter; feedback policy; power losses; steady-state error; Adaptation models; Adaptive systems; Design methodology; Instruments; Process control; Sliding mode control; Switching frequency; Adaptive Sliding-mode Control; DC-DC Buck Convert; Power losses;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5988102

Filename

5988102