The control of switching DC-DC converters-a general LWR problem

Author

Leung, Frank H F ; Tam, Peter K S ; Li, C.K.

Author_Institution

Dept. of Electron. Eng., Hong Kong Polytech., Hong Kong

Volume

38

Issue

1

fYear

1991

fDate

2/1/1991 12:00:00 AM

Firstpage

65

Lastpage

71

Abstract

The control of switching DC-DC converters is reviewed. It is regarded as a general linear quadratic regulator (LQR) problem, and an innovative optimal and robust digital controller is proposed. The control strategy adopted can achieve good regulation, rejection of modest disturbances, and the ability to cater to switching converters with RHP zeros. This controller design is a general approach that is applicable to all PWM-type DC-DC converters with their circuit topologies known or unknown. Modern CAD techniques are used to reach the final control law. Application to a published Cuk converter is used as an example, and the performance is evaluated

Keywords

digital control; optimal control; power convertors; pulse width modulation; CAD techniques; Cuk converter; PWM; RHP zeros; circuit topologies; control; linear quadratic regulator; optimal control; robust digital controller; switching DC-DC converters; Circuit topology; DC-DC power converters; Design automation; Digital control; Optimal control; Pulse width modulation; Pulse width modulation converters; Regulators; Robust control; Switching converters;

fLanguage

English

Journal_Title

Industrial Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0278-0046

Type

jour

DOI

10.1109/41.103487

Filename

103487