A directly digital dual-loop controller design of boost converter for UPS applications

Author

Zeyun Chao ; Guobao Zhang ; Zhongjun Jiang

Author_Institution

Huazhong Univ. of Sci. & Technol., Wuhan, China

fYear

2014

fDate

Aug. 31 2014-Sept. 3 2014

Firstpage

1

Lastpage

4

Abstract

In UPS, Battery mode and electric mode usually use a common boost converter to translate different input voltage into a same DC bus voltage. In this paper, the mathematic model of the boost converter based on PWM three-terminal switch device is derived. To obtain good dynamic performance during the input voltage changes, a directly digital dual-loop controller design method based on Matlab/Simulink is proposed and the universal calculation formulae are derived. Experimental results of a 3.3 kW boost converter used in 380V UPS show that the controller has good dynamic performance.

Keywords

digital control; mathematical analysis; power convertors; uninterruptible power supplies; DC bus voltage; Matlab; PWM three-terminal switch device is; Simulink; UPS; boost converter; digital dual-loop controller design; mathematic model; power 3.3 kW; voltage 380 V; DC-DC power converters; Inductors; Pulse width modulation; Switches; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Transportation Electrification Asia-Pacific (ITEC Asia-Pacific), 2014 IEEE Conference and Expo

Conference_Location

Beijing

Print_ISBN

978-1-4799-4240-4

Type

conf

DOI

10.1109/ITEC-AP.2014.6940822

Filename

6940822