Voltage regulation of uninterrupted power supplies

Author

Bashi, S.M. ; Jasni, J. ; Weng, O.Y.

Author_Institution

Dept. of Electr. & Electron. Eng., Universiti Putra Malaysia, Malaysia

fYear

2003

fDate

25-26 Aug. 2003

Firstpage

385

Lastpage

389

Abstract

Uninterrupted power supply (UPS) systems are used as one solution of power quality problems and to provide ultimate protection for power disturbances such as power blackouts and brownouts. Many UPS systems suffer from poor output voltage regulation especially with heavy loads. This work is aimed to design and implement the UPS hardware system capable of producing continuous and constant 230 V_ac, 50 Hz output supply. A feedback loop has been implemented using microcontroller to adjust the dc level supplying the UPS inverter. At the end of the hardware implementation, tests have been carried out to determine the reliability and effectiveness of the designed system, and good results have been obtained in improving the voltage regulation.

Keywords

feedback; invertors; microcontrollers; power supply quality; uninterruptible power supplies; voltage control; UPS; brownouts; feedback loop; inverter; microcontroller; power blackouts; power disturbances protection; power quality problems; uninterrupted power supplies; voltage regulation; Feedback loop; Hardware; Inverters; Microcontrollers; Power quality; Power supplies; Power system protection; System testing; Uninterruptible power systems; Voltage control;

fLanguage

English

Publisher

ieee

Conference_Titel

Research and Development, 2003. SCORED 2003. Proceedings. Student Conference on

Print_ISBN

0-7803-8173-4

Type

conf

DOI

10.1109/SCORED.2003.1459728

Filename

1459728