Transient analysis of a unified power flow controller and its application to design of the DC-link capacitor

Author

Fujita, Hideaki ; Watanabe, Yasuhiro ; Akagi, Hirofumi

Author_Institution

Dept. of Electr. Eng., Okayama Univ., Japan

Volume

16

Issue

5

fYear

2001

fDate

9/1/2001 12:00:00 AM

Firstpage

735

Lastpage

740

Abstract

This paper presents a transient analysis of a unified power flow controller (UPFC), and design of capacitance of the DC-link capacitor. Active power flowing out of the series device in transient states is theoretically discussed to derive what amount of electric energy the DC link capacitor absorbs or releases through the series device. As a result, it is clarified that the active power flowing out of the series device is stored in the line inductance as magnetic energy during transient states. Design of capacitance of the DC-link capacitor is also presented in this paper, based on the theoretical analysis. Experimental results obtained from a 10-kVA laboratory setup are shown to verify the analytical results

Keywords

capacitance; control system analysis; load flow control; power capacitors; power system control; transient analysis; 10 kVA; DC-link capacitor; active power flow; control simulation; line inductance; magnetic energy; transient states; unified power flow controller transient analysis; Capacitance; Capacitors; Inductance; Laboratories; Load flow; Magnetic analysis; Power system transients; Power transmission lines; Transient analysis; Voltage control;

fLanguage

English

Journal_Title

Power Electronics, IEEE Transactions on

Publisher

ieee

ISSN

0885-8993

Type

jour

DOI

10.1109/63.949506

Filename

949506