Vietnamese 500kV power system and recent blackouts

Author

Dinh, Viet Thanh ; Le, Hung Huu

Author_Institution

Sch. of Electr. Eng. & Comput. Sci., Washington State Univ., Pullman, WA

fYear

2008

fDate

20-24 July 2008

Firstpage

1

Lastpage

5

Abstract

This paper describes an overview of the Vietnamese power system and some recent blackouts. One specific blackout happened on May 17, 2005 and caused interruption in power supply to North and Central Vietnam with a total of 1074 MW lost from the 500 kV interconnected system. It required 108 minutes from beginning of the incident to full restoration of the system. The sequence of events in this blackout is described in detail. The root cause of the blackout was the bypassing of two series capacitors in two different 500 kV lines while heavily loaded. This blackout and some other blackouts in the Vietnamese 500 kV power system were related to the reliability of series capacitors, power swing phenomena and overvoltage.

Keywords

fault diagnosis; overvoltage; power capacitors; power system restoration; Vietnamese power system; power supply interruption; power swing phenomena; system overvoltage; system restoration; two series capacitors; Personnel; Power capacitors; Power generation; Power system interconnection; Power system reliability; Power system restoration; Power systems; Power transmission lines; Substations; Voltage control; Blackout; overvoltage; power swing; series capacitor;

fLanguage

English

Publisher

ieee

Conference_Titel

Power and Energy Society General Meeting - Conversion and Delivery of Electrical Energy in the 21st Century, 2008 IEEE

Conference_Location

Pittsburgh, PA

ISSN

1932-5517

Print_ISBN

978-1-4244-1905-0

Electronic_ISBN

1932-5517

Type

conf

DOI

10.1109/PES.2008.4596334

Filename

4596334