A comparative assessment of power swing detection techniques

Author

Nayak, P.K. ; Rao, J. Ganeswara ; Kundu, P. ; Pradhan, A.K. ; Bajpai, P.

Author_Institution

Dept. of Electr. Eng., IIT Kharagpur, Kharagpur, India

fYear

2010

fDate

20-23 Dec. 2010

Firstpage

1

Lastpage

4

Abstract

Distance relays, which respond to changes in impedance, may mal-operate due to power swings. For maintaining security, power swing blocking (PSB) function is utilized in modern distance relays to avoid unintended operation during power swing. However, if fault occurs during power swing, distance relays must operate. This paper reviews the shortcomings in the existing power swing detection techniques of distance relays. The concentric impedance characteristics scheme, the Vcosφ, the decreased resistance and the superimposed current methods are the conventional techniques for power swing detection for which a comparative assessment is carried out.

Keywords

power engineering computing; power generation faults; power system protection; power system relaying; concentric impedance; distance relays; mal-operate; power swing blocking function; power swing detection; power swing fault; superimposed current methods; Discrete wavelet transforms; Relays; Resistance; Distance protection; power swing; single-phase fault; symmetrical fault;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Electronics, Drives and Energy Systems (PEDES) & 2010 Power India, 2010 Joint International Conference on

Conference_Location

New Delhi

Print_ISBN

978-1-4244-7782-1

Type

conf

DOI

10.1109/PEDES.2010.5712568

Filename

5712568