Title :
Voltage sag performance of a distribution system and its improvement
Author :
Naidu, S.R. ; De Andrade, Gilvan V. ; Costa, Edson G da
Author_Institution :
Fed. Univ. of Campina Grande, Campina Grande, Brazil
Abstract :
The voltage sag performance of a distribution system has been investigated. A Monte Carlo procedure has been used to construct the sag density table and estimate the number of unacceptable sags per annum at a sensitive load bus. The sub-transmission lines and distribution feeders that largely contribute to the unacceptable sags have been identified. It has been shown that proper protective relay coordination and adequate maintenance of the critical lines and feeders result in significant improvement of the voltage sag performance of the distribution system.
Keywords :
Monte Carlo methods; electrical maintenance; power distribution protection; power supply quality; relay protection; Monte Carlo procedure; distribution feeders; distribution system; maintenance engineering; protective relay coordination; sag density table; sag number estimation; subtransmission lines; voltage sag performance; Open systems; Reliability; Voltage fluctuations; Voltage measurement; Monte Carlo method; power quality; voltage sags;
Conference_Titel :
Industry Applications Society Annual Meeting (IAS), 2011 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-9498-9
DOI :
10.1109/IAS.2011.6074409
