DocumentCode :
2933569
Title :
A Change-Point Detection Approach to Power Quality Monitoring in Smart Grids
Author :
He, Xingze ; Pun, Man-On ; Kuo, C. -C Jay ; Zhao, Ye
Author_Institution :
Mitsubishi Electr. Res. Labs. (MERL), Cambridge, MA, USA
fYear :
2010
fDate :
23-27 May 2010
Firstpage :
1
Lastpage :
5
Abstract :
In this work, we apply a change-point detection approach to power quality (PQ) monitoring in smart grids. Capitalizing on change-point detection theory with unknown parameters, a sequential cumulative sum (CUSUM)-based scheme is developed with an objective to provide quick and accurate detection of PQ event occurrence in real time. The proposed CUSUM-based scheme evaluates the weighted likelihood ratios by exploiting both the instantaneous and the long-term information of the power waveform. It is shown by computer simulations that the proposed CUSUM-based scheme can achieve a significant performance gain over conventional detection schemes.
Keywords :
power grids; power supply quality; change-point detection approach; power quality monitoring; power waveform; sequential cumulative sum-based scheme; smart grids; weighted likelihood ratios; Event detection; Frequency domain analysis; Helium; Monitoring; Power quality; Power systems; Signal resolution; Smart grids; Statistical distributions; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications Workshops (ICC), 2010 IEEE International Conference on
Conference_Location :
Capetown
Print_ISBN :
978-1-4244-6824-9
Type :
conf
DOI :
10.1109/ICCW.2010.5503913
Filename :
5503913
Link To Document :
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