A Change-Point Detection Approach to Power Quality Monitoring in Smart Grids
| Citation: |
He, X.; Pun, M-O.; Kuo, C-C. J.; Zhao, Y., "A Change-Point Detection Approach to Power Quality Monitoring in Smart Grids", IEEE International Conference on Communications Workshops (ICC), DOI: 10.1109/ICCW.2010.5503913, pp. 1-5, May 2010 (IEEE Xplore) |
| MERL Report: | TR2010-054 |
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.
