no code implementations • 10 Sep 2023 • Chenhan Xiao, Yizheng Liao, Yang Weng
The results show that we can detect and localize the outage in a timely manner with only voltage magnitudes and without assuming a prior knowledge of outage patterns.
no code implementations • 1 Apr 2021 • Yizheng Liao, Yang Weng, Chin-Woo Tan, Ram Rajagopal
The growing integration of distributed energy resources (DERs) in distribution grids raises various reliability issues due to DER's uncertain and complex behaviors.
no code implementations • 14 Nov 2018 • Yizheng Liao, Yang Weng, Chin-Woo Tan, Ram Rajagopal
This makes the theory on optimal change-point detection suitable to identify line outages via $\mu$PMUs with fast and accurate sampling.
no code implementations • 18 Sep 2018 • Yizheng Liao, Yang Weng, Guangyi Liu, Zhongyang Zhao, Chin-Woo Tan, Ram Rajagopal
Then, this paper proves that the Chow-Liu algorithm finds the topology by utilizing power flow equations and the conditional independence relationships implied by the radial multi-phase structure of distribution grids with the presence of incorrect bus phase labels.
no code implementations • 6 Nov 2016 • Yizheng Liao, Yang Weng, Guangyi Liu, Ram Rajagopal
The increasing penetration of distributed energy resources poses numerous reliability issues to the urban distribution grid.