Quick Line Outage Identification in Urban Distribution Grids via Smart Meters

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.

Change Point Detection Time Series +1

Activity Detection And Modeling Using Smart Meter Data: Concept And Case Studies

no code implementations • 26 Oct 2020 • Hao Wang, Gonzague Henri, Chin-Woo Tan, Ram Rajagopal

Electricity consumed by residential consumers counts for a significant part of global electricity consumption and utility companies can collect high-resolution load data thanks to the widely deployed advanced metering infrastructure.

Action Detection Activity Detection

Fast Distribution Grid Line Outage Identification with $μ$PMU

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.

Change Point Detection Time Series +1

Unbalanced Multi-Phase Distribution Grid Topology Estimation and Bus Phase Identification

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.