694 citations · 819 across the 31 of their papers we have counts for
12 papers · 1 filter
Topology-aware Piecewise Linearization of the AC Power Flow through Generative Modeling
Young-ho Cho, Hao Zhu
Effective power flow modeling critically affects the ability to efficiently solve large-scale grid optimization problems, especially those with topology-related decision variables.…
Dynamic Response Recovery Using Ambient Synchrophasor Data: A Synthetic Texas Interconnection Case Study
Shaohui Liu, Hao Zhu, Vassilis Kekatos
Wide-area dynamic studies are of paramount importance to ensure the stability and reliability of power grids. This paper puts forth a comprehensive framework for inferring the dyna…
Topology-aware Graph Neural Networks for Learning Feasible and Adaptive ac-OPF Solutions
Shaohui Liu, Chengyang Wu, Hao Zhu
Solving the optimal power flow (OPF) problem is a fundamental task to ensure the system efficiency and reliability in real-time electricity grid operations. We develop a new topolo…
Inferring power system dynamics from synchrophasor data using Gaussian processes
Mana Jalali, Vassilis Kekatos, Siddharth Bhela +2
Synchrophasor data provide unprecedented opportunities for inferring power system dynamics, such as estimating voltage angles, frequencies, and accelerations along with power injec…
A Dynamic Response Recovery Framework Using Ambient Synchrophasor Data
Shaohui Liu, Hao Zhu, Vassilis Kekatos
Wide-area dynamic studies are of paramount importance to ensure the stability and reliability of power grids. The rising deployment synchrophasor and other sensing technologies has…
Enhancing the Spatio-Temporal Observability of Residential Loads
Shanny Lin, Hao Zhu
Enhancing the spatio-temporal observability of residential loads is crucial for achieving secure and efficient operations in distribution systems with increasing penetration of dis…
Secure Integration of Electric Vehicles with the Power Grid
Chaitra Niddodi, Shanny Lin, Sibin Mohan +1
This paper focuses on the secure integration of distributed energy resources (DERs), especially pluggable electric vehicles (EVs), with the power grid. We consider the vehicle-to-g…
Dynamic Power Distribution System Management With a Locally Connected Communication Network
Kaiqing Zhang, Wei Shi, Hao Zhu +2
Coordinated optimization and control of distribution-level assets can enable a reliable and optimal integration of massive amount of distributed energy resources (DERs) and facilit…
Distributed Equilibrium-Learning for Power Network Voltage Control With a Locally Connected Communication Network
Kaiqing Zhang, Wei Shi, Hao Zhu +1
In current power distribution systems, one of the most challenging operation tasks is to coordinate the network- wide distributed energy resources (DERs) to maintain the stability…
PSSE Redux: Convex Relaxation, Decentralized, Robust, and Dynamic Approaches
Vassilis Kekatos, Gang Wang, Hao Zhu +1
This chapter aspires to glean some of the recent advances in power system state estimation (PSSE), though our collection is not exhaustive by any means. The Cram{é}r-Rao bound, a l…
Decentralized Dynamic Optimization for Power Network Voltage Control
Hao Jan Liu, Wei Shi, Hao Zhu
Voltage control in power distribution networks has been greatly challenged by the increasing penetration of volatile and intermittent devices. These devices can also provide limite…
Estimating the State of AC Power Systems using Semidefinite Programming
Hao Zhu, Georgios B. Giannakis
This paper has been withdrawn by the authors