62 citations · 237 across the 31 of their papers we have counts for
11 papers · 1 filter
Dynamic Dimensioning of Frequency Containment Reserves: The Case of the Nordic Grid
Jöbke Janssen, Alessandro Zocca, Bert Zwart +1
One of the main responsibilities of a Transmission System Operator (TSO) operating an electric grid is to maintain a designated frequency (e.g., 50 Hz in Europe). To achieve this,…
Uncovering Load-Altering Attacks Against N-1 Secure Power Grids: A Rare-Event Sampling Approach
Maldon Patrice Goodridge, Subhash Lakshminarayana, Alessandro Zocca
Load-altering attacks targetting a large number of IoT-based high-wattage devices (e.g., smart electric vehicle charging stations) can lead to serious disruptions of power grid ope…
Interface Networks for Failure Localization in Power Systems
Chen Liang, Alessandro Zocca, Steven H. Low +1
Transmission power systems usually consist of interconnected sub-grids that are operated relatively independently. When a failure happens, it is desirable to localize its impact wi…
Line Failure Localization of Power Networks Part II: Cut Set Outages
Linqi Guo, Chen Liang, Alessandro Zocca +2
Transmission line failure in power systems prop-agate non-locally, making the control of the resulting outages extremely difficult. In Part II of this paper, we continue the study…
Adaptive Network Response to Line Failures in Power Systems
Chen Liang, Linqi Guo, Alessandro Zocca +2
Transmission line failures in power systems propagate and cascade non-locally. In this work, we propose an adaptive control strategy that offers strong guarantees in both the mitig…
Line Failure Localization of Power Networks Part I: Non-cut Outages
Linqi Guo, Chen Liang, Alessandro Zocca +2
Transmission line failures in power systems propagate non-locally, making the control of the resulting outages extremely difficult. In this work, we establish a mathematical theory…
An Integrated Approach for Failure Mitigation & Localization in Power Systems
Chen Liang, Linqi Guo, Alessandro Zocca +3
The transmission grid is often comprised of several control areas that are connected by multiple tie lines in a mesh structure for reliability. It is also well-known that line fail…
Less is More: Real-time Failure Localization in Power Systems
Linqi Guo, Chen Liang, Alessandro Zocca +2
Cascading failures in power systems exhibit non-local propagation patterns which make the analysis and mitigation of failures difficult. In this work, we propose a distributed cont…
Frequency violations from random disturbances: an MCMC approach
John Moriarty, Jure Vogrinc, Alessandro Zocca
The frequency stability of power systems is increasingly challenged by various types of disturbances. In particular, the increasing penetration of renewable energy sources is incre…
Failure Localization in Power Systems via Tree Partitions
Linqi Guo, Chen Liang, Alessandro Zocca +2
Cascading failures in power systems propagate non-locally, making the control and mitigation of outages extremely hard. In this work, we use the emerging concept of the tree partit…
Line failure probability bounds for power grids
Tommaso Nesti, Alessandro Zocca, Bert Zwart
We develop upper bounds for line failure probabilities in power grids, under the DC approximation and assuming Gaussian noise for the power injections. Our upper bounds are explici…