8 papers
Two-Stage Homotopy Method to Incorporate Discrete Control Variables into AC-OPF
Timothy McNamara, Amritanshu Pandey, Aayushya Agarwal +1
Alternating-Current Optimal Power Flow (AC-OPF) is an optimization problem critical for planning and operating the power grid. The problem is traditionally formulated using only co…
Fast AC Steady-State Power Grid Simulation and Optimization Using Prior Knowledge
Aayushya Agarwal, Amritanshu Pandey, Larry Pileggi
Fast and accurate optimization and simulation is widely becoming a necessity for large scale transmission resiliency and planning studies such as N-1 SCOPF, batch contingency solve…
A LASSO-Inspired Approach for Localizing Power System Infeasibility
Shimiao Li, Amritanshu Pandey, Aayushya Agarwal +2
A method is proposed to identify and localize the cause of network collapse with augmented power flow analysis for a grid model with insufficient resources. Owing to heavy network…
SUGAR-R: Robust Online Restoration Platform for SCADA-Absent Grid
Amritanshu Pandey, Aayushya Agrawal, Marko Jereminov +1
Secure and fast grid restoration from a collapsed state is increasingly critical as blackouts are becoming more prevalent around the globe. Generally, the restoration of grid durin…
Implicitly Modeling Frequency Control within Power Flow
Aayushya Agarwal, Amritanshu Pandey, Marko Jereminov +1
In this paper, we extend a circuit-based, current-voltage power flow formulation to include frequency deviations and implicitly model generator primary and secondary control action…
Improving Voltage Profile of the Nigerian Power Grid
Amritanshu Pandey, Aayushya Agarwal, Marko Jereminov +3
Extreme voltages at the system nodes are one of the primary causes for total and partial collapse of the Nigerian grid. In this paper, we develop a framework to re-dispatch the vol…