5 papers
Steady-State Equivalent Circuit Model for Data Center Loads
Muhammad Hamza Ali, Peng Sang, Hyeon Woo +3
Planners currently represent data centers as aggregate constant-PQ or ZIP loads in steady-state interconnection and contingency studies. These aggregate models are computationally…
Analysis of Circuit-based Per-Panel Diode Model of Photovoltaic Array
Peng Sang, Santhosh Balasubramanian, Amritanshu Pandey
Solar photovoltaic systems are increasing in size and number on the grid. In regions with high penetration, such as California, PV systems serve multiple functions, including peak…
PowerChain: A Verifiable Agentic AI System for Automating Distribution Grid Analyses
Emmanuel O. Badmus, Peng Sang, Dimitrios Stamoulis +1
Rapid electrification and decarbonization are increasing the complexity of distribution grid (DG) operation and planning, necessitating advanced computational analyses to ensure re…
Circuit-Theoretic Joint Parameter-State Estimation of Utility-Scale Photovoltaic, Battery, and Grid Systems
Peng Sang, Amritanshu Pandey
Solar PV and battery storage systems have become integral to modern power grids. Therefore, bulk grid models in real-time operation must include their physical behavior accurately…
Circuit-theoretic Joint Parameter-State Estimation -- Balancing Optimality and AC Feasibility
Peng Sang, Amritanshu Pandey
AC State Estimation (ACSE) is widely recognized as a practical approach for determining the grid states in steady-state conditions. It serves as a fundamental analysis to ensure gr…