3 papers
eess.SY2025
Inverter Output Impedance Estimation in Power Networks: A Variable Direction Forgetting Recursive-Least-Square Algorithm Based Approach
Jaesang Park, Alireza Askarian, Srinivasa Salapaka
As inverter-based loads and energy sources become increasingly prevalent, accurate estimation of line impedance between inverters and the grid is essential for optimizing performan…
cs.DS2025
Orthogonal Nonnegative Matrix Factorization with Sparsity Constraints
Salar Basiri, Alisina Bayati, Srinivasa Salapaka
This article presents a novel approach to solving the sparsity-constrained Orthogonal Nonnegative Matrix Factorization (SCONMF) problem, which requires decomposing a non-negative d…
eess.SY2024
Multi-Mode Inverters: A Unified Control Design for Grid-Forming, Grid-Following, and Beyond
Alireza Askarian, Jaesang Park, Srinivasa Salapaka
We present a novel, integrated control framework designed to achieve seamless transitions among a spectrum of inverter operation modes. The operation spectrum includes grid-forming…