6 papers
Criteria-Aware EMT-Based Short-Term Voltage Performance Index for Dynamic Assessment of Inverter-Dominated Power Systems
Mohammad Almomani, Venkataramana Ajjarapu
The increasing penetration of inverter-based resources (IBRs) into bulk power systems has fundamentally altered short-term voltage dynamics following disturbances. Conventional sho…
TSO-DSO Coordinated Reactive Power Dispatch for Smart Inverters with Multiple Control Modes Real-Time Implementation
Mohammad Almomani, Ahmed Alkhonain, Venkataramana Ajjarapu
This paper presents TSO-DSO coordinated reactive power dispatch, with a focus on real-time implementation. A sensitivity-aware, mixed-integer linear programming (MILP) formulation…
Trajectory-Based Nonlinear Indices for Real-Time Monitoring and Quantification of Short-Term Voltage Stability
Mohammad Almomani, Muhammad Sarwar, Venkataramana Ajjarapu
Existing short term voltage stability (STVS) methods typically address either voltage oscillations or delayed voltage recovery; however, the coexistence of both phenomena has not b…
Enhanced Entropy-Based Metric for Characterization of Delayed Voltage Recovery
Mohammad Almomani, Muhammad Sarwar, Venkataramana Ajjarapu
Ensuring accurate violation detection in power systems is paramount for operational reliability. This paper introduces an enhanced voltage recovery violation index (EVRVI), a compr…
Novel Data-Driven Indices for Early Detection and Quantification of Short-Term Voltage Instability from Voltage Trajectories
Mohammad Almomani, Muhammad Sarwar, Venkataramana Ajjarapu
This paper presents a novel Short-Term Voltage Stability Index (STVSI), which leverages Lyapunov Exponent-based detection to assess and quantify short-term stability triggered by O…
Extended Sensitivity-Aware Reactive Power Dispatch Algorithm for Smart Inverters with Multiple Control Modes
Mohammad Almomani, Ahmed Alkhonain, Venkataramana Ajjarapu
The increasing integration of Distributed Energy Resources (DERs) in distribution networks presents new challenges for voltage regulation and reactive power support. This paper ext…