Experience
- Postdoctoral Research Associate, Oak Ridge National Laboratory (ORNL), Knoxville, TN, USA (Aug. 2023 - present)
- Project 1: Dynamic Security Enhancement Platform of Converter Interfaced Resource Rich Power Grids Using a Power Grid and Protection Co-Model
- Developed detailed physics-based, data-driven, and hybrid models for converters (IBRs and DERs)
- Developed an optimization-based observer to enhance fault detection and isolation capabilities in converter-rich power systems
- Project 2: Integrated Multi-Fidelity Model and Co-Simulation Platform for Distribution System Transient and Dynamic Analysis-DistribuDy
- Developed deep learning-based dynamic models for three-phase inverter-based resources (IBRs)
- Integrated black-box models of power electronic IBRs and motor-driven load into the open-source power simulation tool, GridLAB-D, for dynamic studies
- Graduate III-Electrical Engineer Intern, NREL, CO, USA (May 2022- Dec. 2023)
- Work on analyzing 100% renewable penetration case in a reduced 240-bus WECC test system using PSSE
- Analyzed the voltage and frequency dynamics and N-1 contingency
- Benefit and cost analysis of the installation of grid-supportive loads for fast frequency response
- Assessed the technical potential of fast frequency response in grid-supportive end-use electronics
- Graduate Research Assistant, SDSU, USA (Aug. 2019 - Aug. 2023)
- Designed a data-driven partitioned modeling approach and developed a comprehensive simulation framework to reduce computational complexity and simulation time for converter-dominated power systems
- Developed and examined low-level probing signals using a real-time digital simulator-driven power amplifier to perturb power electronic converters for model parameter estimation
- Formulated a system identification algorithm using the least square method in both Python and MATLAB to model the dynamics of a power electronic converter with advanced grid support functionality
- Reviewed methods to accelerate electromagnetic transient simulation of power systems
- Compared the impact of different PLLs on data-driven modeling of grid-connected single-phase inverters
- Developed and analyzed reduced-ordered model aggregation approach with high DERs and loads and compared with composite load model with DER_A
- Microgrid Laboratory, SDSU, USA (Aug. 2019 - Aug. 2023)
- Applied data-driven modeling of grid-connected SMA inverters using a Puissance Plus power amplifier unit and Opal-RT real-time simulator system
- Evaluated grid support functions in Fronius Symo inverter using a hardware-in-the-loop testbed
- Intern Electrical Engineer, Nepal Electricity Authority (NEA), Nepal (Oct. 2018 - Apr. 2019)
- Assisted distribution system fault analysis for residential and industrial regions