[1] Intern at National Renewal Energy Laboratory (NREL), USA
▷ Timeline: March 2023-Sept 2023
▷ Responsibility
worked in the project “Rapidly Viable and Sustained Grid”, funded by Advanced Research Projects Agency Energy (ARPA-E), led by NREL, supervised by Richard Bryce (NREL).
[1] Demonstrated large scale power hardware-in-the-loop-based experiments on a in-laboratory-made 1.25MVA microgrid system (with 4
grid-forming, 4 grid-following inverters, 1 diesel gen-sets, 4 controllable load banks).
[2] Demonstrated parallel operation of multiple PHIL interface controllers (1st time in the world) while interfacing 8 commercial
125kVA, 480V 3-phase Inverters, 1 commercial 150kW, 480V, 3-phase Diesel gen-set, 4 controllable load banks each 250kVA in
“Energy Systems Integration Facility” (ESIF) at NREL.
worked in the project “AI-Based Microgrid Protection”, funded by Laboratory Directed Research and Development (LDRD) Program, led by NREL supervised by Dr. Jing Wang (NREL), Dr. Ahmed Zamzam (part NREL, now in Ascend Analytics ), Dr. Yue Chen (NREL).
[1] Developed patten recognition and artificial intelligence-based adaptive protection schemes to cope with the variability and
uncertainty of the fault responses of inverters in microgrids and weak faults in islanded mode.
[2] Developed a Support Vector Machine (SVM)-based learner for detecting and localizing the faults in a microgrid.
[3] Developed and MATLAB + Python developer -based SVM classifier for relay logic and tested on Banshee Distribution System.
[2] Visiting Scholar at National Renewal Energy Laboratory (NREL), USA
▷ Timeline: March 2022
▷ Responsibility
worked in the project “Rapidly Viable and Sustained Grid”, funded by Advanced Research Projects Agency Energy (ARPA-E), led by NREL supervised by Dr. Govind Saraswat (past NREL, now at Enphase).
[1] Developed an at-power prototype of 3-phase, 480V, 700kW microgrid based on University of Minnesota Fairview Medical Center.
[2] Designed and controlled 2 commercial 125kVA, 480V 3-phase Inverters with grid-forming, and 2 grid-following inverters, 2
80kVA, 480V, 3-phase diesel gen-sets, 4 load banks each 250kVA rated.
[3] Demonstrated large scale power hardware-in-the-loop (PHIL) -based experiment on 700kW system of the prototype hardware
interfaced with OP5700-based real-time simulator to validate seamless transition capability, black start operation along with
smart and optimal net-load management control.
[3] Intern at National Renewal Energy Laboratory (NREL), USA
▷ Timeline: May 2021 - July 2021
▷ Responsibility
worked with Dr. Govind Saraswat (now at Enphase), Dr. Jing Wang (NREL) in the project “Rapidly Viable and Sustained Grid”, funded by Advanced Research Projects Agency Energy (ARPA-E), led by NREL.
[1] Demonstrated large scale controller hardware-in-the-loop (CHIL) -based experiments on emulated microgrid system (with 16 grid
forming, 8 grid-following inverters, 2 diesel gen-sets, 178 controllable loads) emulated using OP5700-based real-time
simulator along with multiple micro-controllers for grid-forming and grid-following inverter controllers.
[2] Configured, tested, installed, and operate multiple commercial 125kVA, 480V 3-phase Dynapower MPS Inverters in “Energy Systems
Integration Facility” (ESIF) at NREL.
[3] Modified the controllers of multiple commercial 125kVA, 480V 3-phase Dynapower MPS Inverters for superior seamless transition
capability.
[4] Intern at TATA Steel, Jamshedpur, India
▷ Timeline: May 2012 - July 2012
▷ Responsibility
worked in the project “Central Sinter Dispatch From RMLC3”, supervised by Mr. Ravi Kumar, Head, IEM, Sinter Plant.
[1] Developed a generic HMI system for centralized dispatch control for Sinter Plant#2, #3, and #4, Blast Furnace Center I, G, and
H at the Jamshedpur Plant of TATA Steel.
[2] worked on the installation of programmable logic controllers (PLCs) manufactured by SIEMENS and ABB along with logic design
using ladder diagram using STEP7 and Compact HMI 800 soft-wares.
[3] worked on installation of DP/DP coupler (SIMATIC 6ES7-158-OAD01-OXAO) at RMLC#3A to interconnect the PROFIBUS DP1 (controlled
over RMLC#3A) and PROFIBUS DP 2 (controlled over SP#4).