Work Experience

Lead Engineer HVDC Studies, GE Grid Solutions, Dresden, Germany.

• • Duration: Aug. 2023 - Present

  • Projects Working:

    • Eastern Green Link-1: 2-GW ±525 kV Point to Point Bipole VSC HVDC Project in Scotland to England:

      • Preparation of sequencing system strategy (start-up & shutdown sequences, operating configurations, switchgear interlocks & transition between operating modes) for VSC Bipole HVDC scheme.

Project Engineer Network Studies, Siemens Energy (External), Erlangen, Germany.

• • Duration: Sep. 2022 - Jul. 2023 (11 Months)

  • Projects Involved:

    • East Anglia 3: Feasibility study of 1.4 GW Monopole VSC HVDC Project (Offshore-Onshore):

      • Modeling & tuning of offshore wind farms & VSC-HVDC systems.

      • Verification of grid forming converters capability based on GB Grid code GC-137 by performing AC Voltage, phase angle and frequency dynamics, AC network faults & islanding studies.

    • Harmonic Impedance study of electrolyzer converter:

      • Positive & negative sequence harmonic impedance of PEM electrolyzer converter are measured for the frequency ranges from 50 Hz to 2500 Hz considering different operating scenarios.

    • Dynamic performance study of 1000 MW, 500 kV HVDC Bipole LCC Project in Inga-Kolwezi LCC-HVDC link, Congo:

      • Modeling & parametrizing bipolar LCC-HVDC link for both Siemens & ABB controls.

      • Verification of the load flow & dynamic performance of LCC-HVDC link.

  • Tools: PSCAD/EMTDC, MATLAB/Simulink, DIgSILENT PowerFactory

Principal Engineer, KNR Engineers & Consultants (JEF Group Company), Chennai, India.

• • Duration: Jan. 2022 - Aug. 2022 (8 Months)

  • Projects Involved:

    • Performed Insulation coordination studies for 132 kV, 230 kV and 400 kV GIS & AIS substations & transmission lines.

    • Performed Transformer energization, capacitor banks, line/cable switching studies.

    • Grid study: Load flow, dynamic, short circuit, transient, harmonic & relay coordination studies for HV/MV/LV grids with renewables interconnection.

  • Tools: PSCAD/EMTDC, MATLAB/Simulink, EMTP-RV.

Senior Postdoc Researcher, FER, University of Zagreb, Croatia.

• • Duration: Jan. 2021 - Dec. 2021 (1 Year)

  • Projects Worked:

    • Electric vehicle transportation for truck delivery in Zagreb city - GDi.

    • Research work on Microgrid Controls: Centralized, decentralized, communication based, model predictive & adaptive droop control techniques. 

  • Tools: MATLAB/Simulink, Python.

Senior Research Specialist, Rensselaer Polytechnic Institute, Troy, New York, United States.

• • Duration: Jan. 2020 - Dec. 2020 (1 Year)

  • Projects Worked:

    • Active Methods of Estimating Grid Resistance & Reactance – EPRI.

    • Asynchronous Re-closing Impact Study in New York Distribution Systems – NYSERDA.

    • Negative Sequence Voltage Protection Scheme for Ground Fault Over-voltage – NYSERDA.

  • Tools: MATLAB/Simulink, Opal-RT hardware-in-loop simulation, PSCAD/EMTDC.

PhD Researcher, Electrical Power Engineering, NITK Surathkal, Mangalore, India.

• • • Duration: July 2014 – August 2019 (5 Years 2 Months)

    • Major Tasks of PhD Project:

      • Design, modeling, & control of VSC-based HVDC grids interconnecting offshore wind farms (PMSG based wind turbine models).

      • Steady state, dynamic, short circuit, transient behavioral simulations & harmonic studies of VSC-HVDC grid connected offshore wind farms.

      • Development of a protection scheme for DC line faults in VSC-HVDC grids.

      • Simulation studies on protection of AC grids/transmission lines with the impact of VSC-HVDC links.

    • Teaching Assistant - Major Course: 

      • Computer Aided Protection of Power Systems

    • Tools: PSCAD/EMTDC, MATLAB/Simulink, RET-615 and REF-615 relays.

Assistant Professor, Electrical and Electronics, Christian College of Engineering and Technology, Dindigul, India. 

• • •  Duration: June 2012 – May 2014 (2 Years)

    •  Major Courses:             

      • Electric Circuit Theory

      • Electromagnetic Theory

      • Flexible AC Transmission Systems (FACTS)

      • High Voltage Direct Current (HVDC) Transmission

    • Tools: MATLAB/Simulink.