Ing. Subhash Naliyapara

Thesis Topic- Evaluation of alternative PWM Method to optimize control methodology of Inverter Power stage. Keywords: High Voltage Traction Inverter, Simulation, Space vector PWM, Generalized discontinuous PWM, Loss estimation, Thermal simulation, Torque ripple and DC ripple analysis.

Analysis of loss estimation of high voltage inverter power stage (SiC MOSFET) through double pulse test. Simulation of double pulse test in LT spice software. Keywords: Double Pulse test simulation of SiC MOSFET, Loss estimation, Gate path design, Stray inductance and loop inductance analysis, Decoupling capacitor and RC snubber, dv/dt and di/dt effect on MOSFET. Skills: MATLAB-Simulink, LT Spice, PLECS, Analytic Skills, Problem Solving.

Experience in low voltage variable frequency inverter panel design, railway battery charger and traction inverter, Industrial dip (i-Dip) for voltage sag correction device, Ultramotive power supply (VFD+Battery+ Battery charger) panel design, Testing, Project management. Skills: Electrical & Control Panel Design, E-Plan, Microsoft Dynamics NAV (ERP), Microsoft office, BOMs, BOQs, AutoCAD, Testing, Customer inspection.

Study content: Construction, simulation and Modeling of Various types of converters, Electric machines and Physical systems in MATLAB/Simulink, Vehicle Management Systems, and Control of drives. Advanced Power electronics, Method of Power Engineering, Control Theory, Modeling of Physical systems, Renewable energy, Hydrogen technology, Electrolyzer, Fuel cells, Sustainable non-fossil Mobility, and Energy Management.

Thesis Topic: Proposed H-bridge with reduced number of switches topology for Multilevel Inverter. Keywords: Multilevel Inverter, Cascaded H-bridge topology, less power MOSFET for 7- level Inverter compared to conventional multilevel Inverter