Kaushik Naresh Kumar

Project: Modularized, Reconfigurable and Bidirectional Charging Infrastructure for Electric Vehicles with Silicon Carbide Power Electronics (MoReSiC) Responsibilities: Design of high-power,high-efficiency DC/DC converter employing SiC MOSFETs.

• OLTC (On-Load Tap Changer) transient switching study with low and high frequency model of power transformer in EMTP/ATP simulation software for HVDC application. • Time and frequency domain comparison of transient simulation results of particular transformer model with on-site measurement. • Estimation of worst-case transient recovery voltage (TRV) during OLTC switching using macro-modelling tool (MODELS) of EMTP/ATP with a statistical approach.

Topic: Fault detection and localization scheme for Modular Multi-level Converter (MMC) • Quantitative analysis of fault types using closed-form computation and numerical simulation with MATLAB/Simulink, deterministic computation of thermal stresses at involved components. • Qualitative analysis of fault types using equivalent circuits, intuitive/empirical determination of fault current paths and stressed components. • Fault detection and localization based on analysis outcomes.

Project: Laboratory scale Modular Multi-level Converter (MMC) Demonstrator • Developed a Graphical User Interface (GUI) using NI LabVIEW to operate and test MMC prototype and PXIe embedded controller. • Conducted design verification and end of line tests to validate MMC submodule PCBs and wrote test reports. • Assisted in construction and assembly of MMC laboratory-scale prototype

• General Arrangement Drawing, Schematic diagram, Protection Scheme, Earth Mat designs, Power factor correction calculations etc. for 220kV/2x25kV and 132kV/2x25kV Traction Substations. • Coordinated with Site Engineers for proper implementation of designs and with Supply Chain Management Engineers for correct assessment of equipment quantity.

• Trained in Overhead Electrification, Power Supply Installations, Signalling & Telecommunication of Indian Railways at L&T Construction’s Competency Development Centre (CDC) • Trained to prepare basic design drawings and design calculations for Traction Substations with compliance to relevant IEC, IEEE, IS and other Indian Railways Standards.

Power Electronics, Switched mode power supplies, Advanced Programming Techniques, Technical management, Control drives and E-mobility, High Voltage Engineering, Power systems Operation and Control,Smart Grids and Renewable Energy

Power Electronics, Control Systems, Power System Analysis, High Voltage Engineering, Digital Electronics, etc.