Research

Cascaded H-Bridge Grid-tied Inverter

As renewable energy generation continues to grow steadily, the significance of multilevel inverters, particularly cascaded H-Bridge (CHB) ones, has seen a surge in recent years owing to their numerous benefits in industrial and grid-connected setups. However, the uneven distribution of power from photovoltaic modules to each phase of the inverter due to varying irradiance levels and ambient temperatures can result in asymmetric grid currents. To address this challenge, we develop several computationally efficient pulse width modulation (PWM) techniques to achieve balanced power distribution and thermal stress across each module of both symmetric and asymmetric CHB inverters.

Fault Tolerant Power Converters

Fault tolerance proves to be a crucial aspect for improving reliability of power converters. Our lab actively conducts research in fault tolerant power converters, particularly fault tolerant power converter topologies and control schemes, especially in high power isolated DC-DC converters for DC grid applications. The application of these converters in MVDC systems is also being investigated. 

Grid Forming Inverters

Research on grid-forming control is a crucial aspect of modern power systems, especially with the integration of renewable energy sources and the need for resilient and stable grid operation. Our goal is to develop new ways to manage power grids that can handle the challenges of today's world, like integrating renewable energy sources and ensuring stability during sudden changes in demand. Our approach is rooted in a deep understanding of both the traditional principles of power systems engineering and the cutting-edge advancements in artificial intelligence and control theory. By combining the best of both worlds, we aim to develop innovative solutions that address the complex challenges of modern power grids.

Solid State DC Circuit Breakers

The research work on DC circuit breakers focuses on the development of Solid State Circuit Breakers (SSCBs) for the protection of existing and emerging direct current (DC) power systems such as Electric Vehicle (EV) charging infrastructure, commercial and naval vessels, aviation power distribution, railway power systems, data centers, power converter and battery protection, Photo-Voltaic (PV) Systems and the future residential DC grid. DC-SSCBs based on thyristor (SCR) as well as Wide-Band Gap (WBG) based Gallium Nitride (GaN) and Silicon Carbide (SiC) MOSFET topologies are actively being developed in the lab. Faul

EV Chargers

The research focuses on EV battery chargers enabling rapid charging at rated or full power levels from both single-phase and three-phase main supplies. This innovative solution addresses the significant challenge of accommodating diverse EVs with varying battery voltages, necessitating the need of a universal charger to operate over an extensive range of voltage inputs as well as a wide range of battery voltages from both single-phase and three-phase AC charging, a power factor correction circuit is also mandatory which can operate in G2V as well as in V2G mode at minimal power loss. 

Grid Cyber Security

In our lab, we’re leading the charge in developing an advanced cyber security test bed tailored specifically for the complex smart grid environment. With a keen focus on enhancing security measures surrounding the Wide Area Damping Control System (WADCS) and Automatic Generation Control (AGC), we harness cutting-edge technologies like machine learning, deep learning, and dynamic state estimation techniques to detect cyber attacks with precision. Integrating industry-standard protocols such as IEEE C37.118 and IEC61850 into our OPLRT test bed, we craft a comprehensive defense strategies, ensuring the resilience of smart grids against evolving cyber threats. 

B.Tech Projects

Current B. Tech students can take up projects through one of the following modes. Please email one of the faculty members.