Dr. Srinivas Bhaskar Karanki

Biography

Educational Qualification: Postdoctoral Fellow Ryerson University, Toronto 2012-Present PhD* Indian Institute of Technology Madras 2007-2012 CPI: 8.97/10 (Power Electronics Application in Power Systems) Bachelor of Technology Bapatla Engineering College, Bapatla 2003-2007 Agg: 87.2% (Electrical and Electronics Engineering) (* Joined as Master of Science Scholar through Gate Rank and converted to PhD. Awarded direct PhD. CPI = Cumulative Performance Index, Agg = Aggregate) Postdoctoral Experience: Project Topic System Integration of Large Scale Energy Storage Systems Using Lithium Batteries Supervisors Dr. David Xu University Ryerson University, Toronto, Canada • This Project examines the feasibility of integrating large-scale battery energy storage systems in the Toronto distribution network. The battery system with high efficiency power converters will be studied to provide reliable and uninterrupted energy supply, to smooth skewed consumption pattern (more in day and less in night); and to defer the upgrading cost of consumer appetite for energy in urban areas. The objectives have been formulated with industry partners Hydro One and the systems are studied based on practical data provided by Hydro One. • The intended deliverables will be to develop high efficient modular converter systems for the battery management system and to develop algorithms for optimal placement and sizing of the battery management system. The proposed algorithm for optimal sizing and placement has been verified with real time data and the deployment of the algorithm to the actual system is under process. Furthermore, an experimental setup for modular converter system is currently being developed at Ryerson University to verify our proposed algorithms. Doctoral Experience: PhD Thesis Topic Topologies and Design of State Feedback Controller for Custom Power Devices in Power Distribution System Supervisors Prof. Mahesh Kumar and Dr. Kalyan Kumar University Indian Institute of Technology Madras, Chennai, India Description • The thesis aims to design a robust feedback controller for UPQC under parametric variations. The thesis also examined various converter topologies to operate the custom power devices at a reduced DC link voltage without compromising the compensation capabilities of the device. Particle swarm optimization (PSO) based state feedback controller is proposed to improve the performance of the UPQC under parametric variations. The study was performed using simulations in MATLAB and validated with experimental studies. • A hybrid shunt active filter topology has been proposed with a reduced DC-link voltage rating. This topology has been extended to the UPQC applications. A modified UPQC topology has been proposed, which has the capability to retain the performance of the conventional topologies with a single DC-link capacitor. The study was performed using simulation software PSCAD 4.2.1. A DSP based prototype of the three-phase UPQC has been developed in the laboratory and the proposed concepts are validated with experimental studies.

Research Interest

Power quality, Energy storage, DC-DC Converters for renewable energy sources, and power electronics applications in power systems.