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B.Sc(Hons) in electrical and electronic engineering. Dulmini Karunathilake received her B.Sc. degree in electrical and electronic engineering (1st Class Hons.) from the University of Peradeniya, Sri Lanka, in 2015. She has 3-years of industrial experience in electrical and telecommunication industries in Sri Lanka. Currently she is a Ph.D. Research student at School of Electrical Engineering & Robotics, QUT. Her areas of interest are Lithium ion battery modelling, Battery Management Systems and Health conscious optimal control of batteries.
Principal Supervisor: Prof Mahinda Vilathgamuwa
Associate Supervisor: A/Prof Paul Corry Prof Troy Farrell A/Prof Yateendra Mishra
PhD Overview
Battery Energy Storage Systems (BESS) can be used as a carbon-free source which integrates the highly intermittent renewable energy sources such as wind and solar to the power system and to utilize the generated assets effectively. Lithium-ion batteries are ideal for use in these BESS for the integration of renewables as they can cope effectively with short-term and long-term variabilities of solar and wind resources among many other advantages.
A degradation-conscious physics-based Equivalent Circuit Model (ECM) is used as the fundamental block which models the internal physics of the Lithium-ion cell mathematically while ensuring less computational effort and easy implementation using passive elements. An Advanced Battery Management System is to be developed which performs cell parameter identification, individual control and monitoring of cells using modular multilevel series-parallel configuration. Further, to achieve a health-conscious optimal control that increases energy transfer efficiency, utilization of battery capacity, battery lifetime while minimizing battery degradation and computational cost for a BESS.
