In recent times, renewable generation, storage devices and electric vehicles with power electronic interfaces continue to be rapidly integrated into various power systems. Control of such power electronic interfaces in possibly modular or adhoc architectures in a robust and efficient manner is a significant problem that we need to address to progress towards energy systems of the future. To this end, I will present my graduate work that develops theoretical tools and hardware prototypes for decentralized controllers for power electronic converters for two cases - i) Network of H-bridge inverters for AC microgrids, and ii) Parallel Network of Buck converters for DC microgrids (and other applications). The control strategy in both the cases derives from the rich dynamical behavior of coupled oscillators. I will showcase some analytical stability proofs along with experimental results for them and conclude by highlighting a few compelling directions for future work that continue to explore such oscillator-based controllers.
Mohit Sinha is a Ph.D. student at University of Minnesota Twin Cities, where he is advised by Sairaj Dhople. His research interests include power electronics & power systems, control theory and optimization algorithms. His PhD work focuses on developing nonlinear controllers for power electronic converters. His work is supported by a Electrical Engineering Departmental Fellowship and National Science Foundation.