Improving Power Converter Utilization through Large-signal Controllers

Dr Zurbriggen Presentation
Monday, July 5, 2021
13:30 EST
Zoom Meeting


Dr. Ignacio Galiano Zurbriggen is a postdoctoral fellow at the Electrical and Computer Engineering department of the University of British Columbia. He works at the UBC Power Electronics laboratory with Dr. Martin Ordonez and his research team. His research interests include the study of linear, nonlinear, and hybrid modelling and control methods for power electronics converters with applications in renewable energy systems, electric vehicles, battery chargers, and microgrids. He received his M.A.Sc. and Ph.D. degrees in Electrical and Computer Engineering at the University of British Columbia in 2013 and 2020 respectively. His work in power electronics includes 2 years of industrial experience, and involvement in 5 industry-academia partnership projects.



Switch-mode power converters are a fundamental component of modern power systems; they are ubiquitous in renewable energy applications, electric vehicles, and battery chargers. Closed-loop controllers are essential to guarantee a consistent behaviour of power converters under all operating conditions, and they become a decisive component when defining the converters’ performance. Simple to implement small-signal controllers have been the preferred choice by the power electronics industry for decades. However, due to the performance limitations and the conservative design choices that small-signal controllers require, the converters’ capabilities usually result heavily underutilized.
In this seminar, Dr. Ignacio Galiano Zurbriggen will introduce some of the alternative large-signal control methods he has developed for fundamental converters, and he will share his vision on how their underlying principles can be extended to more complex systems. In this way, the utilization of power conversion hardware can be largely enhanced by incorporating higher performance controllers that maintain the simple implementation required by modern industrial applications.


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