Blar i NTNU Open på forfatter "Vatani, Mohsen"
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Advanced Control Methods for Power Converters: Focusing on Modular Multilevel Converters
Vatani, Mohsen (Doctoral thesis at NTNU;2016:40, Doctoral thesis, 2016)Development of powerful processors along with the complex structure of modern multilevel converters necessitate the utilization of advanced control methods for power converters. This necessity speciffcally arises in the ... -
Control Design and Analysis for Discrete Time Bilinear Systems using Sum of Squares Methods
Vatani, Mohsen; Hovd, Morten; Olaru, Sorin (Journal article; Peer reviewed, 2014)In this paper, stabilization of discrete time bilinear systems is investigated by using Sum of Squares (SOS) programming methods and a quadratic Lyapunov function. Starting from the fact that global asymptotic stability ... -
Control design for discrete-time bilinear systems using the scalarized Schur complement
Vatani, Mohsen; Hovd, Morten; Olaru, S (Journal article; Peer reviewed, 2017)In this paper, controller design for discrete-time bilinear systems is investigated by using sum of squares programming methods and quadratic Lyapunov functions. The class of rational polynomial controllers is considered, ... -
Indirect Finite Control Set Model Predictive Control of Modular Multilevel Converters
Vatani, Mohsen; Behrooz, Bahrani; Saeedifard, Maryam; Hovd, Morten (Journal article; Peer reviewed, 2015)The modular multilevel converter (MMC) is a potential candidate for medium/high-power applications, specifically for high-voltage direct current transmission systems. One of the main challenges in the control of an MMC ... -
Lyapunov-based Proportional-Integral Controller Design with Guaranteed Region of Convergence for dc-dc Power Converters
Vatani, Mohsen; Hovd, Morten (Chapter, 2017)In this paper, Lyapunov stability of dc-dc power converters controlled with proportional-integral (PI) controllers is investigated. The class of dc-dc converters with discrete-time bilinear averaged dynamic model is ...