The Modular Multilevel Converter represents a really promising solution for several high-power applications. Nevertheless, to furtherly enhance the penetration of such conversion structure and to fully exploit its advantages, some issues related to its operation need to be addressed. In particular, this converter features some circulating currents that deeply affect both the conduction losses occurring in the semiconductor devices and the voltage ripple across the capacitors of this conversion structure, which in turn influences the converter efficiency. In order to minimize the converter losses, this work proposes innovative control strategies of the circulating currents by calculating the optimal value of their reference. Alongside the increase of the converter efficiency, the proposed control strategies allow additional advantages in terms of enhancing the converter reliability and extending the overall system lifetime.
Control Strategies for Losses Optimization in Modular Multilevel Converter / Camurça, Luis; Monopoli, Giovanni; Falco, Leonardo; Hahn, Frederik; Monopoli, Vito; Liserre, Marco. - ELETTRONICO. - (2019), pp. 8927647.6102-8927647.6107. (Intervento presentato al convegno 45th Annual Conference of the IEEE Industrial Electronics Society, IECON 2019 tenutosi a Lisbon, Portugal nel October 14-17, 2019) [10.1109/IECON.2019.8927647].
Control Strategies for Losses Optimization in Modular Multilevel Converter
Vito Monopoli;
2019-01-01
Abstract
The Modular Multilevel Converter represents a really promising solution for several high-power applications. Nevertheless, to furtherly enhance the penetration of such conversion structure and to fully exploit its advantages, some issues related to its operation need to be addressed. In particular, this converter features some circulating currents that deeply affect both the conduction losses occurring in the semiconductor devices and the voltage ripple across the capacitors of this conversion structure, which in turn influences the converter efficiency. In order to minimize the converter losses, this work proposes innovative control strategies of the circulating currents by calculating the optimal value of their reference. Alongside the increase of the converter efficiency, the proposed control strategies allow additional advantages in terms of enhancing the converter reliability and extending the overall system lifetime.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
