Generalized direct power control for grid connected multilevel converters

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Generalized direct power control for grid connected multilevel converters

Conference Paper (2010)

Author(s)

Sebastián Rivera (Universidad Técnica Federico Santa María)

Samir Kouro (Toronto Metropolitan University)

Patricio Cortés (Universidad Técnica Federico Santa María)

Salvador Alepuz (Universitat Politecnica de Catalunya)

Mariusz Malinowski (Warsaw University of Technology)

Bin Wu (Toronto Metropolitan University)

José Rodríguez (Universidad Técnica Federico Santa María)

Affiliation

External organisation

Grid connection Multilevel converters Direct power control

DOI related publication

https://doi.org/10.1109/ICIT.2010.5472518 Final published version

To reference this document use

https://resolver.tudelft.nl/uuid:b27817f7-f2d2-442e-a692-2224e8f7858a

More Info

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Publication Year

2010

Language

English

Affiliation

External organisation

Article number

5472518

Pages (from-to)

1351-1358

ISBN (print)

9781424456970

Event

IEEE-ICIT 2010 International Conference on Industrial Technology, ICIT 2010 (2010-03-14 - 2010-03-17), Vina del Mar, Chile

Downloads counter

157

Abstract

This paper presents a generalized direct power control (DPC) scheme for grid connected multilevel converters. The proposed method extends the original DPC operating principle by considering only for selection the closest vectors to the present switching state. This approach requires the power derivatives for feedback, which can present numerical implementation problems in real time. Therefore a grid virtual flux based observer is proposed to overcome this issue. The proposed method is applicable to any multilevel converter topology of any number of levels. In this paper simulations results are presented for a 9 level cascaded H-bridge converter. The proposed solution enables DPC for multilevel converters used in medium voltage applications while improving overall power quality and efficiency of the system.