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Tecnura
Print version ISSN 0123-921X
Abstract
HIDALGO MORA, Carlos Alberto; DIAZ ALDANA, Nelson Leonardo and TRUJILLO RODRIGUEZ, César Leonardo. Design and implementation of linear controllers for VSC based HVDC DC bus regulation. Tecnura [online]. 2014, vol.18, n.40, pp.48-61. ISSN 0123-921X.
Abstract During last two decades, several technologies have developed and improved the high voltage direct current systems. The technological growth in power electronics converters has led to increase flexibility and modularity for interconnections of alternating current and direct current systems. In this sense, high voltage direct current system based on voltage source converters appear as feasible and flexible technology when active and reactive power flow have to be regulated between different power grids. Therefore, for an adequate operation, one of the major challenges is to regulate the direct current voltage and the reactive power flow between the alternating current system and the voltage source converter at the rectifier station. In this document, several methodologies will be explored for modeling, identifying, and designing controllers to regulate the direct current voltage at the common bus, and reactive power flow. In particular, linear techniques such as feedback states are used for the design of controllers. Finally, practical results will be presented on a physical voltage source converter prototype.
Keywords : Feedback State Control; Linearization; Power Flow Control; VSC.