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The inductor-capacltor-lnductor (LCL) fault tolerant DC/DC converters have shown promising properties in DC voltage stepping using no internal AC transformer. This paper details design and modelling a 5kW, 250V/400V LCL IGBT based DC transformer. The design is to be prototyped at CITCEA-UPC in Barcelona and put into a five terminal mock up DC grid located at Electrical Engineering and Power Electronics...
This paper is focused in the control design of a DC/DC Current Flow Controller (CFC) for meshed HVDC grids. It proposes a control design methodology based on an outer current loop to regulate DC grid currents and an inner voltage loop to keep under control the CFC voltage. This approach is able to limit the CFC voltage to avoid exceeding the device limitations. A linear model of the HVDC grid including...
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