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This paper presents an application of the three-level Flying Capacitor Converter (FCC) in an AC-DC-AC (Back to Back - BtB) system interfacing a wind turbine with an asynchronous generator to the grid. The FCC operates as the machine converter (MC) while also three-level Diode Clamped Converter (DCC) is the grid converter (GC). Whole control is based on Voltage Oriented Control (VOC) and Indirect-Field...
The WaveDragon is a 7 megawatt wave energy converter, that is currently developed for clean offshore energy production. The system will be floating several kilometres off the Pembrokeshire coast, Wales, UK, and transfers energy using a submarine power cable. Key interest is the control of the power take-off system at disturbed voltages and under weak-grid condition due to long submarine cable and...
In this paper two different approaches of direct power control - DPC algorithms for three phase AC/DC converters have been presented. The first approach DPC-SVM uses typical PI controllers and space vector modulator-SVM. The second approach predictive direct power control P-DPC is based on mathematical model of converter. This control in every sampling period selects the voltage-vectorspsila sequences...
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