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   A Parallel Voltage Source Converter and Diode Rectifier PMSM Drive Concept for Decoupling the Thermal Cycles in the Machine-Side Converter of an Airborne Wind E   [View] 
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 Author(s)   Bakr BAGABER 
 Abstract   Pumping cycle (PC) Airborne wind energy systems (AWES) are novel wind turbines capable of fostering wind fields at high altitudes. The unique load profile of PC-AWES creates strong thermal cycles within the machine-side voltage source converter (VSC) which affect its lifetime. In this work, a novel drive concept comprising a voltage source converter paralleled with a passive diode rectifier (DR) is proposed to decouple and reduce the impact of those thermal cycles. The results suggest that this approach combined with an adjusted flight control of the kite and a reduced switching frequency can scale down the required IGBT chip area for a target lifetime of 20 years by 63\%, and the diode chip area by 18\%. The losses at nominal load are also reduced by 30\%. 
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Filename:0356-epe2021-full-17310681.pdf
Filesize:839.2 KB
 Type   Members Only 
 Date   Last modified 2022-03-15 by System