The thermal management and determination of maximum allowable switching frequency are two important challenges in operating PV converters. The paper deals with the thermal modelling of inverters based on temperaturedependent analytical device models. The thermal phenomenon is studied with equivalent RC circuits. A passive cooling solution for PV power converters is considered. The efficiency of the converter reduces with the temperature variation. The lower operating temperature reached by the liquid cooled inverter allows to strongly reduce the efficiency decrease.
THERMAL MODELLING AND COOLING SYSTEM DESIGN OF PV POWER CONVERTERS
FARANDA, ROBERTO SEBASTIANO;LEVA, SONIA
2013-01-01
Abstract
The thermal management and determination of maximum allowable switching frequency are two important challenges in operating PV converters. The paper deals with the thermal modelling of inverters based on temperaturedependent analytical device models. The thermal phenomenon is studied with equivalent RC circuits. A passive cooling solution for PV power converters is considered. The efficiency of the converter reduces with the temperature variation. The lower operating temperature reached by the liquid cooled inverter allows to strongly reduce the efficiency decrease.File in questo prodotto:
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