A 70 kW Next Generation Three-phase Solar Inverter with Multiple MPPTs using Advanced Cooling Concept and Stacked-PCB Architecture
Conference: PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/16/2017 - 05/18/2017 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2017
Pages: 6Language: englishTyp: PDF
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Authors:
Freiche, Remi; Franz, Sebastian; Fink, Marc; Liese, Stephan (Fraunhofer Institute ISE, Germany)
Abstract:
A 70 kW next generation three-phase solar inverter with five MPP Trackers (MPPT´s) is presented. The overall concept has been designed to achieve both high efficiency and high power density. SiC semiconductors were implemented using a “hot core” cooling concept in order to get full use of the high temperature allowed by the SiC technology. Based on a stacked PCB architecture, special care was taken to minimize the number, size and cost of the electromechanical components such as connectors and heatsinks.