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Demonstration of Feeding VIPV-Converted Energy into the High-Voltage On-Board Network of Practical Light Commercial Vehicles for Range Extension
R. Peibst, H. Fischer, S. Wöhe, R. Wecker, F. Haase, H. Schulte-Huxel, S. Blankemeyer, M. Köntges, C. Hollemann, R. Brendel, G. Wetzel, J. Krügener, H.-J. Nonnenmacher, H. Mehlich, A. Salavei, K. Ding, A. Lambertz, B.E. Pieters, S. Janke, B. Stannowski, L. Korte, M. Brunner, S. Lutz, A. Schiessl, A. Semmelmann, R. Steib
PV Applications, Integration and Storage
Subtopic: PV in Infrastructure, on Water and on Vehicles; PV and Agriculture
Event: 38th European Photovoltaic Solar Energy Conference and Exhibition
Session: 6DO.8.4
ISBN: 3-936338-78-7
0,00 EUR
Document(s): presentation


Vehicle Integrated Photovoltaics (VIPV) can contribute to the reducon of CO2 emissions from the transport sector and reduces peak loads for electric grid [1,2]. So far, it has been applied in “praccal vehicles” mainly for indirect onboard funcons such as cooling or air condioning [3]. In this case, the PV generated electricity is fed into the low voltage (12 V) onboard network with a rather limited baery capacity < 1 kWh. To also ulize PVconverted energy for driving and thus for reducon of charging events from the grid [4], it is required to feed it into the high voltage onboard network. This approach also has the advantage that the large capacity of the high voltage baery can be accessed to store all PVconverted energy, e.g. when charging during parking mes. However, the DC/DC conversion from the typical output voltage of maximum power point trackers (MPPTs) at 12 V to the 400 V level is not trivial and requires a welldesigned buckboost converter with a smart operaon strategy, a high conversion efficiency and low standby power consumpon. Furthermore, safety issues and possible interferences with crical driving funcons are much more severe when interfacing to the high voltage onboard network. In this work, we address these challenges (together with the requirement to develop highly efficient and durable VIPV modules and fast MPPT trackers) by seng up a demonstrator vehicle to experimentally demonstrate a high solar coverage > 20 % for driving a praccal light commercial electrical vehicle.