This paper addresses the design and installation of a solar photovoltaic system used to charge an electric vehicle. The solar system design, instrumentation design, along with the data collection and data analysis procedures will be outlined. While the component used 'off the shelf' items commonly used in solar photovoltaic systems this was a unique project due to the large number of variables involved. The design intent was to collect enough solar energy to completely power an electric vehicle - independent of commercial power. Some of the design considerations included (a) hours of availability, (b) amount of vehicle use, (c) vehicle charging requirements, (d) availability of sunlight, and (e) system efficiencies. Systen efficiencies included the solar panels, the charge controller and associated batteries, the DC-to-AC inverter used to provide power to the electric vehicle and finally the vehicle charging system and vehicles batteries (twenty 6 volt batteries). The design goal was to provide a system that would fully charge the vehicle during daylight hours in one day, providing sufficient power for the estimated full range of the vehicle (on the order of 75 miles). The system chosen had cost of approxemately dollar 20,000 and was designed to provide 2.4 kilowatts continuously during full sunlight. The energy consumption of the vehicle has been estimated to be 2750 kWh/year, using a 5 kWh/mile figure. A PC-based network data aquisition system was designed, providing data collection and data availability over an Ethernet LAN (local area network). This allow remote display of the system status an allowed data analysis at any location on the network. The software package used was Labtech Notebook-Control-Vision, one of the leaders in the area of data aquisition and process control.
A solar electric power system for charging an electric vehicle
Sonnenbatterie-System zur Ladung der galvanischen Sekundärbatterien von Elektrofahrzeugen sowie Fernmessung und Datenerfassung der Fahrzeug-Betriebsdaten über Ethernet
1996
6 Seiten, 7 Bilder, 1 Quelle
Conference paper
English
Electric vehicle charging system using solar power charging module
European Patent Office | 2023
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