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This work, which has started as an endeavour against the air pollution in large cities, is dealing with the analysis and the design considerations of an electric vehicle using the existing vehicle coach type SEAT marbella 850. The under construction EV driving system consists of an Induction Motor, a PWM voltage source IGBT inverter, the existing gear box, a battery power source and an on board charger with unity input power factor. Moreover, the design of an induction machine and an on board charger is investigated so that to exhibit high efficiency, small size and low weight. The experimental EV will be ideal for heavy traffic driving cycle. Its cruising range out of the city varies greatly with the speed, 113 km at 40 km/h or 50 km at 100 km/h. Moreover, the thermal characteristics of the motor and the possibility of an automatic transmission will be investigated.
Small scale PV applications such as water pumping or refrigeration systems require intelligent power conditioning hardware to adapt PV array output to load. In this research program the design aspects of a proposed solar power pumping system are presented. The system consists of the following parts:
The proposed system exhibits low implementation cost, high reliabitity, high efficiency, easy power expandabibity and control simplicity. In the proposed system the modular DC-DC converter is designed for applications where the voltage of the PV has to be converted to high voitage in order to be matched with the input voltage of the DC-AC inverter. Finally, the simple controller of the system provides soft start of the system.