WIND BASED LOAD ISOLATED ELECTRICAL CHARGING SYSTEM

摘要

The invention relates to electrically operated vehicle with power supply system having wind based charging unit with load isolation. The power supply nit has one or more energy storage device with an inverter for supplying AC loads. Two such power supply units are used in an electric vehicle application for supplying the drive load. The power supply units when operated through an intermediate section and an output combiner, supplies to the load with complete isolation from the recharging unit of the system. Due to which, the energy storage devices serves for large distance range.

主权项

1. An electric propulsion system for an electric vehicle to supply electric energy to drive a load comprising an electric drive motor of the electric vehicle, the system comprising:
a power supply system including at a least first and second power supply units, each power supply unit having an input and an output and including electric batteries initially charged prior to operation, connected in electrical series or electrical parallel between the input and output and producing electrical energy at the output, a discharge of the batteries determining a driving range of the vehicle; a wind generator having a generator output and being powered by wind to generate electric energy at the generator output in a recharging mode, and having a rest mode in which the wind generator, when rotating freely, produces no electric energy at the generator output; a combiner for being coupled to the drive motor and receiving electric energy from one of the first and second power supply units and ensuring a continuous flow of electric supply to the drive motor without intermittence; and an intermediate section configured during a first cycle to connect the energy storage devices of the first power supply unit in electrical series with the wind generator in rest mode, and to couple the electric output of the first power supply unit to the combiner for supplying electrical energy to the electric drive motor, and simultaneously connect the energy storage devices of the second power supply unit in electrical parallel with the wind generator for recharging the energy storage devices of the second power supply unit, and configured during a second cycle to connect the energy storage devices of the second power supply unit in electrical series with the wind generator in rest mode, and to couple the electric output of the second power supply unit to the combiner for supplying electrical energy to the electric drive motor, and simultaneously connect the energy storage devices of the first power supply unit in electrical parallel with the wind generator for recharging the energy storage devices of the first power supply unit; with electrical isolation maintained between the recharging circuits and the drive load of the vehicle.