Abstract:
The acceleration from the starting state of photovoltaic powered car is notfavorable compared with that of the current automobiles. This is resulted from the limitation-of photovoltaic qualification. A method of Electrical Array Reconfiguration managementwhich is appropriate for effective driving a photovoltaic (PV) powered car is presented. Forthe purpose of increasing the acceleration. The methods of Electrical Array Reconfigurationare parallel, series and parallel-series. The parallel one provides much torque in the initialmovement. The parallel-series is used for accelerating speed after the car is started, thenthe series is used for maintaining the velocity at a certain speed. Fuzzy logic is used todetermine the array reconfiguration automatically according to the driving situation. Fortesting of the efficiency, a solar car with 2.65 square meters solar cell is built. The resultsof initial torque of the motor in various types are that the parallel provides torque 1.4 timesmore than the parallel-series type, and more than that of the series type by 2.5 times. Sothe parallel array reconfiguration type is suitable for starting a car. In testing the maximumspeed of a motor, the results are that the series type has motor speed 2 times more thanthe paralled-series type, and 4.1 times more than the of the the parallel. So the seriesarray is appropriate for car at high speed. The acceleration of a motor in solar car by thismethod gives the better results approximately by 38 percent compared with the series typewhich is the best for the unarranged cell.