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Hybrid Robotic Wheelchair with Photovoltanic Solar Cell and Fuel Cell
Yoshihiko Takahashi,Shogo Matsuo,Kei Kawakami 제어로봇시스템학회 2008 제어로봇시스템학회 국제학술대회 논문집 Vol.2008 No.10
A hybrid robotic wheelchair powered by three energy sources, a battery, a photovoltanic solar cell, and a hydrogen fuel cell is proposed in this paper. The advantage of using a photovoltanic solar cell (a solar panel) is that it produces power without requiring use of fossil fuels. The advantage of using a fuel cell is that a hydrogen tank may be changed quickly and easily. We also propose an energy control system which is able to select the energy source optimally according to the operating conditions. The control system ideally gives priority to the photovoltanic solar cells before the fuel cell. When conditions allow for abundant sun light, the photovoltanic solar cell is used. When solar energy is not available, the fuel cell is used. Finally, when the hydrogen is depleted, the battery is used. This paper explains the concept of the hybrid robotic wheelchair, the mechanical design, the energy control system, and the experimental results on the energy source selection.