Effect of high-altitude Airship's attitude on performance of its energy system

The computation method for solar radiation on solar cells of the curved surface of the high-altitude airship (HAA) is presented and the HAA's attitude on performance of its energy system when the airship is flying is studied. The flexible solar cells of a curved surface on the back of the airship are partitioned into different grids, which can be seen as a tilted plane. The radiation on solar cells of a curved surface is calculated and is multiplied by the efficiency of flexible solar cells. The change of HAA's attitude may lead to decreasing of the output power of its solar cells. The HAA should keep the attitude at which its solar cells will absorb energy as much as possible to increase its station-keeping ability.