A new concept of space solar power satellite

作者：Li, Xun; Duan, Baoyan; Song, Liwei^*; Yang, Yang; Zhang, Yiqun; Wang, Dongxu

来源：Acta Astronautica, 2017, 136: 182-189.

DOI：10.1016/j.actaastro.2017.03.017

• Space solar power satellite (SSPS)
• Microwave power transmission (MPT)
• Inductive power transmission
• Energy conversion

Space solar power satellite (SSPS) is a tremendous energy system that collects and converts solar power to electric power in space, and then transmits the electric power to earth wirelessly. In this paper, a novel SSPS concept based on epsilon-near-zero (ENZ) metamaterial is proposed. A spherical condenser made of ENZ metamaterial is developed, by using the refractive property of the ENZ metamaterial sunlight can be captured and redirected to its center. To make the geometric concentration ratio of the PV array reasonable, a hemispherical one located at the center is used to collect and convert the normal-incidence sunlight to DC power, then through a phased array transmitting antenna the DC power is beamed down to the rectenna on the ground. Detailed design of the proposed concept is presented.

• 出版日期2017-7
• 单位西安电子科技大学