GEO High Power WPT Demonstration Mission-The Proposed Second Step to Develop Space Solar Power
- Paper ID
95916
- DOI
- author
- company
CAST
- country
China
- year
2025
- abstract
Space solar power (SSP) system, a major type of space-based power-generating equipment, is expected to be an important infrastructure providing massive,continuous, and stable green electricity by utilizing solar energy in space.Many countries and organizations consider SSP to be one of the promising clean energy sources.China Academy of Space Technology (CAST) put forward an updated roadmap based on MR-SPS concept. In the roadmap, the GEO high power WPT demonstration mission is proposed to be carried out in 2030.The mission, based on the first proposed demonstration mission-High Power Electric Generation and WPT Demonstration, will demonstrate the high power electric power generation,wireless power transmission, space super-large structure, assembly and control technologies further and will lay the foundation for the next stage, MW Space Solar Power.The mission includes a spacecraft in GEO and a receiving system on ground to evaluate high power electricity system,very long distant WPT and robot assembly technologies in space.The spacecraft includes some modules which need to be launched to LEO firstly.Then the spacecraft will be assembled in LEO by space assembly robot. The spacecraft will generate over 400 kW electric power and transmit 200 kW RF.The WPT will be conducted in LEO firstly.Then the spacecraft will transfer to GEO and demonstrate WPT in GEO. At the same time, as a huge high power platform, the spacecraft can install the laser power transmission device to become a space charge station to supply power to other satellites near the spacecraft.Or the spacecraft can install some computers to become a space super-computer center to service other satellites.