@inproceedings{oai:jaxa.repo.nii.ac.jp:00006319, author = {小田, 光茂 and Oda, Mitsushige}, book = {宇宙航空研究開発機構特別資料, JAXA Special Publication: 9th Spacecraft Charging Technology Conference}, month = {Aug}, note = {The Solar Power Satellite (SPS) and the Space Solar Power System (SSPS) have been studied for years as future alternative energy sources when fossil fuel becomes scarce. An SPS collects solar energy in orbit and transmits the energy to various destinations. An SSPS is a total system that includes an SPS and ground facilities to utilize power from the SPS. JAXA is presently conducting system-level studies of a microwave-based SSPS (M-SSPS) and laser-based SSPS (L-SSPS). The M-SSPS is comprised of solar energy collection mirrors, power generators (PV arrays), and power transmitters (amplifiers and antennas). The size of the primary mirror will be 7 sq km, and the total mass will be 10 thousand tons to receive 1 gigawatt of electrical power on Earth. The other major SSPS concept is a laser-based system SSPS (L-SSPS), which uses a laser to transmit power. The M-SSPS requires the use of high voltage to transmit electrical power from the power generator (PV arrays) to the power transmitter to reduce the mass of cables and electrical loss at the cables. The power transmission tube (e.g., a magnetron) also must use high voltage. These high voltage devices may generate electrical charge and discharge. This is one of many technical challenges to be overcome before an SSPS is realized., 資料番号: AA0049206004, レポート番号: JAXA-SP-05-001E}, pages = {36--39}, publisher = {宇宙航空研究開発機構, Japan Aerospace Exploration Agency (JAXA)}, title = {Solar Power Satellites and electrical charge/discharge}, volume = {JAXA-SP-05-001E}, year = {2005} }