With the support of relevant departments, after more than ten years of continuous research on space solar power stations in China, China has drastically reduced its level with the advanced countries in the world and entered the forefront of the world. "Li Ming, Director of the Science and Technology Commission of China Aerospace Science and Technology Corporation 5 Japan Science and Technology Daily reporter said, 'If we can maintain and further intensify research and development, China is expected to become the world's first to build a practical value space solar power station.'
Data Map: Schematic diagram of space solar power plant
At the same time, Wang Li, a researcher from all five institutes, also said that not only do domestic experts have the confidence, but also the international community generally believes that China has the ability and the conditions to lead in this field.
Spatial solar energy is an efficient, long-lasting, and clean source of energy compared to fossil fuels that are increasingly depleted and have serious environmental pollution problems. By using space-based solar power plants that operate in the universe, large-scale collection and conversion of solar energy and wireless power generation Stable transmission to the ground grid, power generation up to 1 to 5 GW, generating capacity and ground-based nuclear power plant.Compared with terrestrial solar power plants and wind power, hydropower, space solar power station from day and night, weather, regional latitude and other natural factors, Moreover, the power transmission is flexible. It can provide directed power supply or mobile power supply to remote areas, affected areas and important facilities, and provide innovative solutions for improving the structure of power and energy sources and power supply. The social benefits are extremely high.
Space solar power station construction facing major technical challenges, its weight, scale, far beyond the existing space facilities, known as the new era of aerospace and energy field 'Manhattan Project.' Since the concept was proposed in 1968, the United States government and Enterprises have invested nearly 100 million U.S. dollars and have implemented a number of R & D projects. Japan formally listed space solar power plants under development in 2004 as one of the three key aerospace priority areas supported by the long-term support. Russian aerospace companies are actively promoting Chinese enterprises in the space solar power station project cooperation; India, South Korea, the European Space Agency is also carrying out relevant research.
China has put the research and development of space solar power station into the national preliminary research and planning since 2008. In recent years, a scheme of space solar power station such as platform non-concentrating, secondary symmetric concentrating, multiple rotating joints and spherical energy collecting array has been proposed, At the same time, some important advances have been made in key technologies such as wireless energy transmission.At present, China has initially realized the transformation from 'follow run' to 'run run' in the research of space solar power station and has become an important issue in promoting the development of space solar power station in the world power.
Wang Li said that in addition to technology, space solar power station construction and operation also requires huge investment, a vast market and environmental, policies and other factors with comprehensive multi-factor, all countries have to turn their attention to China, that China should play an important role in this area Traction.
In the field of aerospace, manned spaceflight, deep space exploration, heavy-duty launch vehicle, space station and so on are still far from the international advanced level, and there is still a big gap between them. Wang Li said: 'We want to build a space power. In addition to narrowing the gap in these areas, we should look for other strategic high ground. Options are limited, but we are now facing such an opportunity.'
He believes that China should not miss such opportunities.From the strategic significance, China's environment, energy problems are grim, if you can get rich, clean energy from space, such a project worth trying.To the overall efficiency, the construction of space solar energy The power plant has a great traction on technological innovation and emerging industries. It is a super project that takes into account the needs of national security strategy and drives technological innovation.
According to the relevant expert group's demonstration and suggestion in our country, our country should commit itself to complete the space UHV power transmission and wireless energy transmission test and verify in the next 10 to 15 years, and strives to achieve the goal of building a megawatt-class solar power station from 2030 to 2050 Building long-term goals of "building the capacity of a GW-Class commercial space solar power station." However, the above plan has not yet been approved by the government.
At the recent 2nd Symposium on the Development of Space Solar Power Station, all participating experts called for the state to expedite the establishment of major scientific and technological projects for space solar power generation and promote the early realization of major technological breakthroughs. Wang Li said that at present, there are dozens of Research institutes, universities and enterprises are carrying out research on key technologies such as UHV power transmission in space, efficient wireless energy transmission, on-orbit assembly of very large space structures, etc. Due to the lack of leading of major projects, the current research strength and research objectives are relatively scattered, It is necessary to integrate the relevant research through the national project, to further clarify the objectives, speed up the pace of research and development, and truly achieve the "lead" in the field of space solar power plants.
