Roof solar energy concentrating power generation system

Abstract

The invention belongs to the technical field of solar photovoltaic power generation, and particularly relates to a roof solar energy concentrating power generation system. The roof solar energy concentrating power generation system is characterized by including a support which comprises a support frame and a tilting center jack stay and two rotating centre lines of a tilting support central axis and a concentrating unit central axis, wherein the tilting center jack stay is used for installing a concentrating power generation module, the tilting support central axis is used for facing the north-and-south direction, and the concentrating unit central axis is used for facing the east-and-west direction; the tilting support central axis and the concentrating unit central axis form an hour angle coordinate system with the geocenter serving as an origin, the tilting support central axis serving as a polar axis, and the concentrating unit central axis serving as a declination axis; and the support tracks the change of hour angles of the east-and-west direction of the sun by rotating around the polar axis and changes the incident angle of light by rotating around the declination axis. The roof solar energy concentrating power generation system utilizes the tracking support of an hour angle coordinate system structure so that the back and forth movement of an axial motor is reduced, and the reliability of the system is improved, thereby being particularly applicable to roof solar energy.

Description

technical field [0001] The invention belongs to the technical field of solar photovoltaic power generation, and in particular relates to a roof solar concentrating power generation system. Background technique [0002] When mankind is facing an energy crisis, using solar energy is undoubtedly the most abundant and reliable method. As the world's largest energy consumer, the United States proposed the "Million Solar Roofs Project" as early as 1997 in order to reduce energy consumption and greenhouse gas emissions and adjust the energy structure, which has greatly developed the solar energy application technology in the United States. After the Fukushima nuclear accident in Japan and the ensuing grid outage, rooftop solar condominiums burgeoned into an emerging market. For China, the newly added building roof area can provide 10GW of photovoltaic power generation every year. Therefore, China also clearly stated in the 12th Five-Year Plan of New Energy that "we must focus on t...

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Problems solved by technology

And the residential buildings in the city are often high-rise buildings, whose wind speed greatly exceeds the ground wind speed, and the larger the concentrating solar sail, the higher the requirements for the columns of the biaxial tracking bracket, the more demanding the wind resistance requirements, and the more troublesome It is because the dual-axis support adopts a relatively complex pitch tracking structure and control algorithm. Once such a dual-axis concentrated solar system fails abnormally on a high-rise building, it is difficult to carry out normal debugging and maintenance work.

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