Photovoltaic grid connection power generation system based on solar panel access method selector
A technology of solar panels and grid-connected power generation, which is applied in photovoltaic power generation, single grid parallel feeding arrangement, etc., can solve the problems of insufficient power and waste of electricity, etc., to improve the working range, avoid the decline of working efficiency, and optimize the photovoltaic energy. The effect of utilization efficiency
Inactive Publication Date: 2012-08-01
NANJING UNIV
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Although the solar energy has been converted into direct current in the solar panel at this time, the power is not large enough for the micro-inverter to feed power to the grid, so this part of the electricity is wasted
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[0026] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.
[0027] Such as figure 1 As shown, the photovoltaic grid-connected power generation system based on the solar panel access mode selector in this embodiment includes a plurality of independent unit photovoltaic grid-connected power generation systems, and each independent unit photovoltaic grid-connected power generation system includes 15 solar panels solar panels and 15 micro-inverters, and each independent unit is assigned a solar panel access mode selector and a group ...
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The invention discloses a photovoltaic grid combination power generation system based on a solar panel access method selector, which is characterized by comprising a plurality of photovoltaic grid connection power generation systems provided with independent units, the structures of the photovoltaic grid connection power generation systems are the same, each photovoltaic grid connection power generation system comprises a solar panel access method selector, a micro inverter group, a solar panel group and a coordination switch group. The solar panel access method selectors are connected with the solar panel groups, the on-off condition of the coordination switch groups are controlled by collecting output current and voltage of the solar panel groups according to the output power of the solar panel groups, so that the connection method of the solar panel groups and the micro inverter groups is controlled. The photovoltaic grid connection power generation system based on the solar panel access method selector controls the on-off condition of the coordination switch groups according to the output power of the solar panel groups, improves working range of a micro inverter photovoltaic grid connection system, and achieves optical photovoltaic energy utilization efficiency.
Description
technical field [0001] The invention relates to a photovoltaic grid-connected power generation system based on a solar panel access mode selector, and belongs to the technical field of solar power generation systems. Background technique [0002] Solar energy is inexhaustible, renewable, clean and environmentally friendly; the sun shines on the earth, everywhere, without transportation, it can be said to be a non-monopoly resource shared by people all over the world. It has immeasurable development potential. With the development of society and economy, the effective use of solar energy has become a very reliable way to determine industrial production and people's happy life, and to improve environmental pollution. It can achieve huge economic and social benefits, so it is also the most promising development of various countries. One of the renewable energy technologies. [0003] The photovoltaic power generation system absorbs sunlight through solar panels and converts th...
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IPC IPC(8): H02J3/38
CPCY02E10/563Y02E10/56
Inventor 沙金凌梦黄辰秦臻吕全亚
Owner NANJING UNIV