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Photovoltaic power generation device with global maximum power output function

A maximum power output, photovoltaic power generation technology, applied in output power conversion devices, photovoltaic power generation, photovoltaic power plants and other directions, can solve problems such as the inability to solve the maximum power output of photovoltaic arrays, and achieve compact structure, high power generation efficiency, and strong reliability. Effect

Active Publication Date: 2012-02-15
杭州禾迈电力电子股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current software and hardware measures cannot solve the problem of maximum power output of photovoltaic arrays under partial shadow conditions

Method used

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  • Photovoltaic power generation device with global maximum power output function
  • Photovoltaic power generation device with global maximum power output function
  • Photovoltaic power generation device with global maximum power output function

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Embodiment Construction

[0032] Such as Figure 7 As shown, the photovoltaic power generation device with the global maximum power output function in the embodiment of the present invention includes a photovoltaic cell array 1 and a main converter 2, the photovoltaic cell array 1 includes a plurality of photovoltaic cells 11 connected in series, and the photovoltaic power generation device also includes a power regulation The array 3 and the auxiliary converter 4, the input end of the auxiliary converter 4 is connected to the DC bus of the photovoltaic cell array 1, the power regulation array 3 includes a power regulation unit 31 corresponding to the photovoltaic cells 11 one by one, and the power regulation unit 31 and The corresponding photovoltaic cells 11 are connected in parallel, and the input end of the power adjustment unit 31 is connected with the output end of the auxiliary converter 4 .

[0033] The power adjustment unit 31 of this embodiment is connected to the auxiliary converter 4 throug...

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Abstract

The invention discloses a photovoltaic power generation device with a global maximum power output function, which comprises a photovoltaic cell array and a main converter, wherein the photovoltaic cell array comprises a plurality of series photovoltaic cells. The photovoltaic power generation device also comprises a power adjustment array and an auxiliary converter, wherein an input end of the auxiliary converter is connected with a direct current bus of the photovoltaic cell array, and the power adjustment array comprises power adjustment units corresponding to the photovoltaic cells one by one; and the power adjustment units are connected with the corresponding photovoltaic cells in parallel, and input ends of the power adjustment units are connected with an output end of the auxiliary converter. The photovoltaic power generation device has the advantages that the structure is simple, the cost is low, and the reduced output current under partial shade conditions can be automatically compensated to realize the maximum power output of a single photovoltaic cell.

Description

technical field [0001] The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic power generation device with a global maximum power output function. Background technique [0002] With the gradual depletion of fossil fuels, the energy issue has become a major issue of increasing concern to the world, and it is also a frontier scientific and technological issue of strategic significance that our country has vigorously researched and urgently needs to be solved. At the same time, problems such as environmental degradation and climate warming have prompted countries to vigorously develop clean, safe, and low-carbon renewable energy technologies, such as wind energy, solar energy, tidal energy, geothermal energy, fuel cells, and hybrid technologies. The next came into being. Among the utilization of many renewable energy sources, the solar photovoltaic power generation system is the second largest power generation method after the wind...

Claims

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Application Information

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IPC IPC(8): H02N6/00H02M3/335G05F1/67H02S10/00
CPCY02E10/56
Inventor 吴建德杜进刘正阳何湘宁
Owner 杭州禾迈电力电子股份有限公司
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