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Solar cell module and solar power generation system

A technology for solar cells and power generation systems, applied in the field of solar cell modules and solar power generation systems, can solve problems such as cell damage

Pending Publication Date: 2020-10-30
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When current flows from a solar cell that is generating electricity, the solar cell that becomes a resistor heats up and becomes a hot spot, and in the worst case, the cell may be destroyed

Method used

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  • Solar cell module and solar power generation system
  • Solar cell module and solar power generation system
  • Solar cell module and solar power generation system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0043] (constitute)

[0044] The solar cell module 1 of this embodiment is a tile-integrated solar cell module that has the function of a roof tile itself and is arranged on the roof mixed with ordinary roof tiles, such as figure 1 As shown, the solar cell module 1 includes a quadrangular solar cell module main body 2 and four frames 3 mounted on four sides of its peripheral portion. The solar cell module main body 2 is composed of three rows of solar cell groups, and each row is composed of the same number of solar cell units 2a, 2b, 2c. The solar cell module main body 2 is constituted by laminating a light-transmitting substrate, a solar cell, and a back sheet for insulating and protecting the back side on the light-receiving surface side, and is bonded to each other by a sealing material. Thereby, solar battery cells 2 a , 2 b , and 2 c are irradiated with sunlight incident from the light-receiving surface of the solar cell module main body 2 to generate power. In this e...

no. 2 approach

[0067] Figure 9 The configuration of the solar cell module of the second embodiment is shown. exist Figure 4 In the shown solar battery module of the first embodiment, solar battery cells 2d and 2e constituted by two rows are further arranged in the eaves side direction. In the solar battery module of the first embodiment, three rows of solar battery cells are formed. In the solar battery module of the second embodiment, two rows of solar battery cell strings are added in the side direction of one eaves. In the configuration, a plurality of solar cells are arranged in five rows in a direction along the housing.

[0068] from Figure 9 It can be seen that the bypass diode 10a is connected to the start and end of the solar battery cell string 4A in which the solar battery cells 2a are arranged in one row, and the bypass diode 10bc is connected to the solar battery cell string 4BC in which the solar battery cells 2b and 2c are arranged in two rows. . Further, bypass diode ...

no. 3 approach

[0071] (constitute)

[0072] Figure 10 It is a circuit diagram of the solar cell module 1 of the third embodiment. Here, similarly to the first embodiment, the solar battery cell 2a is provided facing the ridge side, and the solar battery cell 2c is provided facing the eaves side. In addition, with the circuit diagram of the solar battery module shown in the first embodiment ( Figure 4 ) The difference is the composition of the solar cell string.

[0073] In the third embodiment, the solar cell string 4AB on the ridge side is composed of two rows of solar cells 2a and 2b, and the solar cell string 4C on the eave side is composed of one row of solar cells 2c.

[0074] Therefore, bypass diode 10ab is connected to both ends of solar battery cell string 4AB, and bypass diode 10c is connected to both ends of solar battery cell string 4C. Therefore, the configuration of the solar cell module other than that is based on the first embodiment.

[0075] Next, applications of the ...

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PUM

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Abstract

A solar cell module housed in a frame (3), wherein a bypass diode (10a) is connected to the leading end and trailing end of a solar cell string (4A) in which solar cells are arranged in a single row,and a bypass diode (10bc) is connected to a solar cell string (4BC) in which solar cells are arranged in two rows. In addition, the solar cell string (4A) is disposed on whichever of the ridge side and the ridge side is more likely to be affected by shade.

Description

technical field [0001] The invention relates to a solar cell module and a solar power generation system. Background technique [0002] Conventionally, there is known a tile-integrated solar cell module in which a solar cell module functions as a roof tile and is arranged in a mixed manner with normal roof tiles. Such a tile-integrated solar cell module is installed on the roof panel of the roof such that one side on the eave side is lower than the side on the opposite ridge side among the four sides of the quadrangular solar cell module body. Furthermore, when a plurality of solar cell modules are installed on the roof, the plurality of solar cell modules are adjacently arranged from the ridge side to the eave side. [0003] Therefore, a solar cell module located closer to the ridge side (in other words, an upper stage with respect to the ridge side) and a solar cell module located near its lower stage have at least one step corresponding to approximately the thickness of t...

Claims

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Application Information

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IPC IPC(8): H01L31/0443H01L31/05H02S20/23
CPCH01L31/044H01L31/05H02S20/23Y02E10/50Y02B10/10
Inventor 大下雄太高桥昌大中村守孝
Owner SHARP KK