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CN-224205011-U - Photovoltaic module and photovoltaic power station

CN224205011UCN 224205011 UCN224205011 UCN 224205011UCN-224205011-U

Abstract

The application relates to a photovoltaic module and a photovoltaic power station, comprising a battery piece, an energy storage film and a junction box control circuit. The junction box control circuit is used for controllably storing the electric energy output by the battery piece in the energy storage film and controllably enabling the energy storage film to output the electric energy. In the outdoor operation process of the photovoltaic module, when the electricity limiting and breaking occur, the junction box control circuit can store redundant electric quantity in the energy storage film, when the power generation efficiency of the photovoltaic module is reduced and even power generation cannot be performed due to insufficient illumination, the junction box control circuit can convey electric energy stored in the energy storage film to the power grid through a specific electric energy release mechanism according to a demand signal of the power grid, so that the defect of discontinuity of photovoltaic power generation in time is effectively overcome, power can be continuously supplied, and the stability and reliability of the whole photovoltaic power station are improved. Meanwhile, the energy storage film is used for storing electric energy, the photovoltaic module is convenient to assemble, and the cost is low.

Inventors

  • SHEN XIAOBAO
  • FAN HUALONG

Assignees

  • 通威太阳能（成都）有限公司

Dates

Publication Date
20260505
Application Date
20250509

Claims (10)

  1. 1. A photovoltaic module, comprising: a battery sheet (110); An energy storage film (120), wherein the energy storage film (120) is connected with the battery piece (110), and The junction box control circuit (130), battery piece (110) and energy storage membrane (120) all with junction box control circuit (130) electric connection, junction box control circuit (130) are used for controllably with the electric energy that battery piece (110) output store in energy storage membrane (120) and controllably make energy storage membrane (120) output electric energy.
  2. 2. The photovoltaic module according to claim 1, further comprising a front panel (140), a first adhesive layer (150), a second adhesive layer (160), and a back panel (170), wherein the front panel (140), the first adhesive layer (150), the battery sheet (110), the second adhesive layer (160), and the back panel (170) are sequentially disposed, and wherein the energy storage film (120) is disposed between the front panel (140) and the back panel (170) or on any side of the front panel (140) and the back panel (170) facing away from each other.
  3. 3. The photovoltaic module according to claim 2, wherein the energy storage film (120) is a non-light-transmitting film, and the energy storage film (120) is disposed between the second adhesive layer (160) and the back plate (170) or on a side of the back plate (170) facing away from the second adhesive layer (160).
  4. 4. A photovoltaic module according to claim 3, characterized in that when the energy storage film (120) is arranged on the side of the back plate (170) facing away from the second adhesive layer (160), the photovoltaic module further comprises a protective layer (180), the energy storage film (120) being arranged between the back plate (170) and the protective layer (180).
  5. 5. The photovoltaic module of claim 3, further comprising a thermoelectric generation film (190), wherein the thermoelectric generation film (190) is connected to the battery piece (110), and wherein the thermoelectric generation film (190) is electrically connected to the junction box control circuit (130).
  6. 6. The photovoltaic module according to claim 5, wherein the thermoelectric generation film (190) is disposed between the second adhesive layer (160) and the back panel (170).
  7. 7. The photovoltaic module of claim 6, further comprising an insulating layer (191), the insulating layer (191) being disposed between the thermoelectric generation film (190) and the energy storage film (120).
  8. 8. The photovoltaic module according to claim 5, characterized in that the thermally generated film (190) is a flexible thermally generated film and/or the thickness of the thermally generated film (190) is 10 -5 mm to 0.5mm.
  9. 9. The photovoltaic module according to any one of claims 1 to 8, characterized in that the energy storage film (120) is a flexible energy storage film, and the thickness of the energy storage film (120) is 10 -5 mm to 1mm.
  10. 10. A photovoltaic power plant, characterized in that it comprises a photovoltaic module according to any one of claims 1 to 9.

Description

Photovoltaic module and photovoltaic power station Technical Field The application relates to the technical field of photovoltaics, in particular to a photovoltaic module and a photovoltaic power station. Background Photovoltaic power generation is the direct conversion of light energy into electrical energy by utilizing the photovoltaic effect of semiconductors. With the rapid development of photovoltaic power generation technology, the power generation efficiency of photovoltaic modules is higher and higher. The photovoltaic module in the related art still has a plurality of problems that continuous power supply is difficult to realize when illumination is insufficient, the power generation stability is poor and the electric energy is difficult to store. The scheme that the photovoltaic module is combined with external energy storage equipment is provided to solve the problems that the illumination is insufficient, the continuous power supply is difficult, the power generation stability is poor and the electric energy storage is difficult, however, the defects of complex system, inconvenient assembly, high cost, large occupied area and the like exist. The energy storage battery is made into a small-sized modularization and then is mounted on the back surface of the photovoltaic module, so that the problems that continuous power supply is difficult due to insufficient illumination, the power generation stability is poor and the electric energy storage is difficult are solved, and the defects of complex assembly operation, high cost and the like still exist. Disclosure of utility model Based on this, it is necessary to overcome the defects of the prior art, and provide a photovoltaic module and a photovoltaic power station, which can realize continuous power supply, improve the power generation stability, and simultaneously facilitate assembly and have lower cost. A photovoltaic module, comprising: A battery sheet; an energy storage film connected with the battery piece, and The junction box control circuit is used for controllably storing the electric energy output by the battery piece in the energy storage film and controllably enabling the energy storage film to output the electric energy. In one embodiment, the photovoltaic module further comprises a front panel, a first bonding layer, a second bonding layer and a back panel, wherein the front panel, the first bonding layer, the battery piece, the second bonding layer and the back panel are sequentially arranged, and the energy storage film is arranged between the front panel and the back panel or on any side, deviating from each other, of the front panel and the back panel. In one embodiment, the energy storage film is a non-light-transmitting film, and the energy storage film is disposed between the second adhesive layer and the back plate or disposed on a side of the back plate facing away from the second adhesive layer. In one embodiment, when the energy storage film is disposed on a side of the back panel facing away from the second adhesive layer, the photovoltaic module further includes a protective layer, and the energy storage film is disposed between the back panel and the protective layer. In one embodiment, the photovoltaic module further comprises a thermoelectric generation film, the thermoelectric generation film is connected with the battery piece, and the thermoelectric generation film is electrically connected with the junction box control circuit. In one embodiment, the thermoelectric generation film is disposed between the second adhesive layer and the back plate. In one embodiment, the photovoltaic module further comprises an insulating layer disposed between the thermoelectric generation film and the energy storage film. In one embodiment, the thermal power generation film is a flexible thermal power generation film, and/or the thickness of the thermal power generation film is 10 -5 mm-0.5 mm. In one embodiment, the energy storage film is a flexible energy storage film, and the thickness of the energy storage film is 10 -5 mm-1 mm. A photovoltaic power plant, which comprises a photovoltaic power plant, the photovoltaic power station comprises the photovoltaic module. The photovoltaic module and the photovoltaic power station have the energy storage function due to the energy storage film. In the outdoor operation process of the photovoltaic module, when the electricity limiting and breaking occur, the junction box control circuit can store redundant electric quantity in the energy storage film, when the power generation efficiency of the photovoltaic module is reduced and even power generation cannot be performed due to insufficient illumination, the junction box control circuit can convey electric energy stored in the energy storage film to the power grid through a specific electric energy release mechanism according to a demand signal of the power grid, so that the defect of discontinuity of photovoltaic power generation in time