CN110768610A - Illumination power supply system based on building integrated photovoltaic - Google Patents

Illumination power supply system based on building integrated photovoltaic Download PDF

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Publication number
CN110768610A
CN110768610A CN201911172934.2A CN201911172934A CN110768610A CN 110768610 A CN110768610 A CN 110768610A CN 201911172934 A CN201911172934 A CN 201911172934A CN 110768610 A CN110768610 A CN 110768610A
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CN
China
Prior art keywords
unit
lighting
power generation
energy storage
power
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Pending
Application number
CN201911172934.2A
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Chinese (zh)
Inventor
林虎
黄志清
夏树贵
刘建成
袁旭峰
熊炜
邹晓松
邵振
陈明洋
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Guizhou Power Grid Materials Co ltd
Guizhou University
Tongren Power Supply Bureau of Guizhou Power Grid Co Ltd
Original Assignee
Guizhou Power Grid Materials Co ltd
Guizhou University
Tongren Power Supply Bureau of Guizhou Power Grid Co Ltd
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Application filed by Guizhou Power Grid Materials Co ltd, Guizhou University, Tongren Power Supply Bureau of Guizhou Power Grid Co Ltd filed Critical Guizhou Power Grid Materials Co ltd
Priority to CN201911172934.2A priority Critical patent/CN110768610A/en
Publication of CN110768610A publication Critical patent/CN110768610A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S10/00—PV power plants; Combinations of PV energy systems with other systems for the generation of electric power
    • H02S10/20—Systems characterised by their energy storage means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
    • H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
    • H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
    • H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/60—Planning or developing urban green infrastructure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/10—Photovoltaic [PV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/50—Photovoltaic [PV] energy
    • Y02E10/56—Power conversion systems, e.g. maximum power point trackers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin

Abstract

The invention discloses a photovoltaic building integration-based lighting power supply system, which is connected with a power grid and comprises: the lighting system comprises a power generation unit, a lighting unit and an energy storage unit, wherein the power generation unit is connected with a power grid, the lighting unit is respectively connected with the power generation unit and the power grid, and the energy storage unit is respectively connected with the power generation unit and the lighting unit. According to the invention, the power generation unit is connected with the energy storage unit, so that the electric energy generated by the power generation unit can be stored in the energy storage unit, the electric energy stored in the energy storage unit can supply power to the illumination unit when the illumination intensity is poor and the power generation unit generates insufficient power, and the phenomenon of unstable power supply caused by insufficient power generation is prevented. The solar photovoltaic power generation system is connected with the power grid, so that when the illumination intensity is good, the residual electric energy after the electric energy generated by the power generation unit is stored in the energy storage unit can be fed back to the power grid, and the high utilization rate of the energy can be realized.

Description

Illumination power supply system based on building integrated photovoltaic
Technical Field
The invention relates to the field of photovoltaic power generation, in particular to a photovoltaic building integration-based lighting power supply system.
Background
With the development of science and technology, more and more new energy sources are gradually developed and used, such as photovoltaic energy, wind energy, tidal energy, geothermal energy and the like. In order to advocate the use of renewable energy and reduce the influence of the traditional power station on the environment, new energy is used for generating electricity step by step.
Most of the traditional power generation by using new energy is to build a new energy power station, which not only occupies large space, but also has influence on the environment. Because most power stations are not used in residential areas and industrial areas, the consumption of power transmission lines is high, and the loss of electric energy caused by line loss is also high, a power supply technology based on Building Integrated Photovoltaic (BIPV) is provided.
However, the power supply technology based on BIPV in the prior art still has the defects. When the illumination condition is good, the electric energy generated by the photovoltaic module greatly exceeds the electric energy actually required by the lighting device in the building, so that the redundant electric energy generated by the photovoltaic module cannot be well utilized, and the energy utilization rate is low. In addition, when the illumination condition is not good, the electric energy generated by the photovoltaic module is insufficient, and the power cannot be supplied to all the electric equipment in the building, so the power supply performance of the power supply technology based on the BIPV in the prior art is unstable. Therefore, how to manufacture a BIPV-based power supply system with high energy utilization rate and stable power supply performance remains a difficult problem to be solved at present.
Disclosure of Invention
The invention aims to provide a photovoltaic building integration-based lighting power supply system which is used for improving the utilization rate of energy and can stably supply power to lighting equipment.
In order to achieve the purpose, the invention provides the following scheme:
a building-integrated Photovoltaic (PV) -based lighting power supply system is connected with a power grid and comprises:
the power generation unit is connected with the power grid and used for generating electric energy and transmitting the electric energy to the power grid;
the lighting unit is respectively connected with the power generation unit and the power grid and is used for lighting under the action of electric energy provided by the power generation unit or the power grid;
and the energy storage unit is respectively connected with the power generation unit and the illumination unit, and is used for storing the electric energy generated by the power generation unit and supplying power to the illumination unit.
Optionally, the power generation unit includes a photovoltaic panel, the photovoltaic panel is located on the surface of the building, and the photovoltaic panel is connected to the illumination unit, the power grid and the energy storage unit respectively.
Optionally, the power generation unit further includes a combiner box, and the number of the photovoltaic power generation panels is multiple;
the positive electrode and the negative electrode of each photovoltaic power generation plate are respectively connected to the positive electrode input hole and the negative electrode input hole of the confluence box;
and the positive output hole and the negative output hole of the combiner box are connected to the lighting unit, the energy storage unit and the power grid.
Optionally, the photovoltaic building integration-based lighting power supply system further includes a voltage boosting unit, a low-voltage side of the voltage boosting unit is connected to the power generation unit, and the energy storage unit, the power grid and the lighting unit are connected in parallel to a high-voltage side of the voltage boosting unit.
Optionally, the energy storage unit includes an energy storage battery, the energy storage battery is connected with the power generation unit and the lighting unit respectively, and the energy storage battery is used for charging under the electric energy generated by the power generation unit or discharging to supply power to the lighting unit.
Optionally, the energy storage unit further includes a charge and discharge controller, the charge and discharge controller is electrically connected to the energy storage battery, and the charge and discharge controller is configured to control the energy storage battery to charge or discharge.
Optionally, the lighting unit includes a dc LED lamp, and the dc LED lamp is connected to the power generation unit, the energy storage unit, and the power grid, respectively, and is configured to illuminate under the action of electric energy provided by the power generation unit, the energy storage unit, or the power grid.
Optionally, the lighting unit further includes a controller, and the controller is electrically connected to the dc LED lamp and is configured to control the lighting unit to be turned on or off.
Optionally, the number of the direct current LED lamps and the number of the controllers are multiple, the direct current LED lamps are connected in parallel, and the number of the direct current LED lamps is equal to that of the controllers.
Optionally, the lighting power supply system based on building integrated photovoltaic further includes a control unit, the control unit is respectively electrically connected with the energy storage unit and the lighting unit, the control unit is configured to control the energy storage unit to charge or discharge, and the control unit is further configured to control the lighting unit to turn on or turn off.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
according to the invention, the power generation unit is connected with the energy storage unit, so that the electric energy generated by the power generation unit can be stored in the energy storage unit, the electric energy stored in the energy storage unit can supply power to the illumination unit when the illumination intensity is poor and the power generation unit generates insufficient power, and the phenomenon of unstable power supply caused by insufficient power generation is prevented. The solar photovoltaic power generation system is connected with the power grid, so that when the illumination intensity is good, the residual electric energy after the electric energy generated by the power generation unit is stored in the energy storage unit can be fed back to the power grid, and the high utilization rate of the energy can be realized. When the illumination intensity is low, and the electric energy in the energy storage unit is not enough to supply power to the illumination unit, the power grid can directly supply power to the illumination unit, and the power supply stability is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a structural diagram of a photovoltaic building integrated based lighting power supply system of the present invention;
FIG. 2 is a schematic structural diagram of a photovoltaic building integration-based illumination power supply system of the invention;
fig. 3 is a schematic structural diagram of a large-capacity bidirectional dc/dc module according to an embodiment of the present invention.
Description of the symbols:
a power generation unit-1; a photovoltaic power generation panel-11; a combiner box-12; a power grid-2; a lighting unit-3; a direct current LED lamp-31; an energy storage unit-4; a bidirectional dc/dc module-41; an energy storage battery-42; a boosting unit-5; and a control unit-6.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a photovoltaic building integration-based lighting power supply system which is used for improving the utilization rate of energy and can stably supply power to lighting equipment.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Fig. 1 is a structural diagram of a building-integrated photovoltaic-based lighting power supply system according to the present invention, and as shown in fig. 1, the building-integrated photovoltaic-based lighting power supply system according to the present invention includes a power generation unit 1, a lighting unit 3, and an energy storage unit 4.
The power generation unit 1 is connected with a power grid 2, and the power generation unit 1 is used for generating electric energy and transmitting the electric energy to the power grid 2.
In this embodiment, the number of the photovoltaic power generation panels 11 is plural, and the photovoltaic power generation panels 11 are connected in parallel.
In order to collect the electric energy generated by each of the photovoltaic power generation panels 11, the power generation unit 1 further includes a junction box 12 (shown in fig. 2).
The positive electrode and the negative electrode of each photovoltaic power generation panel 11 are respectively connected to the positive electrode input hole and the negative electrode input hole of the combiner box 12. The positive output hole and the negative output hole of the combiner box 12 are connected with the lighting unit 3, the energy storage unit 4 and the power grid 2.
The lighting power supply system based on the building integrated photovoltaic further comprises a grid-connected cabinet (as shown in fig. 2), wherein electric energy generated by the power generation unit 1 is transmitted to the power grid 2 through the grid-connected cabinet, so that the electric energy generated by the power generation unit 1 is transmitted to the power grid 2.
And a bidirectional direct current/alternating current module is arranged between the grid-connected cabinet and the power generation unit 1, the direct current side of the bidirectional direct current/alternating current module is connected with the power generation unit 1, and the alternating current side of the bidirectional direct current/alternating current module is connected with the grid-connected cabinet.
The electric energy generated by the power generation unit 1 is converted into alternating current after passing through the bidirectional direct current/alternating current module, and the alternating current is merged into the power grid 2 through the grid-connected cabinet.
The lighting unit 3 is respectively connected with the power generation unit 1 and the power grid 2, and the lighting unit 3 is used for lighting under the action of electric energy provided by the power generation unit 1 or the power grid 2.
The lighting unit 3 comprises a direct current LED lamp 31, and the direct current LED lamp 31 is respectively connected with the power generation unit 1, the energy storage unit 4 and the power grid 2 and used for lighting under the action of electric energy provided by the power generation unit 1, the energy storage unit 4 or the power grid 2.
The lighting unit further comprises a controller for controlling the dc LED lamp 31 to be turned on or off.
The number of the direct current LED lamps 31 and the number of the controllers are equal.
The direct current LED lamps 31 are connected in series and parallel to form a plurality of branch lines according to actual requirements and are arranged in the positions of the building regions.
In this embodiment, the dc LED lamps 31 are connected in parallel.
The energy storage unit 4 is connected to the power generation unit 1 and the illumination unit 3, and is configured to store electric energy generated by the power generation unit 1 and supply power to the illumination unit 3.
The energy storage unit 4 comprises an energy storage battery 42, the energy storage battery 42 is respectively connected with the power generation unit 1 and the lighting unit 3, and the energy storage battery 42 is used for charging under the electric energy generated by the power generation unit or discharging to supply power to the lighting unit.
In this embodiment, the energy storage unit 4 further includes a bidirectional dc/dc module 41, and the energy storage battery 4 is connected to the power generation unit 1 and the lighting unit 3 through the bidirectional dc/dc module 41.
In order to control the charging and discharging states of the energy storage battery 42, the energy storage unit 4 further includes a charging and discharging controller (not shown).
The charge and discharge controller is electrically connected with the energy storage battery 42 and is used for controlling the energy storage battery to charge or discharge.
When the illumination intensity is good, the electric energy generated by the power generation unit 1 directly supplies power to the illumination unit 3, and the rest electric energy flows into the energy storage unit 4. After the energy storage unit 4 is fully charged, redundant electric energy is transmitted to the power grid 2 through the grid-connected cabinet, so that the surplus power can be connected to the Internet.
When the illumination intensity is low, such as in rainy days, the electric energy generated by the power generation unit 1 is directly supplied to the illumination unit 3, the energy storage unit 4 enters a discharge state, and the energy storage unit 4 and the power generation unit 1 jointly supply power to the illumination unit 3. When the electric energy is insufficient in the energy storage unit 4, the power grid 2 starts to supply power to the lighting unit 3, so that barrier-free power supply to the lighting unit 3 is ensured in sequence, and the stability of power supply is further improved.
In order to reduce the loss of the transmission line and improve the utilization rate of energy, the invention also comprises a boosting unit 5 (as shown in figure 2).
The low-voltage side of the boosting unit 5 is connected with the power generation unit 1, and the high-voltage side of the boosting unit 5 is connected with the power grid 2, the lighting unit 3 and the energy storage unit 4.
In the present embodiment, the positive output hole of the junction box 12 is connected to the positive electrode of the low-voltage side of the booster unit 5, and the negative output hole of the junction box 12 is connected to the negative electrode of the low-voltage side of the booster unit 5.
The high-voltage side of the boosting unit 5 is connected with the bidirectional direct current/alternating current module.
The invention also comprises a large-capacity bidirectional direct current/direct current module, and the structural schematic diagram of the module is shown in figure 3.
The high-capacity direct current/direct current module comprises a plurality of bidirectional direct current/direct current modules, wherein the input ends of the bidirectional direct current/direct current modules are connected in series, and the output ends of the bidirectional direct current/direct current modules are connected in parallel. The high-capacity bidirectional direct current/direct current module comprises an input end and a plurality of output ends.
The input end of the high-capacity bidirectional direct current/direct current module is connected with the boosting unit 5, and the bidirectional direct current/alternating current module and each direct current LED lamp 31 are respectively connected to different output ends of the high-capacity bidirectional direct current/direct current module.
The high-capacity bidirectional direct current/direct current module can remarkably improve the load bearing capacity of the bidirectional direct current/direct current module through the serial connection of the input end for voltage division and the parallel connection and the shunt of the output end, thereby enhancing the practicability and the safety and the reliability of the bidirectional direct current/direct current module.
The energy storage unit 4 is connected in front of the high-capacity bidirectional direct current/direct current module and the boosting unit 5.
The photovoltaic building integration-based illumination power supply system further comprises a control unit 6, the control unit 6 is respectively electrically connected with the energy storage unit 4 and the illumination unit 3, the control unit 6 is used for controlling the energy storage unit 4 to charge or discharge, and the control unit 6 is also used for controlling the illumination unit 3 to be turned on or turned off.
The control unit 6 is further connected to a charge and discharge controller in the energy storage unit 4, and the control unit 6 is configured to control the energy storage battery 42 to charge or discharge through the charge and discharge controller.
The control unit 6 is connected with a controller in the lighting unit 3, and the control unit 6 is used for controlling the direct current LED lamp to be turned on or off through the controller.
The controller and the charge and discharge controller are both provided with zigbee communication modules, and the controller and the charge and discharge controller are connected to the control unit in a wireless mode to realize remote control.
The invention further discloses the following technical effects:
according to the invention, the power generation unit is connected with the energy storage unit, so that the electric energy generated by the power generation unit can be stored in the energy storage unit, the electric energy stored in the energy storage unit can supply power to the illumination unit when the illumination intensity is poor and the power generation unit generates insufficient power, and the phenomenon of unstable power supply caused by insufficient power generation is prevented. The solar photovoltaic power generation system is connected with the power grid, so that when the illumination intensity is good, the residual electric energy after the electric energy generated by the power generation unit is stored in the energy storage unit can be fed back to the power grid, and the high utilization rate of the energy can be realized. When the illumination intensity is low, and the electric energy in the energy storage unit is not enough to supply power to the illumination unit, the power grid can directly supply power to the illumination unit, and the power supply stability is further improved. Through setting up the module that steps up, adopt high-tension transmission, can reduce the loss in the transmission line, improve the utilization ratio of the energy. The invention adopts direct current transmission, can simplify the complexity of wiring in the building, reduce the occupied area of cables and improve the utilization rate of space.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.

Claims (10)

1. A photovoltaic building integrated lighting power supply system is connected with a power grid, and is characterized by comprising:
the power generation unit is connected with the power grid and used for generating electric energy and transmitting the electric energy to the power grid;
the lighting unit is respectively connected with the power generation unit and the power grid and is used for lighting under the action of electric energy provided by the power generation unit or the power grid;
and the energy storage unit is respectively connected with the power generation unit and the illumination unit, and is used for storing the electric energy generated by the power generation unit and supplying power to the illumination unit.
2. The building-integrated photovoltaic-based lighting power supply system according to claim 1, wherein the power generation unit comprises a photovoltaic power generation panel, the photovoltaic power generation panel is located on the surface of a building, and the photovoltaic power generation panel is respectively connected with the lighting unit, the power grid and the energy storage unit.
3. The building-integrated photovoltaic (PV-based) lighting and power supply system of claim 2, wherein the power generation unit further comprises a combiner box, the number of the PV power generation panels is plural;
the positive electrode and the negative electrode of each photovoltaic power generation plate are respectively connected to the positive electrode input hole and the negative electrode input hole of the confluence box;
and the positive output hole and the negative output hole of the combiner box are connected to the lighting unit, the energy storage unit and the power grid.
4. The building-integrated photovoltaic lighting power supply system according to claim 1, further comprising a voltage boosting unit, wherein a low-voltage side of the voltage boosting unit is connected to the power generation unit, and the energy storage unit, the power grid and the lighting unit are connected in parallel to a high-voltage side of the voltage boosting unit.
5. The lighting power supply system based on building-integrated photovoltaic system as claimed in claim 1, wherein the energy storage unit comprises an energy storage battery, the energy storage battery is connected to the power generation unit and the lighting unit respectively, and the energy storage battery is used for charging under the electric energy generated by the power generation unit or discharging to supply power to the lighting unit.
6. The lighting power supply system based on building-integrated photovoltaic system as claimed in claim 5, wherein the energy storage unit further comprises a charge and discharge controller, the charge and discharge controller is electrically connected to the energy storage battery, and the charge and discharge controller is used for controlling the energy storage battery to charge or discharge.
7. The building-integrated photovoltaic-based lighting power supply system according to claim 1, wherein the lighting unit comprises a dc LED lamp, and the dc LED lamp is respectively connected to the power generation unit, the energy storage unit and the power grid and is used for lighting under the action of electric energy provided by the power generation unit, the energy storage unit or the power grid.
8. The building-integrated photovoltaic-based lighting power supply system according to claim 7, wherein the lighting unit further comprises a controller, and the controller is electrically connected with the direct current LED lamp and is used for controlling the lighting unit to be turned on or off.
9. The building integrated photovoltaic lighting power supply system according to claim 8, wherein the number of the direct current LED lamps and the number of the controllers are equal, and the direct current LED lamps are connected in parallel.
10. The building-integrated photovoltaic lighting power supply system according to claim 1, further comprising a control unit, wherein the control unit is electrically connected to the energy storage unit and the lighting unit, the control unit is configured to control the energy storage unit to charge or discharge, and the control unit is further configured to control the lighting unit to turn on or off.
CN201911172934.2A 2019-11-26 2019-11-26 Illumination power supply system based on building integrated photovoltaic Pending CN110768610A (en)

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CN109950924A (en) * 2017-12-26 2019-06-28 斯贝兰德工程技术（北京）有限公司 A kind of photovoltaic energy storage inversion power supply system
CN208489812U (en) * 2018-05-31 2019-02-12 上海嘉柒网络科技有限公司 A kind of solar energy roof BIPV photovoltaic power generation off-grid system

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Application publication date: 20200207