CN114172255B - Power supply system, power supply method, electronic equipment and storage medium - Google Patents

Power supply system, power supply method, electronic equipment and storage medium Download PDF

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Publication number
CN114172255B
CN114172255B CN202111506167.1A CN202111506167A CN114172255B CN 114172255 B CN114172255 B CN 114172255B CN 202111506167 A CN202111506167 A CN 202111506167A CN 114172255 B CN114172255 B CN 114172255B
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CN
China
Prior art keywords
power generation
generation device
photovoltaic power
storage module
energy storage
Prior art date
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Active
Application number
CN202111506167.1A
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Chinese (zh)
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CN114172255A (en
Inventor
詹培旋
李梦瑶
王彬
贾巨涛
宋德超
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Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Zhuhai Lianyun Technology Co Ltd
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Priority to CN202111506167.1A priority Critical patent/CN114172255B/en
Publication of CN114172255A publication Critical patent/CN114172255A/en
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Classifications

    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
    • H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
    • 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
    • H02J15/00—Systems for storing electric energy
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/003—Load forecast, e.g. methods or systems for forecasting future load demand
    • 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
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/007—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
    • H02J3/0075—Arrangements for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load and source according to economic or energy efficiency considerations, e.g. economic dispatch
    • 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
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • H02J7/0048—Detection of remaining charge capacity or state of charge [SOC]
    • 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
    • H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
    • 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
    • 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
    • H02J9/062—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 AC powered loads
    • H02J9/065—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 AC powered loads for lighting purposes
    • 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
    • H02J2310/00—The network for supplying or distributing electric power characterised by its spatial reach or by the load
    • H02J2310/10—The network having a local or delimited stationary reach
    • H02J2310/12—The local stationary network supplying a household or a building
    • H02J2310/14—The load or loads being home appliances
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • 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
    • Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • Y02B70/3225—Demand response systems, e.g. load shedding, peak shaving
    • 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
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • 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
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20—End-user application control systems
    • Y04S20/222—Demand response systems, e.g. load shedding, peak shaving

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Supply And Distribution Of Alternating Current (AREA)

Abstract

The application relates to a power supply system, a power supply method, electronic equipment and a storage medium, and belongs to the technical field of new energy sources. The power supply system comprises a first photovoltaic power generation device and at least one second photovoltaic power generation device; the second photovoltaic power generation device is connected to the first photovoltaic power generation device; the first photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy and supplying power for first load equipment; the second photovoltaic power generation device is used for converting the collected solar energy into electric energy and storing the electric energy and supplying power for second load equipment; the first photovoltaic power generation device is further used for distributing electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electric consumption of the first load equipment, the second predicted electric consumption of the second load equipment, the first electric consumption stored by the first photovoltaic power generation device and the second electric consumption stored by the second photovoltaic power generation device, so that the problem of electric quantity distribution of the photovoltaic power generation devices is solved, and user experience is improved.

Description

Power supply system, power supply method, electronic equipment and storage medium
Technical Field
The present application relates to the field of new energy technologies, and in particular, to a power supply system, a power supply method, an electronic device, and a storage medium.
Background
Along with the proposal of the concept of carbon neutralization, in order to abandon the environmental influence caused by the traditional power generation, more and more claims use solar power generation or wind power generation, the technical development of solar power generation is more and more mature so far, but in actual use of residents, the proportion is not high, the main problem is that solar power generation needs to have a certain area to collect solar energy, besides villas, few residents have enough area to give the area requirement of solar power generation, and smaller photovoltaic power generation devices cannot work cooperatively, so that the use of the photovoltaic power generation devices is limited.
Disclosure of Invention
In order to solve the technical problem of cooperative operation among photovoltaic power generation devices, the application provides a power supply system, a power supply method, electronic equipment and a storage medium.
In a first aspect, the present application provides a power supply system comprising a first photovoltaic power generation device and at least one second photovoltaic power generation device; the second photovoltaic power generation device is connected to the first photovoltaic power generation device;
The first photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for first load equipment;
the second photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for second load equipment;
the control device is configured to distribute electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on a first predicted electric power consumption of the first load device, a second predicted electric power consumption of the second load device, a first electric power stored by the first photovoltaic power generation device, and a second electric power stored by the second photovoltaic power generation device;
further, the power supply system includes a change-over switch;
the second photovoltaic power generation device is connected to the first photovoltaic power generation device through the change-over switch;
the control device is further used for controlling the change-over switch to be in a first state when the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, and controlling the change-over switch to be in a second state when the second electric quantity stored by the second photovoltaic power generation device is larger than or equal to the preset threshold value; when the change-over switch is in a first state, the electric energy converted by the second photovoltaic power generation device is stored in the second photovoltaic power generation device; when the change-over switch is in a second state, the electric energy converted by the second photovoltaic power generation device is stored in the first photovoltaic power generation device;
Further, the first photovoltaic power generation device includes: a first photovoltaic module and a first energy storage module; the control device comprises a first controller;
the first photovoltaic module is connected with the first energy storage module and used for converting collected solar energy into electric energy and transmitting the electric energy to the first energy storage module;
the output end of the first energy storage module is connected with the power supply input end of the first load equipment; the first controller is connected with the control end of the first energy storage module and is used for controlling the output end of the first energy storage module to supply power to the first load equipment;
the first controller is configured to distribute electric energy stored by the first energy storage module and the second photovoltaic power generation device based on a first predicted electric power consumption of the first load device, a second predicted electric power consumption of the second load device, a first electric power of the first energy storage module, and a second electric power stored by the second photovoltaic power generation device;
further, the second photovoltaic power generation device includes: a second photovoltaic assembly and a second energy storage module; the control device also comprises a second controller;
the second photovoltaic module is connected with the second energy storage module and is used for converting collected solar energy into electric energy and transmitting the electric energy to the second energy storage module or the first energy storage module;
The output end of the second energy storage module is connected with the power supply input end of the second load equipment; the second controller is connected with the control end of the second energy storage module and is used for controlling the output end of the second energy storage module to supply power to the second load equipment;
the public end of the change-over switch is connected with the output end of the second photovoltaic module; the first end of the change-over switch is connected with the input end of the second energy storage module; the second end of the change-over switch is connected with the input end of the first energy storage module; the control end of the change-over switch is connected with the second controller;
the second controller is configured to control the common terminal of the switch to be connected to the first terminal of the switch when the second electric quantity of the second energy storage module is less than a preset threshold; when the second electric quantity of the second energy storage module is larger than or equal to the preset threshold value, controlling the public end of the change-over switch to be connected with the second end of the change-over switch;
further, the first energy storage module is connected with the second energy storage module;
the first controller is configured to control the first energy storage module to allocate electric power to the second energy storage module when the first electric power is greater than the first predicted electric power consumption and the second electric power is less than the second predicted electric power consumption;
Or alternatively
The first controller is configured to control the first energy storage module to allocate electric power to the second energy storage module when the first electric power is smaller than the first predicted electric power consumption and the sum of the first electric power and the second electric power is larger than the second predicted electric power consumption;
further, the first load device is a first air conditioner, and the second load device is a second air conditioner;
further, the first photovoltaic module is arranged on the surface of the external machine of the first air conditioner; the second photovoltaic module is arranged on the surface of the external machine of the second air conditioner;
further, the first energy storage module is arranged in an external machine of the first air conditioner; the second energy storage module is arranged in an external machine of the second air conditioner.
In a second aspect, the present application provides a power supply method applied to the power supply system in any one of the first aspects, the method comprising:
acquiring a first predicted electricity consumption of a first load device, a second predicted electricity consumption of a second load device, a first electricity consumption stored by a first photovoltaic power generation device and a second electricity consumption stored by a second photovoltaic power generation device;
and distributing the electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electric power consumption of the first load device, the second predicted electric power consumption of the second load device, the first electric power stored by the first photovoltaic power generation device and the second electric power stored by the second photovoltaic power generation device.
In a third aspect, an electronic device is provided, including a processor, a communication interface, a memory, and a communication bus, where the processor, the communication interface, and the memory complete communication with each other through the communication bus;
a memory for storing a computer program;
and a processor for implementing the steps of the power supply method according to the second aspect when executing the program stored in the memory.
In a fourth aspect, a computer-readable storage medium is provided, on which a computer program is stored which, when being executed by a processor, implements the steps of the power supply method according to the second aspect.
Compared with the prior art, the technical scheme provided by the embodiment of the application has the following advantages:
the power supply system provided by the embodiment of the application comprises a first photovoltaic power generation device and at least one second photovoltaic power generation device; the second photovoltaic power generation device is connected to the first photovoltaic power generation device; the first photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for first load equipment; the second photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for second load equipment; the first photovoltaic power generation device is further configured to distribute electrical energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on a first predicted electrical power consumption of the first load device, a second predicted electrical power consumption of the second load device, a first electrical power stored by the first photovoltaic power generation device, and a second electrical power stored by the second photovoltaic power generation device. By using the power supply system, the electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device can be distributed in advance according to the predicted electricity consumption of the first load equipment and the second load equipment, the problem of cooperative operation between the photovoltaic power generation devices is solved, and the use efficiency of the electric energy is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
In order to more clearly illustrate the embodiments of the application or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to a person skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a power supply system according to an embodiment of the present application;
fig. 2 is a schematic structural diagram of another power supply system according to an embodiment of the present application;
fig. 3 is a schematic flow chart of a power supply method according to an embodiment of the present application;
FIG. 4 is a schematic diagram of another power supply method according to an embodiment of the present application;
FIG. 5 is a schematic diagram of another power supply method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
A first embodiment of the present application provides a power supply system, as shown in fig. 1, which includes a control device 100, a first photovoltaic power generation device 101, and at least one second photovoltaic power generation device 102; the second photovoltaic power generation device 102 is connected to the first photovoltaic power generation device 101; the control device 100 is connected to the first photovoltaic power generation device 101 and the second photovoltaic power generation device 102, respectively.
The first photovoltaic power generation device 101 is configured to convert collected solar energy into electrical energy and store the electrical energy, and to supply power to the first load apparatus 103;
the second photovoltaic power generation device 102 is configured to convert the collected solar energy into electrical energy and store the electrical energy, and to power the second load device 104;
the control device 100 is configured to distribute the electric energy stored in the first photovoltaic power generation device 101 and the second photovoltaic power generation device 102 between the first photovoltaic power generation device 101 and the second photovoltaic power generation device 102 based on the first predicted electric power consumption of the first load device, the second predicted electric power consumption of the second load device, the first electric power stored in the first photovoltaic power generation device, and the second electric power stored in the second photovoltaic power generation device.
In this embodiment, the second photovoltaic power generation device is connected to the first photovoltaic power generation device, and after solar energy that the second photovoltaic power generation device gathered is converted into electric energy, not only can store by oneself, can also store to the first photovoltaic power generation device, and controlling means can distribute the electric energy that first photovoltaic power generation device and second photovoltaic power generation device stored based on the prediction power consumption of first load equipment and second load equipment to and the first electric energy that first photovoltaic power generation device stored and the second electric energy that second photovoltaic power generation device stored. The distribution rule can be preset, the distribution is automatically carried out according to the distribution rule, the stored electric energy is distributed before the electricity consumption of the load equipment is realized, the electric energy can be distributed in advance by other photovoltaic power generation devices under the condition that the generated energy of a certain photovoltaic power generation device is small and the corresponding electricity consumption of the load equipment is large, the problem of cooperative operation among the photovoltaic power generation devices is solved, and the use efficiency of the electric energy generated by the photovoltaic power generation devices by a user is improved.
In one embodiment, as shown in FIG. 2, the power supply system includes a switch 220; the second photovoltaic power generation device is connected to the first photovoltaic power generation device through a change-over switch 220.
The control device is further used for controlling the change-over switch to be in a first state when the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, and controlling the change-over switch to be in a second state when the second electric quantity stored by the second photovoltaic power generation device is larger than or equal to the preset threshold value; when the change-over switch is in the first state, the electric energy converted by the second photovoltaic power generation device is stored in the second photovoltaic power generation device; when the change-over switch is in the second state, the electric energy converted by the second photovoltaic power generation device is stored in the first photovoltaic power generation device.
In this embodiment, the control device serves as a device for distributing electric power between the first photovoltaic power generation device and the second photovoltaic power generation device. When the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, the control device controls the change-over switch to be in a first state, namely the electric energy converted by the second photovoltaic power generation device is stored by the control device. And after the second electric quantity stored by the second photovoltaic power generation device is greater than or equal to a preset threshold value, the control device controls the change-over switch to be in a second state, namely, the electric energy reconverted by the second photovoltaic power generation device is stored in the first photovoltaic power generation device. The preset threshold value can be the minimum electric quantity for the second photovoltaic power generation device to maintain emergency operation of the second load equipment, for example, 10% of the total energy storage capacity of the second photovoltaic power generation device, when the electric quantity is lower than 10%, the generated electric quantity of the second photovoltaic power generation device is transmitted to an energy storage module of the second photovoltaic power generation device for storage through a change-over switch, and when the electric quantity is higher than or equal to 10%, the generated electric quantity is transmitted to the first photovoltaic power generation device for storage through the change-over switch, so that the control device can distribute the electric quantity according to the predicted electric quantity of each load equipment, the problem of cooperative operation among the photovoltaic power generation devices is solved, the situation that a user wants to use clean energy sources in a certain load equipment and the electric quantity stored by the corresponding photovoltaic power generation device is insufficient is avoided, the use efficiency of the photovoltaic power generation energy sources is improved, and popularization of the photovoltaic energy sources can be improved.
It should be noted that, the preset threshold value of 10% is merely illustrative, and the preset threshold value can be adjusted as required when in use.
In one embodiment, as shown in fig. 2, the first photovoltaic power generation apparatus includes: the first photovoltaic module 211 and the first energy storage module 212, and the control device includes a first controller 213.
The first photovoltaic module 211 is connected to the first energy storage module 212, and is configured to convert collected solar energy into electrical energy, and transmit the electrical energy to the first energy storage module 212. The output end of the first energy storage module 212 is connected with the power supply input end of the first load equipment 103; the first controller 213 is connected to a control terminal of the first energy storage module 212, and is configured to control an output terminal of the first energy storage module 212 to supply power to the first load device 103.
The first controller 213 is configured to distribute the electric energy stored by the first energy storage module 212 and the second photovoltaic power generation device 102 based on the first predicted electric power consumption of the first load device, the second predicted electric power consumption of the second load device, the first electric power of the first energy storage module, and the second electric power stored by the second photovoltaic power generation device.
The second photovoltaic power generation device includes: the second photovoltaic module 221 and the second energy storage module 222, and the control device further includes a second controller 223.
The second photovoltaic module 221 is connected to the second energy storage module 222, and is configured to convert the collected solar energy into electrical energy, and transmit the electrical energy to the second energy storage module 222 or the first energy storage module 212. The output end of the second energy storage module 222 is connected with the power supply input end of the second load device 104; the second controller 223 is connected to the control end of the second energy storage module 222, and is configured to control the output end of the second energy storage module 222 to supply power to the second load device 104.
The common end of the change-over switch 220 is connected with the output end of the second photovoltaic module 221; the first end of the switch 220 is connected with the input end of the second energy storage module 222; the second end of the change-over switch 220 is connected with the input end of the first energy storage module 212; the control terminal of the switch 220 is connected to the second controller 223.
The second controller 223 is configured to control the common terminal of the switch to connect to the first terminal of the switch (i.e. the switch is in the first state) when the second electric energy of the second energy storage module 222 is less than the preset threshold; when the second electric quantity of the second energy storage module is greater than or equal to a preset threshold value, the public end of the control switch is connected with the second end of the switch (namely, the switch is in a second state).
In this embodiment, in the power generation stage, the second controller controls the second photovoltaic module to store the electric quantity exceeding the preset threshold value of the second energy storage module to the first energy storage module through the change-over switch, and the first controller distributes the electric quantity in the first energy storage module and the second energy storage module. The first controller and the second controller may be separate control modules (multiple control modules form a control device), or may be different control ports of one control device.
Specifically, the first energy storage module is used for supplying power to the first load device in a preset time period, and the second energy storage module is used for supplying power to the second load device in the preset time period. The preset time period includes a peak electricity price time period or a time period when the utility power is in an abnormal state. The load equipment uses commercial power to supply power in the electricity price flat stage and the electricity price low stage, and photovoltaic power generation is used for electricity price peak time period, so that the electricity consumption cost of a user can be obviously reduced. Or when the mains supply is in an abnormal state such as power failure, the energy storage module is used for supplying power to the load equipment, and the load equipment is normally used, so that the experience of a user is improved.
In one embodiment, the first energy storage module is connected to the second energy storage module.
The first controller is used for controlling the first energy storage module to distribute the electric quantity to the second energy storage module when the first electric quantity is larger than the first predicted electric quantity and the second electric quantity is smaller than the second predicted electric quantity. Or the first controller is used for controlling the first energy storage module to distribute the electric quantity to the second energy storage module when the first electric quantity is smaller than the first predicted electric quantity and the sum of the first electric quantity and the second electric quantity is larger than the second predicted electric quantity.
In this embodiment, the first energy storage module is connected to the second energy storage module, and the electric quantity is distributed under the control of the first controller. The allocation rules may be: when the first electric quantity stored by the first energy storage module is larger than the predicted electric quantity used by the first load device and the second electric quantity stored by the second energy storage module is smaller than the predicted electric quantity used by the second load device (namely, when the electric quantity of the first energy storage module is enough for the first load device and the electric quantity of the second energy storage device is not enough for the second load device), the first energy storage module is controlled to distribute the electric quantity to the second energy storage module.
Alternatively, the allocation rule may be: the first electric quantity stored by the first energy storage module is smaller than the predicted electric quantity of the first load device, (at this time, because the second energy storage module fully transmits the electric quantity which is higher than or equal to the preset threshold value to the first energy storage module, the electric quantity of the default second energy storage module is not enough for the second load device to use), and when the sum of the first electric quantity of the first energy storage module and the second electric quantity of the second energy storage module is larger than the second predicted electric quantity of the second load device (namely, the electric quantity of the first energy storage module is not enough for the first load device to use, but the total electric quantity of the first energy storage module and the second energy storage module is enough for the second load device to use), the first energy storage module is controlled to distribute the electric quantity to the second energy storage module so as to support the normal use of the second load device.
It should be noted that, the allocation rule is illustrated here, and not only represents the two electric quantity allocation modes, but also the actual allocation rule can be set according to the requirement of the user.
In one embodiment, the first load device is a first air conditioner and the second load device is a second air conditioner.
In this embodiment, the load devices may be air conditioners, specifically, the first air conditioner may be a cabinet air conditioner, the second air conditioner may be a hanging air conditioner, the power of the cabinet air conditioner is larger, and the outer machine and the inner machine are also larger, so that the first air conditioner is set.
In one embodiment, the first photovoltaic module is disposed on an exterior surface of the first air conditioner, and the second photovoltaic module is disposed on an exterior surface of the second air conditioner.
In this embodiment, photovoltaic module sets up in the outer quick-witted surface of air conditioner, has solved town resident family and has not had sufficient area to carry out solar power generation's demand, utilizes the photovoltaic module of the outer quick-witted surface mounting adaptation of idle air conditioner, gathers clean energy, can save the charges of electricity expenditure, can have emergency power source to use under the emergency again, improves user experience.
In one embodiment, the first energy storage module is disposed inside an external unit of the first air conditioner, and the second energy storage module is disposed inside an external unit of the second air conditioner.
In this embodiment, the energy storage module sets up in the outer machine inside of air conditioner, utilizes the shell of outer machine can avoid energy storage module sun-shine rain to drench, improves life.
In one embodiment, the control device may include a first controller and a second controller corresponding to the number of the second air conditioners, the first controller may be disposed inside the cabinet air conditioner, and the second controller may be disposed inside the hanging air conditioner. Specifically, the first controller may be integrated to a controller of the cabinet air conditioner and a first control port is reserved, and the second controller may be integrated to a controller of the hanging air conditioner and a second control port is reserved. The first control port is used for distributing electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electric consumption of the first load equipment, the second predicted electric consumption of the second load equipment, the first electric consumption stored by the first photovoltaic power generation device and the second electric consumption stored by the second photovoltaic power generation device. The second control port is used for controlling the change-over switch to be in a first state when the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, and controlling the change-over switch to be in a second state when the second electric quantity stored by the second photovoltaic power generation device is larger than or equal to the preset threshold value.
In one embodiment, the first energy storage module may further set an emergency threshold in a use process, and when the remaining power of the first energy storage module is lower than the emergency threshold, the output of the power is stopped, and the first load device is switched to the mains supply to supply power. The emergency threshold may be set to a low level, such as 5%, in order to provide emergency lighting through an emergency interface reserved for the energy storage module in case of an emergency demand, such as a mains outage. It should be noted that, the emergency threshold may be set according to needs, and 5% herein is only illustrated, and is not represented by setting only 5%, but also may be other values, and the second energy storage module may also set the emergency threshold, which is not described again.
The first photovoltaic power generation device further comprises a first inverter, and the second photovoltaic power generation device further comprises a second inverter. The first energy storage module is connected with first load equipment through a first inverter, and the second energy storage module is connected with second load equipment through a second inverter.
Specifically, the first inverter and the second inverter can be intensively arranged to one inverter supporting multiple groups of input and output, so that the maintenance is convenient and the cost is reduced.
Based on the same technical concept, a second embodiment of the present application provides a power supply method, which is applied to any one of the power supply systems described in the first embodiment, as shown in fig. 3, where the method includes:
Step 301, obtaining a first predicted power consumption of a first load device, a second predicted power consumption of a second load device, a first power consumption stored by a first photovoltaic power generation device, and a second power consumption stored by a second photovoltaic power generation device;
in step 302, the electrical energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device is distributed between the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electrical power consumption of the first load device, the second predicted electrical power consumption of the second load device, the first electrical power stored by the first photovoltaic power generation device, and the second electrical power stored by the second photovoltaic power generation device.
By using the power supply method provided by the embodiment, the control device distributes the electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device before the load equipment is powered on, and under the condition that the generated energy of one photovoltaic power generation device is small and the corresponding power consumption of the load equipment is large, the electric energy can be distributed in advance by other photovoltaic power generation devices, so that the problem of cooperative operation among the photovoltaic power generation devices is solved, and the use efficiency of the electric energy when a user uses the photovoltaic power generation device is improved.
In one embodiment, the power supply system includes a diverter switch. The control device is further used for controlling the change-over switch to be in a first state when the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, and controlling the change-over switch to be in a second state when the second electric quantity stored by the second photovoltaic power generation device is larger than or equal to the preset threshold value; when the change-over switch is in the first state, the electric energy converted by the second photovoltaic power generation device is stored in the second photovoltaic power generation device; when the change-over switch is in the second state, the electric energy converted by the second photovoltaic power generation device is stored in the first photovoltaic power generation device.
In one embodiment, a first photovoltaic power generation device includes: the photovoltaic module comprises a first photovoltaic module and a first energy storage module. The second photovoltaic power generation device includes: the second photovoltaic module and the second energy storage module. The control device comprises a first controller and a second controller.
The first controller is used for distributing the electric energy stored by the first energy storage module and the second energy storage module based on the first predicted electric consumption of the first load device, the second predicted electric consumption of the second load device, the first electric consumption of the first energy storage module and the second electric consumption of the second energy storage module.
The second controller is configured to control the common terminal of the switch to be connected to the first terminal of the switch (i.e., the switch is in a first state) when the second electric quantity of the second energy storage module is less than a preset threshold; when the second electric quantity of the second energy storage module is greater than or equal to a preset threshold value, the public end of the control switch is connected with the second end of the switch (namely, the switch is in a second state).
In this embodiment, the first controller distributes the electric energy stored in the energy storage module according to the predicted power consumption of each load device and the current electric quantity of each energy storage module (the first electric quantity of the first energy storage module is the current electric quantity of the first energy storage module, and the second electric quantity of the second energy storage module is the current electric quantity of the second energy storage module), so that under the condition that the generated energy of a certain photovoltaic module is less and the corresponding power consumption of the load device is large, the first controller can distribute the electric energy in advance, thereby solving the problem of collaborative operation between photovoltaic power generation devices. The second controller can realize that when the second electric quantity of the second energy storage module is smaller than a preset threshold value, the electricity generated by the second photovoltaic module is output to the second energy storage module through the first end of the switch for storage, and when the second electric quantity of the second energy storage module is larger than or equal to the preset threshold value, the electricity generated by the second photovoltaic module is output to the first energy storage module through the second end of the switch for storage, so that the first energy storage module distributes the electric quantity.
In one embodiment, a first load device is included, and three second load devices are illustrated as shown in fig. 4, where the first load device is a cabinet air conditioner, and the second load device is a hanging air conditioner, and the power supply method includes:
and 401, distributing solar panels on four air conditioner external units.
In step 402, the generated electricity is stored in a battery installed outside the cabinet.
Step 403, according to the statistics of the historical data, different amounts of electricity are delivered to different air conditioner indoor units.
According to the power supply method, appropriate electric quantity is distributed to different air conditioners according to historical data statistics so as to be used by each air conditioner, the requirement of each air conditioner on using the air conditioner in a preset time period can be met, and user experience is improved. It should be noted that, the present embodiment is illustrated with three second load devices (that is, three second energy storage modules), and the second load devices may be any number including at least one, that is, the second load devices and the second energy storage modules may be the same in number, and may be set to any number.
In one embodiment, as shown in fig. 5, the process of obtaining the predicted power consumption of the peak electricity consumption period includes:
Step 501, obtaining the electricity consumption of each air conditioner in each period.
Step 502, it is determined whether the peak power consumption period is high, if yes, step 503 is executed, and if no, step 504 is executed.
Step 503, calculating the amount of electricity used in the period.
In step 504, the amount of power supplied by the utility power during the period is not calculated.
And acquiring the electricity consumption of each air conditioner in each period through historical data statistics, if the electricity consumption is in a peak period, calculating the electricity consumption used in the period, if the electricity consumption is not in the peak period, using the mains supply in the period, and not calculating the period, and calculating the relatively accurate predicted electricity consumption by screening the historical data so as to be convenient for accurately distributing the electricity.
In one embodiment, for example, three hanging machines and a cabinet machine are taken as an example, a battery is arranged in each air conditioner, electric energy is stored in each air conditioner, the surface of each air conditioner is an idle area, and a solar panel can be arranged. The advantage of doing this is that if the outer machine of each air conditioner only transmits electric energy to the inner machine, partial outer machines can be insufficient in sunlight and insufficient in electric energy. And through centralized conversion of electric energy, the electric energy is distributed and transmitted to the batteries of the air conditioners according to the electricity consumption conditions of the air conditioners so as to be used in the peak electricity consumption period.
The solar energy power supply system is used in a peak power consumption period, and the power supply quantity of solar energy is not supposed to completely meet the power supply of a whole house, and the power supply in the power consumption peak period is mainly provided for the power storage of solar energy, so that the power charge is relatively expensive in the period, and a part of power consumption expenditure can be saved for users.
The calculation of the electricity consumption of the air conditioner is that the electricity consumption of the air conditioner is different according to seasons and electricity consumption time periods, so that the fixed data can lead to inaccurate data, the electricity consumption of each air conditioner in the current peak period of the electricity consumption can be calculated by using a time sequence model, and enough electricity is transmitted from the total battery of the cabinet machine to the battery of the corresponding on-hook air conditioner.
When the electricity in the total battery is insufficient to support the condition that each air conditioner supplies power, the air conditioner uses the mains supply to supply power.
Among them, time series analysis is one of quantitative prediction methods. It includes general statistical analysis (such as autocorrelation analysis, spectrum analysis, etc.), establishment and inference of statistical model, and optimum prediction, control and filtering about time sequence. Classical statistical analysis assumes independence of the data sequences, whereas time series analysis focuses on studying the interdependence of the data sequences. The latter is in fact a statistical analysis of the random process of discrete indicators and can therefore be regarded as an integral part of the random process statistics. For example, the rainfall of the first month, the second month, … and the nth month in a certain area is recorded, and the rainfall of each month in the future can be predicted by using a time sequence analysis method.
The basic idea of time series analysis is to build a mathematical model that can reflect the dynamic dependencies contained in the sequence relatively accurately from a running record (observation data) of a finite length of the system, and thereby forecast the future of the system.
The basic principle of time series analysis is to estimate the development trend of things by recognizing the continuity of the development of things and applying past data; secondly, considering the randomness of the object development, any object development may be affected by accidental factors, and for this purpose, historical data is processed by using a weighted average method in statistical analysis.
The predicted electricity consumption of each load device can be accurately predicted by using time sequence analysis, the accuracy of electricity distribution is improved, and the user experience is improved.
As shown in fig. 6, a third embodiment of the present application provides an electronic device including a processor 111, a communication interface 112, a memory 113, and a communication bus 114, wherein the processor 111, the communication interface 112, the memory 113 perform communication with each other through the communication bus 114,
a memory 113 for storing a computer program;
in one embodiment of the present application, the processor 111 is configured to implement the power supply method provided in the foregoing method embodiment when executing the program stored in the memory 113, and includes:
Acquiring a first predicted electricity consumption of a first load device, a second predicted electricity consumption of a second load device, a first electricity consumption stored by a first photovoltaic power generation device and a second electricity consumption stored by a second photovoltaic power generation device;
and distributing the electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electric power consumption of the first load device, the second predicted electric power consumption of the second load device, the first electric power stored by the first photovoltaic power generation device and the second electric power stored by the second photovoltaic power generation device.
The communication bus mentioned by the above terminal may be a peripheral component interconnect standard (Peripheral Component Interconnect, abbreviated as PCI) bus or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated as EISA) bus, etc. The communication bus may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, the figures are shown with only one bold line, but not with only one bus or one type of bus.
The communication interface is used for communication between the terminal and other devices.
The memory may include random access memory (Random Access Memory, RAM) or non-volatile memory (non-volatile memory), such as at least one disk memory. Optionally, the memory may also be at least one memory device located remotely from the aforementioned processor.
The processor may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processing, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
The fourth embodiment of the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the power supply method as provided by the foregoing method embodiments.
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, by wired (e.g., coaxial cable, optical fiber, digital Subscriber Line (DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid State Disk (SSD)), etc.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a specific embodiment of the invention to enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A power supply system, characterized in that the power supply system comprises a control device, a first photovoltaic power generation device and at least one second photovoltaic power generation device; the second photovoltaic power generation device is connected to the first photovoltaic power generation device;
the first photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for first load equipment;
the second photovoltaic power generation device is used for converting collected solar energy into electric energy and storing the electric energy, and is used for supplying power for second load equipment;
the control device is configured to distribute electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on a first predicted electric power consumption of the first load device, a second predicted electric power consumption of the second load device, a first electric power stored by the first photovoltaic power generation device, and a second electric power stored by the second photovoltaic power generation device;
wherein the power supply system comprises a change-over switch;
the second photovoltaic power generation device is connected to the first photovoltaic power generation device through the change-over switch;
the control device is further used for controlling the change-over switch to be in a first state when the second electric quantity stored by the second photovoltaic power generation device is smaller than a preset threshold value, and controlling the change-over switch to be in a second state when the second electric quantity stored by the second photovoltaic power generation device is larger than or equal to the preset threshold value; when the change-over switch is in a first state, the electric energy converted by the second photovoltaic power generation device is stored in the second photovoltaic power generation device; and when the change-over switch is in a second state, the electric energy converted by the second photovoltaic power generation device is stored into the first photovoltaic power generation device.
2. The power supply system of claim 1, wherein the first photovoltaic power generation device comprises: a first photovoltaic module and a first energy storage module; the control device comprises a first controller;
the first photovoltaic module is connected with the first energy storage module and used for converting collected solar energy into electric energy and transmitting the electric energy to the first energy storage module;
the output end of the first energy storage module is connected with the power supply input end of the first load equipment; the first controller is connected with the control end of the first energy storage module and is used for controlling the output end of the first energy storage module to supply power to the first load equipment;
the first controller is configured to distribute electrical energy stored by the first energy storage module and the second photovoltaic power generation device based on a first predicted electrical consumption of the first load device, a second predicted electrical consumption of the second load device, a first electrical consumption of the first energy storage module, and a second electrical consumption stored by the second photovoltaic power generation device.
3. The power supply system of claim 2, wherein the second photovoltaic power generation device comprises: a second photovoltaic assembly and a second energy storage module; the control device also comprises a second controller;
The second photovoltaic module is connected with the second energy storage module and is used for converting collected solar energy into electric energy and transmitting the electric energy to the second energy storage module or the first energy storage module;
the output end of the second energy storage module is connected with the power supply input end of the second load equipment; the second controller is connected with the control end of the second energy storage module and is used for controlling the output end of the second energy storage module to supply power to the second load equipment;
the public end of the change-over switch is connected with the output end of the second photovoltaic module; the first end of the change-over switch is connected with the input end of the second energy storage module; the second end of the change-over switch is connected with the input end of the first energy storage module; the control end of the change-over switch is connected with the second controller;
the second controller is configured to control the common terminal of the switch to be connected to the first terminal of the switch when the second electric quantity of the second energy storage module is less than a preset threshold; and when the second electric quantity of the second energy storage module is larger than or equal to the preset threshold value, controlling the public end of the change-over switch to be connected with the second end of the change-over switch.
4. The power supply system of claim 3, wherein the first energy storage module is coupled to the second energy storage module;
the first controller is configured to control the first energy storage module to allocate electric power to the second energy storage module when the first electric power is greater than the first predicted electric power consumption and the second electric power is less than the second predicted electric power consumption;
or alternatively
The first controller is configured to control the first energy storage module to allocate electric power to the second energy storage module when the first electric power is smaller than the first predicted electric power consumption and the sum of the first electric power and the second electric power is larger than the second predicted electric power consumption.
5. A power supply system according to claim 3, wherein the first load device is a first air conditioner and the second load device is a second air conditioner.
6. The power supply system of claim 5, wherein the first photovoltaic module is disposed on an exterior surface of the first air conditioner; the second photovoltaic module is arranged on the surface of the external machine of the second air conditioner.
7. The power supply system of claim 5, wherein the first energy storage module is disposed inside an external machine of the first air conditioner; the second energy storage module is arranged in an external machine of the second air conditioner.
8. A power supply method applied to the power supply system according to any one of claims 1 to 7, the method comprising:
acquiring a first predicted electricity consumption of a first load device, a second predicted electricity consumption of a second load device, a first electricity consumption stored by a first photovoltaic power generation device and a second electricity consumption stored by a second photovoltaic power generation device;
and distributing the electric energy stored by the first photovoltaic power generation device and the second photovoltaic power generation device between the first photovoltaic power generation device and the second photovoltaic power generation device based on the first predicted electric power consumption of the first load device, the second predicted electric power consumption of the second load device, the first electric power stored by the first photovoltaic power generation device and the second electric power stored by the second photovoltaic power generation device.
9. The electronic equipment is characterized by comprising a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory are communicated with each other through the communication bus;
a memory for storing a computer program;
a processor for implementing the steps of the power supply method of claim 8 when executing a program stored on a memory.
10. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the power supply method according to claim 8.
CN202111506167.1A 2021-12-10 2021-12-10 Power supply system, power supply method, electronic equipment and storage medium Active CN114172255B (en)

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