Community distributed wind-solar hybrid energy system

Abstract

The invention relates to the technical field of power supply, and discloses a community distributed wind-solar hybrid energy system, which comprises a controller and a plurality of first energy storage batteries for providing electrical loads for electrical loads of household users in one-to-one correspondence, and is characterized in that each household user is provided with a wind-solar hybrid power generation device; the first output end of each wind-solar hybrid power generation device is electrically connected with the corresponding first energy storage battery, the second output end of each wind-solar hybrid power generation device is electrically connected with a power distribution main switch, and the output end of the power distribution main switch is electrically connected with the corresponding number of other household users through a plurality of power transmission branches; the controller is used for acquiring the energy storage capacity of the first energy storage batteries, comparing the energy storage capacity of each first energy storage battery with a first standard energy storage capacity, and controlling the power distribution main switch corresponding to the current first energy storage battery to be closed if the energy storage capacity of the current first energy storage battery is greater than the first standard energy storage capacity; according to the invention, the electric power of each family user in a remote village can be shared.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply, and in particular to a community distributed wind-solar hybrid energy system. Background Art

[0002] Remote villages located in mountainous areas, islands, desert edges, etc., far away from urban centers, are limited by insufficient grid support capacity, unstable power supply and prone to power outages. In order to meet the electricity needs of remote villages, photovoltaic and wind power storage systems are usually installed in remote village households to provide power for remote village households. However, due to the influence of different geographical locations, some household users have sufficient photovoltaic and wind power generation to meet their own needs and have surplus, while some household users have insufficient photovoltaic and wind power generation to meet their own needs, and electricity cannot be shared between different household users. Therefore, there is an urgent need for a wind-solar hybrid system that can enable electricity to be shared by household users in remote villages. Summary of the invention

[0003] In view of this, the present invention provides a community distributed wind-solar hybrid energy system to solve the problem of the existing lack of a wind-solar hybrid system that can enable electricity to be shared by household users in remote villages.

[0004] The present invention provides a community distributed wind-solar hybrid energy system, which is applied to remote villages in an off-grid environment. The remote villages include multiple household users. The community distributed wind-solar hybrid energy system includes:

[0005] A plurality of first energy storage batteries are arranged in one-to-one correspondence with the household users, and the plurality of first energy storage batteries respectively provide power loads for the corresponding household users;

[0006] A plurality of wind-solar hybrid power generation devices, wherein the first output end of each of the wind-solar hybrid power generation devices is electrically connected to the corresponding first energy storage battery, and the second output end of each of the wind-solar hybrid power generation devices is electrically connected to a main distribution switch, and the output end of the main distribution switch is electrically connected to a corresponding number of other household users through a plurality of transmission branches; each of the transmission branches is provided with an electric meter, and the electric meter is provided with a first switch;

[0007] The controller is used to obtain the energy storage capacity of the first energy storage battery, and compare the energy storage capacity of each of the first energy storage batteries with the first standard energy storage capacity. If the current energy storage capacity of the first energy storage battery is greater than the first standard energy storage capacity, the main distribution switch corresponding to the current first energy storage battery is controlled to be closed. The controller is also used to obtain the electricity purchase data of other household users and the electricity consumption of the electric meters of other household users, and control the first switch to be closed and opened according to the electricity purchase data and the electricity consumption of the electric meter.

[0008] A community distributed wind-solar hybrid energy system according to the present invention has at least the following beneficial effects:

[0009] A wind-solar hybrid power generation device is provided in a one-to-one correspondence with each household user, the first output end of each wind-solar hybrid power generation device is electrically connected to the first energy storage battery of the corresponding household user, and the second output end is electrically connected to a main distribution switch, and the output end of each main distribution switch is electrically connected to other household users except the current household user through multiple transmission branches; during the power supply process, the controller obtains the energy storage capacity of each first energy storage battery in real time, and compares the energy storage capacity of each first energy storage battery with the first standard energy storage capacity. If the energy storage capacity of the current first energy storage battery is greater than the first standard energy storage capacity, the main distribution switch corresponding to the current first energy storage battery is controlled to be closed, so that the main distribution switch and the corresponding transmission branch electrically connected to the same wind-solar hybrid power generation device as the current first energy storage battery form a closed loop. At this time, the wind-solar hybrid power generation device electrically connected to the current first energy storage battery can form a loop with the power loads of other household users, and the controller obtains the power purchase data of other household users. Then, the first switch is controlled to be closed, so that the wind-solar hybrid power generation device electrically connected to the current first energy storage battery and the power loads of other household users who send power purchase data form a closed loop, and the power generated by the wind-solar hybrid power generation device electrically connected to the current first energy storage battery is transmitted to the other household users who send the power purchase data for use; at the same time, when the power consumption measured by the meter on the transmission branch electrically connected to the other household users who send the power purchase data is equal to the power purchase data, the loop formed by the wind-solar hybrid power generation device electrically connected to the current first energy storage battery and the power loads of other household users who send the power purchase data is disconnected; on the basis of the power generated by the wind-solar hybrid power generation device corresponding to the current household user meeting self-use, the excess power generated by the wind-solar hybrid power generation device corresponding to the current household user is shared with other household users whose power generation does not meet self-use according to the power purchase data sent by other household users because the power generated by the corresponding wind-solar hybrid power generation device does not meet self-use, so as to maintain the balance of power supply.

[0010] In an optional embodiment, it also includes a billing cloud platform, which is communicatively connected to the controller; the billing cloud platform receives electricity purchase requests sent by other household users, and returns payment information to other household users in response to the electricity purchase requests, and generates the electricity purchase data after confirming the payment of other household users.

[0011] In an optional embodiment, the billing cloud platform also receives a stop-sale request from the current household user, and changes the electricity selling transaction status of the current household user from a selling status to a stop-sale status in response to the stop-sale request. After generating the electricity purchasing data, the billing cloud platform sends the electricity purchasing data to the current household user whose electricity selling transaction status is a selling status.

[0012] In an optional implementation, a second energy storage battery is provided between the second output end of each wind-solar hybrid power generation device and the corresponding power distribution main switch.

[0013] In an optional embodiment, the second output end of each of the wind-solar hybrid power generation devices is provided with a second switch; if the current energy storage capacity of the first energy storage battery is greater than the first standard energy storage capacity, the controller is also used to control the second switch of the wind-solar hybrid power generation device corresponding to the current first energy storage battery to close.

[0014] In an optional embodiment, the wind-solar hybrid power generation equipment includes a wind power generation component and a photovoltaic power generation component, and the first output end of the wind power generation component and the first output end of the photovoltaic power generation component are respectively electrically connected to the corresponding first energy storage battery; the second output end of the wind power generation component and the second output end of the photovoltaic power generation component are both electrically connected to the corresponding second energy storage battery.

[0015] In an optional implementation, the third output end of the wind power generation component and the third output end of the photovoltaic power generation component are both electrically connected to the power load of the corresponding household user.

[0016] In an optional implementation, the controller is further configured to:

[0017] Obtaining the power generation of the wind power generation component, the power generation of the photovoltaic power generation component, and the power load of the household user;

[0018] When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, the wind power generation component is controlled to charge the first energy storage battery with the generated power;

[0019] When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, and the current energy storage capacity of the first energy storage battery is greater than the first standard energy storage capacity, the wind power generation component is controlled to charge the second energy storage battery with the generated power;

[0020] When the power generation of the photovoltaic power generation component does not meet the power load of the corresponding household user, and the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component exceeds the power load of the corresponding household user, the photovoltaic power generation component and the wind power generation component are controlled to charge the first energy storage battery with the surplus power generated; and the energy storage capacity of the first energy storage battery is obtained in real time, and when the current energy storage capacity of the first energy storage battery is greater than the first standard energy storage capacity, the photovoltaic power generation component and the wind power generation component are controlled to charge the second energy storage battery with the surplus power generated;

[0021] When the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component does not meet the power load of the corresponding household user, and the energy storage capacity of the first energy storage battery is greater than the minimum capacity, the photovoltaic power generation component, the wind power generation component and the first energy storage battery are controlled to jointly provide the power load for the corresponding household user's power load. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a structural block diagram of a community distributed wind-solar hybrid energy system according to an embodiment of the present invention.

[0024] Description of reference numerals:

[0025] 100-first energy storage battery, 200-wind-solar hybrid power generation equipment, 210-second switch, 300-main distribution switch, 410-electricity meter, 420-first switch, 500-controller, 600-billing cloud platform, 700-second energy storage battery. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0027] In the description of this embodiment, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this embodiment and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting this embodiment. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of this embodiment, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0029] Combine the following Figure 1 , describing an embodiment of the present invention.

[0030] According to an embodiment of the present invention, a community distributed wind-solar hybrid energy system is provided, which is applied to remote villages in off-grid environments, and the remote villages include multiple household users; the community distributed wind-solar hybrid energy system includes a controller 500 and multiple first energy storage batteries 100 corresponding to the household users, and the multiple first energy storage batteries 100 respectively provide power loads for the power loads of the corresponding household users; each of the household users is provided with a wind-solar hybrid power generation device 200, and the first output end of each of the wind-solar hybrid power generation devices 200 is electrically connected to the corresponding first energy storage battery 100, and the second output end of each of the wind-solar hybrid power generation devices 200 is electrically connected to a distribution main switch 300, and the output end of the distribution main switch 300 is connected through multiple input The electric branches are electrically connected to a corresponding number of other household users respectively; each of the transmission branches is provided with an electric meter 410, and a first switch 420 is provided in the electric meter 410; the controller 500 is used to obtain the energy storage capacity of the first energy storage battery 100, and compare the energy storage capacity of each of the first energy storage batteries 100 with the first standard energy storage capacity. If the current energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity, the main distribution switch 300 corresponding to the current first energy storage battery 100 is controlled to be closed. The controller 500 is also used to obtain the power purchase data of other household users and the power consumption of the electric meter 410 of other household users, and control the first switch 420 to be closed and opened according to the power purchase data and the power consumption of the electric meter 410.

[0031] The community distributed wind-solar hybrid energy system of this embodiment is provided with a wind-solar hybrid power generation device 200 corresponding to each household user, the first output end of each wind-solar hybrid power generation device 200 is electrically connected to the first energy storage battery 100 of the corresponding household user, and the second output end is electrically connected to a distribution main switch 300, and the output end of each distribution main switch 300 is electrically connected to other household users except the current household user through multiple transmission branches; during the power supply process, the controller 500 obtains the energy storage capacity of each first energy storage battery 100 in real time, and The energy storage capacity of each first energy storage battery 100 is compared with the first standard energy storage capacity. If the energy storage capacity of the current first energy storage battery 100 is greater than the first standard energy storage capacity, the main distribution switch 300 corresponding to the current first energy storage battery 100 is controlled to be closed, so that the main distribution switch 300 and the corresponding power transmission branch that are electrically connected to the same wind-solar hybrid power generation device 200 as the current first energy storage battery 100 form a closed loop. At this time, the wind-solar hybrid power generation device 200 electrically connected to the current first energy storage battery 100 can form a loop with the power loads of other household users, and under the control After the controller 500 obtains the power purchase data of other household users, it controls the first switch 420 to close, so that the wind-solar hybrid power generation device 200 electrically connected to the current first energy storage battery 100 and the power load of other household users who send the power purchase data form a closed loop, and the power generated by the wind-solar hybrid power generation device 200 electrically connected to the current first energy storage battery 100 is transmitted to the other household users who send the power purchase data for use; at the same time, when the power consumption measured by the electric meter 410 located on the transmission branch electrically connected to the other household users who send the power purchase data is equal to the power purchase data, , disconnect the loop formed by the power loads of the wind-solar hybrid power generation device 200 electrically connected to the current first energy storage battery 100 and other household users who send power purchase data; realize that the power generated by the wind-solar hybrid power generation device 200 corresponding to the current household user is sufficient for self-use, and based on the power purchase data sent by other household users because the power generated by the corresponding wind-solar hybrid power generation device 200 does not meet the self-use, the excess power generated by the wind-solar hybrid power generation device 200 corresponding to the current household user is shared with other household users whose power generation does not meet their own use, so as to maintain the balance of power supply.

[0032] It should be noted that during the operation of the system, it will be determined in turn whether the energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity. The current first energy storage battery 100 is the first energy storage battery 100 that is undergoing energy storage capacity determination; the household user corresponding to the current first energy storage battery 100 is the current household user; and other household users refer to household users in remote villages other than the current household user.

[0033] It should be noted that when the first switch 420 of the electric meter 410 is disconnected, the power consumption measured by the electric meter 410 is reset to zero; and when the first switch 420 of the electric meter 410 is closed again, the power consumption is accumulated from zero.

[0034] It can be understood that the first standard energy storage capacity refers to the energy storage capacity of the first energy storage battery 100 that can meet the needs of providing the required power load for normal use of the power load of the corresponding household user.

[0035] It can be understood that the remote villages to which the present embodiment is applied are located in areas rich in solar and wind energy resources, and wind-solar hybrid power generation can be carried out basically all year round; and because the geographical locations of the various household users in the remote villages are different, the amount of electricity generated by the solar and wind energy used by the wind-solar hybrid power generation equipment 200 of each household user is different, so that some household users in the remote villages have sufficient photovoltaic and wind power generation to meet their own use and have surplus, while some household users have insufficient photovoltaic and wind power generation to meet their own use.

[0036] In some embodiments, the community distributed wind-solar hybrid energy system also includes a billing cloud platform 600, which is communicatively connected to the controller 500; the billing cloud platform 600 receives electricity purchase requests sent by other household users, and returns payment information to other household users in response to the electricity purchase requests, and generates the electricity purchase data after confirming the payment of other household users. Other household users whose power generation cannot meet their own needs can log in to the billing cloud platform 600 through a mobile phone or computer, and send a power purchase request to the billing cloud platform 600 according to the amount of electricity they need to supplement. After making the corresponding payment, the controller 500 controls the distribution main switch 300 and the corresponding transmission branch connected to the wind-solar hybrid power generation equipment 200 whose power generation meets the current household user's self-use and has surplus power to form a closed loop according to the power purchase data, and transmits the surplus power generated by the wind-solar hybrid power generation equipment 200 whose power generation meets the current household user's self-use and has surplus power to other household users whose power generation cannot meet their own use and who have sent a power purchase request and completed the payment; the surplus power generated by the wind-solar hybrid power generation equipment 200 corresponding to the current household user is shared with other household users whose power generation does not meet their own use, and then the electricity is sold across the wall, thereby increasing income for the current household user and promoting direct electricity trading.

[0037] It can be understood that the main distribution switch 300 of each household user is numbered in the billing cloud platform 600. When the power generation of the wind-solar hybrid power generation equipment 200 of the household user meets the power demand of the corresponding household user's power load and there is surplus power, the state of the corresponding numbered main distribution switch 300 in the billing cloud platform 600 is an optional state, so that other household users whose power generation cannot meet their own needs can select the main distribution switch 300 in the optional state and send a purchase request when logging into the billing cloud platform 600, so that the controller 500 controls the selected main distribution switch 300. The main distribution switch 300 is electrically connected and the first switch 420 in the electric meter 410 located on the transmission branch corresponding to other household users who send electricity purchase requests is closed, so that the excess electricity generated by the wind-solar hybrid power generation equipment 200 of the current household user corresponding to the current first energy storage battery 100 is transmitted to other household users whose power generation cannot meet their own needs and who send electricity purchase requests and complete payment; at the same time, the payment amount of other household users who send electricity purchase requests is transferred to the account of the current household user corresponding to the selected main distribution switch 300, realizing wall-to-wall electricity sales.

[0038] It can be understood that the current household user corresponding to the current first energy storage battery 100 can log in to the billing cloud platform 600, set the electricity selling price of the corresponding numbered main distribution switch 300 to the electricity selling price expected by the household user and display it on the page of the billing cloud platform 600.

[0039] Specifically, the billing cloud platform 600 also receives the current household user's request to stop selling, and responds to the request to stop selling to change the current household user's electricity selling transaction status from the selling state to the stop selling state. After generating the electricity purchase data, the billing cloud platform 600 sends the electricity purchase data to the current household user whose electricity selling transaction status is the selling state. The current household user corresponding to the current first energy storage battery 100 can log in to the billing cloud platform 600 to change the electricity selling transaction status of the corresponding numbered distribution main switch 300 to ensure that without the consent of the current household user, even if the power generation of the current household user's wind-solar hybrid power generation device 200 meets self-use, the excess power cannot be forced to be traded.

[0040] In some embodiments, a second energy storage battery 700 is provided between the second output terminal of each wind-solar hybrid power generation device 200 and the corresponding main power distribution switch 300. This arrangement allows the wind-solar hybrid power generation device 200 electrically connected to the current first energy storage battery 100 to charge the second energy storage battery 700 with excess power beyond the power demand of the corresponding current household user; and avoids the inability to effectively store and utilize the excess power generated when the controller 500 does not obtain the power purchase data of other household users. It is understandable that when the controller 500 obtains the power purchase data of other household users, the second energy storage battery 700 corresponding to the current household user is in a discharging state, and the excess power is shared with other household users whose power generation does not meet their own needs and who have issued a power purchase request.

[0041] Specifically, the second output end of each wind-solar hybrid power generation device 200 is provided with a second switch 210, and the second switch 210 is used to control the on-off of the circuit between the wind-solar hybrid power generation device 200 and the corresponding second energy storage battery 700; if the current energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity, the controller 500 is also used to control the closing of the second switch 210 of the wind-solar hybrid power generation device 200 corresponding to the current first energy storage battery 100. In this way, the electricity generated by the wind-solar hybrid power generation device 200 is used to charge the first energy storage battery 100 first, and the surplus electricity is used to charge the second energy storage battery 700 only when the energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity, so as to ensure that the electricity is sold across the wall after meeting the self-use.

[0042] Specifically, the wind-solar hybrid power generation device 200 includes a wind power generation component and a photovoltaic power generation component. The first output end of the wind power generation component and the first output end of the photovoltaic power generation component are respectively electrically connected to the corresponding first energy storage battery 100; the second output end of the wind power generation component and the second output end of the photovoltaic power generation component are both electrically connected to the corresponding second energy storage battery 700. By dividing the wind-solar hybrid power generation device 200 into independent wind power generation components and photovoltaic power generation components, the wind power generation components and the photovoltaic power generation components can work together to generate electricity for the household user's electricity load, and the power supply is stable.

[0043] Specifically, the wind power generation component includes at least one wind power generator currently available on the market.

[0044] Specifically, the photovoltaic power generation component adopts a common type of photovoltaic power generation system currently available on the market. The structure of the photovoltaic power generation component is not improved here, so it will not be elaborated.

[0045] Specifically, the third output terminal of the wind power generation component and the third output terminal of the photovoltaic power generation component are both electrically connected to the corresponding household user's power load. During the operation of the system of this embodiment, the power generated by the wind power generation component and the photovoltaic power generation component can be used to directly provide power load for the household user's power load, eliminating the step of charging the first energy storage battery 100 and then discharging the first energy storage battery 100 to provide power load for the household user's power load; at the same time, the power generated by the wind power generation component and the photovoltaic power generation component can be charged and stored in the first energy storage battery 100, so that when the power generated by the wind power generation component and the photovoltaic power generation component cannot meet the normal use of the household user's power load, the first energy storage battery 100 can be discharged to provide power load for the household user's power load together with the wind power generation component and the photovoltaic power generation component, thereby reducing the frequency of additional power purchases.

[0046] Specifically, the controller 500 is also used for:

[0047] Obtaining the power generation of the wind power generation component, the power generation of the photovoltaic power generation component, and the power load of the household user;

[0048] When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, the wind power generation component is controlled to charge the first energy storage battery 100 with the generated power;

[0049] When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, and the current energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity, the wind power generation component is controlled to charge the second energy storage battery 700 with the generated electricity;

[0050] When the power generation of the photovoltaic power generation component does not meet the power load of the corresponding household user, and the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component exceeds the power load of the corresponding household user, the photovoltaic power generation component and the wind power generation component are controlled to charge the first energy storage battery 100 with the surplus power generated; and the energy storage capacity of the first energy storage battery 100 is obtained in real time, and when the current energy storage capacity of the first energy storage battery 100 is greater than the first standard energy storage capacity, the photovoltaic power generation component and the wind power generation component are controlled to charge the second energy storage battery 700 with the surplus power generated;

[0051] When the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component does not meet the power load of the corresponding household user, and the energy storage capacity of the first energy storage battery 100 is greater than the minimum capacity, the photovoltaic power generation component, the wind power generation component and the first energy storage battery 100 are controlled to jointly provide the power load for the corresponding household user's power load.

[0052] During the period when solar energy resources are abundant, each wind-solar hybrid power generation device 200 of the system of this embodiment gives priority to using the power generated by the photovoltaic power generation component to directly provide power load for the corresponding household user's power load, and gives priority to controlling the wind power generation component to charge the first energy storage battery 100 or the second energy storage battery 700 separately on the basis of meeting the self-use, so as to avoid the photovoltaic power generation component and the wind power generation component charging the first energy storage battery 100 or the second energy storage battery 700 at the same time to interfere with each other; and when the power generated by the photovoltaic power generation component and the wind power generation component are sufficient to meet the self-use and there is a surplus, the surplus power is given priority to charging the first energy storage battery 100, and after the first energy storage battery 100 is fully charged, the second energy storage battery 700 is charged for wall-to-wall electricity sales, which is conducive to discharging the first energy storage battery 100 and jointly providing power load for the household user's power load with the wind power generation component and the photovoltaic power generation component when the power generated by the wind power generation component and the photovoltaic power generation component cannot meet the normal use of the household user's power load, thereby reducing the frequency of additional power purchases.

[0053] It can be understood that the minimum capacity refers to the capacity corresponding to when the first energy storage battery 100 cannot discharge normally.

[0054] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended invention.

Claims

1. A community distributed wind-solar hybrid energy system, applied to remote villages in off-grid environments, where the remote villages include multiple household users, characterized in that: The community distributed wind-solar hybrid energy system includes: A plurality of first energy storage batteries (100) are arranged in one-to-one correspondence with the household users, and the plurality of first energy storage batteries (100) respectively provide power loads for the corresponding household users; A plurality of wind-solar hybrid power generation devices (200), wherein the first output end of each wind-solar hybrid power generation device (200) is electrically connected to the corresponding first energy storage battery (100), and the second output end of each wind-solar hybrid power generation device (200) is electrically connected to a main distribution switch (300), and the output end of the main distribution switch (300) is electrically connected to a corresponding number of other household users through a plurality of transmission branches; each transmission branch is provided with an electric meter (410), and a first switch (420) is provided in the electric meter (410); The controller (500) is used to obtain the energy storage capacity of the first energy storage battery (100), and compare the energy storage capacity of each first energy storage battery (100) with a first standard energy storage capacity. If the current energy storage capacity of the first energy storage battery (100) is greater than the first standard energy storage capacity, the main power distribution switch (300) corresponding to the current first energy storage battery (100) is controlled to be closed. The controller (500) is also used to obtain the power purchase data of other household users and the power consumption of the electric meter (410) of other household users, and control the first switch (420) to be closed and opened according to the power purchase data and the power consumption of the electric meter (410).

2. A community distributed wind-solar hybrid energy system according to claim 1, characterized in that: The invention also comprises a billing cloud platform (600), wherein the billing cloud platform (600) is in communication connection with the controller (500); the billing cloud platform (600) receives electricity purchase requests sent by other household users, and returns payment information to the other household users in response to the electricity purchase requests, and generates the electricity purchase data after confirming the payment of the other household users.

3. A community distributed wind-solar hybrid energy system according to claim 2, characterized in that: The billing cloud platform (600) also receives a stop-sale request from the current household user, and changes the electricity selling transaction status of the current household user from a selling status to a stop-sale status in response to the stop-sale request. After generating electricity purchase data, the billing cloud platform (600) sends the electricity purchase data to the current household user whose electricity selling transaction status is a selling status.

4. A community distributed wind-solar hybrid energy system according to any one of claims 1 to 3, characterized in that: A second energy storage battery (700) is provided between the second output end of each wind-solar hybrid power generation device (200) and the corresponding power distribution main switch (300).

5. A community distributed wind-solar hybrid energy system according to claim 4, characterized in that: The second output end of each wind-solar hybrid power generation device (200) is provided with a second switch (210); if the current energy storage capacity of the first energy storage battery (100) is greater than the first standard energy storage capacity, the controller (500) is also used to control the second switch (210) of the wind-solar hybrid power generation device (200) corresponding to the current first energy storage battery (100) to close.

6. A community distributed wind-solar hybrid energy system according to claim 4, characterized in that: The wind-solar hybrid power generation device (200) comprises a wind power generation component and a photovoltaic power generation component, wherein the first output end of the wind power generation component and the first output end of the photovoltaic power generation component are respectively electrically connected to the corresponding first energy storage battery (100); the second output end of the wind power generation component and the second output end of the photovoltaic power generation component are both electrically connected to the corresponding second energy storage battery (700).

7. A community distributed wind-solar hybrid energy system according to claim 6, characterized in that: The third output end of the wind power generation component and the third output end of the photovoltaic power generation component are both electrically connected to the power load of the corresponding household user.

8. A community distributed wind-solar hybrid energy system according to claim 7, characterized in that: The controller (500) is also used for: Obtaining the power generation of the wind power generation component, the power generation of the photovoltaic power generation component, and the power load of the household user; When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, the wind power generation component is controlled to use the generated power to charge the first energy storage battery (100); When the power generation of the photovoltaic power generation component meets the power load of the corresponding household user, and the current energy storage capacity of the first energy storage battery (100) is greater than the first standard energy storage capacity, the wind power generation component is controlled to use the generated power to charge the second energy storage battery (700); When the power generation of the photovoltaic power generation component does not meet the power load of the corresponding household user, and the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component exceeds the power load of the corresponding household user, the photovoltaic power generation component and the wind power generation component are controlled to charge the first energy storage battery (100) with the surplus power generated; and the energy storage capacity of the first energy storage battery (100) is obtained in real time, and when the current energy storage capacity of the first energy storage battery (100) is greater than the first standard energy storage capacity, the photovoltaic power generation component and the wind power generation component are controlled to charge the second energy storage battery (700) with the surplus power generated; When the sum of the power generation of the photovoltaic power generation component and the power generation of the wind power generation component does not meet the power load of the corresponding household user, and the energy storage capacity of the first energy storage battery (100) is greater than the minimum capacity, the photovoltaic power generation component, the wind power generation component and the first energy storage battery (100) are controlled to jointly provide the power load for the corresponding household user's power load.

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