Intelligent balcony photovoltaic energy storage controller

Abstract

The utility model relates to the technical field of photovoltaic energy storage controllers, and discloses an intelligent balcony photovoltaic energy storage controller, one side of a photovoltaic controller main body is respectively provided with a photovoltaic panel interface I and a photovoltaic panel interface II which are used for being connected with a balcony photovoltaic panel assembly, so that the portability and the miniaturization of photovoltaic energy storage equipment are realized, a user can complete do it yourself (DIY) autonomy, and the intelligent balcony photovoltaic energy storage controller is convenient to use. The output end of the equipment can be connected with direct-current electric equipment and a micro grid-connected inverter, redundant electric energy can be converged into a power grid through the micro inverter, and the equipment has a storage battery charging and discharging management mechanism and can be matched with energy storage equipment for use; through the design of the energy management strategy unit, the user can automatically complete the local time modification of the equipment by setting a time zone according to the country or region where the user is located, can customize different power consumption scene modes and modify an electric energy management strategy according to the household power consumption demand of the user, and combines with the local time of the equipment to realize the energy management of the equipment. And the electric energy output in each time period is intelligently controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic energy storage controllers, in particular to an intelligent balcony photovoltaic energy storage controller. Background Art

[0002] The intelligent balcony photovoltaic energy storage controller is a device that can convert solar energy into electrical energy. It has the functions of solar energy conversion, electrical energy storage and electrical energy output.

[0003] After searching, the patent with application number CN202121697263.4 discloses a photovoltaic energy storage charging controller, including: a base, the bottom of the base is connected with a suction cup, and the controller body is arranged above the base; a fixed plate, the fixed plate is fixedly installed above the base, and one side of the fixed plate is connected with a fixed block, and the fixed block is connected with a pressure plate through a pull rod and a spring; a wire take-up groove, the wire take-up groove is installed at the rear end of the controller body, and the wire take-up groove is connected with a wire take-up wheel through a rotating rod, and a limit rod is arranged on the upper right of the wire take-up wheel, and the suction cup is arranged with 4, and the suction cup is designed in a truncated cone structure, and the suction cups are mutually symmetrical about the base. The photovoltaic energy storage charging controller can realize the adjustable angle of the photovoltaic solar panel, and the overall structure is simple, and it can realize the convenience of disassembly and assembly of the charging controller, and at the same time, it can realize the storage of the wires, thereby facilitating the use of the charging controller.

[0004] At present, the industry focuses on large-power photovoltaic inverters and micro photovoltaic converters. Typical representative technical products are string-type photovoltaic grid-connected (off-grid) inverter-controlled integrated machines and micro-string-type photovoltaic grid-connected inverter-controlled integrated machines, as well as some large-power industrial energy storage photovoltaic grid-connected (off-grid) inverter-controlled integrated machines. String-type photovoltaic grid-connected inverter-controlled integrated machines generally do not have energy storage functions. Their conversion power is large, so their own size is relatively large. The application scenarios are generally limited to large photovoltaic power stations or fixed home and office environments. They cannot be lightweight or miniaturized, and cannot be carried around. It is difficult to move anytime and anywhere, and disassembly and assembly require professional operations; large-power industrial energy storage photovoltaic grid-connected (off-grid) inverter-controlled integrated machines are generally not suitable for homes, so we need to propose an intelligent balcony photovoltaic energy storage controller. Utility Model Content

[0005] The purpose of the utility model is to provide an intelligent balcony photovoltaic energy storage controller, which can realize the lightness and miniaturization of photovoltaic energy storage equipment, facilitate disassembly, carrying and migration, and users can completely DIY themselves. The output end of the device can be connected to DC power equipment and micro grid-connected inverters. Excess electric energy can be fed into the power grid through the micro inverter. It has a battery charging and discharging management mechanism and can be used in conjunction with energy storage equipment. Through the design of the energy management strategy unit, users can automatically complete the local time modification of the device by setting the time zone according to their country or region. Users can also customize different power consumption scenario modes according to their own household power consumption needs, modify the power management strategy, and combine the local time of the device to intelligently control the power output of each time period to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: an intelligent balcony photovoltaic energy storage controller, comprising a photovoltaic controller body, one side of the photovoltaic controller body is respectively installed with a photovoltaic panel interface 1 and a photovoltaic panel interface 2 for connecting a balcony photovoltaic panel assembly, the other side of the photovoltaic controller body is installed with an output terminal interface for connecting a DC power device and a micro grid-connected inverter, and the lower end of the photovoltaic controller body is also connected to a battery interface for charging and discharging an energy storage battery;

[0007] The photovoltaic controller body is internally provided with a power regulation and battery charge and discharge management unit, two photovoltaic MPPT tracking modules connected to the power regulation and battery charge and discharge management unit, an energy management strategy unit, a BMS communication management unit, a remote communication management unit and a system data management unit, and the remote communication management unit is connected to the system data management unit.

[0008] Preferably, a Bluetooth communication antenna and a wireless communication antenna for realizing wireless communication with a terminal device are also installed on the other side of the photovoltaic controller body.

[0009] Preferably, the power control and battery charge and discharge management unit and the BMS communication management unit are both connected to the energy storage battery.

[0010] Preferably, the two photovoltaic MPPT tracking modules are photovoltaic MPPT tracking module 1 and photovoltaic MPPT tracking module 2 respectively, the photovoltaic MPPT tracking module 1 is connected to photovoltaic panel interface 1, and the photovoltaic panel interface 12 is connected to photovoltaic panel interface 2.

[0011] Preferably, the photovoltaic MPPT tracking module includes a buck-boost circuit, and the buck-boost circuit includes a front-stage vertically symmetrical dual-switch tube Boost circuit and a rear-stage vertically symmetrical dual-switch tube Buck circuit.

[0012] Preferably, the energy management strategy unit is configured to be an energy management strategy unit capable of setting different power usage scenario modes, such as a weekday mode, a holiday mode, and a custom mode.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model realizes the lightness and miniaturization of photovoltaic energy storage equipment, which is convenient for disassembly, assembly, carrying and migration. Users can completely DIY and be independent, and the output end of the equipment can be connected to DC power equipment and micro grid-connected inverter. The excess electric energy can be fed into the power grid through the micro inverter. It has a battery charge and discharge management mechanism and can be used in conjunction with energy storage equipment. Through the design of the energy management strategy unit, users can automatically complete the local time modification of the device by setting the time zone according to their country or region. Users can also customize different power consumption scenario modes according to their own family power consumption needs, modify the power management strategy, and combine the local time of the device to intelligently control the power output of each time period. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of an application scenario of the utility model;

[0017] Figure 3 It is a functional block diagram of the utility model;

[0018] Figure 4 This is a schematic diagram of the electricity usage scenario of the utility model.

[0019] In the figure: 1. Photovoltaic controller body; 2. Photovoltaic panel interface 1; 3. Photovoltaic panel interface 2; 4. Battery interface; 5. Status indicator light; 6. Output terminal interface; 7. Bluetooth communication antenna; 8. Wireless communication antenna. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4The utility model provides a technical solution: an intelligent balcony photovoltaic energy storage controller, comprising a photovoltaic controller body 1, a photovoltaic panel interface 1 2 and a photovoltaic panel interface 2 3 for connecting a balcony photovoltaic panel assembly are installed on one side of the photovoltaic controller body 1, an output terminal interface 6 for connecting a DC power device and a micro grid-connected inverter is installed on the other side of the photovoltaic controller body 1, and a battery interface 4 for charging and discharging an energy storage battery is also connected to the lower end of the photovoltaic controller body 1;

[0022] The output port 6 connects the DC power-consuming device and the micro grid-connected inverter, supports micro grid-connected inverters from multiple manufacturers, and provides more choices for different users' preferences. The excess electric energy can be fed into the grid through the micro inverter.

[0023] When a micro grid-connected inverter is connected to the output end of the device, it can effectively prevent the electric energy of the energy storage battery from being released and then fed into the AC power grid.

[0024] When there is abundant solar energy, the solar energy can be converted into electrochemical energy and stored on the premise of ensuring the electric energy at the output end, and the energy storage battery can be replenished in time; when solar energy is insufficient, the stored electrochemical energy can be released to supplement the electric energy supply at the output end, providing strong guarantee for household electricity use at night.

[0025] If the charging demand of the energy storage battery is small and the input power of the photovoltaic panel is large, the electricity generated by the balcony photovoltaic panel assembly will be fully output and all fed into the power grid through the micro-string photovoltaic grid-connected inverter-controlled integrated machine.

[0026] In addition, the equipment also has the function of heating the energy storage battery, which ensures the outdoor use of the energy storage battery in cold areas. It also provides wireless communication to realize remote monitoring.

[0027] The power of balcony photovoltaic panel components is usually around 200 to 400W. They are light and compact, and can be installed on outdoor balconies or indoors. Disassembly, assembly, carrying and relocation can all be done by users independently, and can meet household electricity needs.

[0028] The photovoltaic controller body 1 is internally provided with a power control and battery charge and discharge management unit, two photovoltaic MPPT tracking modules connected to the power control and battery charge and discharge management unit, an energy management strategy unit, a BMS communication management unit, a remote communication management unit and a system data management unit, and the remote communication management unit and the system data management unit are connected.

[0029] The photovoltaic MPPT tracking module tracks the maximum power point of the photovoltaic panel in real time to ensure that the input efficiency of the photovoltaic panel is maximized and the solar energy is utilized to the maximum extent.

[0030] The other side of the photovoltaic controller body 1 is also equipped with a Bluetooth communication antenna 7 and a wireless communication antenna 8 for realizing wireless communication with the terminal device, thereby realizing wireless communication of the device.

[0031] The power control and battery charge and discharge management unit and the BMS communication management unit are all connected to the energy storage battery.

[0032] The two photovoltaic MPPT tracking modules are photovoltaic MPPT tracking module 1 and photovoltaic MPPT tracking module 2. The photovoltaic MPPT tracking module 1 is connected to photovoltaic panel interface 1 2 , and photovoltaic panel interface 1 2 2 is connected to photovoltaic panel interface 2 3 .

[0033] The photovoltaic MPPT tracking module includes a buck-boost circuit, which includes a symmetrical dual-switch Boost circuit at the front stage and a symmetrical dual-switch Buck circuit at the rear stage. The PWM modulation wave with complementary dead zone is used in conjunction with the MPPT algorithm program to complete the maximum power point tracking and power regulation of the photovoltaic panel.

[0034] The output end of the device outputs direct current, which can be connected to a direct current power-consuming device or a micro-string photovoltaic grid-connected inverter-controlled integrated machine; when the output end interface 6 is connected to a direct current power-consuming device, its output electric energy can be directly utilized; when the output end interface 6 is connected to a micro-string photovoltaic grid-connected inverter-controlled integrated machine, direct current can be converted into alternating current and then fed into the power grid.

[0035] The energy management strategy unit is configured to be able to set different power usage scenario modes such as weekday mode, holiday mode, and custom mode.

[0036] This equipment charges and discharges the energy storage battery. When the input power of the balcony photovoltaic panel assembly is greater than the power demand of the output end, the remaining electric energy can be transmitted to the energy storage battery to charge it; when the input power of the balcony photovoltaic panel assembly is less than the power demand of the output end, the power of the energy storage battery can be released to supplement the power demand of the output end, thereby ensuring the family's electricity consumption at night.

[0037] This device has a high efficiency in solar energy conversion rate; configurable local time management mechanism and intelligent energy management strategy unit, users can automatically set the local time of the device according to the time zone of their region; users can also set power management modes for different scenarios according to their family's power consumption in different time periods, combined with the time zone of the user's country (region), to effectively control power output.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Intelligent balcony photovoltaic energy storage controller, characterized by: The photovoltaic controller comprises a photovoltaic controller body (1), one side of which is respectively provided with a photovoltaic panel interface 1 (2) and a photovoltaic panel interface 2 (3) for connecting a balcony photovoltaic panel assembly, the other side of which is provided with an output end interface (6) for connecting a DC power device and a micro grid-connected inverter, and the lower end of the photovoltaic controller body (1) is also connected with a battery interface (4) for charging and discharging an energy storage battery; The photovoltaic controller body (1) is internally provided with a power control and battery charge and discharge management unit, two photovoltaic MPPT tracking modules connected to the power control and battery charge and discharge management unit, an energy management strategy unit, a BMS communication management unit, a remote communication management unit and a system data management unit, and the remote communication management unit is connected to the system data management unit.

2. The intelligent balcony photovoltaic energy storage controller according to claim 1 is characterized in that: A Bluetooth communication antenna (7) and a wireless communication antenna (8) for realizing wireless communication with terminal equipment are also installed on the other side of the photovoltaic controller body (1).

3. The intelligent balcony photovoltaic energy storage controller according to claim 1 is characterized in that: The power control and battery charge and discharge management unit and the BMS communication management unit are both connected to the energy storage battery.

4. The intelligent balcony photovoltaic energy storage controller according to claim 1 is characterized in that: The two photovoltaic MPPT tracking modules are photovoltaic MPPT tracking module 1 and photovoltaic MPPT tracking module 2 respectively. The photovoltaic MPPT tracking module 1 is connected to photovoltaic panel interface 1 (2), and the photovoltaic panel interface 1 (2) is connected to photovoltaic panel interface 2 (3).

5. The intelligent balcony photovoltaic energy storage controller according to claim 1 is characterized in that: The photovoltaic MPPT tracking module includes a buck-boost circuit, which includes a front-stage symmetrical dual-switch tube Boost circuit and a rear-stage symmetrical dual-switch tube Buck circuit.

6. The intelligent balcony photovoltaic energy storage controller according to claim 1 is characterized in that: The energy management strategy unit is configured to be an energy management strategy unit capable of setting different power usage scenario modes, such as a weekday mode, a holiday mode, and a custom mode.

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