Intelligent power distribution system based on optical storage direct-flexible power supply

Abstract

The utility model discloses an intelligent power distribution system based on optical storage direct-flexible power supply, which relates to the technical field of building power supply and comprises an intelligent power distribution module, a photovoltaic module, an inversion module and a detection module. The output end of the photovoltaic module is respectively connected with the photovoltaic first inverter and the inversion module, the output end of the photovoltaic first inverter is connected with the energy storage module, the detection module is used for detecting the energy consumption of the system, the output end of the detection module is connected with an upper computer, and the upper computer is in signal connection with the intelligent power distribution module. The intelligent power distribution system based on the light storage direct flexible power supply is equipped with the intelligent power distribution module and the photovoltaic module, the photovoltaic module converts solar energy into electric energy, and the intelligent power distribution module controls the power of photovoltaic power generation, power storage and power distribution of municipal power, so that the cost of construction power utilization is greatly reduced, the emergency efficiency is improved, the power utilization requirement is met, and the system is low-carbon and environment-friendly.

Description

Technical Field

[0001] This utility model relates to the field of building power supply technology, and in particular to an intelligent power distribution system based on photovoltaic energy storage DC and flexible power distribution. Background Technology

[0002] In traditional construction, the demand for electricity is enormous. However, the electricity for traditional construction projects comes from municipal power or temporary power generation using diesel generators. Relying solely on municipal power leads to high electricity costs and increased investment. In the event of power outages or other special circumstances, the emergency response efficiency is low, failing to meet the special power requirements of construction projects, and is also environmentally unfriendly. Utility Model Content

[0003] This utility model addresses the problems of high electricity costs during construction, low emergency efficiency in the face of power outages and other special circumstances, inability to meet the special power requirements of construction, and environmental unfriendliness by providing an intelligent power distribution system based on photovoltaic, energy storage, direct current and flexible energy distribution.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a smart power distribution system based on photovoltaic-storage-DC-flexible architecture, comprising a smart power distribution module, a photovoltaic module, an inverter module, and a detection module. The smart power distribution module includes an energy storage module for energy storage and a photovoltaic inverter. The output terminals of the photovoltaic module are respectively connected to the photovoltaic inverter and the inverter module. The output terminal of the photovoltaic inverter is connected to the energy storage module. The detection module is used to detect the system energy consumption. The output terminal of the detection module is connected to a host computer, and the host computer is signal-connected to the smart power distribution module.

[0005] As described above, in the intelligent power distribution system based on photovoltaic-storage-DC-flexible power distribution, the detection module includes an energy consumption detector, which includes a first energy consumption detector. The inverter module is equipped with a first inverter, the input terminal of which is connected to the photovoltaic module, the output terminal of which is connected to the first energy consumption detector, the output terminal of which is connected to a telecommunications control network meter, and the output terminal of which is connected to a photovoltaic shutdown gateway. The inverter module is used to convert the DC power output by the photovoltaic module into AC power.

[0006] The aforementioned intelligent power distribution system based on photovoltaic, energy storage, direct current and flexible energy transfer includes a grid-connected module. The output terminal of the intelligent power distribution module and the output terminal of the inverter module are both connected to the input terminal of the grid-connected module. The output terminal of the grid-connected module is connected to a load circuit.

[0007] As described above, in the intelligent power distribution system based on photovoltaic storage DC and flexible energy storage, the energy consumption detector 41 includes a second energy consumption detector 412, the grid connection module includes a first circuit breaker, the output terminal of the first circuit breaker is connected to the input terminal of the telecommunications control network meter, the output terminal of the telecommunications control network meter is connected to the input terminal of the second energy consumption detector, and the output terminal of the second energy consumption detector is connected to the load circuit.

[0008] The aforementioned intelligent power distribution system based on photovoltaic, energy storage, direct current, and flexible energy transfer includes a prefabricated substation. The input terminal of the prefabricated substation is connected to the municipal power supply. The prefabricated substation is equipped with multiple output circuits. Each output circuit includes a tactile switch QK22, a circuit breaker QF22, and a current transformer. The output terminal of the tactile switch QK22 is connected to the input terminal of the circuit breaker QF22. The output terminal of the circuit breaker QF22 is connected to the input terminal of the current transformer. The output terminal of the current transformer is connected to the load circuit.

[0009] As described above, the intelligent power distribution system based on photovoltaic, energy storage, direct current and flexible transmission includes a host computer, a user terminal, a server, and a local PC. The user terminal and the local PC are connected to the server. The server is connected to the wired telecommunications control gateway. The output of the wired telecommunications control gateway is connected to the load circuit and transmits the real-time data of the load circuit to the host computer for processing.

[0010] As described above, in the intelligent power distribution system based on photovoltaic, energy storage, direct current and flexible energy transmission, the detection module includes a flow sensor, which is used to detect the amount of rainwater recovered.

[0011] Compared with the existing technology, the beneficial effects of this technical solution are as follows: After adopting this utility model, since the intelligent power distribution system based on photovoltaic storage DC-flexible is equipped with intelligent power distribution module and photovoltaic module, the photovoltaic module converts solar energy into electrical energy, and the intelligent power distribution module controls the power of photovoltaic power generation, energy storage and municipal power distribution. When applied to the construction site, photovoltaic power generation or municipal power can be flexibly used according to the needs, providing more power distribution options, greatly reducing the cost of construction power, improving emergency efficiency, meeting power demand, and being low-carbon and environmentally friendly.

[0012] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is the electrical schematic diagram of this utility model;

[0015] Figure 2 This is the electrical schematic diagram of the intelligent power distribution module of this utility model;

[0016] Figure 3 This utility model relates to the electrical principle of the inverter module. Figure 1 ;

[0017] Figure 4 This utility model relates to the electrical principle of the inverter module. Figure 2 ;

[0018] Figure 5 This is the electrical schematic diagram of the prefabricated substation of this utility model;

[0019] Figure 6 This is the electrical schematic diagram of the grid-connected module of this utility model;

[0020] Figure 7 This is the electrical principle block diagram of this utility model; Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 7The illustrated intelligent power distribution system based on photovoltaic-storage-DC-flexible architecture includes an intelligent power distribution module 1, a photovoltaic module 2, an inverter module 3, and a detection module 4. The intelligent power distribution module 1 includes an energy storage module 11 and a photovoltaic inverter 12. The output of the photovoltaic module 2 is connected to both the photovoltaic inverter 12 and the inverter module 3. The output of the photovoltaic inverter 12 is connected to the energy storage module 11. The detection module 4 is used to detect system energy consumption, and its output is connected to a host computer 7, which is signal-connected to the intelligent power distribution module 1. By adopting this invention, the intelligent power distribution system, equipped with both the intelligent power distribution module and the photovoltaic module, converts solar energy into electrical energy. The intelligent power distribution module controls the power output of the photovoltaic power generation, energy storage, and municipal power distribution. When applied at construction sites, it allows for flexible use of either photovoltaic power generation or municipal power as needed, providing more power distribution options, significantly reducing construction power costs, improving emergency response efficiency, meeting power demand, and promoting low-carbon environmental protection.

[0023] The system has grid-connected and off-grid modes. In grid-connected mode, the intelligent power distribution module adjusts the photovoltaic module's power generation, energy storage charging / discharging power, and status based on data detected by the monitoring module. When the detected energy consumption is less than a set value, the system charges the energy storage module and then controls the photovoltaic module to generate electricity, achieving self-consumption. In off-grid mode, the system prioritizes photovoltaic module power generation, charging the energy storage module only when there is excess power. Once the energy storage module is fully charged, the system controls the photovoltaic module to generate electricity; when power generation is insufficient, the energy storage module serves as output compensation and regulation power. Preferably, the first inverter is an SG110CX-P2-CN inverter.

[0024] As a specific implementation and not a limitation, the system includes a photovoltaic shutdown gateway 72. The detection module 4 includes an energy consumption detector 41, which includes a first energy consumption detector 411. The inverter module 3 has a first inverter. The input terminal of the first inverter is connected to the photovoltaic module 2, and the output terminal of the first inverter is connected to the first energy consumption detector 411. The output terminal of the first energy consumption detector 411 is connected to a telecommunications control network meter 8, and the output terminal of the telecommunications control network meter 8 is connected to the photovoltaic shutdown gateway 72. The inverter module 3 is used to convert the direct current (DC) output from the photovoltaic module 2 into alternating current (AC). The photovoltaic module 2 converts solar energy into electrical energy, but the converted electrical energy is DC, which cannot meet the construction power requirements. Therefore, the first inverter is used to convert the DC into AC to meet the construction power requirements. The first energy consumption detector connected to the output terminal of the first inverter is used to detect the output energy consumption, which facilitates subsequent system energy consumption statistics.

[0025] Furthermore, to achieve the switching between grid-connected and off-grid states, a grid-connected module 5 is included. The output terminals of the intelligent power distribution module 2 and the inverter module 3 are both connected to the input terminal of the grid-connected module 5. The output terminal of the grid-connected module 5 is connected to a load circuit 6. The grid-connected module 5 includes a first circuit breaker. The output terminal of the first circuit breaker is connected to the input terminal of a telecommunications control meter 8. The output terminal of the telecommunications control meter 8 is connected to the input terminal of a second energy consumption detector 412. The output terminal of the second energy consumption detector 412 is connected to the load circuit 6.

[0026] As a specific implementation method and not a limitation, to ensure the stable input of municipal power into this system, a prefabricated substation is included. The input terminal of the prefabricated substation is connected to the municipal power supply. The prefabricated substation is equipped with a multi-channel output circuit 51. The output circuit 51 includes a tactile switch QK22, a circuit breaker QF22, and a current transformer. The output terminal of the tactile switch QK22 is connected to the input terminal of the circuit breaker QF22, the output terminal of the circuit breaker QF22 is connected to the input terminal of the current transformer, and the output terminal of the current transformer is connected to the load circuit 6. The current transformer is used to measure the current value on the high-voltage side or low-voltage side of the prefabricated substation, providing accurate current signals for power metering and relay protection. It can proportionally transform high current into low current, facilitating processing by measurement and protection devices. This transformation not only improves the accuracy of measurement but also enhances the safety of the system. The current transformer also serves as an electrical isolation device, separating the high-voltage circuit from secondary equipment such as measurement and protection devices, reducing the risk of direct contact with high voltage, and improving the safety of personnel operation. The municipal power supply is fed into the prefabricated substation, which is also equipped with a telecommunications control network meter 8 for transmitting and collecting energy consumption data of the circuit.

[0027] As a specific implementation and not a limitation, the host computer 7 also includes a user terminal 73, a server 74, and a local PC terminal 75. The user terminal 73 and the local PC terminal 75 are both connected to the server 74. The server is connected to the wired communication control gateway 9. The output terminal of the wired communication control gateway 9 is connected to the load circuit 6, and transmits the real-time data of the load circuit 6 to the host computer 7 for processing. The detection module 4 includes a flow sensor 42, which is used to detect the amount of rainwater recovered. This system can also collect data from electrical and water-using equipment such as timed air conditioning control, real-time temperature sensor data alerts, timed control of environmental protection equipment, and rainwater recovery detection. The data is then transmitted to the wired communication control gateway 9 for collection, and then transmitted to the user terminal 73 and the local PC terminal 75 for remote real-time acquisition, analysis, and centralized management.

[0028] The specific charging and discharging process of this utility model is as follows:

[0029] This system sets time periods for charging and discharging. If the photovoltaic system generates more electricity than needed, it doesn't require mains charging. The intelligent power distribution module utilizes peak-valley differences to generate revenue from electricity charges. For example, the system can be configured with charging from 00:00 to 8:00, discharging from 10:00 to 12:00, charging again from 12:10 to 14:00, and discharging again from 14:20 to 18:30. This achieves two charging and two discharging cycles per day, and the charging and discharging times can be adjusted according to actual needs. When the output power is below 20kW, a reverse current protection limit is set.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A smart power distribution system based on photovoltaic, energy storage, direct current, and flexible energy transfer, characterized in that, The system includes an intelligent power distribution module (1), a photovoltaic module (2), an inverter module (3), and a detection module (4). The intelligent power distribution module (1) includes an energy storage module (11) for energy storage and a photovoltaic inverter (12). The output of the photovoltaic module (2) is connected to the photovoltaic inverter (12) and the inverter module (3) respectively. The output of the photovoltaic inverter (12) is connected to the energy storage module (11). The detection module (4) is used to detect the system energy consumption. The output of the detection module (4) is connected to a host computer (7). The host computer (7) is connected to the intelligent power distribution module (1) via a signal connection.

2. The intelligent power distribution system based on photovoltaic, energy storage, direct current, and flexible power distribution according to claim 1, characterized in that, The detection module (4) includes an energy consumption detector (41), which includes a first energy consumption detector (411). The inverter module (3) is provided with a first inverter. The input end of the first inverter is connected to the photovoltaic module (2). The output end of the first inverter is connected to the first energy consumption detector (411). The output end of the first energy consumption detector (411) is connected to a telecommunications control network meter (8). The output end of the telecommunications control network meter (8) is connected to a photovoltaic shutdown gateway (72). The other end of the photovoltaic shutdown gateway (72) is connected to the photovoltaic module (2). The inverter module (3) is used to convert the DC power output by the photovoltaic module (2) into AC power.

3. The intelligent power distribution system based on photovoltaic, energy storage, direct current, and flexible power distribution according to claim 2, characterized in that, The system includes a grid-connected module (5), the output of the intelligent power distribution module (1) and the output of the inverter module (3) are connected to the input of the grid-connected module (5), and the output of the grid-connected module (5) is connected to a load circuit (6).

4. The intelligent power distribution system based on photovoltaic-storage-DC-flexible transmission according to claim 3, characterized in that, The energy consumption detector (41) includes a second energy consumption detector (412), the grid-connected module (5) includes a first circuit breaker, the output terminal of the first circuit breaker is connected to the input terminal of the telecommunications control network meter (8), the output terminal of the telecommunications control network meter (8) is connected to the input terminal of the second energy consumption detector (412), and the output terminal of the second energy consumption detector (412) is connected to the load circuit (6).

5. The intelligent power distribution system based on photovoltaic-storage-DC-flexible transmission according to claim 4, characterized in that, The system includes a prefabricated substation, the input of which is connected to municipal power. The prefabricated substation is equipped with a multi-channel output circuit (51). The output circuit (51) includes a tactile switch QK22, a circuit breaker QF22, and a current transformer. The output of the tactile switch QK22 is connected to the input of the circuit breaker QF22. The output of the circuit breaker QF22 is connected to the input of the current transformer. The output of the current transformer is connected to the load circuit (6).

6. The intelligent power distribution system based on photovoltaic-storage-DC-flexible transmission according to claim 5, characterized in that, The host computer (7) also includes a user terminal (73), a server (74) and a local PC terminal (75). The user terminal (73) and the local PC terminal are connected to the server (74). The server is connected to a telecommunications control gateway (9). The output terminal of the telecommunications control gateway (9) is connected to the load circuit (6) and transmits the real-time data of the load circuit (6) to the host computer (7) for processing.

7. The intelligent power distribution system based on photovoltaic-storage-DC-flexible transmission according to claim 2, characterized in that, The detection module (4) includes a flow sensor (42) for detecting the amount of rainwater recovered.

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