Intelligent grid-connected charging station

Abstract

The intelligent grid-connected charging station comprises a power distribution cabinet, a power distribution box and four sets of charging piles installed below a rain shelter, the power distribution cabinet is connected with a superior power box, and the three-phase power output end of the power distribution cabinet is connected with the three-phase power input end of the power distribution box and the three-phase power input end of the charging piles; the charging station further comprises an energy storage system, a monitoring terminal, a charging station management platform and a photovoltaic panel, the energy storage system and the charging pile communicate with the monitoring terminal through an LORA network, the monitoring terminal communicates with the charging station management platform through the Internet, and the advertising board and the camera communicate with the monitoring terminal through the Ethernet; the direct current output end of the photovoltaic panel is connected with the direct current input end of the energy storage system, and the energy storage system is connected with the input end of the power distribution cabinet; the monitoring terminal and the charging station management platform are arranged, and the working states of the energy storage system and the charging piles are acquired by using the LORA network for real-time monitoring and data recording, so that centralized management and remote monitoring of the charging stations in the jurisdiction are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of charging stations, and in particular to an intelligent grid-connected charging station for charging electric vehicles. Background Art

[0002] With the widespread use of electric vehicles, the demand for the construction of electric vehicle charging stations is growing. Most of the existing charging stations are concentrated in cities and highways, while the coverage rate in other areas of towns and villages is low, which limits the travel range of electric vehicles. If charging piles are installed on a large scale in urban and rural areas, it will not only increase government investment, but also increase the work pressure of maintenance personnel. In addition, the charging demand of existing buses will increase after they are upgraded to electric vehicles, and the charging time will be concentrated, which is not conducive to the power distribution and control of the main grid, affecting the balance of power supply demand. To this end, we propose a smart grid-connected charging station that uses solar energy and grid switching to achieve dual grid-connected power supply, and it is necessary to achieve remote monitoring and centralized management in unmanned areas. Summary of the invention

[0003] The technical problem to be solved by the present invention is that the existing charging stations are unable to realize real-time monitoring and centralized management of the working status and operation data of their equipment, resulting in limited installation areas of the charging stations and low working efficiency. An intelligent grid-connected charging station is disclosed. By setting up a monitoring terminal and a charging station management platform, the LORA network is used to obtain the working status of the energy storage system and four groups of charging piles for real-time monitoring and data recording, thereby realizing centralized management and remote monitoring of the charging stations within the jurisdiction.

[0004] The technical solution adopted by the present invention to solve the technical problem is: an intelligent grid-connected charging station, comprising a distribution cabinet, a distribution box, and four groups of charging piles installed at equal intervals under the rain shelter, the distribution cabinet is connected to the upper power box transformer through a line inlet, the three-phase power output end of the distribution cabinet is respectively connected to the three-phase power input end of the distribution box and the four groups of charging piles, and the DC output end of the distribution box supplies power to the lighting, billboards and cameras respectively;

[0005] The charging station also includes an energy storage system, a monitoring terminal, a charging station management platform, and a photovoltaic panel installed on the top of the rain shelter;

[0006] The energy storage system and the four groups of charging piles communicate with the monitoring terminal via the LORA network, the monitoring terminal communicates with the charging station management platform via the Internet, and the billboard and the camera communicate with the monitoring terminal via Ethernet;

[0007] The DC output terminal of the photovoltaic panel is connected to the DC input terminal of the energy storage system, and the three-phase power output terminal of the energy storage system is connected to the input terminal of the power distribution cabinet;

[0008] The monitoring terminal is used to obtain monitoring data of the charging pile, energy storage system, and camera, and send the acquired monitoring data to the charging station management platform via the Internet, and receive and execute instructions issued by the charging station management platform;

[0009] The charging station management platform is used to centrally manage the charging stations within the jurisdiction, and serves as a server accessed by users and managers to achieve remote monitoring and use of the charging stations.

[0010] Preferably, the monitoring terminal is composed of a computer system, an Ethernet gateway, and a LORA gateway. The computer system monitors the working status of the energy storage system and four groups of charging piles in real time and records data through the LORA network, receives video information from the camera through Ethernet, and downloads the advertising information to be displayed to the billboard, and coordinates and controls the work of the charging piles, energy storage system and camera.

[0011] Preferably, the energy storage system is composed of a grid-connected box, a battery management board, a battery pack, an inverter, an energy storage control board and a LORA module. The battery management board, the inverter and the LORA module are respectively connected to the energy storage control board through an RS485 interface, the DC charging end of the battery pack is connected to the DC output end of the inverter, the battery pack is connected to the battery management board through an A / D interface, the three-phase power output end of the inverter is connected to the grid-connected box input end, the grid-connected box output end is connected to the three-phase power input end of the distribution cabinet, and the DC input end of the inverter is connected to the DC output end of the photovoltaic panel;

[0012] The grid-connected box, battery management board, battery pack, inverter, energy storage control board and LORA module are all installed in the energy storage system cabinet;

[0013] Wherein, the inverter is a bidirectional string inverter.

[0014] Preferably, the battery pack is a lithium iron phosphate battery pack.

[0015] Preferably, a bidirectional grid-connected watt-hour meter, a power collection meter and a surge protector are installed inside the grid-connected box, and the bidirectional grid-connected watt-hour meter, the power collection meter and the surge protector are all wall-mounted on the internal ribs of the grid-connected box.

[0016] Preferably, the photovoltaic panel is assembled together by a plurality of photovoltaic components in an integrated module, and the photovoltaic components are single crystal silicon components.

[0017] Preferably, the rain shelter is composed of a roof frame and several supporting columns, inclined beams and purlins, and sixteen supporting columns are provided, which are sequentially distributed at the bottom of the rain shelter roof frame and located at the rear side, and four groups of charging piles are installed at equal intervals between the supporting columns;

[0018] The inclined beams are provided in five groups and are sequentially installed under the ceiling frame. The inclined beams are V-shaped, and the top supporting part thereof is welded to the ceiling frame;

[0019] Several beams are transversely connected between the ceiling frames, the purlins are sequentially installed above the beams, and both ends of the several purlins are fixed to the ceiling frames;

[0020] The photovoltaic panel is installed above the purlin via a fixing piece.

[0021] Preferably, the roof frame, supporting columns, inclined beams, cross beams and purlins of the rain shelter are all made of steel sections.

[0022] Preferably, the billboards are provided in eight groups, which are sequentially installed on the supporting columns on both sides of the charging pile.

[0023] Preferably, a guardrail is installed above the rain shelter at a rear position, and a ladder is installed on the left side of the rain shelter near the guardrail.

[0024] Compared with the prior art, the beneficial effects of the present invention are as follows: an intelligent grid-connected charging station, by setting up a monitoring terminal and a charging station management platform, the monitoring terminal uses the LORA network to perform real-time monitoring and data recording on the working status of the energy storage system and four groups of charging piles, receives the video information of the camera through Ethernet, coordinates and controls the work of the charging piles, the energy storage system and the camera; the charging station management platform receives the data monitored by the monitoring terminal through the Internet, and centrally manages the charging stations within the jurisdiction according to the received data, thereby realizing remote monitoring and use of the charging stations;

[0025] By laying solar photovoltaic panels on the top of the charging station's rain shelter, dual grid-connected power supply is achieved by switching between solar energy and the power grid, thus improving the power supply efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the electrical structure of the charging station of the present invention;

[0027] Figure 2 This is a schematic diagram of the energy storage system of the present invention;

[0028] Figure 3 This is a front view of the charging station of the present invention;

[0029] Figure 4 It is a schematic diagram of the three-dimensional structure of the rain shelter of the present invention.

[0030] In the figure: 1. Power distribution cabinet; 2. Power distribution box; 3. Rain shelter; 4. Charging pile; 5. Lighting; 6. Billboard; 7. Camera; 8. Energy storage system; 9. Monitoring terminal; 10. Charging station management platform; 11. Photovoltaic panel; 12. Upper power box transformer;

[0031] 31. Ceiling frame; 32. Diagonal beam; 33. Support column; 34. Horizontal beam; 35. Purlin; 36. Guardrail; 37. Ladder;

[0032] 81. Grid-connected box; 82. Battery management board; 83. Energy storage control board; 84. LORA module; 85. Battery pack; 86. Inverter. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figure 1 The present invention provides a technical solution: an intelligent grid-connected charging station, comprising a distribution cabinet 1, a distribution box 2, and four groups of charging piles 4 installed at equal intervals under a rain shelter 3, wherein the distribution cabinet 1 is connected to an upper power box transformer 12 via a line inlet, and the three-phase power output end of the distribution cabinet 1 is respectively connected to the three-phase power input end of the distribution box 2 and the four groups of charging piles 4, and the DC output end of the distribution box 2 supplies power to a lighting lamp 5, a billboard 6 and a camera 7 respectively; the charging station also includes an energy storage system 8, a monitoring terminal 9, a charging station management platform 10 and a photovoltaic panel 11 installed on the top of the rain shelter 3;

[0035] The energy storage system 8 and the four groups of charging piles 4 communicate with the monitoring terminal 9 via the LORA network, the monitoring terminal 9 communicates with the charging station management platform 10 via the Internet, and the billboard 6 and the camera 7 communicate with the monitoring terminal 9 via Ethernet;

[0036] The DC output end of the photovoltaic panel 11 is connected to the DC input end of the energy storage system 8, and the three-phase power output end of the energy storage system 8 is connected to the input end of the power distribution cabinet 1;

[0037] The monitoring terminal 9 is used to obtain monitoring data of the charging pile 4, the energy storage system 8, and the camera 7, and send the acquired monitoring data to the charging station management platform 10 via the Internet, and receive and execute instructions issued by the charging station management platform 10;

[0038] The charging station management platform 10 is used to centrally manage the charging stations within the jurisdiction, and serves as a server accessed by users and managers to achieve remote monitoring and use of the charging stations.

[0039] The monitoring terminal 9 in this embodiment is composed of a computer system, an Ethernet gateway, and a LORA gateway. The computer system monitors and records the working status of the energy storage system 8 and the four groups of charging piles 4 in real time through the LORA network, receives the video information of the camera 7 through Ethernet, and downloads the advertising information to be displayed to the billboard 6, and coordinates and controls the work of the charging piles 4, the energy storage system 8 and the camera 7.

[0040] See also Figure 2 The energy storage system 8 is composed of a grid-connected box 81, a battery management board 82, a battery pack 85, an inverter 86, an energy storage control board 83 and a LORA module 84. The battery management board 82, the inverter 86 and the LORA module 84 are respectively connected to the energy storage control board 83 through an RS485 interface, the DC charging end of the battery pack 85 is connected to the DC output end of the inverter 86, the battery pack 85 is connected to the battery management board 82 through an A / D interface, the three-phase power output end of the inverter 86 is connected to the input end of the grid-connected box 81, the output end of the grid-connected box 81 is connected to the three-phase power input end of the power distribution cabinet 1, and the DC input end of the inverter 86 is connected to the DC output end of the photovoltaic panel 11;

[0041] The grid-connected box 81, the battery management board 82, the battery pack 85, the inverter 86, the energy storage control board 83 and the LORA module 84 are all installed in the energy storage system cabinet; in this embodiment, the energy storage system cabinet is installed on the left side of the rain shelter;

[0042] The inverter 86 is a bidirectional string inverter.

[0043] The battery pack described in this embodiment is a lithium iron phosphate battery pack.

[0044] In this embodiment, the grid-connected box 81 is internally installed with a bidirectional grid-connected watt-hour meter, a power collection meter and a surge protector, and the bidirectional grid-connected watt-hour meter, the power collection meter and the surge protector are all wall-mounted on the internal ribs of the grid-connected box.

[0045] The photovoltaic panel 11 in this embodiment is composed of a plurality of photovoltaic modules assembled together in an integrated module manner, and the photovoltaic modules are single crystal silicon modules. In this embodiment, 64 photovoltaic modules are provided.

[0046] See also Figure 4 The rain shelter 3 is composed of a roof frame 31 and several supporting columns 33, an inclined beam 32 and a purlin 35. Sixteen supporting columns 33 are arranged, which are sequentially distributed at the bottom of the rain shelter roof frame 31 and located at the rear side. Four groups of charging piles 4 are installed at equal intervals between the supporting columns 33.

[0047] The inclined beams 32 are provided in five groups and are sequentially installed below the ceiling frame 31. The inclined beams 32 are V-shaped, and the top supporting part thereof is welded to the ceiling frame 31.

[0048] Several beams 34 are transversely connected between the ceiling frames 31, and the purlins 35 are sequentially installed above the beams 34, and both ends of the purlins 35 are fixed on the ceiling frames 31;

[0049] The photovoltaic panel 11 is installed above the purlin 35 via a fixing member.

[0050] In this embodiment, the roof frame 31, supporting columns 33, inclined beams 32, cross beams 34 and purlins 35 of the rain shelter 3 are all made of steel.

[0051] See also Figure 3 There are eight groups of billboards 6 , which are sequentially installed on the supporting columns 33 on both sides of the charging pile 4 .

[0052] See also Figure 4 A guardrail 36 is installed at the rear side above the rain shelter 3, and a ladder 37 is installed on the left side of the rain shelter near the guardrail 36.

[0053] In this embodiment, the number and positions of cameras and lighting installed on the awning are reasonably installed according to the site planning and will not be elaborated here.

[0054] In this embodiment, a monitoring terminal 9 and a charging station management platform 10 are provided. The monitoring terminal 9 uses the LORA network to perform real-time monitoring and data recording on the working status of the energy storage system 8 and the four groups of charging piles 4, receives the video information of the camera 7 through Ethernet, coordinates and controls the work of the charging piles 4, the energy storage system 8 and the camera 7; the charging station management platform 10 receives the data monitored by the monitoring terminal 9 through the Internet, and centrally manages the charging stations within the jurisdiction according to the received data, thereby realizing remote monitoring and use of the charging stations.

[0055] 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. An intelligent grid-connected charging station, comprising a power distribution cabinet, a power distribution box, and four groups of charging piles installed at equal intervals under a rain shelter. The power distribution cabinet is connected to an upper power box transformer through a line inlet. The three-phase power output end of the power distribution cabinet is respectively connected to the three-phase power input end of the power distribution box and the four groups of charging piles. The DC output end of the power distribution box supplies power to lighting, billboards and cameras respectively. Features: The charging station also includes an energy storage system, a monitoring terminal, a charging station management platform, and a photovoltaic panel installed on the top of the rain shelter; The energy storage system and the four groups of charging piles communicate with the monitoring terminal via the LORA network, the monitoring terminal communicates with the charging station management platform via the Internet, and the billboard and the camera communicate with the monitoring terminal via Ethernet; The DC output terminal of the photovoltaic panel is connected to the DC input terminal of the energy storage system, and the three-phase power output terminal of the energy storage system is connected to the input terminal of the power distribution cabinet; The monitoring terminal is used to obtain monitoring data of the charging pile, energy storage system, and camera, and send the acquired monitoring data to the charging station management platform via the Internet, and receive and execute instructions issued by the charging station management platform; The charging station management platform is used to centrally manage the charging stations within the jurisdiction, and serves as a server accessed by users and managers to achieve remote monitoring and use of the charging stations.

2. The intelligent grid-connected charging station according to claim 1, characterized in that: The monitoring terminal is composed of a computer system, an Ethernet gateway, and a LORA gateway. The computer system monitors the working status of the energy storage system and four groups of charging piles in real time and records data through the LORA network, receives video information from the camera through Ethernet, and downloads the advertising information to be displayed to the billboard, coordinating and controlling the work of the charging piles, energy storage system and cameras.

3. The intelligent grid-connected charging station according to claim 1, characterized in that: The energy storage system is composed of a grid-connected box, a battery management board, a battery pack, an inverter, an energy storage control board and a LORA module. The battery management board, the inverter and the LORA module are respectively connected to the energy storage control board through an RS485 interface, the DC charging end of the battery pack is connected to the DC output end of the inverter, the battery pack is connected to the battery management board through an A / D interface, the three-phase power output end of the inverter is connected to the grid-connected box input end, the grid-connected box output end is connected to the three-phase power input end of the distribution cabinet, and the DC input end of the inverter is connected to the DC output end of the photovoltaic panel; The grid-connected box, battery management board, battery pack, inverter, energy storage control board and LORA module are all installed in the energy storage system cabinet; Wherein, the inverter is a bidirectional string inverter.

4. The intelligent grid-connected charging station according to claim 3, characterized in that: The battery pack is a lithium iron phosphate battery pack.

5. The intelligent grid-connected charging station according to claim 3, characterized in that: A bidirectional grid-connected watt-hour meter, an electricity collection meter and a surge protector are installed inside the grid-connected box. The bidirectional grid-connected watt-hour meter, the electricity collection meter and the surge protector are all wall-mounted on the internal ribs of the grid-connected box.

6. The intelligent grid-connected charging station according to claim 1, characterized in that: The photovoltaic panel is assembled together by a plurality of photovoltaic components in an integrated module manner, and the photovoltaic components are single crystal silicon components.

7. The intelligent grid-connected charging station according to claim 1, characterized in that: The rain shelter is composed of a roof frame and several supporting columns, inclined beams and purlins. Sixteen supporting columns are arranged and sequentially distributed at the bottom of the rain shelter roof frame and located at the rear side. Four groups of charging piles are installed at equal intervals between the supporting columns. The inclined beams are provided in five groups and are sequentially installed under the ceiling frame. The inclined beams are V-shaped, and the top supporting part thereof is welded to the ceiling frame; Several beams are transversely connected between the ceiling frames, the purlins are sequentially installed above the beams, and both ends of the several purlins are fixed to the ceiling frames; The photovoltaic panel is installed above the purlin via a fixing piece.

8. The intelligent grid-connected charging station according to claim 7, characterized in that: The roof frame, supporting columns, inclined beams, cross beams and purlins of the rain shelter are all made of steel sections.

9. The intelligent grid-connected charging station according to claim 1, characterized in that: The billboards are arranged in eight groups and are sequentially mounted on the supporting columns on both sides of the charging pile.

10. The intelligent grid-connected charging station according to claim 1, characterized in that: A guardrail is installed above the rain shelter at the rear side, and a ladder is installed on the left side of the rain shelter near the guardrail.

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