Wind and light storage and charging integrated charging pile with intelligent power distribution function

Abstract

The invention relates to a wind and light storage and charging integrated charging pile with an intelligent power distribution function. The charging pile comprises a foldable photovoltaic power generation set, an angle tracking support, a small vertical wind driven generator, a lithium battery energy storage station, a super capacitor, an MPPT controller, a power grid, a bidirectional grid-connected inverter, a charging pile body, a power sensor and an energy storage management controller. The arrangement of the comprehensive storage and charging integrated charging pile is optimized, multi-energy collaborative collection and intelligent distribution are achieved, energy waste is reduced, dependence on a power grid is reduced, hybrid energy storage and precise control over central control are reduced, the service life of an energy storage battery is prolonged, the operation and maintenance cost is reduced, the long-term economy of the system is improved, multi-mode power supply switching and all-around protection design are achieved, and the energy utilization rate is increased. And the charging device is suitable for various outdoor scenes, and is suitable for popularization and application.

Description

Technical Field

[0001] This invention relates to the field of charging piles, and more particularly to an integrated wind, solar, energy storage and charging charging pile with intelligent power distribution. Background Technology

[0002] With the increasing severity of the global energy crisis and environmental pollution, the development of new energy vehicles has received widespread attention. As a crucial supporting facility for new energy vehicles, the performance and intelligence of charging piles directly impact the user experience and promotional effectiveness. Traditional charging piles mostly rely on a single power grid, resulting in low energy efficiency and significant grid impact. Especially during peak electricity consumption periods, excessive grid load can easily lead to charging interruptions or reduced charging speeds, causing inconvenience to users. Therefore, a wind-solar-storage-charging integrated charging pile with intelligent power distribution is designed. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated wind, solar, energy storage, and charging pile with intelligent power distribution to solve the above-mentioned technical problems. To achieve the above objective, this invention adopts the following technical solution: An integrated wind-solar-storage-charging pile with intelligent power distribution includes a foldable photovoltaic power generation unit, an angle tracking bracket, a small vertical wind turbine, a lithium battery energy storage station, a supercapacitor, an MPPT controller, a power grid, a bidirectional grid-connected inverter, a charging pile, a power sensor, and an energy storage management controller. The angle tracking bracket is installed on the bottom side of the foldable photovoltaic power generation unit. Both the foldable photovoltaic power generation unit and the small vertical wind turbine are connected to the MPPT controller via power lines. A power sensor is connected to the power lines between the foldable photovoltaic power generation unit, the small vertical wind turbine, and the MPPT controller. The supercapacitor is connected in series with the lithium battery energy storage station, and its upper end is connected to the MPPT controller. The upper end of the bidirectional grid-connected inverter is connected to the lithium battery energy storage station via the energy storage management controller. The power grid is connected to the bidirectional grid-connected inverter via power lines. The charging pile is connected to the bidirectional grid-connected inverter via power lines. The power sensor and the energy storage management controller are both connected to the charging pile via signal lines.

[0004] Based on the above technical solution, a grid current and voltage sensor is connected to the power line between the grid and the bidirectional grid-connected inverter. An integrated sensor controller is installed inside the charging pile. A charging gun is connected to the charging pile. An external battery status sensor is installed between the charging piles. The external battery status sensor, grid current and voltage sensor, power sensor, and energy storage management controller are all connected to the integrated sensor controller via signal lines.

[0005] Compared with existing technologies, the present invention has the following advantages: The present invention optimizes the setting of integrated energy storage and charging piles, promotes multi-energy collaborative collection and intelligent distribution, reduces energy waste, reduces dependence on the power grid, and enables precise control of hybrid energy storage and central control, thereby extending the life of energy storage batteries, reducing operation and maintenance costs, improving the long-term economic efficiency of the system, and features multi-mode power supply switching and all-round protection design to reduce charging interruptions, improve the protection capability against harsh environments, adapt to various outdoor scenarios, and is suitable for widespread use. Attached Figure Description

[0006] Figure 1 This is a diagram showing the overall appearance of the present invention.

[0007] Figure 2 This is a schematic diagram of the planar connection of the present invention.

[0008] In the diagram: 1. Foldable photovoltaic power generation unit; 2. Angle tracking bracket; 3. Small vertical wind turbine; 4. Lithium battery energy storage station; 5. Supercapacitor; 6. MPPT controller; 7. Power grid; 8. Bidirectional grid-connected inverter; 9. Charging pile; 10. Power sensor; 11. Energy storage management controller; 12. Power line; 13. Signal line; 14. Power grid current and voltage sensor; 15. Integrated sensor controller; 16. Charging gun; 17. External battery status sensor. Detailed Implementation

[0009] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0010] A wind-solar-storage-charging integrated charging pile with intelligent power distribution includes a foldable photovoltaic power generation unit 1, an angle tracking bracket 2, a small vertical wind turbine 3, a lithium battery energy storage station 4, a supercapacitor 5, an MPPT controller 6, a power grid 7, a bidirectional grid-connected inverter 8, a charging pile 9, a power sensor 10, and an energy storage management controller 11. The angle tracking bracket 2 is installed on the bottom side of the foldable photovoltaic power generation unit 1. Both the foldable photovoltaic power generation unit 1 and the small vertical wind turbine 3 are connected to the MPPT controller 6 via power lines 12. A power sensor 10 is connected to the power line 12 between the small vertical wind turbine 3 and the MPPT controller 6. The supercapacitor 5 is connected in series with the lithium battery energy storage station 4. The upper end of the supercapacitor 5 is connected to the MPPT controller 6. The upper end of the bidirectional grid-connected inverter 8 is connected to the lithium battery energy storage station 4 through the energy storage management controller 11. The power grid 7 is connected to the bidirectional grid-connected inverter 8 through the power line 12. The charging pile 9 is connected to the bidirectional grid-connected inverter 8 through the power line 12. The power sensor 10 and the energy storage management controller 11 are both connected to the charging pile 9 through the signal line 13.

[0011] A grid current and voltage sensor 14 is connected to the power line 12 between the grid 7 and the bidirectional grid-connected inverter 8. A comprehensive sensor controller 15 is installed inside the charging pile 9. A charging gun 16 is connected to the charging pile 9. An external battery status sensor 17 is installed between the charging pile 16 and the charging pile 9. The external battery status sensor 17, the grid current and voltage sensor 14, the power sensor 10, and the energy storage management controller 11 are all connected to the comprehensive sensor controller 15 via signal lines 13.

[0012] In practical applications, the working principle of this integrated energy storage and charging pile consists of: a wind-solar hybrid acquisition unit, a hybrid energy storage system, a grid interaction interface, a multi-dimensional sensing module, and an intelligent allocation algorithm.

[0013] The wind-solar hybrid acquisition unit is equipped with a foldable photovoltaic power generation unit 1, which can be designed with a power of 3-5kW and a conversion efficiency of ≥23% photovoltaic modules, and a small vertical wind turbine 3, which can be designed with a power of 2-4kW and a starting wind speed of ≤3m / s wind power generation modules. The foldable photovoltaic power generation unit 1 tracks the sun's trajectory through the angle tracking bracket 2 (0°-90° adjustable) to improve power generation efficiency; the output of both is connected to the MPPT controller 6 to maximize the collection of wind and solar energy.

[0014] Hybrid energy storage system: It adopts a hybrid energy storage design of "lithium battery + supercapacitor". The lithium battery energy storage station 44 undertakes the basic energy storage task, while the supercapacitor 5 is responsible for smoothing the fluctuations of wind and solar power generation and instantaneous high current output, reducing the impact on the lithium battery. The energy storage system is equipped with a bidirectional DC / DC converter, which supports seamless switching between charging and discharging modes.

[0015] Grid interaction interface: Set up a bidirectional grid-connected inverter 8 to realize the bidirectional functions of "wind, solar and energy storage → grid" reverse power supply and "grid → energy storage" power replenishment. When the grid fails, it will automatically switch to off-grid mode to ensure charging continuity.

[0016] Multi-dimensional sensing module: Each charging gun is equipped with an external battery status sensor 17 (detecting SOC, voltage, and temperature) to collect the charging needs of the vehicle to be charged in real time; a power sensor 10 is installed on the wind and solar side, an energy storage management controller 11 is installed on the energy storage side, and a voltage and current sensor 14 is installed on the grid side to realize full energy link data monitoring.

[0017] Intelligent power allocation algorithm: The integrated sensor controller 15 has a built-in power allocation algorithm based on reinforcement learning. It integrates four dimensions: power sensor 10, energy storage management controller 11, voltage and current sensor 14, and external battery status sensor 17, to dynamically allocate the power of each charging gun 16. For example, during peak grid periods, wind, solar and energy storage are given priority; during flat periods, the power supply of the grid and energy storage is balanced; and during off-peak periods, the grid is used to supplement the energy storage.

[0018] Multi-gun coordinated control: Supports simultaneous charging of multiple guns, adopts the principle of "demand priority + efficiency optimization", and uses the monitoring of external battery status sensor 17 to prioritize the allocation of high power to vehicles in emergency charging and dynamically adjust the power for ordinary vehicles; when wind and solar power generation suddenly increases, it automatically increases the charging power or replenishes the energy storage to avoid energy waste.

[0019] The above description represents a preferred embodiment of the present invention. For those skilled in the art, any changes, modifications, substitutions, and variations made to the implementation methods without departing from the principles and spirit of the present invention, based on the teachings of the present invention, still fall within the protection scope of the present invention.

Claims

1. A wind-solar-storage-integrated charging pile with intelligent power distribution, characterized in that, Including foldable photovoltaic power generation group (1), angle tracking support (2), small vertical wind turbine (3), lithium battery energy storage station (4), super capacitor (5), MPPT controller (6), power grid (7), bidirectional grid-connected inverter (8), charging pile (9), power sensor (10), energy storage management controller (11), the angle tracking support (2) is arranged at the bottom side of the foldable photovoltaic power generation group (1), the foldable photovoltaic power generation group (1) and small vertical wind turbine (3) are connected with MPPT controller (6) through power line (12), the power line (12) between the foldable photovoltaic power generation group (1) and small vertical wind turbine (3) and MPPT controller (6) is connected with power sensor (10), the super capacitor (5) is connected in series on the lithium battery energy storage station (4), the upper end of the super capacitor (5) is connected with MPPT controller (6), the upper end of the bidirectional grid-connected inverter (8) is connected with lithium battery energy storage station (4) through energy storage management controller (11), the power grid (7) is connected with bidirectional grid-connected inverter (8) through power line (12), the charging pile (9) is connected with bidirectional grid-connected inverter (8) through power line (12), the power sensor (10) and energy storage management controller (11) are connected with charging pile (9) through signal line (13).

2. The wind-solar-storage integrated charging pile with intelligent power distribution according to claim 1, characterized in that, The power line (12) between the power grid (7) and bidirectional grid-connected inverter (8) is connected with power grid current and voltage sensor (14), the charging pile (9) is internally provided with comprehensive sensing controller (15), the charging pile (9) is connected with charging gun (16), the charging pile (16) and charging pile (9) are provided with external load battery state sensor (17), the external load battery state sensor (17), power grid current and voltage sensor (14), power sensor (10), energy storage management controller (11) are connected with comprehensive sensing controller (15) through signal line (13).

Images