Energy storage automobile charging pile and charging method thereof

Abstract

The invention discloses an energy storage automobile charging pile and a charging method thereof.The energy storage automobile charging pile comprises a charging pile body, an energy storage module is installed in the charging pile body, the energy storage module adopts an efficient lithium battery and is combined with a super capacitor to optimize energy storage and release performance, and the input end and the output end of the energy storage module are each provided with a rectifier. The rectifier is used for converting direct current electric energy in the energy storage module into electric energy suitable for the electric automobile or converting alternating current of a power grid into direct current needed by the energy storage module, the energy storage module is electrically connected with charging interfaces used for providing charging connection for the electric automobile, and the charging interfaces are divided into standard direct current interfaces and alternating current interfaces. According to the energy storage automobile charging pile, the load pressure of a power grid can be effectively relieved, the charging efficiency of the charging pile is improved, the service life of an energy storage system is prolonged, power dispatching is optimized, and meanwhile the charging experience of an electric automobile is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile charging piles, and in particular to an energy storage automobile charging pile and a charging method thereof. Background Art

[0002] With the promotion and popularization of new energy electric vehicles, the demand for charging infrastructure is also growing. Most of the existing electric vehicle charging piles rely on direct power supply from the power grid. However, with the increasing number of electric vehicles, the load pressure of traditional power grids is increasing, especially during peak hours, the fluctuation of power demand may lead to the instability of the power grid, and even the problem of "difficult charging"; in addition, due to the large demand for electricity in the charging process of electric vehicles, the power grid in some areas cannot provide sufficient charging power in time, thus limiting the distribution and deployment of electric vehicle charging piles.

[0003] In order to meet this challenge, many solutions attempt to improve the efficiency of charging piles by combining energy storage systems with charging piles to optimize charging loads and balance grid fluctuations. However, energy storage charging piles in existing technologies are mostly limited to simple energy storage functions and cannot efficiently achieve power dispatch and operation. In actual operation, there are also problems such as low energy storage efficiency, long charging time, and low energy utilization. Therefore, how to use the combination of energy storage systems and electric vehicle charging piles to improve grid load balance and charging efficiency has become an urgent problem to be solved in current electric vehicle charging technology. Summary of the invention

[0004] In view of the above situation, in order to make up for the above-mentioned existing defects, the present invention provides an energy storage vehicle charging pile and a charging method thereof. The energy storage vehicle charging pile can effectively alleviate the load pressure of the power grid, improve the charging efficiency of the charging pile and the service life of the energy storage system, optimize power scheduling, and improve the charging experience of electric vehicles.

[0005] The present invention proposes an energy storage automobile charging pile, including a charging pile, in which an energy storage module is installed, the energy storage module adopts a high-efficiency lithium battery and is combined with a supercapacitor to optimize energy storage and release performance, and a rectifier is provided at the input and output ends of the energy storage module, and the rectifier is used to convert the DC power in the energy storage module into electric energy suitable for electric vehicles, or to convert the AC power of the power grid into the DC power required by the energy storage module, and the energy storage module is electrically connected to a charging interface for providing a charging connection for the electric vehicle, and the charging interface is divided into a standard DC and AC interface.

[0006] Furthermore, the energy storage module is electrically connected to a battery management system, which is used to monitor the charging and discharging status of the energy storage module in real time. The battery management system also monitors the voltage, current and temperature data of the energy storage module in real time, so as to ensure the safe operation of the energy storage module when charging the electric vehicle and extend the service life of the high-efficiency lithium battery.

[0007] Furthermore, the energy storage module is electrically connected to a power dispatching control unit, which is used to intelligently dispatch charging current and optimize power usage according to grid load, charging demand of electric vehicles and power status of the energy storage module.

[0008] Among them, the power dispatching control unit is equipped with an artificial intelligence-based power dispatching algorithm. The power dispatching algorithm can combine big data analysis and perform intelligent dispatching by real-time monitoring of grid load, electric vehicle charging demand and the power status of the energy storage module, so as to select the appropriate charging mode according to different time periods and different grid load conditions, and dynamically adjust the charging power, so that the charging pile can maximize the balance of grid load, optimize the use of electricity, avoid grid overload, and improve charging efficiency.

[0009] The power dispatch control unit is electrically connected to an intelligent communication system, and the intelligent communication system is wirelessly connected to the power grid, user terminals and other charging piles to achieve functions of remote monitoring, data transmission and charging reservation. A charging method for an energy storage vehicle charging pile specifically includes the following steps:

[0010] Step 1. The electric vehicle selects a suitable charging interface to connect to the charging pile. The charging pile communicates with the power grid and the electric vehicle through an intelligent communication system to obtain the current battery charging status and charging requirements of the electric vehicle. At the same time, the power dispatching control unit of the charging pile analyzes the current power grid load through a power dispatching algorithm, evaluates the available power of the power grid and the power status of the charging pile energy storage module, so as to select a suitable charging mode to charge the electric vehicle.

[0011] Step 2: During the charging process, the power dispatch control unit dynamically adjusts the charging power and current according to the charging needs of the electric vehicle, battery status and grid load to avoid grid overload and maximize charging efficiency.

[0012] Step 3: When the electric vehicle battery is fully charged or reaches the set power requirement, the charging pile automatically stops charging and sends a notification to the user terminal through the intelligent communication system.

[0013] Step 4: When the grid load is high or the grid cannot provide sufficient charging power, the charging pile will give priority to using the energy storage module to provide power to charge the electric vehicle, so as to effectively reduce the burden on the grid, avoid power shortages during peak hours, and ensure the normal operation of the grid.

[0014] Step 5: When the energy storage module is being charged through the power grid, the battery management system can monitor the charging and discharging status of the battery in real time to ensure charging safety and efficiency.

[0015] Step 6: When the grid load is low, the charging pile obtains electricity from the grid through the energy storage module, and automatically adjusts the charging power according to the information fed back by the battery management system during the charging process to achieve fast charging.

[0016] Step 7: The energy storage module is charged during off-peak hours and the remaining electrical energy is stored in the energy storage unit for subsequent charging needs.

[0017] Step 8. During the charging process, the power dispatching system of the charging pile will make intelligent adjustments based on the battery charging curve, charging status and grid conditions to optimize the charging time and power utilization.

[0018] The beneficial effects achieved by the present invention using the above structure are as follows: The advantages of the energy storage vehicle charging pile and the charging method thereof of the present invention are:

[0019] 1. By combining high-efficiency lithium batteries and supercapacitors, the present invention can maintain high energy density in the energy storage module while providing fast charging and discharging capabilities, optimize the storage and release of electrical energy, and meet the requirements for energy density and instantaneous power output during the charging process of electric vehicles.

[0020] 2. The present invention uses an artificial intelligence-based power dispatching algorithm to dynamically adjust charging power and current, optimize grid load, avoid grid overload, and improve charging efficiency through real-time data analysis and big data processing. By analyzing grid load, electric vehicle charging demand and the power status of the energy storage module, the charging current is intelligently dispatched, so that the charging pile can select the appropriate charging mode according to different time periods and different grid conditions to maximize the utilization of electricity.

[0021] 3. The present invention can intelligently adjust the charging power according to the charging needs of the electric vehicle, the battery status and the grid load through the power dispatching unit to ensure high efficiency in the charging process while avoiding excessive pressure on the grid. When the grid load is high, the power of the energy storage module is used for charging first, thereby reducing the burden on the grid, avoiding power shortages during peak hours, ensuring the normal operation of the grid, and further improving the stability and pressure resistance of the grid.

[0022] 4. The present invention ensures the safety of the charging process by real-time monitoring of the voltage, current, temperature and charge and discharge status of the energy storage module. At the same time, the battery management system helps to extend the service life of high-efficiency lithium batteries, reduce the risk of failure, and ensure the safe operation of batteries and charging equipment through intelligent monitoring and real-time adjustment of the charging process, avoiding potential safety problems such as overcharging, over-discharging or abnormal temperature.

[0023] 5. The present invention facilitates user operation and management by wirelessly connecting the intelligent communication system with the power grid, user terminals and other charging piles. During the charging process, the power dispatching control unit makes precise adjustments according to the battery charging status, charging curve and power grid conditions to optimize the charging time and power utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 The working process of the energy storage vehicle charging pile and the charging method thereof of the present invention is as follows Figure 1 ;

[0026] Figure 2 The working process of the energy storage vehicle charging pile and the charging method thereof of the present invention is as follows Figure 2 . DETAILED DESCRIPTION

[0027] The technical solutions 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 only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0029] like Figure 1 and Figure 2As shown, the technical solution adopted by the present invention is as follows: an energy storage automobile charging pile proposed by the present invention includes a charging pile, an energy storage module is installed in the charging pile, the energy storage module adopts a high-efficiency lithium battery, and is combined with a supercapacitor to optimize the energy storage and release performance, a rectifier is provided at the input and output ends of the energy storage module, the rectifier is used to convert the DC power in the energy storage module into power suitable for electric vehicles, or to convert the AC power of the power grid into the DC power required by the energy storage module, the energy storage module is electrically connected to a charging interface for providing a charging connection for the electric vehicle, the charging interface is divided into a standard DC and AC interface, the energy storage module is electrically connected to a battery management system, the battery management system is used to monitor the charging and discharging status of the energy storage module in real time, and the battery management system also monitors the voltage, current, and temperature data of the energy storage module in real time In order to ensure the safe operation of the energy storage module when charging electric vehicles and extend the service life of high-efficiency lithium batteries, the energy storage module is electrically connected to a power dispatching control unit, which is used to intelligently dispatch the charging current and optimize power usage according to the grid load, the charging demand of the electric vehicle and the power status of the energy storage module. The power dispatching control unit has a built-in power dispatching algorithm based on artificial intelligence. The power dispatching algorithm can be combined with big data analysis to perform intelligent dispatching by real-time monitoring of the grid load, the charging demand of the electric vehicle and the power status of the energy storage module, so as to select the appropriate charging mode according to different time periods and different grid load conditions, and dynamically adjust the charging power, so that the charging pile can maximize the balance of the grid load, optimize the use of electricity, avoid grid overload, and improve the charging efficiency.

[0030] Among them, the power dispatching control unit is electrically connected to the intelligent communication system, and the intelligent communication system is wirelessly connected with the power grid, user terminals and other charging piles to realize the functions of remote monitoring, data transmission and charging reservation.

[0031] Specific use: The electric vehicle selects a suitable charging interface to connect to the charging pile. The charging pile communicates with the power grid and the electric vehicle through the intelligent communication system to obtain the current battery charging status and charging needs of the electric vehicle. At the same time, the power dispatching control unit of the charging pile analyzes the current grid load through the power dispatching algorithm, evaluates the available power of the grid and the power status of the charging pile energy storage module, so as to select the appropriate charging mode to charge the electric vehicle. During the charging process, the power dispatching control unit dynamically adjusts the charging power and current according to the charging needs, battery status and grid load of the electric vehicle to avoid grid overload and maximize charging efficiency. When the electric vehicle battery is full or reaches the set power requirement, the charging pile automatically stops charging and sends a notification to the user terminal through the intelligent communication system. When the grid load is high or the grid cannot provide When sufficient charging power is available, the charging pile will give priority to using the energy storage module to provide power to charge the electric vehicle, so as to effectively reduce the burden on the power grid, avoid power shortages during peak hours, and ensure the normal operation of the power grid. During the charging process through the power grid, the energy storage module can monitor the battery's charge and discharge status in real time through the battery management system to ensure charging safety and efficiency. When the power grid load is low, the charging pile obtains electricity from the power grid through the energy storage module, and automatically adjusts the charging power according to the information feedback from the battery management system during the charging process to achieve fast charging. The energy storage module is charged during non-peak hours and the remaining electricity is stored in the energy storage unit for subsequent charging needs. During the charging process, the power dispatching system of the charging pile will make intelligent adjustments based on the battery's charging curve, charging status and power grid conditions to optimize the charging time and power utilization.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, material or apparatus including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, material or apparatus.

[0033] 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 energy storage vehicle charging pile, comprising a charging pile, wherein an energy storage module is installed in the charging pile, wherein the energy storage module adopts a high-efficiency lithium battery and is combined with a supercapacitor to optimize energy storage and release performance, wherein a rectifier is provided at both the input and output ends of the energy storage module, wherein the rectifier is used to convert the DC power in the energy storage module into power suitable for an electric vehicle, or to convert the AC power of a power grid into the DC power required by the energy storage module, wherein the energy storage module is electrically connected to a charging interface for providing a charging connection for the electric vehicle, wherein the charging interface is divided into a standard DC and AC interface.

2. The energy storage vehicle charging pile according to claim 1, characterized in that: The energy storage module is electrically connected to a battery management system, which is used to monitor the charging and discharging status of the energy storage module in real time. The battery management system also monitors the voltage, current and temperature data of the energy storage module in real time.

3. The energy storage vehicle charging pile according to claim 2, characterized in that: The energy storage module is electrically connected to a power dispatching control unit, which is used to intelligently dispatch charging current and optimize power usage according to grid load, charging demand of electric vehicles and power status of the energy storage module.

4. The energy storage vehicle charging pile according to claim 3, characterized in that: The power dispatch control unit is equipped with an artificial intelligence-based power dispatch algorithm, which can be combined with big data analysis to perform intelligent dispatch by real-time monitoring of grid load, electric vehicle charging demand, and the power status of energy storage modules.

5. The energy storage vehicle charging pile according to claim 4, characterized in that: The power dispatching control unit is electrically connected to an intelligent communication system, and the intelligent communication system is wirelessly connected to a power grid, a user terminal and other charging piles.

6. A charging method for an energy storage vehicle charging pile according to any one of claims 1 to 5, characterized in that: The specific steps include: Step 1: The electric vehicle selects a suitable charging interface to connect to the charging pile. The charging pile communicates with the power grid and the electric vehicle through an intelligent communication system to obtain the current battery charging status and charging requirements of the electric vehicle. At the same time, the power dispatching control unit of the charging pile analyzes the current grid load through a power dispatching algorithm, evaluates the available power of the grid and the power status of the charging pile energy storage module, so as to select a suitable charging mode to charge the electric vehicle. Step 2: During the charging process, the power dispatch control unit dynamically adjusts the charging power and current according to the charging needs of the electric vehicle, battery status and grid load to avoid grid overload and maximize charging efficiency. Step 3: When the electric vehicle battery is fully charged or reaches the set power requirement, the charging pile automatically stops charging and sends a notification to the user terminal through the intelligent communication system. Step 4: When the grid load is high or the grid cannot provide sufficient charging power, the charging pile will give priority to using the energy storage module to provide power to charge the electric vehicle, so as to effectively reduce the burden on the grid, avoid power shortages during peak hours, and ensure the normal operation of the grid. Step 5: When the energy storage module is charging through the power grid, the battery management system can monitor the battery's charging and discharging status in real time to ensure charging safety and efficiency. Step 6: When the grid load is low, the charging pile obtains electricity from the grid through the energy storage module, and automatically adjusts the charging power according to the information fed back by the battery management system during the charging process to achieve fast charging. Step 7: The energy storage module is charged during off-peak hours and the remaining electrical energy is stored in the energy storage unit for subsequent charging needs. Step 8: During the charging process, the power dispatching system of the charging pile will make intelligent adjustments based on the battery's charging curve, charging status, and grid conditions to optimize the charging time and power utilization.

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