Centralized control type multi-line intelligent charging pile and power distribution method thereof
Through the design of integrated multi-line intelligent charging piles, the multi-line charging collector and intelligent distribution algorithm are integrated, which solves the problems of high cost, large footprint and insufficient power adjustment capabilities of traditional charging piles, and realizes efficient parallel charging and intelligent power distribution of multiple vehicles, improving equipment utilization and reducing energy waste.
Patent Information
- Application Number
- CN202510545995.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-28
- Publication Date
- 2025-06-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The design of traditional new energy vehicle charging piles has problems such as high equipment purchase costs, large area, uneven distribution of power resources and lack of dynamic power regulation capabilities, resulting in energy waste or equipment overload.
The integrated multi-line intelligent charging pile is adopted, and the multi-vehicle parallel charging function of a single charging pile is realized by integrating the multi-line charging collector and intelligent distribution algorithm, and it supports dynamic power distribution. The charging pile includes a main control module, a multi-line charging collector, an AC/DC conversion module, an IGBT power module, a monitoring module and a human-computer interaction module. It supports dynamic adjustment of output current and voltage, and optimizes power distribution through the MPPT algorithm.
It realizes parallel charging of multiple vehicles, improves equipment utilization rate to more than 80%, reduces peak power consumption by 20%-30% through intelligent power distribution, and reduces initial deployment costs through modular expansion design, and has a fault-tolerant mechanism to ensure the continuous operation of the system.
Smart Images
Figure CN120080749A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of new energy vehicle charging facilities, and particularly relates to a centralized multi-line intelligent charging pile and its power distribution method. Background Art
[0002] Traditional new energy vehicle charging piles usually adopt a single-line output design, and each device can only charge one vehicle. In scenarios such as parking lots and public charging stations, if multiple vehicles need to be served, multiple independent charging piles need to be deployed, resulting in high equipment purchase costs, large floor areas, and uneven distribution of power resources. In addition, existing charging piles lack the ability of dynamic power adjustment and cannot optimize power distribution in real time according to vehicle requirements and grid load, easily causing energy waste or equipment overload. Summary of the Invention
[0003] In order to solve the problems existing in the prior art, the purpose of the present invention is to provide a centralized multi-line intelligent charging pile and its power distribution method. By integrating a multi-line charging controller and an intelligent distribution algorithm, the function of parallel charging of multiple vehicles by a single charging pile is realized, and dynamic power distribution is supported.
[0004] In order to achieve the above invention purpose, the present invention adopts the following technical solutions: A centralized multi-line intelligent charging pile includes a main control module, a multi-line charging controller, an AC / DC conversion module, an IGBT power module, a monitoring module, and a human-machine interaction module; The main control module, with an integrated power dispatching algorithm and communication protocol built-in, is connected to the cloud server and supports remote instruction reception and data upload; The multi-line charging controller includes multiple charging units. The charging units are connected to the main control module through the CAN bus. Each charging unit is configured with an independent charging line. Each charging line is configured with an AC / DC conversion module and an IGBT power module, supporting dynamic adjustment of output current and voltage. Each charging line is correspondingly connected to a charging gun; The monitoring module is used to monitor the current, voltage, and temperature of each charging unit, with a built-in fault diagnosis algorithm that can identify abnormalities such as overload, short circuit, and poor contact; The human-machine interaction module includes a touch screen, which is used to support users to select a charging mode, reserve a charging time, and view the real-time status.
[0005] Further, it also includes an energy storage buffer module, which is configured with a super capacitor or a lithium battery pack for short-term power buffering and peak shaving and valley filling.
[0006] Further, the main control unit is a microcontroller, which is used to dynamically distribute the power of each charging line according to the vehicle battery capacity, state of charge, and grid load.
[0007] Further, it also includes a safety protection module for overvoltage, overcurrent, short - circuit, and leakage protection. When an abnormality occurs, it automatically cuts off the faulty circuit and alarms.
[0008] Further, it also includes a communication module that uses multi - mode communication such as 4G / 5G, Wi - Fi, and Ethernet. The main control module realizes data transmission with the cloud server through the communication module.
[0009] The power distribution method of the charging pile monitors and collects the vehicle battery capacity, SOC (State of Charge), and grid load in real - time through the charging unit, and transmits the information to the main control module for processing. The main control module optimizes the power distribution through the MPPT algorithm and controls the output of the IGBT power module to perform dynamic power adjustment on the charging gun.
[0010] Due to the above - mentioned technical solution, the present invention has the following beneficial effects: 1. Multiple vehicles can charge in parallel. A single charging pile can be expanded into multiple independent charging lines such as 4 - 8, supporting multiple vehicles to charge simultaneously, and the equipment utilization rate is increased to more than 80%.
[0011] 2. Intelligent power distribution, balancing the total power output and vehicle demand through a dynamic algorithm, avoiding grid overload, and reducing peak power consumption by 20% - 30%.
[0012] 3. Modular expansion design, which can flexibly increase or decrease the number of charging lines according to site requirements, reducing the initial deployment cost.
[0013] 4. Fault tolerance mechanism. When a single charging line fails, it is automatically isolated and other charging lines are switched to ensure the continuous operation of the overall system. Brief Description of the Drawings
[0014] Figure 1 It is the block schematic diagram of the present invention. Detailed Embodiment
[0015] The following further elaborates on the technical solution of the present invention with specific embodiments.
[0016] As Figure 1 shown, a centralized multi - line intelligent charging pile includes a main control module, a multi - line charging concentrator, an AC / DC conversion module, an IGBT power module, a monitoring module, and a human - machine interaction module.
[0017] The main control module uses a high - performance microcontroller such as STM32 or FPGA, optimizes power distribution through the MPPT algorithm (Maximum Power Point Tracking), controls the output of the IGBT power module, and integrates a built - in power scheduling algorithm and communication protocol, connecting to the cloud server to support remote instruction reception and data upload.
[0018] Preferably, the main control module adopts multi-mode communication of 4G / 5G, Wi-Fi, and Ethernet. The main control module realizes data transmission with the cloud server through the communication module.
[0019] The multi-line charging centralized controller includes multiple charging units. The charging units are connected to the main control module through the CAN bus. Each charging unit is configured with an independent charging line. Each charging line is configured with an AC / DC conversion module and an IGBT power module. The IGBT power module supports dynamic adjustment of the output current (10A - 250A) and voltage. Each charging line is correspondingly connected to a standardized charging gun (compatible with national standard GB / T, European standard Type 2, etc.) and supports CCS / CHAdeMO protocols.
[0020] The monitoring module is used to monitor the current, voltage, and temperature of each charging unit. It has a built-in fault diagnosis algorithm that can identify abnormalities such as overload, short circuit, and poor contact, and detect the connection status of the charging interface. The monitoring module includes a current sensor, a voltage sensor, and a temperature sensor.
[0021] The human-machine interaction module includes a touch screen, which is used to support users to select the charging mode, reserve the charging time, and view the real-time status.
[0022] As a preferred solution, the present invention further includes an energy storage buffer module, which is configured with a super capacitor or a lithium battery pack for short-term power buffering and peak shaving and valley filling.
[0023] To protect the charging safety, the present invention further includes a safety protection module for overvoltage, overcurrent, short circuit, and leakage protection. When an abnormality occurs, it automatically cuts off the faulty line and alarms.
[0024] The power distribution method of the charging pile monitors and collects the vehicle battery capacity, SOC (state of charge), and grid load in real time through the charging unit, and transmits the information to the main control module for processing. The main control module optimizes the power distribution through the MPPT algorithm, controls the output of the IGBT power module, performs dynamic power adjustment on the charging gun, balances the total power output and vehicle demand, avoids grid overload, and reduces peak power consumption.
[0025] An integrated multi-line intelligent charging pile of the present invention and its power distribution method integrate a multi-line centralized controller into the charging pile host. Each charging line is connected to an independent charging gun through a waterproof cable. After the user inserts the charging gun, the system automatically identifies the vehicle type and reads the battery parameters (such as the maximum charging current and voltage requirements). The main control module calculates the optimal power distribution plan according to the current grid load, energy storage status, and multi-vehicle demand, and controls the output of the IGBT module. At the same time, it monitors the status of each charging line in real time. If the temperature of a certain line exceeds the threshold (such as 65°C) or the current is abnormal, the protection mechanism is immediately triggered.
Claims
1. A centralized multi-line intelligent charging pile, characterized by: It includes main control module, multi-line charging centralized controller, AC / DC conversion module, IGBT power module, monitoring module and human-computer interaction module; The main control module has built-in integrated power dispatching algorithm and communication protocol, connected to the cloud server, and supports remote command reception and data upload; The multi-line charging centralized controller includes multiple charging units, which are connected to the main control module through the CAN bus. Each charging unit is equipped with an independent charging line. Each charging line is equipped with an AC / DC conversion module and an IGBT power module, which supports dynamic adjustment of output current and voltage. Each charging line is connected to a corresponding charging gun. Monitoring module, which is used to monitor the current, voltage and temperature of each charging unit, with built-in fault diagnosis algorithm to identify abnormalities such as overload, short circuit and poor contact; The human-computer interaction module includes a touch screen, which is used to support users to select charging mode, schedule charging time and view real-time status.
2. The centralized multi-line intelligent charging pile according to claim 1 is characterized in that: It also includes an energy storage buffer module, which is configured with a supercapacitor or a lithium battery pack for short-term power buffering and peak shaving.
3. The centralized multi-line intelligent charging pile according to claim 1 is characterized in that: The main control unit is a microcontroller, which is used to dynamically allocate the power of each charging line according to the vehicle battery capacity, charge state and grid load.
4. The centralized multi-line intelligent charging pile according to claim 1 is characterized in that: It also includes a safety protection module for overvoltage, overcurrent, short circuit and leakage protection, which automatically cuts off the faulty line and alarms when an abnormality occurs.
5. The centralized multi-line intelligent charging pile according to claim 1 is characterized in that: It also includes a communication module that uses 4G / 5G, Wi-Fi, and Ethernet multi-mode communications. The main control module realizes data transmission with the cloud server through the communication module.
6. A power distribution method for a charging pile as claimed in claim 1, characterized in that: The charging unit monitors and collects the vehicle battery capacity, SOC (state of charge) and grid load in real time, and transmits the information to the main control module for processing. The main control module optimizes power distribution through the MPPT algorithm, controls the output of the IGBT power module, and dynamically adjusts the power of the charging gun.