CN220764140U - Integrated electric energy distribution and monitoring device for automobile charging station - Google Patents

Integrated electric energy distribution and monitoring device for automobile charging station Download PDF

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CN220764140U
CN220764140U CN202322674457.8U CN202322674457U CN220764140U CN 220764140 U CN220764140 U CN 220764140U CN 202322674457 U CN202322674457 U CN 202322674457U CN 220764140 U CN220764140 U CN 220764140U
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modbus
charging
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张慧君
潘茜茜
张钰鑫
王容笛
蔡明华
石明辉
余大庆
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Henan Longyuan Information Technology Co ltd
Xinyang Normal University
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Xinyang Normal University
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Abstract

The utility model belongs to the technical field of charging station power supply, and particularly relates to an integrated electric energy distribution and monitoring device of an automobile charging station, which comprises a MODBUS local area network and an Internet of things, wherein the MODBUS local area network is a master control network, the Internet of things is a slave control network, and the two networks realize data interconnection through a MODBUS master station controller; a plurality of secondary station protectors are arranged in the MODBUS local area network, and each secondary station protector comprises an electric energy metering module and a solid-state relay; the gateway of the Internet of things belongs to a slave station of the MODBUS local area network, the gateway of the Internet of things is accessed into the MODBUS local area network through a COM port (485 communication mode), the gateway of the Internet of things is linked to the Arian cloud platform, and the PC terminal or the mobile phone terminal is accessed into the Arian cloud platform; the electric energy metering module is used as a secondary station of the MODBUS local area network to collect charging parameters of the electric automobile, and an output control port of the MODBUS master station controller is connected with solid state relays of all charging piles to control on-off of power supply output of the charging piles. The utility model greatly increases the number of charging piles of the charging station on the premise of not improving the limit power supplied by the charging station.

Description

汽车充电站一体化电能分配与监护装置Integrated power distribution and monitoring device for car charging stations

技术领域Technical Field

本实用新型属于充电站供电技术领域,具体涉及一种汽车充电站一体化电能分配与监护装置。The utility model belongs to the technical field of power supply for charging stations, and in particular relates to an integrated electric energy distribution and monitoring device for a vehicle charging station.

背景技术Background technique

发展电动汽车是落实国家节能减排、发展低碳经济要求的重要战略,而加快建设充电设施、建立完善充电服务是促进电动汽车发展和应用的必要条件。电动汽车要想自由的行驶,必须配设能够进行快速充电的专用充电桩。新型电动汽车的蓄电池组容量较大,充电需要较大的功率,尤其是快速充电时所需的实时功率单车达到数十千瓦。The development of electric vehicles is an important strategy to implement the national energy conservation and emission reduction and the development of a low-carbon economy. Accelerating the construction of charging facilities and establishing a complete charging service are necessary conditions for promoting the development and application of electric vehicles. If electric vehicles want to travel freely, they must be equipped with special charging piles that can be charged quickly. The battery pack capacity of new electric vehicles is large, and charging requires a large power, especially when fast charging, the real-time power required for each vehicle reaches tens of kilowatts.

充电桩的快速充电其实质就是大电流直流供给充电,如果保证多个电动汽车都快速充电,那么充电站输出的总功率大的惊人,可能导致充电桩装置不能正常工作或烧毁。鉴于电动汽车充电电流较大,站内配设充电桩的数目通常有一定的限制,通常是30个充电桩左右或稍多一些,单个充电桩输出一般在10千瓦左右,以此为基准,一个电动汽车充电站点输出满载功率约为300千瓦。300千瓦对充电站点而言已经是个非常大的载荷,但30个充电桩最多只能满足30辆电动汽车同时充电,这往往不能满足大数量电动汽车的充电需求。The essence of fast charging of charging piles is high-current DC supply charging. If multiple electric vehicles are guaranteed to charge quickly, the total power output of the charging station will be surprisingly large, which may cause the charging pile device to malfunction or burn out. Given the large charging current of electric vehicles, the number of charging piles installed in the station is usually limited, usually around 30 charging piles or slightly more. The output of a single charging pile is generally around 10 kilowatts. Based on this, the full-load power output of an electric vehicle charging station is about 300 kilowatts. 300 kilowatts is already a very large load for a charging station, but 30 charging piles can only meet the charging of 30 electric vehicles at most at the same time, which often cannot meet the charging needs of a large number of electric vehicles.

发明内容Summary of the invention

为了解决现有技术中存在的问题,本实用新型提出一种汽车充电站一体化电能分配与监护装置,MODBUS主站控制器根据充电桩充电输出的负载和大小决定是否采用PWM模式的快速轮流供电,从而在不提高充电站供给极限功率的前提下大大增加了充电站充电桩的数目。In order to solve the problems existing in the prior art, the utility model proposes an integrated power distribution and monitoring device for a car charging station. The MODBUS master station controller determines whether to adopt a PWM mode of fast rotation power supply according to the load and size of the charging output of the charging pile, thereby greatly increasing the number of charging piles in the charging station without increasing the maximum power supplied by the charging station.

为了实现上述目的,本实用新型采用以下的技术方案:In order to achieve the above purpose, the utility model adopts the following technical solutions:

本实用新型提供了一种汽车充电站一体化电能分配与监护装置,包括MODBUS局域网和物联网,两个网络通过MODBUS主站控制器实现数据互联;所述MODBUS局域网内设有多个从站保护器,每个从站保护器安装在充电站点中一个充电桩的工频电源输入端,所述从站保护器包括电能计量模块和固态继电器;所述MODBUS局域网内还设有物联网关,所述物联网关通过COM口以MODBUS局域网从站的方式接入MODBUS局域网中,物联网关链接至阿里云平台,PC终端或者手机终端接入阿里云平台;所述MODBUS主站控制器的通信口连接多个电能计量模块,采集电动汽车的充电参数;所述MODBUS主站控制器的输出控制口连接各充电桩的固态继电器,控制充电桩供电输出的通断;所述MODBUS主站控制器的通信口连接物联网关。The utility model provides an integrated electric energy distribution and monitoring device for a car charging station, comprising a MODBUS local area network and an Internet of Things, wherein the two networks realize data interconnection through a MODBUS master station controller; a plurality of slave station protectors are arranged in the MODBUS local area network, each of which is installed at the power frequency power input end of a charging pile in the charging station, and the slave station protector comprises an electric energy metering module and a solid-state relay; an Internet of Things gateway is also arranged in the MODBUS local area network, and the Internet of Things gateway is connected to the MODBUS local area network in the form of a MODBUS local area network slave station through a COM port, the Internet of Things gateway is linked to an Alibaba cloud platform, and a PC terminal or a mobile phone terminal is connected to the Alibaba cloud platform; a communication port of the MODBUS master station controller is connected to a plurality of electric energy metering modules to collect charging parameters of electric vehicles; an output control port of the MODBUS master station controller is connected to the solid-state relays of each charging pile to control the on and off of the power supply output of the charging pile; and a communication port of the MODBUS master station controller is connected to the Internet of Things gateway.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述MODBUS主站控制器选用施耐德TM200系列PLC。According to the integrated electric energy distribution and monitoring device for a car charging station of the utility model, further, the MODBUS master station controller uses Schneider TM200 series PLC.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述物联网关选用V-BOX E-4G物联网关,所述V-BOX E-4G物联网关作为MODBUS局域网的一个从站通过COM口接至施耐德TM200系列PLC的485通信串口。According to the integrated power distribution and monitoring device for a car charging station of the utility model, further, the Internet of Things gateway selects a V-BOX E-4G Internet of Things gateway, and the V-BOX E-4G Internet of Things gateway is connected to the 485 communication serial port of the Schneider TM200 series PLC through the COM port as a slave station of the MODBUS local area network.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述V-BOXE-4G物联网关和MODBUS主站控制器安装于主机箱体内,所述主机箱体设置于监控室内。According to the integrated power distribution and monitoring device for a car charging station of the utility model, further, the V-BOXE-4G Internet of Things gateway and the MODBUS master station controller are installed in a mainframe box, and the mainframe box is arranged in a monitoring room.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述电能计量模块采用CL1X电能计量模块,该模块采集充电桩的工频供电电流;所述CL1X电能计量模块的输出端连接有TTL-485转换器。According to the integrated electric energy distribution and monitoring device for a car charging station of the utility model, further, the electric energy metering module adopts a CL1X electric energy metering module, which collects the industrial frequency power supply current of the charging pile; the output end of the CL1X electric energy metering module is connected to a TTL-485 converter.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,多个TTL-485转换器通过菊花链方式接至施耐德TM200系列PLC的485通信串口。According to the integrated electric energy distribution and monitoring device for a car charging station of the utility model, further, a plurality of TTL-485 converters are connected to the 485 communication serial port of the Schneider TM200 series PLC in a daisy chain manner.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述施耐德TM200系列PLC通过级联添加数字模块的方式扩展输出控制口。According to the integrated electric energy distribution and monitoring device for a vehicle charging station of the utility model, further, the Schneider TM200 series PLC expands the output control port by adding digital modules in cascade.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述V-BOXE-4G物联网关配设有物联网流量卡或者RJ45接口,经Internet或移动、联通、电信运营商链接阿里云平台,所述手机终端通过4G/5G网络接入阿里云平台,所述PC终端通过Internet网接入阿里云平台。According to the integrated power distribution and monitoring device for automobile charging stations of the utility model, further, the V-BOXE-4G Internet of Things gateway is equipped with an Internet of Things traffic card or an RJ45 interface, which is connected to the Alibaba Cloud platform via the Internet or China Mobile, China Unicom, and China Telecom operators. The mobile phone terminal accesses the Alibaba Cloud platform through the 4G/5G network, and the PC terminal accesses the Alibaba Cloud platform through the Internet.

根据本实用新型汽车充电站一体化电能分配与监护装置,进一步地,所述从站保护器安装于充电桩箱体的内部或露天安装。According to the integrated electric energy distribution and monitoring device for automobile charging station of the utility model, further, the slave station protector is installed inside the charging pile box or in the open air.

与现有技术相比,本实用新型具有以下优点:Compared with the prior art, the utility model has the following advantages:

本实用新型通过电能计量模块采集电动汽车的充电参数,MODBUS主站控制器读取充电桩的工频供电电流,主站控制器根据实时数据做出对充电桩持续供电或者快速轮流供电的调整,同时主站控制器将采集到的数据下发给物联网关,物联网关经由Internet或移动、联通、电信运营商链接至阿里云平台,实现物联网的远程PC终端和手机终端的数据显示。快速轮流供电模式对于单个电动汽车而言属于宽脉冲供电,这种宽脉冲的断电状态可使电动汽车的充电桩功率器件处于散热状态,给电化学反应足够的时间,提高铅酸或者锂电池化学反应的效率。各批次充电桩的脉冲高电平是分时错开的,从而保证充电站的实时输出总功率低于充电站的输出极限功率,充电站输出总功率能保持在安全范围内,因此本实用新型在不提高充电站供给极限功率的前提下大大增加了充电站充电桩的数目,满足大数量电动汽车的充电需求。The utility model collects the charging parameters of the electric vehicle through the electric energy metering module, and the MODBUS master station controller reads the industrial frequency power supply current of the charging pile. The master station controller makes adjustments to the continuous power supply or rapid rotation power supply of the charging pile according to the real-time data. At the same time, the master station controller sends the collected data to the Internet of Things gateway, and the Internet of Things gateway is linked to the Alibaba Cloud platform via the Internet or mobile, Unicom, and telecom operators to realize the data display of the remote PC terminal and mobile phone terminal of the Internet of Things. The rapid rotation power supply mode belongs to wide pulse power supply for a single electric vehicle. This wide pulse power-off state can make the power device of the charging pile of the electric vehicle in a heat dissipation state, giving enough time for the electrochemical reaction, and improving the efficiency of the chemical reaction of the lead-acid or lithium battery. The pulse high level of each batch of charging piles is staggered in time, so as to ensure that the real-time total output power of the charging station is lower than the output limit power of the charging station, and the total output power of the charging station can be kept within a safe range. Therefore, the utility model greatly increases the number of charging piles in the charging station without increasing the supply limit power of the charging station, and meets the charging needs of a large number of electric vehicles.

附图说明BRIEF DESCRIPTION OF THE DRAWINGS

图1是本实用新型实施例的汽车充电站一体化电能分配与监护装置的拓扑结构图;FIG1 is a topological diagram of an integrated electric energy distribution and monitoring device for a vehicle charging station according to an embodiment of the utility model;

图2是本实用新型实施例的汽车充电站一体化电能分配与监护装置的电路原理图;FIG2 is a circuit diagram of an integrated electric energy distribution and monitoring device for a vehicle charging station according to an embodiment of the utility model;

图3是本实用新型实施例的快速轮流供电的示例图。FIG. 3 is an exemplary diagram of rapid alternating power supply according to an embodiment of the present utility model.

具体实施方式Detailed ways

为了使本技术领域的人员更好地理解本实用新型中的技术方案,下面将结合本实用新型实施例中的附图,对本实用新型实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本实用新型一部分实施例,而不是全部的实施例。In order to enable those skilled in the art to better understand the technical solutions in the present invention, 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 of the embodiments.

如图1所示,本实施例的汽车充电站一体化电能分配与监护装置包括MODBUS局域网和物联网,两个网络通过MODBUS主站控制器实现数据互联。MODBUS局域网内设有多个从站保护器,每个从站保护器安装在充电站点中一个充电桩的工频电源输入端,从站保护器包括电能计量模块和固态继电器,从站保护器可安装于充电桩箱体的内部,也可露天安装,从站保护器的主体电路板安装在防水盒的内部,可防止风雨、灰尘对电路板的损坏。MODBUS局域网内还设有物联网关,物联网关通过COM口以MODBUS局域网从站的方式接入MODBUS局域网中,物联网关链接至阿里云平台,PC终端或者手机终端接入阿里云平台。如图2所示,MODBUS主站控制器的通信口连接多个电能计量模块,采集电动汽车的充电参数;MODBUS主站控制器的输出控制口连接各充电桩的固态继电器,控制充电桩供电输出的通断,MODBUS主站控制器的通信口连接物联网关。As shown in FIG1 , the integrated power distribution and monitoring device for the automobile charging station of this embodiment includes a MODBUS local area network and an Internet of Things, and the two networks realize data interconnection through a MODBUS master station controller. A plurality of slave station protectors are arranged in the MODBUS local area network, each of which is installed at the power frequency power input end of a charging pile in the charging station, and the slave station protector includes an electric energy metering module and a solid-state relay. The slave station protector can be installed inside the charging pile box or in the open air, and the main circuit board of the slave station protector is installed inside the waterproof box to prevent damage to the circuit board by wind, rain and dust. An Internet of Things gateway is also arranged in the MODBUS local area network, and the Internet of Things gateway is connected to the MODBUS local area network through the COM port as a MODBUS local area network slave station, and the Internet of Things gateway is linked to the Alibaba Cloud platform, and the PC terminal or mobile phone terminal is connected to the Alibaba Cloud platform. As shown in FIG2 , the communication port of the MODBUS master station controller is connected to a plurality of electric energy metering modules to collect the charging parameters of the electric vehicle; the output control port of the MODBUS master station controller is connected to the solid-state relay of each charging pile to control the on and off of the power supply output of the charging pile, and the communication port of the MODBUS master station controller is connected to the Internet of Things gateway.

具体的,物联网关选用V-BOX E-4G物联网关,MODBUS主站控制器选用施耐德TM200系列PLC的TM200C16T,选用该PLC是基于MODBUS主站控制器高可靠性、高性价比的工业级应用需求。V-BOX E-4G物联网关和MODBUS主站控制器安装于主机箱体内,主机箱体设置于监控室内。Specifically, the IoT gateway uses V-BOX E-4G IoT gateway, and the MODBUS master controller uses Schneider TM200C16T of the TM200 series PLC. The selection of this PLC is based on the high reliability and high cost-effectiveness of the MODBUS master controller for industrial-grade applications. The V-BOX E-4G IoT gateway and the MODBUS master controller are installed in the mainframe box, which is set in the monitoring room.

电能计量模块采用CL1X电能计量模块,CL1X电能计量模块可同时采集用电负载的电压、电流、有功功率、功率因数、供电频率、无功功率、视在功率、有功电量和电量计时9个电能参数,本实例主要使用到的是充电桩的工频供电电流(供电电压通常为220V交流电),多个充电桩靠其MODBUS从站地址编号来识别区分。每个CL1X电能计量模块的输出端还连接有一个TTL-485转换器,可将串口TTL电平转换为RS485电平,多个TTL-485转换器通过菊花链方式接至施耐德TM200系列PLC的485通信串口。The energy metering module uses the CL1X energy metering module, which can simultaneously collect 9 energy parameters of the load, including voltage, current, active power, power factor, power supply frequency, reactive power, apparent power, active power and power meter. This example mainly uses the power supply current of the charging pile (the power supply voltage is usually 220V AC), and multiple charging piles are identified and distinguished by their MODBUS slave address numbers. The output end of each CL1X energy metering module is also connected to a TTL-485 converter, which can convert the serial port TTL level to RS485 level. Multiple TTL-485 converters are connected to the 485 communication serial port of Schneider TM200 series PLC in a daisy chain manner.

PLC控制器自带一个485通信串口,V-BOX E-4G物联网关作为MODBUS局域网的一个从站通过COM口接至PLC控制器的485通信串口,其中D1接485的+端,D0接485的-端。本实例可以将该物联网关的从站号设为1号,CL1X电能计量模块的从站号依次为2、3、4至135号,PLC控制器读取2号及其他CL1X电能计量模块的数据,并提取所需的电流值打包发送给1号从站V-BOX E-4G物联网关。The PLC controller has a 485 communication serial port. The V-BOX E-4G IoT gateway is connected to the 485 communication serial port of the PLC controller through the COM port as a slave station of the MODBUS LAN, where D1 is connected to the + end of 485 and D0 is connected to the - end of 485. In this example, the slave number of the IoT gateway can be set to 1, and the slave numbers of the CL1X power metering modules are 2, 3, 4 to 135. The PLC controller reads the data of the 2nd and other CL1X power metering modules, extracts the required current value, and sends it to the 1st slave station V-BOX E-4G IoT gateway.

施耐德TM200系列PLC的TM200C16T自带7个输出口,可以实现7个充电桩的保护性输出供电控制,通过级联添加数字模块的方式扩展输出控制口,输出控制口的数目可扩展为135个。The TM200C16T of Schneider's TM200 series PLC has 7 output ports, which can realize the protective output power supply control of 7 charging piles. The output control ports can be expanded by adding digital modules in cascade, and the number of output control ports can be expanded to 135.

V-BOX E-4G物联网关配设有物联网流量卡或者RJ45接口,经Internet或移动、联通、电信运营商链接阿里云平台,手机终端通过4G/5G网络接入阿里云平台,PC终端通过Internet网接入阿里云平台,PC终端或者手机终端通过阿里云平台实现与主控局域网数据交互,系统维护人员及电动汽车车主可通过手机或者PC监控界面获悉到充电桩的实时工作状态。The V-BOX E-4G IoT gateway is equipped with an IoT traffic card or RJ45 interface, which is connected to the Alibaba Cloud platform via the Internet or China Mobile, China Unicom, or China Telecom operators. Mobile terminals access the Alibaba Cloud platform through 4G/5G networks, and PC terminals access the Alibaba Cloud platform through the Internet. PC terminals or mobile terminals can interact with the main control LAN data through the Alibaba Cloud platform. System maintenance personnel and electric vehicle owners can learn about the real-time working status of the charging piles through the mobile phone or PC monitoring interface.

作为优选方案,可在MODBUS局域网中增加一本地人机界面从站,实现从站充电桩电能数据的显示以及对从站充电桩供电输出的操控。As a preferred solution, a local human-machine interface slave station can be added to the MODBUS local area network to display the power data of the slave charging pile and control the power supply output of the slave charging pile.

工作原理如下:Here’s how it works:

假设单个充电桩的输出功率为10千瓦,充电站点的输出极限功率为300千瓦,那么单批次只能满足30个充电桩同时为30辆电动汽车充电,单批次充电电动汽车的最大数目以该充电站所能提供的最大功率为准。为了满足大数量电动汽车的充电需求,将充电桩数目从30个增加到135个,如果同时满足所有电动汽车同时供电总功率可达:10千瓦*135=1350千瓦,远超充电站点的输出极限功率300千瓦,进入快速轮流供电可使充电站点的实时输出总功率保持原数值不变(总功率还是300千瓦)。Assuming that the output power of a single charging pile is 10 kilowatts and the output limit power of the charging station is 300 kilowatts, then a single batch can only meet the needs of 30 charging piles to charge 30 electric vehicles at the same time. The maximum number of electric vehicles charged in a single batch is based on the maximum power that the charging station can provide. In order to meet the charging needs of a large number of electric vehicles, the number of charging piles is increased from 30 to 135. If all electric vehicles are powered at the same time, the total power can reach: 10 kilowatts * 135 = 1350 kilowatts, which far exceeds the output limit power of the charging station of 300 kilowatts. Entering the fast rotation power supply can keep the real-time total output power of the charging station unchanged (the total power is still 300 kilowatts).

正常情况下,MODBUS主站控制器实时轮询监测各个充电桩的电流值,并通过物联网关向手机终端或PC终端发送电参数数据,并可接受终端的控制信息。如果有一个或者多个电动汽车介入充电时,MODBUS主站控制器会实时监测到数据变化,如果在充电汽车的总负载低于充电站点的单批(例如30辆汽车在充电)总负载值(例如300千瓦),充电系统保证为该批电动汽车正常持续供电。如果在充电汽车的总负载高于充电站点的单批总负载值,则检测此时在充电汽车的总数量是否超过单批总数量;若超过且负载值超标,则按照单批总数量的倍数关系,将这些电动汽车分为几批(例如超过30辆分为2批,超过60辆分为3批),并且系统进入快速轮流给各批次电动汽车供电阶段。批次选择的原则以被使用充电桩的站号序数递增为准(例如:2-31号从站充电桩都被使用,则分为第一批次;32-61号从站充电桩都被使用,则分为第二批次;如果中间有某一个站号或多个站号充电桩未被使用,则序号顺延,其他类推)。如图3所示,2批或者3批电动汽车接入充电桩系统时,MODBUS主站控制器实现在固定时段给单批电动汽车以持续的电流供给,然后快速关掉该批电动汽车的供电,切换到下一批次电动汽车的供电,然后循环执行,采用PWM模式的快速轮流供电使得充电站的瞬时总功率不至于超过充电站的极限功率。如果充电汽车的数量减少到使总负载低于充电站点的单批总负载时,恢复给该批次电动汽车正常持续供电。Under normal circumstances, the MODBUS master controller monitors the current value of each charging pile in real time, and sends electrical parameter data to the mobile terminal or PC terminal through the Internet of Things gateway, and can receive control information from the terminal. If one or more electric vehicles are involved in charging, the MODBUS master controller will monitor the data changes in real time. If the total load of the charging cars is lower than the total load value of a single batch (for example, 30 cars are charging) of the charging station (for example, 300 kilowatts), the charging system guarantees normal and continuous power supply for the batch of electric vehicles. If the total load of the charging cars is higher than the total load value of a single batch of the charging station, it is detected whether the total number of charging cars at this time exceeds the total number of a single batch; if it exceeds and the load value exceeds the standard, these electric vehicles are divided into several batches according to the multiple relationship of the total number of single batches (for example, more than 30 vehicles are divided into 2 batches, more than 60 vehicles are divided into 3 batches), and the system enters the stage of fast rotation to supply power to each batch of electric vehicles. The principle of batch selection is based on the increasing sequence of the station numbers of the used charging piles (for example: if the charging piles from stations 2-31 are all used, they are divided into the first batch; if the charging piles from stations 32-61 are all used, they are divided into the second batch; if there is a station number or multiple station numbers in the middle that are not used, the sequence number is postponed, and so on). As shown in Figure 3, when 2 or 3 batches of electric vehicles are connected to the charging pile system, the MODBUS master station controller realizes continuous current supply to a single batch of electric vehicles in a fixed period of time, and then quickly turns off the power supply of the batch of electric vehicles, switches to the power supply of the next batch of electric vehicles, and then executes it in a cycle, using the PWM mode of rapid rotation power supply so that the instantaneous total power of the charging station does not exceed the maximum power of the charging station. If the number of charging vehicles is reduced to the point where the total load is lower than the total load of a single batch of the charging station, the normal continuous power supply to the batch of electric vehicles is restored.

若在充电汽车的总数量没有超过单批总数量(例如30辆汽车在充电)且负载值超标,则逐一检查该批充电桩的输出电流值,则一定有单个或者多个充电桩输出异常,并立即断开该充电桩的供电输出,此时需要人工介入检测维修。If the total number of charging cars does not exceed the total number of a single batch (for example, 30 cars are charging) and the load value exceeds the standard, check the output current value of the batch of charging piles one by one. There must be one or more charging piles with abnormal output, and immediately disconnect the power supply output of the charging pile. At this time, manual intervention is required for detection and maintenance.

MODBUS主站控制器经由V-BOX E-4G物联网关,由阿里云平台互联手机终端或者PC终端,手机终端和PC终端可以读取或者控制充电桩的工作状态。The MODBUS master controller is connected to the mobile terminal or PC terminal through the V-BOX E-4G IoT gateway and the Alibaba Cloud platform. The mobile terminal and PC terminal can read or control the working status of the charging pile.

除非另作定义,此处使用的技术术语或者科学术语应当为本实用新型所属领域内具有一般技能的人士所理解的通常意义。本申请说明书以及权利要求书中使用的 “一个”或者“一”等类似词语也不必然表示数量限制。“包括”或者“包含”等类似的词语意指出现该词前面的元件或物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。Unless otherwise defined, the technical terms or scientific terms used herein shall have the usual meanings understood by persons with ordinary skills in the field to which the utility model belongs. The words "a" or "an" and the like used in the specification and claims of this application do not necessarily indicate a quantity limitation. The words "include" or "comprise" and the like mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

最后需要说明的是:以上所述仅为本实用新型的较佳实施例,仅用于说明本实用新型的技术方案,并非用于限定本实用新型的保护范围。凡在本实用新型的精神和原则之内所做的任何修改、等同替换、改进等,均包含在本实用新型的保护范围内。Finally, it should be noted that the above is only a preferred embodiment of the utility model, which is only used to illustrate the technical solution of the utility model, and is not used to limit the protection scope of the utility model. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model are included in the protection scope of the utility model.

Claims (9)

1. The integrated electric energy distribution and monitoring device for the automobile charging station is characterized by comprising a MODBUS local area network and an Internet of things, wherein the two networks are connected with each other through a MODBUS master station controller; a plurality of secondary station protectors are arranged in the MODBUS local area network, each secondary station protector is arranged at the power frequency power input end of one charging pile in a charging station, and each secondary station protector comprises an electric energy metering module and a solid-state relay; an Internet of things gateway is further arranged in the MODBUS local area network, the Internet of things gateway is connected into the MODBUS local area network through a COM port in a mode of an MODBUS local area network slave station, the Internet of things gateway is connected to an Arian cloud platform, and a PC terminal or a mobile phone terminal is connected into the Arian cloud platform; the communication port of the MODBUS master station controller is connected with a plurality of electric energy metering modules, and charging parameters of the electric automobile are collected; an output control port of the MODBUS master station controller is connected with the solid-state relay of each charging pile to control the on-off of the power supply output of the charging pile; and the communication port of the MODBUS master station controller is connected with the Internet of things gateway.
2. The integrated power distribution and monitoring device of claim 1, wherein the MODBUS master station controller is a schrader (TM) 200 series PLC.
3. The integrated electric energy distribution and monitoring device of the automobile charging station according to claim 2, wherein the internet of things gateway is a V-BOX E-4G internet of things gateway, and the V-BOX E-4G internet of things gateway is used as a slave station of the MODBUS local area network and is connected to a 485 communication serial port of schneider TM200 series PLC through a COM port.
4. The integrated power distribution and monitoring device for a vehicle charging station of claim 3, wherein the V-BOX E-4G internet of things gateway and the MODBUS master station controller are mounted in a mainframe BOX that is disposed in a monitoring room.
5. The integrated power distribution and monitoring device of a vehicle charging station of claim 2, wherein the power metering module is a CL1X power metering module that collects power frequency supply current of the charging post; and the output end of the CL1X electric energy metering module is connected with a TTL-485 converter.
6. The integrated power distribution and monitoring device of claim 5, wherein the plurality of TTL-485 converters are daisy chained to 485 communication serial ports of schrader (TM) 200 series PLCs.
7. The integrated power distribution and monitoring device of a vehicle charging station of claim 2, wherein the schneider (TM) 200 series PLC extends the output control port by cascading digital modules.
8. The integrated electric energy distribution and monitoring device of the automobile charging station according to claim 3, wherein the V-BOX E-4G Internet of things gateway is provided with an Internet of things flow card or RJ45 interface, the Internet of things flow card or RJ45 interface is linked with the oricloud platform through Internet or mobile, mobile and telecom operators, the mobile phone terminal is accessed to the oricloud platform through a 4G/5G network, and the PC terminal is accessed to the oricloud platform through the Internet network.
9. The integrated power distribution and monitoring device of claim 1, wherein the secondary station protector is mounted inside a charging pile housing or in the open air.
CN202322674457.8U 2023-10-07 2023-10-07 Integrated electric energy distribution and monitoring device for automobile charging station Active CN220764140U (en)

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