CN113525133A - 一种随变压器容量动态分配的柔性直流充电*** - Google Patents

一种随变压器容量动态分配的柔性直流充电*** Download PDF

Info

Publication number
CN113525133A
CN113525133A CN202110765773.9A CN202110765773A CN113525133A CN 113525133 A CN113525133 A CN 113525133A CN 202110765773 A CN202110765773 A CN 202110765773A CN 113525133 A CN113525133 A CN 113525133A
Authority
CN
China
Prior art keywords
charging
transformer
flexible
capacity
module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110765773.9A
Other languages
English (en)
Inventor
王险峰
王保伦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shandong Mingda Electric Appliance Co ltd
Original Assignee
Shandong Mingda Electric Appliance Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shandong Mingda Electric Appliance Co ltd filed Critical Shandong Mingda Electric Appliance Co ltd
Priority to CN202110765773.9A priority Critical patent/CN113525133A/zh
Publication of CN113525133A publication Critical patent/CN113525133A/zh
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/30—Constructional details of charging stations
    • B60L53/31—Charging columns specially adapted for electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14—Conductive energy transfer
    • B60L53/16—Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00—Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/60—Monitoring or controlling charging stations
    • B60L53/62—Monitoring or controlling charging stations in response to charging parameters, e.g. current, voltage or electrical charge
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
    • H02J7/04—Regulation of charging current or voltage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/70—Smart grids as climate change mitigation technology in the energy generation sector
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/70—Energy storage systems for electromobility, e.g. batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/72—Electric energy management in electromobility
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/12—Electric charging stations
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/14—Plug-in electric vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10—Technologies relating to charging of electric vehicles
    • Y02T90/16—Information or communication technologies improving the operation of electric vehicles
    • Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
    • Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
    • Y04S30/12—Remote or cooperative charging

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

本发明公开了直流充电领域的一种随变压器容量动态分配的柔性直流充电***，包括分体式充电桩主机、剩余容量监控模块、充电模块和充电终端，所述分体式充电桩主机由功率转换主回路和控制***组成。本发明利用剩余容量监控模块记录变压器运行状态，通过4G网络传输，把数据传到后台***，后台***可以通过大数据分析，预测变压器使用容量变化状态，可以进行更合理的资源配置，提有效的高电力容量和电力设备的利用率，通过合理的配置，最大可能的满足用户的充电需求，控制过程简单，且开关器件较少，维修维护过程简单，通过对变压器剩余容量、变压器实时运行的电压电流功率进行实时的检测，***安全等级高。

Description

一种随变压器容量动态分配的柔性直流充电***
技术领域
本发明涉及直流充电领域，具体是一种随变压器容量动态分配的柔性直流充电***。
背景技术
随着新能源汽车的快速发展，充电桩的需求越来越大，传统的充电桩分为直流充电桩和交流充电桩。直流充电桩输出功率大，能为电动汽车快速充电，公共停车场大部分建设的也是直流充电桩。
直流充电桩又分为一体式直流充电桩和分体式直流充电桩。一体式直流充电桩结构简单，适合批量化生产，但在充电站使用过程中充电桩功率利用率比较低。分体式充电桩主机和充电枪终端分离，根据充电桩终端获取电动汽车的需求功率，主机为每个充电枪终端分配模块数量和调整功率，一定程度上提高了充电桩的利用率。
对于带有功率自动分配功能的直流充电桩内部的元器件的布置和带功率自动分配功能充电桩内部部分实际接线，为完成功率自动分配，需要接入大量直流接触器等器件，出于安全考虑(不同输出接口之间的继电器要求互锁等)，还需要增加专门的监控措施(继电器开关状态监测等电路)，有部分厂家、公司的充电桩产品，采用了开关选择模块；但其本质并未改变，只是把大量的接触器集成在一个电器盒内，这样仅仅是方便了组装(但开关选择模块需要提前制作)，售后维护时出现的故障照样难以排查。
总结功率自动分配的分体式充电桩有以下缺点：
1、控制比较复杂，算法比较麻烦，需要大量的IO口控制直流接触器。随着充电终端数量的增加，直流接触器的数量成指数级增加。
2、大量开关器件的存在，***的安全性降低。任何一个直流接触器黏连，都有直流输出短路的风险。
3、由于整个充电桩比较复杂，物料成本和制造成本较高。复杂的硬件导致故障点增多，维修维护比较麻烦。
4、基于单个模块进行功率分配，单个模块的功率就决定了功率分配的幅值，不能实现完全的柔性充电。随着技术的发展革新，单个模块功率越做越大，市场主流从15kW、20KW功率的模块，到现在30kW功率的模块，单纯的切换接触器失去了柔性充电的作用。
另外，充电模块作为大功率的电源转换器件，室外防护等级不高的环境下长时间使用后，有很高的故障率。基于充电模块为核心的功率分配模块，单个充电模块的故障，会对整个***造成重大的影响。随着技术的发展，充电模块价格逐年降低，很多地方变压器扩容困难，充电模块冗余的柔性充电的方案有了落地的基础。
因此，本领域技术人员提供了一种随变压器容量动态分配的柔性直流充电***，以解决上述背景技术中提出的问题。
发明内容
本发明的目的在于提供一种随变压器容量动态分配的柔性直流充电***，以解决上述背景技术中提出的问题。
为实现上述目的，本发明提供如下技术方案：
一种随变压器容量动态分配的柔性直流充电***，包括分体式充电桩主机、剩余容量监控模块、充电模块和充电终端，所述分体式充电桩主机由功率转换主回路和控制***组成，所述功率转换主回路由变压器三相电进行取电，通过充电模块进行AC/DC转换，充电模块输出端DC+/DC-通过少量的直流接触器进行分配投切，连接到每个充电枪终端。
作为本发明进一步的方案：所述充电模块总功率大于变压器容量，有一定的冗余，通过控制运算保障总使用功率小于变压器剩余容量，尽量满足充电需求，做到柔性功率切换充电。
作为本发明进一步的方案：所述控制***由冗余模块柔性充电控制器、充电模块控制器、功率分配继电器控制器和充电终端的充电控制器组成。
作为本发明进一步的方案：所述冗余模块柔性充电控制器是核心控制器，通过和外部的剩余容量监控模块实时获取变压器剩余容量。
作为本发明进一步的方案：所述冗余模块柔性充电控制器通过运算后控制充电模块控制器和功率分配继电器控制器对充电模块和分配继电器进行配置，获取充电终端的需求功率参数。
作为本发明进一步的方案：外部的剩余容量监控模块通过数字电表和交流互感器对变压器实时运行的电压电流功率等参数进行监测。
作为本发明进一步的方案：外部的剩余容量监控模块与变压器内部监测***进行485通信，进行监测对比后，可以准确的计算出变压器剩余可用容量。
作为本发明进一步的方案：外部的剩余容量监控模块与分体式充电桩主机的冗余模块充电控制器进行CAN通信，把数据实时传输给充电桩。
作为本发明进一步的方案：在建充电桩之前先利用剩余容量监控模块记录变压器运行状态，通过4G网络传输，把数据传到后台***，后台***可以通过大数据分析，预测变压器使用容量变化状态，可以进行更合理的资源配置。
与现有技术相比，本发明的有益效果是：
本发明利用剩余容量监控模块记录变压器运行状态，通过4G网络传输，把数据传到后台***，后台***可以通过大数据分析，预测变压器使用容量变化状态，可以进行更合理的资源配置，提有效的高电力容量和电力设备的利用率，通过合理的配置，最大可能的满足用户的充电需求，控制过程简单，且开关器件较少，维修维护过程简单，通过对变压器剩余容量、变压器实时运行的电压电流功率进行实时的检测，***安全等级高，冗余的充电模块提高了***整体稳定性，个别充电模块的损坏不影响大部分用户的充电体验，可以定时维护更换，降低了充电桩维修维护成本。
附图说明
图1为本发明的***图。
图中：1、分体式充电桩主机；2、冗余模块柔性充电控制器；3、充电模块控制器；4、功率分配继电器控制器；5、充电模块；6、分配继电器；7、剩余容量监控模块；8、电力变压器；9、充电终端。
具体实施方式
下面将结合本发明实施例中的附图，对本发明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发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
请参阅图1，本发明实施例中，一种随变压器容量动态分配的柔性直流充电***，包括分体式充电桩主机1、剩余容量监控模块7、充电模块5和充电终端9，分体式充电桩主机1由功率转换主回路和控制***组成，功率转换主回路由变压器三相电进行取电，通过充电模块5进行AC/DC转换，充电模块5输出端DC+/DC-通过少量的直流接触器进行分配投切，连接到每个充电枪终端，充电模块5总功率大于变压器容量，有一定的冗余，通过控制运算保障总使用功率小于变压器剩余容量，尽量满足充电需求，做到柔性功率切换充电。
其中，控制***由冗余模块柔性充电控制器2、充电模块控制器3、功率分配继电器控制器4和充电终端9的充电控制器组成，冗余模块柔性充电控制器2是核心控制器，通过和外部的剩余容量监控模块7实时获取变压器剩余容量，可以为后期变压器的剩余容量分配提供精准的瞬时数据支持。
其中，冗余模块柔性充电控制器2通过运算后控制充电模块控制器3和功率分配继电器控制器4对充电模块5和分配继电器6进行配置，获取充电终端9的需求功率参数，可以实时的对充电终端9的功率需求参数进行实时获取，为电量分配提供精准的数据支撑。
其中，外部的剩余容量监控模块7通过数字电表和交流互感器对变压器实时运行的电压电流功率等参数进行监测，外部的剩余容量监控模块7与变压器内部监测***进行485通信，进行监测对比后，可以准确的计算出变压器剩余可用容量，外部的剩余容量监控模块7与分体式充电桩主机1的冗余模块充电控制器进行CAN通信，把数据实时传输给充电桩。
本发明在建充电桩之前先利用剩余容量监控模块7记录变压器运行状态，通过4G网络传输，把数据传到后台***，后台***可以通过大数据分析，预测变压器使用容量变化状态，可以进行更合理的资源配置，提有效的高电力容量和电力设备的利用率，通过合理的配置，最大可能的满足用户的充电需求，控制过程简单，且开关器件较少，维修维护过程简单，通过对变压器剩余容量、变压器实时运行的电压电流功率进行实时的检测，***安全等级高，冗余的充电模块提高了***整体稳定性，个别充电模块的损坏不影响大部分用户的充电体验，可以定时维护更换，降低了充电桩维修维护成本。
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。

Claims (8)

1.一种随变压器容量动态分配的柔性直流充电***，包括分体式充电桩主机(1)、剩余容量监控模块(7)、充电模块(5)和充电终端(9)，其特征在于：所述分体式充电桩主机(1)由功率转换主回路和控制***组成，所述功率转换主回路由变压器三相电进行取电，通过充电模块(5)进行AC/DC转换，充电模块(5)输出端DC+/DC-通过少量的直流接触器进行分配投切，连接到每个充电枪终端。
2.根据权利要求1所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：所述充电模块(5)总功率大于变压器容量，有一定的冗余，通过控制运算保障总使用功率小于变压器剩余容量，尽量满足充电需求，做到柔性功率切换充电。
3.根据权利要求1所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：所述控制***由冗余模块柔性充电控制器(2)、充电模块控制器(3)、功率分配继电器控制器(4)和充电终端(9)的充电控制器组成。
4.根据权利要求3所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：所述冗余模块柔性充电控制器(2)是核心控制器，通过和外部的剩余容量监控模块(7)实时获取变压器剩余容量。
5.根据权利要求3所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：所述冗余模块柔性充电控制器(2)通过运算后控制充电模块控制器(3)和功率分配继电器控制器(4)对充电模块(5)和分配继电器(6)进行配置，获取充电终端(9)的需求功率参数。
6.根据权利要求4所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：外部的剩余容量监控模块(7)通过数字电表和交流互感器对变压器实时运行的电压电流功率等参数进行监测。
7.根据权利要求4所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：外部的剩余容量监控模块(7)与变压器内部监测***进行485通信，进行监测对比后，可以准确的计算出变压器剩余可用容量。
8.根据权利要求4所述的一种随变压器容量动态分配的柔性直流充电***，其特征在于：外部的剩余容量监控模块(7)与分体式充电桩主机(1)的冗余模块充电控制器进行CAN通信，把数据实时传输给充电桩。
CN202110765773.9A 2021-07-03 2021-07-03 一种随变压器容量动态分配的柔性直流充电*** Pending CN113525133A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110765773.9A CN113525133A (zh) 2021-07-03 2021-07-03 一种随变压器容量动态分配的柔性直流充电***

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110765773.9A CN113525133A (zh) 2021-07-03 2021-07-03 一种随变压器容量动态分配的柔性直流充电***

Publications (1)

Publication Number Publication Date
CN113525133A true CN113525133A (zh) 2021-10-22

Family

ID=78097889

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110765773.9A Pending CN113525133A (zh) 2021-07-03 2021-07-03 一种随变压器容量动态分配的柔性直流充电***

Country Status (1)

Country Link
CN (1) CN113525133A (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204559201U (zh) * 2015-05-08 2015-08-12 山东鲁能智能技术有限公司 一种电动汽车分体式直流充电桩及***
CN106208044A (zh) * 2016-08-05 2016-12-07 海南电力技术研究院 充电桩与配电变压器协调运行方法和装置
CN109228952A (zh) * 2018-10-30 2019-01-18 四川洪诚电气科技有限公司 一种基于功率智能调配的充电桩充电***和方法
CN208411434U (zh) * 2018-05-25 2019-01-22 西安特锐德智能充电科技有限公司 一种大功率的群充充电***
CN110509787A (zh) * 2019-08-19 2019-11-29 上海联桩新能源技术股份有限公司 充电堆、充电堆输出功率控制方法、装置、设备和介质
CN110682804A (zh) * 2019-11-27 2020-01-14 湖南红太阳新能源科技有限公司 一种自动功率分配的直流充电装置及控制方法
CN110901471A (zh) * 2019-11-19 2020-03-24 广州东方电科自动化有限公司 一种可快速扩展型电动汽车柔性直流充电***

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN204559201U (zh) * 2015-05-08 2015-08-12 山东鲁能智能技术有限公司 一种电动汽车分体式直流充电桩及***
CN106208044A (zh) * 2016-08-05 2016-12-07 海南电力技术研究院 充电桩与配电变压器协调运行方法和装置
CN208411434U (zh) * 2018-05-25 2019-01-22 西安特锐德智能充电科技有限公司 一种大功率的群充充电***
CN109228952A (zh) * 2018-10-30 2019-01-18 四川洪诚电气科技有限公司 一种基于功率智能调配的充电桩充电***和方法
CN110509787A (zh) * 2019-08-19 2019-11-29 上海联桩新能源技术股份有限公司 充电堆、充电堆输出功率控制方法、装置、设备和介质
CN110901471A (zh) * 2019-11-19 2020-03-24 广州东方电科自动化有限公司 一种可快速扩展型电动汽车柔性直流充电***
CN110682804A (zh) * 2019-11-27 2020-01-14 湖南红太阳新能源科技有限公司 一种自动功率分配的直流充电装置及控制方法

Similar Documents

Publication Publication Date Title
CN103997046B (zh) 箱式储能变电站储能单元投切控制方法
CN102570455B (zh) 智能微电网供电***
CN103023149A (zh) 一种基于iec61850标准的智能配电终端及智能配电***
CN111224402A (zh) 直流多微电网***及控制方法
CN104682431A (zh) 一种储能变流器的自启动方法及其自启动***
CN204992614U (zh) 一种光储能量管理实验***
CN110901471B (zh) 一种可快速扩展型电动汽车柔性直流充电***
CN203243049U (zh) 无功补偿节能装置
CN105281357A (zh) 一种柴油发电机组与孤岛微网的连接结构
CN105116809A (zh) 一种用户可自定义的智能微电网负荷控制***及方法
CN103117595B (zh) 分布式直流独立供电***
CN103996986A (zh) 箱式储能变电站结构
CN106169758A (zh) 一种自动提高低压三相线路末端电压的装置及方法
CN106786755A (zh) 一种储能***及控制方法
CN105375616B (zh) 一种配网馈线终端电源管理***及方法
CN202550532U (zh) 智能微电网供电***
CN103855722A (zh) 一种微电网并网装置
CN110752615A (zh) 一种电池储能电站现场联调装置及方法
CN104198953B (zh) 电动汽车充放电装置双向运行测试***及方法
CN203119615U (zh) 分布式直流独立供电***
CN204441905U (zh) 一种储能变流器的自启动***
CN111342498A (zh) 一种铁路牵引变电所的最大需量控制***和方法
CN113525133A (zh) 一种随变压器容量动态分配的柔性直流充电***
CN110531139A (zh) 一种移动式破碎筛分站的电流监控***及控制方法
CN205141701U (zh) 能源控制***

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination