CN206340984U - A kind of integrated AC/DC integrated power-supply system of multicompartment - Google Patents
A kind of integrated AC/DC integrated power-supply system of multicompartment Download PDFInfo
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Abstract
本实用新型属于变电站站用电源技术领域,尤其涉及一种多组件集成的交直流一体化电源系统。在本实用新型实施例中,该交直流一体化电源系统采用智能开关组件、智能电源功能组件、智能并联电池组件构成,可以达到如下有益效果:(1)缩短供货周期,可提前生产、并行生产,设计、组装、测试、运输时间均大大减少;(2)增大安装密度;(3)方便维护、扩容,维护只需标准化更换,扩容组件完整包含所有要素,一次成型;(4)最大程度减少维护工作量,组件标准对外数字化接口,标准化模数设计,维护只需简单更换;(5)最大程度减低操作复杂性,大量一二次接线PCB板化、铜排化设计,安全可靠,操作只需简易工具便可实现。
The utility model belongs to the technical field of substation power supplies, in particular to an AC-DC integrated power supply system integrated with multiple components. In the embodiment of the utility model, the integrated AC and DC power supply system is composed of intelligent switch components, intelligent power supply functional components, and intelligent parallel battery components, which can achieve the following beneficial effects: (1) shorten the supply cycle, and can produce in advance and parallel Production, design, assembly, testing, and transportation time are all greatly reduced; (2) increase the installation density; (3) facilitate maintenance and expansion, maintenance only needs standardized replacement, and the expansion components completely contain all elements and are formed at one time; (4) the largest Minimize the maintenance workload, standard external digital interface of components, standardized module design, only simple replacement for maintenance; (5) Minimize operational complexity, a large number of primary and secondary wiring PCB boards, copper row design, safe and reliable, The operation can be realized with only simple tools.
Description
技术领域technical field
本实用新型属于变电站站用电源技术领域,尤其涉及一种多组件集成的交直流一体化电源系统。The utility model belongs to the technical field of substation power supplies, in particular to an AC-DC integrated power supply system integrated with multiple components.
背景技术Background technique
随着国家大力推进坚强智能电网的建设步伐,智能变电站已成为新一代变电站的发展趋势。站用电源是变电站安全运行的关键性基础,智能变电站对站用电源整体设计、运行、管理水平提出了更高的要求。由此,智能变电站站用一体化电源系统设计方案应运而生。现有变电站站用交直流一体化电源系统技术方案是将以往独立分散设计的交流电源、直流操作电源、交流不间断电源、逆变电源、通信电源等变电站站用电源进行一体化设计、一体化配置、一体化监控,整合后的站用电源系统从根本上解决了传统变电站站用电源自动化程度低制约网络化管理平台的建立、各系统分散设计重复配置经济性差、安装维护协调困难、运行维护不方便等问题。As the country vigorously promotes the construction of a strong smart grid, smart substations have become the development trend of the new generation of substations. The station power supply is the key basis for the safe operation of the substation, and the smart substation puts forward higher requirements for the overall design, operation and management level of the station power supply. As a result, the design scheme of the integrated power system for smart substations came into being. The technical scheme of the existing AC-DC integrated power supply system for substations is to integrate the AC power supply, DC operating power supply, AC uninterruptible power supply, inverter power supply, communication power supply, etc. Configuration and integrated monitoring, the integrated station power system fundamentally solves the problem of the low degree of automation of the traditional substation station power supply, which restricts the establishment of a networked management platform, the scattered design and repeated configuration of each system is poor in economy, the installation and maintenance coordination is difficult, and the operation and maintenance Inconvenience and other issues.
但是现有的技术也存在如下问题:But existing technology also has following problems:
1、现有交直流一体化电源系统中的各电能模块需加输入输出配件,使模块化设计不彻底。如电能转换装置AC/DC、DC/DC、DC/AC本身已是模块化设计,但其输入输出端还要配置相应的进出线开关、保险等配件,如此使整个系统的模块化设计不够完整,难以满足现今变电站设备模块化发展建设的要求。1. Each power module in the existing AC-DC integrated power supply system needs to add input and output accessories, which makes the modular design incomplete. For example, AC/DC, DC/DC, and DC/AC power conversion devices are already modular designs, but their input and output terminals must be equipped with corresponding accessories such as incoming and outgoing line switches, insurance, etc., so that the modular design of the entire system is not complete. , It is difficult to meet the requirements of the modular development and construction of today's substation equipment.
2、开关是在一体化电源中占比较大的元器件,不同变电站项目对开关数量、类型的差异要求决定了一体化电源系统的定制特性。一体化电源系统过度定制性使供货周期加大、质量参差不齐、运行维护效率低。2. The switch is a relatively large component in the integrated power supply. Different substation projects have different requirements for the number and type of switches that determine the customization characteristics of the integrated power supply system. The over-customization of the integrated power supply system increases the delivery cycle, the quality is uneven, and the operation and maintenance efficiency is low.
3、开关的开关量采集、电气量采集及控制,直流馈线绝缘监测漏电流,电池极柱电压采样线、温度检测均产生大量常规二次线。如此多的常规二次线,既与智能变电站整体技术不协调,也妨碍了运行管理水平的提升。3. A large number of conventional secondary lines are generated for switch quantity acquisition, electrical quantity acquisition and control, DC feeder insulation monitoring leakage current, battery pole voltage sampling line, and temperature detection. So many conventional secondary lines are not only incompatible with the overall technology of smart substations, but also hinder the improvement of operation management level.
实用新型内容Utility model content
本实用新型实施例的目的在于提供一种多组件集成的交直流一体化电源系统,旨在解决现在的电源系统存在开关数量类型的差异造成项目设计定制化严重、大量常规二次线设计、电能模块输入输出配件引起的模块化设计不彻底以及串联型电池开路影响整组电压输出、新旧不可混用、无法在线自主全电量核容的问题。The purpose of the embodiment of the utility model is to provide a multi-component integrated AC and DC integrated power supply system, which aims to solve the problem of serious project design customization caused by the difference in the number and types of switches in the current power supply system, a large number of conventional secondary line designs, and power The modular design caused by the module input and output accessories is not complete, and the open circuit of the series battery affects the voltage output of the whole group.
本实用新型实施例是这样实现的,一种多组件集成的交直流一体化电源系统,分别接交流母线和直流母线,所述多组件集成的交直流一体化电源系统包括:The embodiment of the utility model is realized in this way. A multi-component integrated AC-DC integrated power supply system is respectively connected to the AC busbar and the DC busbar. The multi-component integrated AC-DC integrated power supply system includes:
一体化总监控单元;Integrated total monitoring unit;
与所述一体化总监控单元连接的智能交流进线开关组件;An intelligent AC incoming switch assembly connected to the integrated total monitoring unit;
分别与所述一体化总监控单元、智能交流进线开关组件和交流母线连接的智能交流电源切换组件;An intelligent AC power switching component connected to the integrated total monitoring unit, the intelligent AC incoming switch component and the AC busbar respectively;
并联在所述一体化总监控单元和交流母线之间的多个智能交流馈线组件;以及A plurality of intelligent AC feeder components connected in parallel between the integrated total monitoring unit and the AC busbar; and
并联在所述一体化总监控单元和直流母线之间的多个智能直流馈线组件。A plurality of intelligent DC feeder components connected in parallel between the integrated total monitoring unit and the DC bus.
上述结构中,所述多组件集成的交直流一体化电源系统还包括:In the above structure, the multi-component integrated AC and DC integrated power supply system also includes:
分别与所述交流母线和一体化总监控单元连接的交流电源切换组件。An AC power switching component connected to the AC busbar and the integrated total monitoring unit respectively.
上述结构中,所述多组件集成的交直流一体化电源系统还包括:In the above structure, the multi-component integrated AC and DC integrated power supply system also includes:
并联在所述交流电源切换组件与直流母线之间,并与所述一体化总监控单元连接的多个间接并联电池组件。A plurality of indirect parallel battery assemblies connected in parallel between the AC power switching assembly and the DC bus and connected to the integrated total monitoring unit.
上述结构中,每个所述间接并联电池组件包括:In the above structure, each of the indirect parallel battery assemblies includes:
CPU、AC/DC整流电路、DC/DC转换电路、滤波电路、充电DC/DC电路、放电DC/DC电路、保险丝和蓄电池;CPU, AC/DC rectifier circuit, DC/DC conversion circuit, filter circuit, charging DC/DC circuit, discharging DC/DC circuit, fuse and storage battery;
所述AC/DC整流电路、DC/DC转换电路和滤波电路依次串联在所述交流电源切换组件与直流母线之间,所述充电DC/DC电路和保险丝串联在所述AC/DC整流电路与蓄电池之间,所述放电DC/DC电路连接在所述保险丝与滤波电路的输入端之间,所述CPU分别与所述AC/DC整流电路、DC/DC转换电路、充电DC/DC电路、放电DC/DC电路连接,所述CPU通过RS485线与所述一体化总监控单元连接。The AC/DC rectifier circuit, DC/DC conversion circuit and filter circuit are sequentially connected in series between the AC power switching component and the DC bus, and the charging DC/DC circuit and fuse are connected in series between the AC/DC rectifier circuit and the DC bus. Between the batteries, the discharge DC/DC circuit is connected between the fuse and the input end of the filter circuit, and the CPU is respectively connected to the AC/DC rectifier circuit, DC/DC conversion circuit, charging DC/DC circuit, The discharge DC/DC circuit is connected, and the CPU is connected with the integrated total monitoring unit through the RS485 line.
在本实用新型实施例中,该交直流一体化电源系统采用智能开关组件、智能电源功能组件、智能并联电池组件构成,可以达到如下有益效果:In the embodiment of the utility model, the integrated AC and DC power supply system is composed of intelligent switch components, intelligent power supply functional components, and intelligent parallel battery components, which can achieve the following beneficial effects:
(1)缩短供货周期(1) shorten the lead time
可提前生产、并行生产,设计、组装、测试、运输时间均大大减少;It can be produced in advance and in parallel, and the design, assembly, testing and transportation time are greatly reduced;
(2)增大安装密度(2) Increase the installation density
(3)方便维护、扩容(3) Convenient maintenance and expansion
维护只需标准化更换,扩容组件完整包含所有要素,一次成型;Only standardized replacement is required for maintenance, and the expansion component completely contains all elements and is formed at one time;
(4)最大程度减少维护工作量(4) Minimize maintenance workload
组件标准对外数字化接口,标准化模数设计,维护只需简单更换;Component standard external digital interface, standardized module design, maintenance only needs simple replacement;
(5)最大程度减低操作复杂性(5) Minimize operational complexity
大量一二次接线PCB板化、铜排化设计,安全可靠,操作只需简易工具便可实现。A large number of primary and secondary wiring PCB boards and copper busbars are designed, safe and reliable, and the operation can be realized with simple tools.
附图说明Description of drawings
图1是本实用新型实施例提供的多组件集成的交直流一体化电源系统的模块结构图;Fig. 1 is a module structure diagram of a multi-component integrated AC-DC integrated power supply system provided by an embodiment of the present invention;
图2是本实用新型实施例提供的间接并联电池组件的结构图。Fig. 2 is a structural diagram of an indirect parallel battery assembly provided by an embodiment of the present invention.
具体实施方式detailed description
为了使本实用新型的目的、技术方案及优点更加清楚明白,以下结合附图及实施例,对本实用新型进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本实用新型,并不用于限定本实用新型。In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.
图1示出了本实用新型实施例提供的多组件集成的交直流一体化电源系统的模块结构,为了便于说明,仅示出了与本实用新型实施例相关的部分。Fig. 1 shows the module structure of the multi-component integrated AC and DC integrated power supply system provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.
一种多组件集成的交直流一体化电源系统,分别接交流母线和直流母线,所述多组件集成的交直流一体化电源系统包括:A multi-component integrated AC-DC integrated power supply system is connected to an AC bus and a DC bus respectively, and the multi-component integrated AC-DC integrated power supply system includes:
一体化总监控单元1;Integrated total monitoring unit 1;
与所述一体化总监控单元1连接的智能交流进线开关组件2;An intelligent AC incoming line switch assembly 2 connected to the integrated total monitoring unit 1;
分别与所述一体化总监控单元1、智能交流进线开关组件2和交流母线连接的智能交流电源切换组件3;An intelligent AC power switching component 3 connected to the integrated total monitoring unit 1, the intelligent AC incoming switch component 2 and the AC busbar respectively;
并联在所述一体化总监控单元1和交流母线之间的多个智能交流馈线组件4;以及A plurality of intelligent AC feeder assemblies 4 connected in parallel between the integrated total monitoring unit 1 and the AC busbar; and
并联在所述一体化总监控单元1和直流母线之间的多个智能直流馈线组件6。A plurality of intelligent DC feeder assemblies 6 connected in parallel between the integrated total monitoring unit 1 and the DC bus.
作为本实用新型一实施例,所述多组件集成的交直流一体化电源系统还包括:As an embodiment of the present utility model, the multi-component integrated AC and DC integrated power supply system further includes:
分别与所述交流母线和一体化总监控单元1连接的交流电源切换组件5。An AC power switch assembly 5 connected to the AC bus and the integrated total monitoring unit 1 respectively.
作为本实用新型一实施例,所述多组件集成的交直流一体化电源系统还包括:As an embodiment of the present utility model, the multi-component integrated AC and DC integrated power supply system further includes:
并联在所述交流电源切换组件5与直流母线之间,并与所述一体化总监控单元1连接的多个间接并联电池组件7。A plurality of indirect parallel battery assemblies 7 connected in parallel between the AC power switching assembly 5 and the DC bus and connected to the integrated total monitoring unit 1 .
并接与直流母线的并联电池组件具备自主在线核容,可以实现随意快速扩容。The parallel battery modules connected in parallel with the DC bus have independent online core capacity, which can realize free and rapid capacity expansion.
图2示出了本实用新型实施例提供的多组件集成的交直流一体化电源系统的模块结构,为了便于说明,仅示出了与本实用新型实施例相关的部分。Fig. 2 shows the module structure of the multi-component integrated AC-DC integrated power supply system provided by the embodiment of the present invention. For the convenience of description, only the parts related to the embodiment of the present invention are shown.
每个所述间接并联电池组件7包括:Each of the indirect parallel battery assemblies 7 includes:
CPU71、AC/DC整流电路72、DC/DC转换电路73、滤波电路74、充电DC/DC电路75、放电DC/DC电路76、保险丝77和蓄电池78;CPU71, AC/DC rectifier circuit 72, DC/DC conversion circuit 73, filter circuit 74, charging DC/DC circuit 75, discharging DC/DC circuit 76, fuse 77 and storage battery 78;
所述AC/DC整流电路72、DC/DC转换电路73和滤波电路74依次串联在所述交流电源切换组件5与直流母线之间,所述充电DC/DC电路75和保险丝77串联在所述AC/DC整流电路72与蓄电池78之间,所述放电DC/DC电路76连接在所述保险丝77与滤波电路74的输入端之间,所述CPU71分别与所述AC/DC整流电路72、DC/DC转换电路73、充电DC/DC电路75、放电DC/DC电路76连接,所述CPU71通过RS485线与所述一体化总监控单元1连接。The AC/DC rectifier circuit 72, DC/DC conversion circuit 73 and filter circuit 74 are sequentially connected in series between the AC power switching assembly 5 and the DC bus, and the charging DC/DC circuit 75 and fuse 77 are connected in series in the Between the AC/DC rectifier circuit 72 and the storage battery 78, the discharge DC/DC circuit 76 is connected between the fuse 77 and the input end of the filter circuit 74, and the CPU 71 is respectively connected to the AC/DC rectifier circuit 72, The DC/DC conversion circuit 73, the charging DC/DC circuit 75, and the discharging DC/DC circuit 76 are connected, and the CPU 71 is connected with the integrated total monitoring unit 1 through the RS485 line.
交流电源消失时,蓄电池77不间断通过放电DC/DC电路76给负载供电。等交流电源恢复后,再通过充电DC/DC电路75按充电曲线对蓄电池78进行充电。所有过程,组件均是通过CPU电路进行管理。When the AC power disappears, the storage battery 77 continuously supplies power to the load through the discharging DC/DC circuit 76 . After the AC power is restored, the storage battery 78 is charged by the charging DC/DC circuit 75 according to the charging curve. All processes and components are managed by the CPU circuit.
间接并联电池组件7应具备以下功能:The indirect parallel battery assembly 7 should have the following functions:
(1)保护功能(1) Protection function
输入过压、欠压保护;输出过压、欠压保护;限流保护;短路保护。Input overvoltage and undervoltage protection; output overvoltage and undervoltage protection; current limiting protection; short circuit protection.
(2)蓄电池管理功能(2) Battery management function
组件自动对电池进行完善智能的电池充放电管理,包括充电管理、放电管理、温度管理、电量计算、电压电流保护和0.1C核容管理等。组件正常工作状态下,自动按默认管理参数进行智能管理,可通过后台软件或监控对电池管理各参数进行设置。The module automatically performs perfect and intelligent battery charge and discharge management on the battery, including charge management, discharge management, temperature management, power calculation, voltage and current protection, and 0.1C core capacity management. In the normal working state of the components, the default management parameters are automatically used for intelligent management, and the parameters of battery management can be set through background software or monitoring.
间接并联电池组件7根据系统监控设置核容时间间隔逐一对每个组件匹配的蓄电池进行自动核容管理。核容的条件是在组件对电池处于浮充阶段,交流正常供电。当组件接收到上位机下达的核容指令后,组件内部逻辑首先是判断是否在浮充阶段,满足浮充条件后,组件内部逻辑首先关断AC/DC整流电路72及充电DC/DC电路75,使组件的输出由蓄电池78提供能量,组件内部微调输出放电DC/DC电路76的输出电压,实现蓄电池78的放电电流大小约0.1C。同时组件内部CPU7计算蓄电池放电容量直至核容完毕。当CPU7检测到电池电压达到终止电压点,CPU7开启AC/DC整流电路72,组件转为交流提供能量,结束对电池的核对性放电,同时启动对电池充电管理。组件上报累计容量,即为核容结果。The indirect parallel battery assembly 7 performs automatic capacity management on the storage batteries matched by each assembly one by one according to the system monitoring setting nuclear capacity time interval. The condition of nuclear capacity is that the battery is in the floating charging stage of the module and the AC power supply is normal. When the component receives the nuclear capacity command issued by the host computer, the internal logic of the component first judges whether it is in the floating charge stage. After the floating charge condition is met, the internal logic of the component first turns off the AC/DC rectifier circuit 72 and the charging DC/DC circuit 75 , so that the output of the assembly is powered by the storage battery 78, and the output voltage of the output discharge DC/DC circuit 76 is fine-tuned inside the assembly to achieve a discharge current of the storage battery 78 of about 0.1C. At the same time, the internal CPU7 of the module calculates the battery discharge capacity until the nuclear capacity is completed. When the CPU7 detects that the battery voltage reaches the termination voltage point, the CPU7 turns on the AC/DC rectifier circuit 72, the components switch to AC to provide energy, end the checking discharge of the battery, and start the battery charging management at the same time. The cumulative capacity reported by the component is the result of the nuclear capacity.
智能交流电源切换组件3、交流电源切换组件5与间接并联电池组件7属于故障几率较小的器件、免维护,在实际使用中被放置于背景墙内,背景墙后置进线母排、出线端子,背景墙前置与开关的接口。The intelligent AC power switching component 3, the AC power switching component 5, and the indirect parallel battery component 7 are devices with a small failure probability and are maintenance-free. They are placed in the background wall in actual use, and the incoming line busbar and outgoing line are placed behind the background wall Terminal, the interface between the background wall front and the switch.
该多组件集成的交直流一体化电源系统包括智能开关组件、智能电源功能组件、智能并联电池组件。功能组件由功能本体模块和输入输出配件集成设计,最大化消除二次线及跨接一次性。该系统通过采用传感器小型化、金属螺钉操作绝缘化、二次线路电路板化等技术设计完成智能开关组件,采用接口标准化、散件再集成等技术设计完成各种电能转换和监控组件。The multi-component integrated AC and DC integrated power supply system includes an intelligent switch component, an intelligent power supply function component, and an intelligent parallel battery component. Functional components are integrated with functional body modules and input and output accessories to maximize the elimination of secondary lines and one-time jumpers. The system designs and completes the intelligent switch components by using technologies such as sensor miniaturization, metal screw operation insulation, and secondary circuit circuit boards, and various power conversion and monitoring components are designed and completed by using technologies such as interface standardization and component reintegration.
1)交直流一体化电源系统中全部开关、直流绝缘监测、电能转换模块、蓄电池管理通过设计为各种功能组件,实现全模块化设计。可通过组件的组合,标准化满足各种定制化需求。1) All switches, DC insulation monitoring, power conversion modules, and battery management in the AC-DC integrated power system are designed as various functional components to achieve a fully modular design. Through the combination of components, standardization can meet various customized needs.
2)各种功能组件均有标准通信接口,上行下达信息数字化传输。2) Various functional components have standard communication interfaces for digital transmission of uplink information.
3)整个一体化电源系统由各个全模块化设计的组件组成,可以实现工厂内模块生产、集成调试、模块化配送,有效减少现场安装、接线、调试工作,提高建设质量和效率。3) The entire integrated power supply system is composed of all modular design components, which can realize module production, integrated debugging, and modular distribution in the factory, effectively reduce on-site installation, wiring, and debugging work, and improve construction quality and efficiency.
在本实用新型实施例中,该交直流一体化电源系统采用智能开关组件、智能电源功能组件、智能并联电池组件构成,可以达到如下有益效果:In the embodiment of the utility model, the integrated AC and DC power supply system is composed of intelligent switch components, intelligent power supply functional components, and intelligent parallel battery components, which can achieve the following beneficial effects:
(1)缩短供货周期(1) shorten the lead time
可提前生产、并行生产,设计、组装、测试、运输时间均大大减少;It can be produced in advance and in parallel, and the design, assembly, testing and transportation time are greatly reduced;
(2)增大安装密度(2) Increase the installation density
(3)方便维护、扩容(3) Convenient maintenance and expansion
维护只需标准化更换,扩容组件完整包含所有要素,一次成型;Only standardized replacement is required for maintenance, and the expansion component completely contains all elements and is formed at one time;
(4)最大程度减少维护工作量(4) Minimize maintenance workload
组件标准对外数字化接口,标准化模数设计,维护只需简单更换;Component standard external digital interface, standardized module design, maintenance only needs simple replacement;
(5)最大程度减低操作复杂性(5) Minimize operational complexity
大量一二次接线PCB板化、铜排化设计,安全可靠,操作只需简易工具便可实现。A large number of primary and secondary wiring PCB boards and copper busbars are designed, safe and reliable, and the operation can be realized with simple tools.
以上所述仅为本实用新型的较佳实施例而已,并不用以限制本实用新型,凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本实用新型的保护范围之内。The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of protection of utility models.
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Effective date of registration: 20171127 Address after: 100032 West Chang'an Avenue, Beijing, No. 86, No. Co-patentee after: ZHANGJIAKOU POWER SUPPLY COMPANY OF STATE GRID JINBEI ELECTRIC POWER Co.,Ltd. Patentee after: State Grid Corporation of China Co-patentee after: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. Address before: Baoan District Xin'an street Shenzhen city Guangdong province 518000 Liuxian road two Honghui Industrial Park 1 building 4, 6 floor Patentee before: SHENZHEN TIEON ENERGY TECHNOLOGY Co.,Ltd. |
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