CN204167920U - 一种智能配变终端 - Google Patents

一种智能配变终端 Download PDF

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CN204167920U
CN204167920U CN201420155732.3U CN201420155732U CN204167920U CN 204167920 U CN204167920 U CN 204167920U CN 201420155732 U CN201420155732 U CN 201420155732U CN 204167920 U CN204167920 U CN 204167920U
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super capacitor
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贺艺
王伟东
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XI'AN ZHIWANG ELECTRONIC TECHNOLOGY Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/30Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02B90/20Smart grids as enabling technology in buildings sector
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/12Energy storage units, uninterruptible power supply [UPS] systems or standby or emergency generators, e.g. in the last power distribution stages
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S20/00Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
    • Y04S20/20End-user application control systems
    • Y04S20/248UPS systems or standby or emergency generators
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/124Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wired telecommunication networks or data transmission busses
    • YGENERAL 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
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS 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
    • Y04S40/00Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
    • Y04S40/12Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
    • Y04S40/126Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission

Abstract

本实用新型公开了一种智能配变终端,包括接口板,接口板上连接有电力载波板、电源板、进线采集板、出线采集板、模拟量以太网板、控制输出RS485板、GPRS WIFI通讯板和控制板,控制板内设置有充放电电路,控制板上连接有LCD。通过增加超级电容组成的充放电电路作为智能配变终端断电时的支撑,当设备停电时,超级电容首先对智能配变终端进行供电,通过超级电容容量和终端最大功率的计算,超级电容的最小供电时间是3分钟,而停电时数据的发送及存储的时间将不超过1分钟,通过超级电容可把原先现场使用过程中遇到的故障都得到了有效的解决,极大提高了配变终端的设备可靠性。为整个配电台区的可靠运行提供了有力的保证。

Description

一种智能配变终端
技术领域
[0001] 本实用新型属于电力行业技术领域,涉及一种智能配变终端。
背景技术
[0002] 智能配变终端具有采集被监测设备用电参数,通过以太网、GPRS、电力载波方式上传数据,以及补偿无功功率的智能设备。因此,智能配变终端对数据可靠性要求非常高,如果在通讯、控制输出过程中出现故障,严重时将会造成配电台区停电。在配变台区出现停电时,配变终端需要将停电事件通过以太网或者GPRS网络向主站发送,接着智能配变终端存储在内存中的数据要保存到存储系统当中。这些数据对于配变台区的管理来说都是十分重要的数据,因此就需要在停电时及时对智能配变终端提供电能。
[0003] 由于现有的智能配变终端只有镍锌电池供电,因而在现场使用的过程中电池供电无法提供大电流,并且使用寿命短、有记忆效应、充电时间长、温度范围窄、连接不可靠、低温时电池容量降低、无法驱动GPRS等大功率设备的现象,因此在使用中影响了供电的可靠性。
实用新型内容
[0004] 本实用新型为了解决上述技术问题,提供一种输出电流大,使用寿命长,充电时间短,无记忆效应,温度范围大的智能配变终端,极大提高了配变终端的设备可靠性。为整个配电台区的可靠运行提供了有力的保证。
[0005] 本实用新型是通过以下技术方案来实现:
[0006] 一种智能配变终端,包括接口板,所述的接口板上连接有电力载波板、电源板、进线采集板、出线采集板、模拟量以太网板、控制输出RS485板、GPRS WIFI通讯板和控制板,所述的控制板内设置有超级电容组成的充放电电路,控制板上连接有LCD。
[0007] 所述的控制板包括LPC1788,所述的LPC1788上连接有KEY、FLASH、RTC, SRAM、MAC+PHY、PHY、镍锌电池和超级电容组成的充放电电路。
[0008] 所述的充放电电路包括两个超级电容Cl、C2、两个TL431三极管Ql、Q2和两个电阻Rl、R2,所述的超级电容Cl与超级电容C2串联后,超级电容Cl的一端与+5V的电源相连,超级电容C2的一端接地,TL431三极管Ql的基极和发射极连接到超级电容Cl的电源接入端上,TL431三极管Ql的集电极经电阻Rl后连接到TL431三极管Q2的基极和发射极,TL431三极管Q2的集电极经电阻R2后接地,所述的两个串联的超级电容Cl、C2之间引出一导线连接到电阻Rl和TL431三极管Q2之间。
[0009] 所述的电阻Rl、R2为阻值为3 Ω,功率为2W。
[0010] 与现有技术相比,本实用新型具有以下有益的技术效果:
[0011] 本实用新型提供的智能配变终端,通过增加超级电容组成的充放电电路作为智能配变终端断电时的支撑,该部分电路是直接焊接在电路板上的,当设备停电时,超级电容首先对智能配变终端进行供电,通过超级电容容量和终端最大功率的计算,超级电容的最小供电时间是3分钟,而停电时数据的发送及存储的时间将不超过I分钟,通过超级电容可把原先现场使用过程中遇到的故障都得到了有效的解决,极大提高了配变终端的设备可靠性。为整个配电台区的可靠运行提供了有力的保证。
[0012] 本实用新型提供的智能配变终端使用了超级电容在断电的情况下供电,由于超级电容具有输出电流大,使用寿命长,充电时间短,无记忆效应,温度范围大等优点,且充放电电路简单,与电池结合使用,能大幅提高系统供电可靠性。
附图说明
[0013] 图1为本实用新型提供的智能配变终端整体结构示意图;
[0014] 图2为本实用新型提供的智能配变终端中的控制板结构示意图;
[0015] 图3为本实用新型提供的智能配变终端控制板中的充放电电路结构示意图。
具体实施方式
[0016] 下面结合附图对本实用新型做进一步详细描述:
[0017] 参见图1、图2,一种智能配变终端,包括接口板,所述的接口板上连接有电力载波板、电源板、进线采集板、出线采集板、模拟量以太网板、控制输出RS485板、GPRS WIFI通讯板和控制板,控制板上连接有IXD,所述的控制板包括LPC1788,所述的LPC1788上连接有KEY、FLASH、RTC, SRAM、MAC+PHY、PHY、镍锌电池和超级电容组成的充放电电路。其中,所述的超级电容组成的充放电电路直接焊接在控制板电路板上。
[0018] 所述的充放电电路包括两个4.7F超级电容C1、C2、两个TL431三极管Q1、Q2和两个阻值为3 Ω,功率为2W的电阻Rl、R2,所述的超级电容Cl与超级电容C2串联后,超级电容Cl的一端与+5V的电源相连,超级电容C2的一端接地,TL431三极管Ql的基极和发射极连接到超级电容Cl的电源接入端上,TL431三极管Ql的集电极经电阻Rl后连接到TL431三极管Q2的基极和发射极,TL431三极管Q2的集电极经电阻R2后接地,所述的两个串联的超级电容Cl、C2之间引出一导线连接到电阻Rl和TL431三极管Q2之间。
[0019] 参见图3,超级电容充放电保护电路工作原理:
[0020] 1、当外部5V的电压源给超级电容Cl、C2充电时,CU C2电压开始上升,在Cl、C2的电压达到2.5V之前,每个TL431都相当于一个断开的开关,TL431两端电压就是超级电容上的电压,R1、R2的电压都为0,即Vcl = Vtl431,Vc2 = Vtl431。
[0021] 2、随着Cl、C2的电压进一步上升,如果Cl的电压先达到并超过2.5V,此时Cl两端所接的TL431上的电压将会稳定在2.5V,那么Cl和TL431之间的电压差值就会由Rl来分担,即 Vcl = Vrl+Vtl431 = Vrl+2.5V。
[0022] 3、当C1、C2的总电压进一步上升到等于外部电压源5V,所以C2的电压小于2.5V,即C2两端所接的TL431和R2没有起作用,同时Rl上的电能会以热能的形式消耗掉,直到Rl上的电压消耗接近于O时,此时Cl两端的电压逐渐减小到接近2.5V,由于外加电压为5V,等于C1、C2的总电压,即Vcl+Vc2 = 5V,所以C2两端的电压也会逐渐增大到接近2.5V,最终Cl、C2的电压都接近于2.5V,实现超级电容单体的电压均衡。
[0023] 本实用新型提供的充放电电路中的超级电容具有以下优点:
[0024] (a) 一组电池的电量是800mA,而一个4.7F的超级电容瞬间电流达18A以上,因此超级电容功率密度大,可为智能配变终端提供大电流。
[0025] (b)超级电容使用寿命长,充放电大于50万次,是锂电池的500倍,是镍锌电池的1000倍,如果每天充放电20次,可连续使用68年。
[0026] (c)超级电容的温度范围是-40度至+70度,普通电池只有-20度至+60度。
[0027] (d)超级电容的放电反应时间小于0.1s,普通电池放电反应时间大于Is。
[0028] (e)超级电容充电时间0.1s至10s,普通电池充电时间Ih至1h。
[0029] (f)由于超级电容连接方式更可靠,因此与电池结合使用,可提高该智能配变终端的供电可靠性且该超级电容免维护可密封。
[0030] (g)超级电容可大电流充电,充电时间短,充电电路简单,无记忆效应。
[0031] 本实用新型提供的智能配变终端使用了超级电容在断电的情况下供电,由于超级电容具有输出电流大,使用寿命长,充电时间短,无记忆效应,温度范围大等优点,且充放电电路简单,与电池结合使用,能大幅提高系统供电可靠性。
[0032] 本实用新型通过增加超级电容组成的充放电电路作为智能配变终端断电时的支撑,该部分电路是直接焊接在电路板上的,当设备停电时,超级电容首先对智能配变终端进行供电,通过超级电容容量和终端最大功率的计算,超级电容的最小供电时间是3分钟,而停电时数据的发送及存储的时间将不超过I分钟,通过超级电容可把原先现场使用过程中遇到的故障都得到了有效的解决,极大提高了配变终端的设备可靠性。为整个配电台区的可靠运行提供了有力的保证。
[0033] 以上显示和描述了本实用新型的基本原理和主要特征和本实用新型的优点。本行业的技术人员应该了解,本实用新型不受上述实施例的限制,上述实施例和说明书中描述的只是说明本实用新型的原理,在不脱离本实用新型精神和范围的前提下,本实用新型还会有各种变化和改进,这些变化和改进都落入要求保护的本实用新型范围内。本实用新型要求保护范围由所附的权利要求书及其等效物界定。

Claims (4)

1.一种智能配变终端,其特征在于,包括接口板,所述的接口板上连接有电力载波板、电源板、进线采集板、出线采集板、模拟量以太网板、控制输出RS485板、GPRS WIFI通讯板和控制板,所述的控制板内设置有超级电容组成的充放电电路,控制板上连接有LCD。
2.根据权利要求1所述的智能配变终端,其特征在于,所述的控制板包括LPC1788,所述的LPC1788上连接有KEY、FLASH、RTC, SRAM、MAC+PHY、PHY、镍锌电池和超级电容组成的充放电电路。
3.根据权利要求1或2所述的智能配变终端,其特征在于,所述的充放电电路包括两个超级电容Cl、C2、两个TL431三极管Ql、Q2和两个电阻Rl、R2,所述的超级电容Cl与超级电容C2串联后,超级电容Cl的一端与+5V的电源相连,超级电容C2的一端接地,TL431三极管Ql的基极和发射极连接到超级电容Cl的电源接入端上,TL431三极管Ql的集电极经电阻Rl后连接到TL431三极管Q2的基极和发射极,TL431三极管Q2的集电极经电阻R2后接地,所述的两个串联的超级电容Cl、C2之间引出一导线连接到电阻Rl和TL431三极管Q2之间。
4.根据权利要求3所述的智能配变终端,其特征在于,所述的电阻Rl、R2为阻值为.3 Ω,功率为2ffo
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WO2020103640A1 (zh) * 2018-11-23 2020-05-28 江苏智臻能源科技有限公司 一种配变台区感知终端装置及感知方法

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* Cited by examiner, † Cited by third party
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