CN202997694U - 光伏嗅探器 - Google Patents
光伏嗅探器 Download PDFInfo
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- CN202997694U CN202997694U CN201220406568XU CN201220406568U CN202997694U CN 202997694 U CN202997694 U CN 202997694U CN 201220406568X U CN201220406568X U CN 201220406568XU CN 201220406568 U CN201220406568 U CN 201220406568U CN 202997694 U CN202997694 U CN 202997694U
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- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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- 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
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- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- 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
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/123—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving renewable energy sources
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- 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
- Y04S40/00—Systems 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
- Y04S40/12—Systems 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
- Y04S40/128—Systems 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 involving the use of Internet protocol
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Abstract
本实用新型公开了一种光伏嗅探器,主要应用于太阳能发电系统对太阳能电池组件进行监控。太阳能电池组件损坏或者被遮蔽等等,会影响整个太阳能阵列的发电量,目前太阳能发电系统缺少一种有效的机制对太阳能组件进行监控。本实用新型采用光伏嗅探器,将其安装在太阳能电池组件的接线盒里,通过检测模块对太阳能电池组件的输出电压、输出电流、接线盒里的温度进行测量,由通信模块通过电力线载波通信的方式将测量数据上传至智能监控器,智能监控器再将数据通过网络上传至监控网站服务器,以实现对太阳能电池组件的实时监控和管理。
Description
技术领域
本实用新型涉及电力电子技术、电力线载波通信技术、太阳能技术、太阳能发电技术、应用于太阳能并网和离网发电。
背景技术
目前太阳能发电主要是将多个太阳能电池组件串并联后,再与太阳能逆变器连接实现并网或离网发电。
太阳能电站尤其是太阳能电池组件很容易发生故障,故障的原因可能是太阳能电池组件沾染灰尘、花粉、鸟粪、积雪,也有可能是安装缺陷、生产缺陷等等。
因为太阳能电池组件串联在一起,串组里流过的最大电流取决于性能最差的太阳能电池组件。一个有缺陷或者损坏的太阳能电池组件,使这个串组里正常工作的其它太阳能电池组件性能同样变差。所以,判断太阳能电站的运行状况以及在大量的太阳能电池组件之中查找发生问题的太阳能电池组件,对于及时排除太阳能电站的故障,提高太阳能电站的发电效率显得非常重要。在这方面,目前缺少一种简单、有效、低成本的方案来实现。
发明内容
针对上述问题,本实用新型的主要目的在于提供一种安装简便、低成本的光伏嗅探器(201)。光伏嗅探器(201)直接安装在太阳能电池组件(101)的太阳能接线盒里,每个太阳能电池组件(101)对应一个光伏嗅探器(201)。光伏嗅探器(201)的工作电压由太阳能电池组件(101)提供,辅助电源(102)从太阳能电池组件(101)获取工作电源,转换为其它模块所需的工作电压。
数字信号控制器(103)控制检测模块(104)以一定的时间间隔对太阳能电池组件(101)的输出电压、输出电流以及太阳能接线盒的内部温度进行检测,并将检测模块(104)检测的数据暂时存储在内部存储器。利用现有的电缆以电力线载波通信方式传送数据,不需要增加额外的通信线缆,和现有的太阳能发电系统完全兼容。智能监控器(207)将数字信号指令调制成电力线载波信号,该信号通过现有的电缆下传给光伏嗅探器(201)的通信模块(105),通信模块(105)将接收到的电力线载波信号解调成数字信号,传给数字信号控制器(103)。接收到智能监控器(207)的发送指令后,数字信号控制器(103)控制通信模块(105),将检测数据和太阳能电池组件的序列号一起调制成电力线载波信号,通过现有的电缆上传至智能监控器(207),再由智能监控器(207)将电力线载波信号解调成数字信号之后,上传至监控网站服务器(210),以实现对太阳能发电站每个太阳能电池组件(101)进行监控管理。
当光伏嗅探器(201)接收到智能监控器(207)发出的上传数据指令时,测量数据和太阳能电池组件(101)的序列号一起由通信模块(105)以电力线载波通信方式经汇流箱(202)、直流配电柜(203),由逆变器(204)中继,传送到智能监控器(207),智能监控器(207)再通过路由器(208)从网络(209)将数据上传至监控网站服务器(210),监控网站服务器(210)根据太阳能电池组件(101)的电压、电流、温度来判定它是否工作正常。如果数据不正常,则产生报警提示,维护人员可以根据报警提示去检查及维护太阳能电池组件(101)。
本实用新型能够直观地监控太阳能电池组件(101)的工作状态,并且计算出每一块太阳能电池组件(101)的产能,简单地识别优化潜力。可以快速简单地定位故障,不再需要人工的检查操作,从而避免高额的检查费和定期保养费用。确保太阳能电站任何时候都正常运行,确保投资者的盈利。
附图说明
图1为光伏嗅探器内部结构图。
图2为光伏嗅探器的系统应用图。
附图1:辅助电源(102)、数字信号控制器(103)、检测模块(104)、通信模块(105)。
附图2:光伏嗅探器(201)、汇流箱(202)、直流配电柜(203)、逆变器(204)、交流配电柜(205)、公共电网(206)、智能控制器(207)、路由器(208)、网络(209)、监控网站服务器(210)。
具体实施方式
在附图1中,光伏嗅探器(201)通过辅助电源(102)从太阳能电池组件(101)获取电源,产生稳定的直流电压,给数字信号控制器(103)、检测模块(104)、通信模块(105)供电。
在极端情况下,当太阳能电池组件(101)被完全遮盖时,辅助电源(102)无法从太阳能电池组件(101)产生稳定的电压,其它模块也将无法正常工作,这时没有信号送往监控网站服务器(210),而同一时刻周围其它太阳能电池组件(101)工作正常,系统可以判定该太阳能电池组件(101)处于非正常工作状态。
数字信号控制器(103)对检测模块(104)和通信模块(105)进行控制。
检测模块(104)的输入端连接太阳能电池组件(101)的输出端,它由数字信号控制器(103)控制,每隔一定时间对太阳能电池组件(101)的输出电压、电流、以及接线盒的内部温度进行检测,检测结果暂时存储于内部存储器中。
通信模块(105)接收智能监控器(207)发出的指令,将智能监控器(207)传送过来的电力线载波信号解调成数字信号,然后将指令传递给数字信号控制器(103);当接收到智能监控器(207)的数据发送指令时,由数字信号控制器控制(103),将存储在内部存储器的检测数据,和太阳能电池组件的序列号一起,调制成电力线载波信号,上传至智能监控器(207)。
Claims (5)
1.一种光伏嗅探器,其特征在于:安装在太阳能电池组件的接线盒里,每个太阳能电池组件对应一个光伏嗅探器,由太阳能电池组件提供工作电压,通过检测模块对太阳能电池组件的输出电压、输出电流、太阳能接线盒的内部温度进行检测,并将检测数据通过通信模块上传至智能监控器,再由智能监控器上传至监控网站服务器,以实现对太阳能发电站每个太阳能电池组件进行监控管理。
2.根据权利要求1所述的光伏嗅探器,其特征在于:由辅助电源从太阳能电池组件获取工作电源,转换为其它模块所需的工作电压。
3.根据权利要求1所述的光伏嗅探器,其特征在于:通信模块、检测模块的工作由数字信号控制器控制,并将检测模块检测的数据暂时存储在内部存储器;当接收到智能监控器发出的发送指令时,将检测数据和太阳能电池组件的序列号一起通过通信模块上传至智能监控器。
4.根据权利要求1或3所述的光伏嗅探器,其特征在于:检测模块由数字信号控制器控制,每隔一定时间对太阳能电池组件的输出电压、输出电流、太阳能接线盒的内部温度进行检测。
5.根据权利要求1或3所述的光伏嗅探器,其特征在于:通信模块把从智能监控器发来的电力线载波信号解调成数字信号,传给数字信号控制器;把检测数据和太阳能电池组件的序列号调制成电力线载波信号,上传至智能监控器。
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Cited By (1)
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CN114400791A (zh) * | 2022-03-25 | 2022-04-26 | 深圳市中旭新能源有限公司 | 基于物联网的智能光伏发电监控装置及自动关断方法 |
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Publication number | Priority date | Publication date | Assignee | Title |
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CN114400791A (zh) * | 2022-03-25 | 2022-04-26 | 深圳市中旭新能源有限公司 | 基于物联网的智能光伏发电监控装置及自动关断方法 |
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