CN104505939A - Photovoltaic cell lightning arrester with photovoltaic cell damage detecting and monitoring function - Google Patents
Photovoltaic cell lightning arrester with photovoltaic cell damage detecting and monitoring function Download PDFInfo
- Publication number
- CN104505939A CN104505939A CN201410788713.9A CN201410788713A CN104505939A CN 104505939 A CN104505939 A CN 104505939A CN 201410788713 A CN201410788713 A CN 201410788713A CN 104505939 A CN104505939 A CN 104505939A
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- photovoltaic cell
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- lightning
- micro controller
- circuit
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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
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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
- 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
- Y04S40/126—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 using wireless data transmission
Abstract
The invention provides a photovoltaic cell lightning arrester with a photovoltaic cell damage detecting and monitoring function. The photovoltaic cell lightning arrester comprises a micro controller module, a photovoltaic cell detecting module, a photovoltaic cell lightning arresting module and a wireless communication module, wherein the photovoltaic cell detecting module, the photovoltaic cell lightning arresting module and the wireless communication module are connected with the micro controller module; the photovoltaic cell detecting module is used for detecting output voltage and/or output current of a photovoltaic cell; the photovoltaic cell lightning arresting module is used for detecting leak current flowing through the lightning arresting module; the micro controller module is connected with a remote end or an upper computer through the wireless communication module and is used for processing and feeding back cell output voltage and output current information detected by the photovoltaic cell detecting module, and leak current information detected by the photovoltaic cell lightning arresting module. Photovoltaic cell lightning arresting protection, photovoltaic cell damage self detection, lightning arresting module failure self detection, and wireless transmission of photovoltaic cell address and working state information and lightning arresting module working state information are finished by the photovoltaic cell lightning arrester, and the working states of the photovoltaic cell and the lightning arresting module are grasped in real time.
Description
Technical field
The present invention relates to field of photovoltaic technology, be specifically related to a kind of with the photovoltaic cell lightning protection device of photovoltaic cell from damage test and monitoring.
Background technology
Under the situation that traditional energy is day by day exhausted, new forms of energy are excavated and application technology becomes the support of whole world country, and the focus of relevant technologies personnel research.Solar energy is a kind of clean energy resource, is endless in theory, and photovoltaic generation solar energy is directly converted to the effective way that electric energy is the acquisition energy.Along with the maturation of photovoltaic generation key technology, global many countries all establish large-sized photovoltaic power station.Photovoltaic cell is as direct device solar energy being converted to electric energy, most important in photovoltaic generating system.And induction lightening pulse is called one of photovoltaic cell deadline factor, so photovoltaic array has all installed lightning protection device.The inefficacy of lightning protection device can make photovoltaic cell lose lightening protection; the lightning protection device simultaneously lost efficacy also may occur that spontaneous combustion causes loss to expand further; therefore need to change the lightning protection device lost efficacy in time; equally also must change the photovoltaic cell damaged in time, otherwise conversion efficiency reduces greatly.Existing lightning protection device or other photovoltaic apparatus all cannot react the operating state of photovoltaic cell, lightning-protection module, and positional information, and cause photo-voltaic power generation station operation maintenance, maintenance workload greatly, staff is dangerous, find to damage parts not in time.
Summary of the invention
Based on above-mentioned background technology; the present invention proposes a kind of with the photovoltaic cell lightning protection device of photovoltaic cell from damage test and monitoring; object is to complete photovoltaic cell lightning protection, photovoltaic cell damages Autonomous test, lightning-protection module inefficacy Autonomous test; and photovoltaic cell address and work state information; the wireless transmission of Thunder Protection state information; realize the operating state grasping photovoltaic cell and lightning-protection module in real time; help attendant effectively to find fast and change to the photovoltaic cell of infringement and the lightning-protection module of inefficacy, reducing follow-up equipment and damage and loss.Its technical scheme adopted is as follows:
With photovoltaic cell from the photovoltaic cell lightning protection device damaging test and monitoring, comprise micro controller module, and the excellent battery detecting module of light, photovoltaic cell lightning-protection module and the wireless communication module that are connected with described micro controller module; Described photovoltaic cell detection module, for detect photovoltaic cell output voltage and or output current; Described photovoltaic cell lightning-protection module, for detecting the leakage current flowing through lightning-protection module; Described micro controller module is connected with far-end or host computer by described wireless communication module, and process and feed back the cell output voltage and output current information that are detected by photovoltaic cell detection module, and the leakage current information detected by photovoltaic cell lightning-protection module.
In the middle of one or more embodiment of the present invention, described photovoltaic cell detection module comprises DC detection circuit, voltage detecting circuit based on Hall element; Described DC detection circuit comprises current Hall element U1, reference voltage element U3, amplifier element U2A, and resistor network R1 ~ R6, and connect with photovoltaic cell positive pole output line, photovoltaic cell output current is transformed to voltage Vout and is transported to micro controller module; Described voltage detecting circuit comprises voltage-stabiliser tube DZ1, optocoupler U4 and resistance R7, R8, and and be connected between the positive and negative output line of photovoltaic cell, photovoltaic cell output voltage is detected isolation and amplifier Vuout and delivers to micro controller module.
In the middle of one or more embodiment of the present invention, described lightning-protection module comprises three grades of lightning current leadage circuits, leakage current detection circuit, and hot safety element FUS; Described three grades of lightning current leadage circuits comprise the differential mode induction lightening pulse suppression circuit be made up of wink quick diode group TVS1, pressure limiting module group RVn in parallel and gas discharge tube GD1, and form common mode pulse surge suppression circuit by RV1, RV2 and GD2; Described leakage current detection circuit is by fine leak current amplifier U5A, pulse voltage limiting device TVS2, optocoupler U6, and resistor network R9 ~ R11 forms, when lightning protection component inefficacy causes leakage current to exceed certain threshold values, the pulse signal that representative was lost efficacy sends to micro controller module.
In the middle of one or more embodiment of the present invention, described micro controller module comprises A/D convertor circuit, address arranges panel, and microcontroller circuit; Described microcontroller circuit comprises single-chip microcomputer or other microcontroller chips, and the peripheral circuit that maintenance microcontroller chip normally works; Described A/D convertor circuit is used for the analog signal of detection to be converted to digital signal; It is common mechanical key that described address arranges panel, for arranging the address code of photovoltaic cell.
In the middle of one or more embodiment of the present invention, described micro-device module processed by described wireless communication module distally or host computer send wireless digital content, described wireless digital content comprise represent photovoltaic cell location and ranks address, photovoltaic cell state information, and lightning-protection module state information.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1) in photo-voltaic power generation station photovoltaic cell lightning-protection module failure real-time monitoring, at present temporarily without Patents.Producing leakage current by detecting voltage-limiting element inefficacy in lightning-protection module, whether can lose efficacy by real-time judge lightning-protection module, and the position of inefficacy lightning-protection module can be determined fast, thus can accomplish to change lightning-protection module in time.
2) lightning-protection module group is provided with Thermal Cutoffs, and when lightning protection component inefficacy causes leakage current to increase, Thermal Cutoffs can disconnect automatically, cuts off the connection of lightning-protection module and photovoltaic cell in time, can prevent lightning protection component from occurring the fire that short-circuit failure causes.
Accompanying drawing explanation
Fig. 1 is the theory diagram of lightning protection device of the present invention.
Fig. 2 is the theory diagram of micro controller module of the present invention.
Fig. 3 is the DC detection circuit schematic diagram of photovoltaic cell current detection module of the present invention.
Fig. 4 is the voltage detecting circuit schematic diagram of photovoltaic cell voltage detection module of the present invention.
Fig. 5 is the lightning-protection module circuit theory diagrams of lightning protection device of the present invention.
Embodiment
As follows by reference to the accompanying drawings, the application's scheme is further described:
As shown in Figure 1, a kind of with photovoltaic cell from damaging the photovoltaic cell lightning protection device of test and monitoring, comprise micro controller module 1, and with the excellent battery detecting module 2 of light of described microcontroller 1 model calling, photovoltaic cell lightning-protection module 3 and wireless communication module 4; Described photovoltaic cell detection module 2, for detect photovoltaic cell output voltage and or output current; Described photovoltaic cell lightning-protection module 3, for detecting the leakage current flowing through lightning-protection module 3; Described micro controller module 1 is connected with far-end or host computer by described wireless communication module 4, and process and feed back the cell output voltage and output current information that are detected by photovoltaic cell detection module 2, and the leakage current information detected by photovoltaic cell lightning-protection module 3.
As shown in Figure 2, described micro controller module 1 comprises A/D convertor circuit 11, address arranges panel 12, and microcontroller circuit 13; Described microcontroller circuit 13 comprises single-chip microcomputer or other microcontroller chips, and the peripheral circuit that maintenance microcontroller chip normally works; Described A/D convertor circuit 11 is for being converted to digital signal by the analog signal of detection, and AD transfers chip model to and can select according to specific needs; It is common mechanical key that described address arranges panel 12, for arranging the address code of photovoltaic cell.Particularly, described address arranges panel 12 and adopts matrix function word keyboard, for arranging the address information of photovoltaic cell or lightning-protection module.
Described photovoltaic cell detection module 2 comprises DC detection circuit, voltage detecting circuit based on Hall element;
As shown in Figure 3, described DC detection circuit comprises current Hall element U1, reference voltage element U3, amplifier element U2A, and resistor network R1 ~ R6, and connect with photovoltaic cell positive pole output line, photovoltaic cell output current is transformed to voltage Vout and is transported to micro controller module;
As shown in Figure 4, described voltage detecting circuit comprises voltage-stabiliser tube DZ1, optocoupler U4 and resistance R7, R8, and and be connected between the positive and negative output line of photovoltaic cell, photovoltaic cell output voltage is detected isolation and amplifier Vuout and delivers to micro controller module.
As shown in Figure 5, described lightning-protection module 3 comprises three grades of lightning current leadage circuits, leakage current detection circuit, and hot safety element FUS; Described three grades of lightning current leadage circuits comprise the differential mode induction lightening pulse suppression circuit be made up of wink quick diode group TVS1, pressure limiting module group RVn in parallel and gas discharge tube GD1, and form common mode pulse surge suppression circuit by RV1, RV2 and GD2; Described leakage current detection circuit is by fine leak current amplifier U5A, pulse voltage limiting device TVS2, optocoupler U6, and resistor network R9 ~ R11 forms, when lightning protection component inefficacy causes leakage current to exceed certain threshold values, the pulse signal that representative was lost efficacy sends to micro controller module.
Described micro-device module processed 1 by described wireless communication module 4 distally or host computer send wireless digital content, described wireless digital content comprise represent photovoltaic cell location and ranks address, photovoltaic cell state information, and lightning-protection module state information.
The control flow of the present embodiment is as follows:
(1) after powering on, by micro controller module initialization modules;
(2) after initialization, by arranging panel photovoltaic cell address information---address information comprises three parts, is respectively photovoltaic battery array region, institute is expert at, column forms, photovoltaic cell normal operating parameters, lightning-protection module inefficacy threshold values.
(3) micro controller module receives electric current, the voltage parameter that photovoltaic cell detection module exports, and is converted to digital quantity and makes comparisons with the parameter that prestores, and confirms photovoltaic cell operating state---with 1 representing normally, representing damage with 0; Judge lightening protect circuit output pulse level value, confirm lightning-protection module operating state---represent normal with 0,1 represents inefficacy.
(4) micro controller module is by photovoltaic address information code, photovoltaic cell conditional code, and lightning-protection module conditional code is combined into wireless encoding, is sent to Surveillance center by wireless module.
Above-mentioned preferred implementation should be considered as illustrating of the application's scheme implementation mode, allly to duplicate with the application's scheme, technology that is approximate or that make based on this is deduced, replaces, improvement etc., all should be considered as the protection range of this patent.
Claims (5)
1., with the photovoltaic cell lightning protection device of photovoltaic cell from damage test and monitoring, it is characterized in that: comprise micro controller module, and the excellent battery detecting module of light, photovoltaic cell lightning-protection module and the wireless communication module that are connected with described micro controller module; Described photovoltaic cell detection module, for detect photovoltaic cell output voltage and or output current; Described photovoltaic cell lightning-protection module, for detecting the leakage current flowing through lightning-protection module; Described micro controller module is connected with far-end or host computer by described wireless communication module, and process and feed back the cell output voltage and output current information that are detected by photovoltaic cell detection module, and the leakage current information detected by photovoltaic cell lightning-protection module.
2. according to claim 1 with the photovoltaic cell lightning protection device of photovoltaic cell from damage test and monitoring, it is characterized in that: described photovoltaic cell detection module comprises DC detection circuit, voltage detecting circuit based on Hall element; Described DC detection circuit comprises current Hall element U1, reference voltage element U3, amplifier element U2A, and resistor network R1 ~ R6, and connect with photovoltaic cell positive pole output line, photovoltaic cell output current is transformed to voltage Vout and is transported to micro controller module; Described voltage detecting circuit comprises voltage-stabiliser tube DZ1, optocoupler U4 and resistance R7, R8, and and be connected between the positive and negative output line of photovoltaic cell, photovoltaic cell output voltage is detected isolation and amplifier Vuout and delivers to micro controller module.
3. the photovoltaic cell lightning protection device certainly damaging test and monitoring with photovoltaic cell according to claim 1 and 2, is characterized in that: described lightning-protection module comprises three grades of lightning current leadage circuits, leakage current detection circuit, and hot safety element FUS; Described three grades of lightning current leadage circuits comprise the differential mode induction lightening pulse suppression circuit be made up of wink quick diode group TVS1, pressure limiting module group RVn in parallel and gas discharge tube GD1, and form common mode pulse surge suppression circuit by RV1, RV2 and GD2; Described leakage current detection circuit is by fine leak current amplifier U5A, pulse voltage limiting device TVS2, optocoupler U6, and resistor network R9 ~ R11 forms, when lightning protection component inefficacy causes leakage current to exceed certain threshold values, the pulse signal that representative was lost efficacy sends to micro controller module.
4. the photovoltaic cell lightning protection device certainly damaging test and monitoring with photovoltaic cell according to claim 3, is characterized in that: described micro controller module comprises A/D convertor circuit, address arranges panel, and microcontroller circuit; Described microcontroller circuit comprises single-chip microcomputer or other microcontroller chips, and the peripheral circuit that maintenance microcontroller chip normally works; Described A/D convertor circuit is used for the analog signal of detection to be converted to digital signal; It is common mechanical key that described address arranges panel, for arranging the address code of photovoltaic cell.
5. according to claim 1 with the photovoltaic cell lightning protection device of photovoltaic cell from damage test and monitoring, it is characterized in that: described micro-device module processed by described wireless communication module distally or host computer send wireless digital content, described wireless digital content comprise represent photovoltaic cell location and ranks address, photovoltaic cell state information, and lightning-protection module state information.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410788713.9A CN104505939B (en) | 2014-12-17 | 2014-12-17 | The photovoltaic cell lightning protection device monitored with photovoltaic cell from damage detection |
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| CN201410788713.9A CN104505939B (en) | 2014-12-17 | 2014-12-17 | The photovoltaic cell lightning protection device monitored with photovoltaic cell from damage detection |
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| CN104505939A true CN104505939A (en) | 2015-04-08 |
| CN104505939B CN104505939B (en) | 2017-07-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016192616A1 (en) * | 2015-06-03 | 2016-12-08 | 华为技术有限公司 | Method and apparatus for monitoring photovoltaic modules |
| WO2018099324A1 (en) * | 2016-11-30 | 2018-06-07 | 比亚迪股份有限公司 | Power battery overcharge protection circuit and device, and battery management system |
| CN113113902A (en) * | 2021-04-07 | 2021-07-13 | 深圳市优威电气技术有限公司 | LED power supply protection device and method based on separation control |
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| CN202798163U (en) * | 2012-09-25 | 2013-03-13 | 广东易事特电源股份有限公司 | Intelligent photovoltaic combiner box |
| CN103197169A (en) * | 2013-02-25 | 2013-07-10 | 河海大学常州校区 | Lightning arrester comprehensive performance detection circuit |
| KR101415163B1 (en) * | 2013-01-31 | 2014-07-07 | 주식회사 케이디파워 | solar power monitoring system |
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| CN202798163U (en) * | 2012-09-25 | 2013-03-13 | 广东易事特电源股份有限公司 | Intelligent photovoltaic combiner box |
| KR101415163B1 (en) * | 2013-01-31 | 2014-07-07 | 주식회사 케이디파워 | solar power monitoring system |
| CN103197169A (en) * | 2013-02-25 | 2013-07-10 | 河海大学常州校区 | Lightning arrester comprehensive performance detection circuit |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2016192616A1 (en) * | 2015-06-03 | 2016-12-08 | 华为技术有限公司 | Method and apparatus for monitoring photovoltaic modules |
| US10171028B2 (en) | 2015-06-03 | 2019-01-01 | Huawei Technologies Co., Ltd. | Method and apparatus for monitoring photovoltaic module |
| WO2018099324A1 (en) * | 2016-11-30 | 2018-06-07 | 比亚迪股份有限公司 | Power battery overcharge protection circuit and device, and battery management system |
| CN113113902A (en) * | 2021-04-07 | 2021-07-13 | 深圳市优威电气技术有限公司 | LED power supply protection device and method based on separation control |
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| CN104505939B (en) | 2017-07-14 |
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Effective date of registration: 20170619 Address after: 528400 Guangdong province Zhongshan Torch Development Zone, Zhongshan port Yijing Garden (phase three) ge 8 card three AON berth Applicant after: Zhong Shanzhi rump electron Science and Technology Ltd. Address before: 528400 Guangdong city of Zhongshan Province East Beverly Hills 15 building 402 Applicant before: Zhang Yuanhai |
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