CN205178979U - Solar PV modules monitors alarm system - Google Patents
Solar PV modules monitors alarm system Download PDFInfo
- Publication number
- CN205178979U CN205178979U CN201520839252.3U CN201520839252U CN205178979U CN 205178979 U CN205178979 U CN 205178979U CN 201520839252 U CN201520839252 U CN 201520839252U CN 205178979 U CN205178979 U CN 205178979U
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- circuit
- monitor
- alarm system
- signal
- signal receiving
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- 238000004891 communication Methods 0.000 claims abstract description 8
- 230000000087 stabilizing Effects 0.000 claims description 9
- 238000005070 sampling Methods 0.000 claims description 6
- 239000000969 carrier Substances 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 230000002159 abnormal effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 210000004027 cells Anatomy 0.000 description 1
- 210000003850 cellular structures Anatomy 0.000 description 1
- 238000010835 comparative analysis Methods 0.000 description 1
- 230000000875 corresponding Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001360 synchronised Effects 0.000 description 1
Classifications
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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
Abstract
The utility model relates to a solar PV modules monitors alarm system, including photovoltaic module, subassembly control unit, signal reception circuit and main website point, all integrated in every photovoltaic module have a subassembly to monitor the unit, and subassembly control unit is the collection transmitting circuit of signal, a plurality of photovoltaic module establish ties in proper order to there is the signal reception circuit through the dc power line connection, the signal reception circuit passes through communication cable and connects main website point. The warning can be sent automatically in systematic use when subassembly temperature voltage abnormity, power station maintainer can pinpoint collection flow box warning branch road through monitoring the backstage in time, investigates the unusual subassembly of this branch road again, and save time promotes work efficiency.
Description
Technical field
The utility model belongs to field of photovoltaic power generation, especially a kind of solar photovoltaic assembly monitor and alarm system.
Background technology
In photovoltaic plant, need to lay a large amount of photovoltaic modulies, realize converting solar energy into electrical energy.If heating, voltage, current anomaly etc. appear in photovoltaic battery panel, do not have effective monitoring means can be difficult to location or be difficult to find in advance and cause unnecessary loss.Traditional method has monitoring chip to add communication cable, monitoring chip adds wireless communication method etc.These methods or need additionally to lay communication cable; Need to increase wireless transmitting unit and radio receiver, all need to increase higher cost.
The patent document of analogous technical fields is given through retrieval:
A kind of solar energy power generating intelligent monitoring is with user terminal warning system (CN103138393A), comprise the detecting signal unit voltage of load being carried out to detection in real time, synchronous warning device of reporting to the police is carried out when the voltage of load occurs abnormal, according to the controller that detecting signal unit institute detection signal controls warning device, load is carried out to the video monitor of monitoring in real time, for store solar photovoltaic generation system send the photovoltaic storage battery of electric energy and direct current be converted to alternating current and be supplied to the inverter of load, detecting signal unit, controller, video monitor and warning device composition supervisory control system, photovoltaic storage battery is powered to load by inverter, inverter is controlled by controller, controller connects with video monitor.The utility model circuit design rationally, easy-to-connect, use is easy and simple to handle and use cost is low, result of use is good, can carry out real-time effective monitoring at user terminal to whole photovoltaic supervisory control system.
A kind of Intelligent wiring box (CN103000719A), it is characterized in that: described Intelligent wiring box inside is provided with intelligent assembly, described intelligent assembly comprises the detection module of the work state information for detecting single cell panel, CPU module and transport module, the output of wherein said detection module connects the input of described CPU module, and the output of described CPU module connects described transport module.The Intelligent wiring box that the utility model provides, utilizes intelligent assembly can detect the running status of each solar panel, thus decreases the malfunction elimination time, improve efficiency, be beneficial to daily Maintenance and Repair.
Comparative analysis, above published patented technology and known public technology technology all required for protection from present patent application is different, and the technique effect produced also exists difference.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art part, provide a kind of structure simple, detect accurately, quickness and high efficiency, reliable and stable solar photovoltaic assembly monitor and alarm system.
The utility model solves its technical problem and takes following technical scheme to realize:
A kind of solar photovoltaic assembly monitor and alarm system, comprise photovoltaic module, monitor component unit, signal receiving circuit and home site, it is characterized in that: be all integrated with a monitor component unit in each photovoltaic module, this monitor component unit is the collection radiating circuit of signal; Multiple photovoltaic module is connected successively, and is connected with signal receiving circuit by DC power line, and signal receiving circuit connects home site by communication cable.
And described multiple photovoltaic module is followed in series to form photovoltaic group string, multiple photovoltaic group string is connected with signal receiving circuit respectively by DC power line.
And described signal receiving circuit is integrated in header box or receiving system.
And described home site is inverter or monitoring backstage.
And described monitor component unit comprises voltage stabilizing circuit, MCU microcontroller, voltage sensor, current sensor, temperature sensor and switching device, has a voltage stabilizing circuit at modules in parallel, voltage stabilizing circuit connects MCU microcontroller; MCU microcontroller is connected to voltage sensor, current sensor and temperature sensor; A switching device is connected with between MCU microcontroller and DC power line.
And, described signal receiving circuit comprises signal sampling circuit, partiting dc circuit, band pass filter, amplifying circuit, MCU microcontroller and communicating circuit, and described sample circuit, partiting dc circuit, band pass filter, amplifying circuit, MCU microcontroller and communicating circuit are connected successively.
Advantage of the present utility model and good effect are:
1, native system structure is simple, and its monitor component unit make use of component characteristic, and alarm signal is sent in the form of a carrier wave by DC power line, do not increase extra checkout gear and dispensing device; Receiving circuit accessible site, in intelligent junction box, does not increase extra receiving system.
2, native system is just when monitoring assembly exception, sends warning pulse, enormously simplify data volume and hardware circuit, both improve reliability, again reduce cost.
3, the use of native system can send warning automatically when assembly temperature electric voltage exception, and power plant maintenance personnel can accurately locate header box warning branch road in time by monitoring backstage, then investigate the abnormal assembly of this branch road, save time, and promote operating efficiency.
Accompanying drawing explanation
Fig. 1 is overall system structure schematic diagram of the present utility model;
Fig. 2 is monitor component unit internal circuit configuration schematic diagram;
Fig. 3 is signal receiving circuit schematic diagram.
Embodiment
Below in conjunction with accompanying drawing, also by specific embodiment, the utility model is described in further detail, and following examples are descriptive, are not determinate, can not limit protection range of the present utility model with this.
A kind of solar photovoltaic assembly monitor and alarm system, comprises multiple photovoltaic module, monitor component unit, signal receiving circuit and home site,
All be integrated with a monitor component unit in each photovoltaic module, monitor component unit is the collection radiating circuit of signal;
Multiple photovoltaic module is followed in series to form multiple photovoltaic group string, and multiple photovoltaic group string is connected with signal receiving circuit as multiple branch road respectively by DC power line, and the signal receiving circuit of the present embodiment is integrated in header box or receiving system;
Signal receiving circuit connects home site by communication cable, and the home site of the present embodiment is inverter or monitoring backstage.
Described collection radiating circuit can the voltage of monitoring assembly, electric current and temperature, and warning threshold can be set, if voltage, electric current or temperature exceed set warning threshold, collection radiating circuit will be superimposed upon on DC power line with the pulse signal of certain frequency to be launched; If temperature, voltage, electric current are all normal, then not transmitted pulse.
Described signal receiving circuit can leach the pulse of characteristic frequency on DC power line, and through amplifying process, obtain the discernible pulse signal of MCU, MCU calculates the number of pulse in the regular hour, determines it is that assembly temperature is reported to the police or voltage alarm.This receiving element can be integrated in intelligent junction box, also can form receiving system separately, offers inverter or monitoring backstage by communication cable (such as RS485).
As shown in Figure 2, monitor component unit comprises voltage stabilizing circuit 106, MCU microcontroller 105, voltage sensor 101, current sensor 102, temperature sensor 103 and switching device 104, a voltage stabilizing circuit is had at modules in parallel, component voltage is converted into the supply power voltage of MCU microcontroller by this voltage stabilizing circuit, this MCU microcontroller is connected to voltage sensor, current sensor and temperature sensor, this voltage sensor, current sensor and temperature sensor are respectively used to the voltage to assembly, electric current and temperature are sampled, a switching device is connected with between MCU microcontroller and DC power line, sampled signal is after the calculation process of MCU, when there is abnormal signal, alarm signal is launched by the mode of direct current carrier by control switch device.
Temperature sensor also accessible site is inner at MCU.
This monitor component unit can be arranged on assembly junction box inside.
As shown in Figure 3, signal receiving circuit comprises signal sampling circuit 201, partiting dc circuit 202, band pass filter 203, amplifying circuit 204, MCU microcontroller 205 and communicating circuit 206, described sample circuit, partiting dc circuit, band pass filter, amplifying circuit, MCU microcontroller and communicating circuit are connected successively, signal receiving circuit can be integrated in other equipment (such as header box), also can make separately a unit.
The effect of each several part is respectively:
Signal sampling circuit, takes electric resistance partial pressure mode usually;
Partiting dc circuit, is responsible for AC signal to extract;
Band pass filter, by the signal extraction of the fixed frequency of the monitor component circuit transmission of fixed frequency out;
Amplifying circuit, the signal transacting sent by band pass filter becomes MCU can the pulse signal of range of receiving;
MCU microcontroller, is responsible for statistics pulse signal, analyzes voltage, electric current, temperature information, judges whether to report to the police;
Communicating circuit can be RS485, CAN etc., is responsible for warning message to be transferred to inverter or background monitoring.
The method of work of native system is:
(1) Real-Time Monitoring: each assembly comprises a monitor component unit, this monitor component unit can monitor the voltage of corresponding assembly, electric current and temperature, presets warning threshold;
When the voltage of assembly, electric current or temperature anomaly, monitor component unit sends alarm signal with the impulse form of certain frequency, and utilizes the characteristic of photovoltaic module, and this pulse signal transfers out with the form of power carrier;
Monitor component unit make use of component characteristic, and alarm signal is sent in the form of a carrier wave by DC power line, and monitor component unit, only at voltage, temperature anomaly alarm, is normally failure to actuate;
(2) identification signal: in header box, integrated signal receiving circuit receives the pulse signal of monitor component unit transmission, receiving circuit extracts the discernible pulse signal of MCU, and MCU calculates pulse number at special time and determines that photovoltaic cell component is voltage, electric current is reported to the police or temperature alarming;
(3) report to the police: alarm signal is transferred to monitoring backstage or inverter by connection by MCU.
Although disclose embodiment of the present utility model and accompanying drawing for the purpose of illustration, but it will be appreciated by those skilled in the art that: in the spirit and scope not departing from the utility model and claims, various replacement, change and amendment are all possible, therefore, scope of the present utility model is not limited to the content disclosed in embodiment and accompanying drawing.
Claims (6)
1. a solar photovoltaic assembly monitor and alarm system, comprise photovoltaic module, monitor component unit, signal receiving circuit and home site, it is characterized in that: be all integrated with a monitor component unit in each photovoltaic module, this monitor component unit is the collection radiating circuit of signal; Multiple photovoltaic module is connected successively, and is connected with signal receiving circuit by DC power line, and signal receiving circuit connects home site by communication cable.
2. solar photovoltaic assembly monitor and alarm system according to claim 1, is characterized in that: described multiple photovoltaic module is followed in series to form photovoltaic group string, and multiple photovoltaic group string is connected with signal receiving circuit respectively by DC power line.
3. solar photovoltaic assembly monitor and alarm system according to claim 1, is characterized in that: described signal receiving circuit is integrated in header box or receiving system.
4. solar photovoltaic assembly monitor and alarm system according to claim 1, is characterized in that: described home site is inverter or monitoring backstage.
5. solar photovoltaic assembly monitor and alarm system according to claim 1, it is characterized in that: described monitor component unit comprises voltage stabilizing circuit, MCU microcontroller, voltage sensor, current sensor, temperature sensor and switching device, have a voltage stabilizing circuit at modules in parallel, voltage stabilizing circuit connects MCU microcontroller; MCU microcontroller is connected to voltage sensor, current sensor and temperature sensor; A switching device is connected with between MCU microcontroller and DC power line.
6. solar photovoltaic assembly monitor and alarm system according to claim 1, it is characterized in that: described signal receiving circuit comprises signal sampling circuit, partiting dc circuit, band pass filter, amplifying circuit, MCU microcontroller and communicating circuit, described sample circuit, partiting dc circuit, band pass filter, amplifying circuit, MCU microcontroller and communicating circuit are connected successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839252.3U CN205178979U (en) | 2015-10-27 | 2015-10-27 | Solar PV modules monitors alarm system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520839252.3U CN205178979U (en) | 2015-10-27 | 2015-10-27 | Solar PV modules monitors alarm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178979U true CN205178979U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520839252.3U Expired - Fee Related CN205178979U (en) | 2015-10-27 | 2015-10-27 | Solar PV modules monitors alarm system |
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| CN (1) | CN205178979U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245186A (en) * | 2015-10-27 | 2016-01-13 | 天津天传新能源电气有限公司 | Solar photovoltaic assembly monitoring and alarming system and working method thereof |
| CN105978476A (en) * | 2016-06-03 | 2016-09-28 | 丰郅(上海)新能源科技有限公司 | Inverter |
| CN110243416A (en) * | 2019-07-12 | 2019-09-17 | 福州大学 | A kind of intelligent photovoltaic array header box monitoring system based on NB-IOT |
-
2015
- 2015-10-27 CN CN201520839252.3U patent/CN205178979U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105245186A (en) * | 2015-10-27 | 2016-01-13 | 天津天传新能源电气有限公司 | Solar photovoltaic assembly monitoring and alarming system and working method thereof |
| CN105978476A (en) * | 2016-06-03 | 2016-09-28 | 丰郅(上海)新能源科技有限公司 | Inverter |
| CN110243416A (en) * | 2019-07-12 | 2019-09-17 | 福州大学 | A kind of intelligent photovoltaic array header box monitoring system based on NB-IOT |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20211027 |