CN203365538U - Photovoltaic power generation monitoring device - Google Patents
Photovoltaic power generation monitoring device Download PDFInfo
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- CN203365538U CN203365538U CN201320440993.5U CN201320440993U CN203365538U CN 203365538 U CN203365538 U CN 203365538U CN 201320440993 U CN201320440993 U CN 201320440993U CN 203365538 U CN203365538 U CN 203365538U
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Abstract
The utility model provides a photovoltaic power generation monitoring device. The device comprises a collection unit, a communication unit, and a monitoring unit. An input end of the collection unit is connected to an output end of a photovoltaic panel, and an output end of the collection unit is connected to the communication unit. The collection unit collects a current value, a voltage value and a temperature value of the photovoltaic panel, and sends a current signal, a voltage signal and a temperature signal generated according to the current value, the voltage value and the temperature value to the communication unit. The communication unit is connected to the collection unit and the monitoring unit, and sends the current signal, the voltage signal and the temperature signal received to the monitoring unit. The monitoring unit is connected to the communication unit, and outputs a photovoltaic panel work status signal according to the current signal, the voltage signal and the temperature signal. According to the technical scheme, the device can achieve collection of current, voltage and temperature of the photovoltaic panel and send the data far away to achieve detection of a single photovoltaic assembly.
Description
Technical field
The utility model relates to the photovoltaic power generation technology field, particularly relates to a kind of photovoltaic generation monitoring device.
Background technology
It is predicted, solar energy power generating can occupy the important seat of world energy sources consumption in 21 century, not only wants the Substitute For Partial conventional energy resources, and will become the main body of world energy supplies.Expect the year two thousand thirty, regenerative resource will account for more than 30% in the total energy structure, and the accounting of solar energy power generating in world's total electricity supply also will reach more than 10%; To the year two thousand forty, regenerative resource will account for more than 50% of total energy consumption, and solar energy power generating will account for more than 20% of total electricity; To 21 century end, regenerative resource will account for more than 80% in energy structure, and solar electrical energy generation will account for more than 60%.These numerals are enough to demonstrate the development prospect of photovoltaic industry and the important strategic position at energy field.
The core component of photovoltaic module is solar cell, and in general, the electrical characteristics of each assembly solar cell used are basically identical, otherwise will be bad at electrical property or the battery (problem battery) that is blocked is upper produces so-called hot spot effect.If battery electric current between string and string is inconsistent, can see so-called step curve or abnormal curve having connect on the component characteristic curve of bypass diode.If in assembly, the solar cell performance is originally just inconsistent, must cause assembly generation hot spot phenomenon.The existence that we can see assembly hot spot phenomenon by output characteristic curve and the infrared imaging of assembly.If, because solar cell optical attenuation behind efficiency in assembly descends, in the assembly caused, the solar cell performance is inconsistent.Before we can decay by test suite and the output characteristic curve after decay and infrared imaging see the variation that assembly occurs before and after the illumination.
In the photovoltaic module production run, due to the defect of silicon materials self and the reason of battery manufacture, (as: trimming is not thorough, edge shorting, trimming is excessive, extend at P type layer XiangNXing Ceng center, the edge grid line causes partial short-circuit, sintering is bad, positive electrode or back electrode and silicon chip loose contact, resistance in series increases, sintering is excessive, be about to make PN junction to grill thoroughly, short circuit) cause characteristic to have deviation, the generating efficiency that assembly will have a strong impact on whole group of assembly if can not pinpoint the problems in time in the photovoltaic module operational process is initiation fire even, the ruuning situation of therefore the monitoring photovoltaic module assembly of pinpointing the problems in time is extremely important for photovoltaic generating system.
The photovoltaic generation monitoring system mainly is based on the monitoring of header box and inversion system at present, as: " real-time monitoring and the information acquisition system of distributed photovoltaic power generation " that " the Acrel-2000V8.0 photovoltaic plant electric power monitoring system " that An Kerui company releases, Nanjing Nanrui Jibao Engineering Technology Co., Ltd release.Above system can only be monitored the duty of bunchiness assembly, can't find the problem that single component occurs in earlier stage, has the dead band of monitoring.
Therefore, need a kind of new technical scheme, can realize the monitoring to single photovoltaic module.
The utility model content
The utility model just is being based on the problems referred to above, has proposed a kind of new technical scheme, can realize the monitoring to single photovoltaic module.
In view of this, the utility model proposes a kind of photovoltaic generation monitoring device, be applied to photovoltaic generating system, comprise: collecting unit, communication unit and monitoring unit, wherein, the input end of described collecting unit is connected to the output terminal of photovoltaic panel, the output terminal of described collecting unit is connected to described communication unit, described collecting unit gathers the current signal value in described photovoltaic panel, voltage signal values and temperature signal value, and will be according to described current signal value, the current value stream signal that described voltage signal values and described temperature signal value obtain, voltage value signal and temperature value signal are sent to described communication unit, described communication unit, be connected to described collecting unit and described monitoring unit, and the described current signal received, described voltage signal and described temperature signal are sent to described monitoring unit, described monitoring unit, be connected to described communication unit, according to described current signal, described voltage signal and described temperature signal, exports the working state signal of described photovoltaic panel.
In this technical scheme, the ruuning situation of real time on-line monitoring photovoltaic module, the voltage of photovoltaic panel work, electric current and temperature are uploaded to monitoring unit, monitoring unit can find by the running parameter that contrasts each assembly the problem that photovoltaic panel occurs in time, the prompting operation maintenance personnel process in time, prevent the assembly of can not pinpointing the problems in time in the photovoltaic module operational process, have a strong impact on the even generation of initiation fire accident of generating efficiency of whole group of assembly.
In technique scheme, preferably, also comprise: power supply unit is connected to described collecting unit, described communication unit and described monitoring unit, for described collecting unit, described communication unit and described monitoring unit provide working power.
In this technical scheme, power supply unit comprises Buck conversion circuit.Wherein, can directly utilize the input of the output of photovoltaic panel as power module, so its input employing wide region input, in input 9V～50V scope, all can work.Power module adopts Buck conversion circuit (being the BUCK circuit), by the input voltage conversion and stabilize to 5V, for gathering and communicating circuit provides working power.
In technique scheme, preferably, described collecting unit comprises: the current acquisition subelement, be connected to the output terminal of described photovoltaic panel, and gather and export the current value of described photovoltaic panel; The voltage acquisition subelement, be connected to the output terminal of described photovoltaic panel, gathers and export the magnitude of voltage of described photovoltaic panel; The temperature acquisition subelement, be connected to the output terminal of described photovoltaic panel, gathers and export the temperature value of described photovoltaic panel.
In this technical scheme, it is voltage signal by current conversion that current acquisition can adopt constantan wire, after then amplifying circuit is amplified and converts, sends into Chip Microcomputer A/D acquisition circuit, then calculates the size of electric current by analog to digital conversion and signal handler.Voltage acquisition can adopt the dividing potential drop mode to gather, and temperature acquisition can be used the platinum resistance collection.Certainly, acquisition mode is not limited to above-mentioned several, can also carry out data acquisition by voltage sensor, temperature sensor and current sensor collection etc.
In technique scheme, preferably, described collecting unit also comprises: signal amplification unit, A/D converter and transmitting element, wherein, described signal amplification unit, be connected to described current acquisition subelement, described voltage acquisition subelement and described temperature acquisition subelement, the described current value received, described magnitude of voltage and described temperature value are carried out being sent to described A/D converter after differential amplification; Described A/D converter, be connected to described signal amplification unit, the current value after differential amplification, magnitude of voltage and the temperature value received from described signal amplification unit carried out to analog to digital conversion and obtain described current signal, described voltage signal and described temperature signal; Described transmitting element, be connected to described A/D converter, and described current signal, described voltage signal and described temperature signal are sent to described communication unit.
In technique scheme; preferably; described signal amplification unit comprises holding circuit; filtering circuit and amplifying circuit; wherein; the output terminal of described current acquisition subelement, described voltage acquisition subelement and described temperature acquisition subelement is connected to the input end of described holding circuit; the output terminal of described holding circuit is connected to the input end of described filtering circuit; the output terminal of described filtering circuit is connected to the input end of described amplifying circuit, and the output terminal of described amplifying circuit is connected to described A/D converter.
In technique scheme; preferably; described holding circuit comprises at least one diode; described filtering circuit comprises filter capacitor and filter resistance; one end of described filter capacitor is connected to an end of described filter resistance; the other end of described filter resistance is connected to the negative electrode of described at least one diode, and the other end of described filter capacitor is connected to the anode of described at least one diode.
In technique scheme, preferably, described amplifying circuit comprises operational amplifier, input pickup resistance and at least one feedback resistance, described input pickup resistance is connected between the inverting input of the output terminal of described filtering circuit and described operational amplifier, and described at least one feedback resistance is connected between the output terminal of the inverting input of described operational amplifier and described operational amplifier.
In technique scheme, preferably, described communication unit comprises the CC2530 chip.
In this technical scheme, communication unit both can be used wire communication, also can use wireless telecommunications, for wireless telecommunications, can adopt the CC2530 control chip, this chip has the characteristics of the little long transmission distance of power consumption, and its important technological parameters is: emissive power 10mW-1W; Carrier frequency frequency 433MHz, 470MHz, also can provide 86 to 915MHz carrier frequency, and ISM band, without the application frequency; Modulation system based on GFSK, adopt efficient forward error correction channel technology, improved the ability of the anti-bursty interference of data and random disturbance, at channel bit error rate, is 10
-4the time, can obtain the actual bit error rate 10
-7～10
-8; In the sighting distance situation, antenna height>2 meters, the transmitting distance can reach 800-5000m (BER=1200bps); Transparent data-interface is provided, can adapts to any standard or off-gauge User Agreement; Standard configuration provides 8 channels, if the user needs, can expand to 116 channels; For 3 kinds of interface modes of 2 serial ports, COM1 is Transistor-Transistor Logic level UART interface; The interface baud rate is 1200/2400/4800/9600/19200/38400bps, and form is the 8N1/8E1 User Defined, can transmit the Frame of endless, and user program is more flexible; Under+5V electric power thus supplied, received current<30mA, transmitter current<40mA, quiescent current<5uA, under+2.7V electric power thus supplied, received current<22mA, transmitter current<33mA, quiescent current<5uA; Multiple antenna configuration scheme, meet the application needs that the user is different.
In technique scheme, preferably, described monitor unit comprises display.
In technique scheme, preferably, also comprise: display unit, be connected to described collecting unit, described current value, described magnitude of voltage and described temperature value are shown.
In technique scheme, preferably, described display unit comprises: display screen and/or pilot lamp.
By above technical scheme, can realize collection and teletransmission to photovoltaic panel voltage, electric current and temperature, thereby realize the detection to single photovoltaic module.
At this, it will be understood by a person skilled in the art that above-mentioned each unit module can adopt multiple existing product to realize, includes but not limited to following example:
Collecting unit can be selected the high precision integrated sensor;
Monitoring unit can be selected the display screen that model is MSGl2864;
The current acquisition subelement can be selected the current sensor of background yardstick circumference sensor company limited;
The voltage acquisition subelement can be selected the voltage sensor of background yardstick circumference sensor company limited;
The temperature acquisition subelement can be selected the temperature sensor of background yardstick circumference sensor company limited;
Controller can adopt the controller that the model of Beijing energy moral wisdom Science and Technology Ltd. is FX06;
A/D converter can adopt serial chip ADS7816.
The accompanying drawing explanation
Fig. 1 shows the block diagram according to the photovoltaic generation monitoring device of embodiment of the present utility model;
Fig. 2 shows the schematic diagram according to the collecting unit of embodiment of the present utility model;
Fig. 3 shows the schematic diagram according to the power supply unit of embodiment of the present utility model;
Fig. 4 shows the schematic diagram according to the signal amplification unit of embodiment of the present utility model;
Fig. 5 shows the schematic diagram according to the communication unit of embodiment of the present utility model.
Embodiment
In order more clearly to understand above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the drawings and specific embodiments, the utility model is further described in detail.It should be noted that, in the situation that do not conflict, the application's embodiment and the feature in embodiment can combine mutually.
A lot of details have been set forth in the following description so that fully understand the utility model; but; the utility model can also adopt other to be different from other modes described here and implement, and therefore, protection domain of the present utility model is not subject to the restriction of following public specific embodiment.
Fig. 1 shows the block diagram according to the photovoltaic generation monitoring device of embodiment of the present utility model.
As shown in Figure 1, photovoltaic generation monitoring device 100 according to embodiment of the present utility model, comprise: collecting unit 104, communication unit 106 and monitoring unit 108, wherein, the input end of described collecting unit 104 is connected to the output terminal of photovoltaic panel, the output terminal of described collecting unit 104 is connected to described communication unit 106, the current signal value that described collecting unit 104 gathers in described photovoltaic panel, voltage signal values and temperature signal value, and will be according to described current signal value, the current value stream signal that described voltage signal values and described temperature signal value obtain, voltage value signal and temperature value signal are sent to described communication unit 106, described communication unit 106, be connected to described collecting unit 104 and described monitoring unit 108, and the described current signal received, described voltage signal and described temperature signal are sent to described monitoring unit 108, described monitoring unit 108, be connected to described communication unit 106, according to described current signal, described voltage signal and described temperature signal, exports the working state signal of described photovoltaic panel.
In this technical scheme, the ruuning situation of real time on-line monitoring photovoltaic module, the voltage of photovoltaic panel work, electric current and temperature are uploaded to monitoring unit, monitoring unit can find by the running parameter that contrasts each assembly the problem that photovoltaic panel occurs in time, the prompting operation maintenance personnel process in time, prevent the assembly of can not pinpointing the problems in time in the photovoltaic module operational process, have a strong impact on the even generation of initiation fire accident of generating efficiency of whole group of assembly.
In technique scheme, preferably, also comprise: power supply unit 102 is connected to described collecting unit 104, described communication unit 106 and described monitoring unit 108, for described collecting unit 104, described communication unit 106 and described monitoring unit 108 provide working power.
In this technical scheme, power supply unit comprises Buck conversion circuit.Wherein, can directly utilize the input of the output of photovoltaic panel as power module, so its input employing wide region input, in input 9V～50V scope, all can work.Power module adopts Buck conversion circuit (being the BUCK circuit), by the input voltage conversion and stabilize to 5V, for gathering and communicating circuit provides working power.
In technique scheme, preferably, also comprise: display unit 110, be connected to described collecting unit, described current value, described magnitude of voltage and described temperature value are shown.
In technique scheme, preferably, described display unit 110 comprises: display screen and/or pilot lamp.
Fig. 2 shows the schematic diagram according to the collecting unit of embodiment of the present utility model.
As shown in Figure 2, according to the collecting unit 104 of embodiment of the present utility model, comprise: current acquisition subelement 1042, be connected to the output terminal of described photovoltaic panel, gather and export the current value of described photovoltaic panel; Voltage acquisition subelement 1044, be connected to the output terminal of described photovoltaic panel, gathers and export the magnitude of voltage of described photovoltaic panel; Temperature acquisition subelement 1046, be connected to the output terminal of described photovoltaic panel, gathers and export the temperature value of described photovoltaic panel.
In this technical scheme, it is voltage signal by current conversion that current acquisition can adopt constantan wire, after then amplifying circuit is amplified and converts, sends into Chip Microcomputer A/D acquisition circuit, then calculates the size of electric current by analog to digital conversion and signal handler.Voltage acquisition can adopt the dividing potential drop mode to gather, and temperature acquisition can be used the platinum resistance collection.Certainly, acquisition mode is not limited to above-mentioned several, can also carry out data acquisition by voltage sensor, temperature sensor and current sensor collection etc.
In technique scheme, preferably, described collecting unit 104 also comprises: signal amplification unit 1048, A/D converter 10410 and transmitting element 10412, wherein, described signal amplification unit 1048, be connected to described current acquisition subelement 1042, described voltage acquisition subelement 1044 and described temperature acquisition subelement 1046, the described current value received, described magnitude of voltage and described temperature value are carried out being sent to described A/D converter 10410 after differential amplification; Described A/D converter 10410, be connected to described signal amplification unit 1048, the current value after differential amplification, magnitude of voltage and the temperature value received from described signal amplification unit carried out to analog to digital conversion and obtain described current signal, described voltage signal and described temperature signal; Described transmitting element 10412, be connected to described A/D converter 10410, and described current signal, described voltage signal and described temperature signal are sent to described communication unit 106.
In technique scheme; preferably; described signal amplification unit 1048 comprises holding circuit; filtering circuit and amplifying circuit; wherein; the output terminal of described current acquisition subelement, described voltage acquisition subelement and described temperature acquisition subelement is connected to the input end of described holding circuit; the output terminal of described holding circuit is connected to the input end of described filtering circuit; the output terminal of described filtering circuit is connected to the input end of described amplifying circuit, and the output terminal of described amplifying circuit is connected to described A/D converter.
In technique scheme; preferably; described holding circuit comprises at least one diode; described filtering circuit comprises filter capacitor and filter resistance; one end of described filter capacitor is connected to an end of described filter resistance; the other end of described filter resistance is connected to the negative electrode of described at least one diode, and the other end of described filter capacitor is connected to the anode of described at least one diode.
In technique scheme, preferably, described amplifying circuit comprises operational amplifier, input pickup resistance and at least one feedback resistance, described input pickup resistance is connected between the inverting input of the output terminal of described filtering circuit and described operational amplifier, and described at least one feedback resistance is connected between the output terminal of the inverting input of described operational amplifier and described operational amplifier.
Fig. 3 shows the schematic diagram according to the power supply unit of embodiment of the present utility model.
As shown in Figure 3, comprise Buck conversion circuit according to the power supply unit of embodiment of the present utility model.In this technical scheme, can directly utilize the input of the output of photovoltaic panel as power module, so its input employing wide region input, in input 9V～50V scope, all can work.Power module adopts Buck conversion circuit (being the BUCK circuit), by the input voltage conversion and stabilize to 5V, for gathering and communicating circuit provides working power.
Fig. 4 shows the schematic diagram according to the signal amplification unit of embodiment of the present utility model.
As shown in Figure 4, comprise operational amplifier (as the LM324 operational amplifier) and at least one feedback resistance (as R4, R5) according to the signal amplification unit of embodiment of the present utility model, after described at least one feedback resistance series connection, be connected between the inverting input and output terminal of operational amplifier, by described operational amplifier and described at least one feedback resistance, described current signal, described voltage signal and described temperature signal are carried out to differential amplification.Except differential amplifier circuit, also show translation circuit in Fig. 4, such as, when gathering current signal, by resistance (R1), current signal is transformed into to voltage signal, after being amplified by differential amplifier circuit again and converting, send into Chip Microcomputer A/D acquisition circuit, then by analog to digital conversion and signal handler, calculate the size of electric current.
Fig. 5 shows the schematic diagram according to the communication unit of embodiment of the present utility model.
Communication unit both can be used wire communication, also can use wireless telecommunications, in a kind of preferred exemplary, as shown in Figure 5, can adopt the CC2530 control chip to realize wireless telecommunications, this chip has the characteristics of the little long transmission distance of power consumption, and its important technological parameters is: emissive power 10mW-1W; Carrier frequency frequency 433MHz, 470MHz, also can provide 86 to 915MHz carrier frequency, and ISM band, without the application frequency; Modulation system based on GFSK, adopt efficient forward error correction channel technology, improved the ability of the anti-bursty interference of data and random disturbance, at channel bit error rate, is 10
-4the time, can obtain the actual bit error rate 10
-7～10
-8; In the sighting distance situation, antenna height>2 meter, the transmitting distance can reach 800-5000m (BER=1200bps); Transparent data-interface is provided, can adapts to any standard or off-gauge User Agreement; Standard configuration provides 8 channels, if the user needs, can expand to 116 channels; For 3 kinds of interface modes of 2 serial ports, COM1 is Transistor-Transistor Logic level UART interface; The interface baud rate is 1200/2400/4800/9600/19200/38400bps, and form is the 8N1/8E1 User Defined, can transmit the Frame of endless, and user program is more flexible; Under+5V electric power thus supplied, received current<30mA, transmitter current<40mA, quiescent current<5uA, under+2.7V electric power thus supplied, received current<22mA, transmitter current<33mA, quiescent current<5uA; Multiple antenna configuration scheme, meet the application needs that the user is different.
More than be described with reference to the accompanying drawings the technical solution of the utility model, by the technical solution of the utility model, can have realized collection and teletransmission to photovoltaic panel voltage, electric current and temperature, thereby realized the detection to single photovoltaic module.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a photovoltaic generation monitoring device, be applied to photovoltaic generating system, it is characterized in that, comprising: collecting unit, communication unit and monitoring unit, wherein,
The input end of described collecting unit is connected to the output terminal of photovoltaic panel, the output terminal of described collecting unit is connected to described communication unit, described collecting unit gathers current value, magnitude of voltage and the temperature value in described photovoltaic panel, and current signal, voltage signal and the temperature signal that will obtain according to described current value, described magnitude of voltage and described temperature value are sent to described communication unit;
Described communication unit, be connected to described collecting unit and described monitoring unit, and the described current signal received, described voltage signal and described temperature signal are sent to described monitoring unit;
Described monitoring unit, be connected to described communication unit, according to described current signal, described voltage signal and described temperature signal, exports the working state signal of described photovoltaic panel.
2. photovoltaic generation monitoring device according to claim 1, is characterized in that, also comprises:
Power supply unit, be connected to described collecting unit, described communication unit and described monitoring unit, for described collecting unit, described communication unit and described monitoring unit provide working power.
3. photovoltaic generation monitoring device according to claim 1, is characterized in that, described collecting unit comprises:
The current acquisition subelement, be connected to the output terminal of described photovoltaic panel, gathers and export the current value of described photovoltaic panel;
The voltage acquisition subelement, be connected to the output terminal of described photovoltaic panel, gathers and export the magnitude of voltage of described photovoltaic panel;
The temperature acquisition subelement, be connected to the output terminal of described photovoltaic panel, gathers and export the temperature value of described photovoltaic panel.
4. photovoltaic generation monitoring device according to claim 3, is characterized in that, described collecting unit also comprises: signal amplification unit, A/D converter and transmitting element, wherein,
Described signal amplification unit, be connected to described current acquisition subelement, described voltage acquisition subelement and described temperature acquisition subelement, the described current value received, described magnitude of voltage and described temperature value are carried out being sent to described A/D converter after differential amplification;
Described A/D converter, be connected to described signal amplification unit, the current value after differential amplification, magnitude of voltage and the temperature value received from described signal amplification unit carried out to analog to digital conversion and obtain described current signal, described voltage signal and described temperature signal;
Described transmitting element, be connected to described A/D converter, and described current signal, described voltage signal and described temperature signal are sent to described communication unit.
5. photovoltaic generation monitoring device according to claim 4, is characterized in that, described signal amplification unit comprises holding circuit, filtering circuit and amplifying circuit, wherein,
The output terminal of described current acquisition subelement, described voltage acquisition subelement and described temperature acquisition subelement is connected to the input end of described holding circuit; the output terminal of described holding circuit is connected to the input end of described filtering circuit; the output terminal of described filtering circuit is connected to the input end of described amplifying circuit, and the output terminal of described amplifying circuit is connected to described A/D converter.
6. photovoltaic generation monitoring device according to claim 5; it is characterized in that; described holding circuit comprises at least one diode; described filtering circuit comprises filter capacitor and filter resistance; one end of described filter capacitor is connected to an end of described filter resistance; the other end of described filter resistance is connected to the negative electrode of described at least one diode, and the other end of described filter capacitor is connected to the anode of described at least one diode.
7. photovoltaic generation monitoring device according to claim 5, it is characterized in that, described amplifying circuit comprises operational amplifier, input pickup resistance and at least one feedback resistance, described input pickup resistance is connected between the inverting input of the output terminal of described filtering circuit and described operational amplifier, and described at least one feedback resistance is connected between the output terminal of the inverting input of described operational amplifier and described operational amplifier.
8. photovoltaic generation monitoring device according to claim 2, is characterized in that, described power supply unit comprises Buck conversion circuit.
9. according to the described photovoltaic generation monitoring device of any one in claim 1 to 8, it is characterized in that, also comprise: display unit, this display unit is connected to described collecting unit, and described current value, described magnitude of voltage and described temperature value are shown.
10. photovoltaic generation monitoring device according to claim 9, is characterized in that, described display unit comprises: display screen and/or pilot lamp.
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| CN201320440993.5U CN203365538U (en) | 2013-07-23 | 2013-07-23 | Photovoltaic power generation monitoring device |
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| CN201320440993.5U CN203365538U (en) | 2013-07-23 | 2013-07-23 | Photovoltaic power generation monitoring device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300901A (en) * | 2014-09-11 | 2015-01-21 | 国家电网公司 | Photovoltaic power generation monitoring device based on Internet of Things technology |
| CN104601109A (en) * | 2014-12-25 | 2015-05-06 | 重庆大学 | Photovoltaic hot spot effect detection method for electricity-graph model |
| CN105841829A (en) * | 2016-05-13 | 2016-08-10 | 北京中电博顺智能设备技术有限公司 | Dynamic temperature measuring mechanism and photovoltaic panel cleaning device having same |
| CN107276533A (en) * | 2017-08-08 | 2017-10-20 | 国网江苏省电力公司检修分公司 | The voltage and current detection means of roof photovoltaic panel |
| CN107329430A (en) * | 2017-07-20 | 2017-11-07 | 苏州艾特博斯智能设备有限公司 | A kind of long-range monitoring optimizing devices and methods therefor of photovoltaic module |
| CN108199747A (en) * | 2018-01-04 | 2018-06-22 | 哈尔滨理工大学 | A kind of direct current photovoltaic power carrier wave communication device |
-
2013
- 2013-07-23 CN CN201320440993.5U patent/CN203365538U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104300901A (en) * | 2014-09-11 | 2015-01-21 | 国家电网公司 | Photovoltaic power generation monitoring device based on Internet of Things technology |
| CN104601109A (en) * | 2014-12-25 | 2015-05-06 | 重庆大学 | Photovoltaic hot spot effect detection method for electricity-graph model |
| CN105841829A (en) * | 2016-05-13 | 2016-08-10 | 北京中电博顺智能设备技术有限公司 | Dynamic temperature measuring mechanism and photovoltaic panel cleaning device having same |
| CN105841829B (en) * | 2016-05-13 | 2018-08-17 | 北京中电博顺智能设备技术有限公司 | A kind of photovoltaic panel cleaning equipment |
| CN107329430A (en) * | 2017-07-20 | 2017-11-07 | 苏州艾特博斯智能设备有限公司 | A kind of long-range monitoring optimizing devices and methods therefor of photovoltaic module |
| CN107276533A (en) * | 2017-08-08 | 2017-10-20 | 国网江苏省电力公司检修分公司 | The voltage and current detection means of roof photovoltaic panel |
| CN107276533B (en) * | 2017-08-08 | 2023-12-22 | 国网江苏省电力有限公司检修分公司 | Device for detecting voltage and current of roof photovoltaic panel |
| CN108199747A (en) * | 2018-01-04 | 2018-06-22 | 哈尔滨理工大学 | A kind of direct current photovoltaic power carrier wave communication device |
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