CN209088893U - Photovoltaic plant efficiency parameters detection system - Google Patents
Photovoltaic plant efficiency parameters detection system Download PDFInfo
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- CN209088893U CN209088893U CN201820978510.XU CN201820978510U CN209088893U CN 209088893 U CN209088893 U CN 209088893U CN 201820978510 U CN201820978510 U CN 201820978510U CN 209088893 U CN209088893 U CN 209088893U
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- 238000001514 detection method Methods 0.000 title claims abstract description 23
- 238000004891 communication Methods 0.000 claims abstract description 15
- 230000003287 optical effect Effects 0.000 claims abstract description 12
- 238000002955 isolation Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 230000009467 reduction Effects 0.000 claims description 2
- 238000005286 illumination Methods 0.000 abstract description 5
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 230000005611 electricity Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005183 dynamical system Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 230000005405 multipole Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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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- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
A kind of photovoltaic plant efficiency parameters detection system, including master controller, Hall voltage sensor, Hall current sensor, optical sensor, threephase potential transformer, threephase current transformer, Power Management Unit, wireless communication unit, display, master controller outlet is separately connected Power Management Unit, optical sensor, wireless communication unit, display, master controller entrance is separately connected Hall voltage sensor, Hall current sensor, threephase potential transformer, threephase current transformer, the utility model can be acquired with real-time perfoming intensity of illumination, realize that solar energy generates the real time monitoring of the efficiency of direct current by solar panels, this is that previous detection device is not accomplished.When not having external power supply electric power storage tank discharge supply measuring device can use this utility model, and the low-power consumption by detection device can run a period of time, it is ensured that system running state can be controlled in real time.
Description
Technical field
The utility model is mainly used for photovoltaic plant Efficiency testing, and uploads data in time, is used for the extensive sun in field
Energy power station, can carry out real-time monitoring.
Background technique
Solar energy is inexhaustible as clean energy resource；Pollution-free, environmental benefit is high；Have a wide range of application；Change
Energy resource structure alleviates the crisis of earth mineral.Either roof power station, large-sized solar power station, or in human lives, answer
With all will be very universal, the dynamical system being related to can all combine with solar energy.
Currently, the country be not also to the detection of photovoltaic plant efficiency it is very perfect, there are data are inaccurate, acquire a difficult equal system
Column problem, if all detected one time to large-scale each piece of solar panels of photo-voltaic power generation station, each piece requires to detect on the spot, consumption
When effort and working efficiency it is not high.In addition, solar panels generating efficiency influences generated energy, so being adopted in real time to data
Collection, calculating generating efficiency seems increasingly important.Worker can just will appreciate that each piece of sun against computer in office in this way
The working condition of energy plate, time saving and energy saving, save the cost.
Utility model content
The utility model can be realized complete mainly solving the technical problems that provide a kind of power quality acquisition monitoring device
The on-line monitoring system that the acquisition of automatic reactive compensation, harmonics restraint and power quality parameter calculates.
In order to solve the above technical problems, the utility model provides a kind of photovoltaic plant efficiency parameters detection system, feature
It is: including master controller, Hall voltage sensor, Hall current sensor, optical sensor, threephase potential transformer, three
Phase current mutual inductor, Power Management Unit, wireless communication unit, display, master controller outlet are separately connected power management list
Member, optical sensor, wireless communication unit, display, master controller entrance are separately connected Hall voltage sensor, Hall current
Sensor, threephase potential transformer, threephase current transformer, Hall voltage sensor are connected with master controller, straight for measuring
Stream, exchange and pulse voltage, primary side measured voltage and secondary side output voltage electrical isolation, output signal really reflect primary side electricity
Corrugating；Hall current sensor is connected with master controller, and for measuring direct current, exchange and pulse current, primary side is tested electric current
It is isolated with secondary side output current electrical, output signal really reflects primary current waveform；Optical sensor connects master controller,
Master controller acquisition parameter, provides solar panels generating efficiency under the conditions of current light, and threephase potential transformer is defeated for acquiring
Outlet line voltage distribution, Real-time Feedback is to master controller, and threephase current transformer is for acquiring output end line current, Real-time Feedback
To master controller, wireless communication unit is connected with master controller, carries out wireless data transmission, and display is connected to master controller,
LCD is driven by serial communication.
The master controller is MSP430 chip, and minimum system circuit uses the MSP430F107 of TI company
8 8-digit microcontroller of low-power consumption.
The Hall voltage sensor uses the CHV-25P/1000V of gloomy society's space wave module.
The Hall current sensor uses the CHB-25NP/50A of gloomy society's space wave module.
The optical sensor uses the OPT101 of telesky.
The Power Management Unit uses the adjustable voltage reduction module of LM2596S DC-DC of sharp height electronics.
The threephase potential transformer uses the JSZK-10F of the molten electric appliance in west.
The threephase current transformer uses the LMZJ1-0.2 of Shanghai mutual inductance device factory.
The display uses the 12864COG-113.3/5V for drawing brilliant science and technology.
The wireless communication unit uses MSP430 chip, carries out wireless data biography by built-in WIFI ESP8266
It is defeated.
The utility model advantage is as follows:
One, the utility model can be acquired with real-time perfoming intensity of illumination, i.e. the acquisition of solar energy, therefore can be achieved with
Solar energy generates the real time monitoring of the efficiency of direct current, so as to obtain each period, each sun by solar panels
The Real time Efficiency of lighting angle solar panels.This moment optimal generating efficiency is calculated further according to the intensity of illumination of acquisition, is used
It is compared with real-time generating efficiency, judges the working condition that the block solar energy is done, timely adjustment of such as finding the problem, this be with
Do not accomplish toward detection device.Reference is provided for staff after operation data aggregates simultaneously, when generated energy is most, what
When efficiency highest, when work best to the service life of solar panels, reduce operating cost to the greatest extent.
Two, the detection device of solar power generation is all by external power supply now, and also having pole is partially that photovoltaic bus provides
Electric energy, when external power supply interrupt or intensity of illumination it is low, electric energy can not be provided when generating efficiency is low for detection device, cause device
It cannot work, therefore this utility model joined the power supply of battery group, become a part of detection device, solar panels hair
For electricity a part for grid-connected, a part is batteries to store energy when electrical efficiency is high, can be made when not having external power supply
Electric power storage tank discharge supplies measuring device and uses, and the low-power consumption by detection device can run a period of time, it is ensured that system operation
State can be controlled in real time.
Detailed description of the invention
Fig. 1 is the utility model structure structural schematic diagram；
Fig. 2 is Tthe utility model system operational flow diagram.
In Fig. 1,1.16 MSP430F247 microprocessors, 2. Hall voltage sensors, 3. Hall current sensors, 4. light
According to sensor, 5. Power Management Unit, 6. threephase potential transformers, 7. threephase current transformers, 8. displays, 9. wireless telecommunications
Unit.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
Referring to Fig.1, specific embodiment of the present invention includes 16 MSP430F247 master controllers, Hall voltage sensing
Device 2, Hall current sensor 3, solar irradiation sensor 4, Power Management Unit 5, threephase potential transformer 6, three-phase current are mutual
Sensor 7, display 8, wireless communication unit 9, the illumination that photovoltaic plant efficiency parameters detection device mainly completes detection environment are strong
The information such as the three-phase voltage current of degree, the DC voltage and current of solar panels outlet side and three-phase grid-connected inverter output are adopted
Collection carries out accurate amplification to small signal by high precision operating amplifier, then pass through 16 by the acquisition of the sensor
A/D chip carries out analog-digital conversion to it, and master controller will will receive the signal for acquiring later, and master controller will receive
The data arrived carry out calculation processing, packing, and store important information, while controlling display, wireless communication unit etc..
Hall current sensor is manufactured using Hall magnetic compensation principle, for measuring 0.05 ~ 2000A direct current, exchange and arteries and veins
Electric current is rushed, primary side is tested electric current and is isolated with secondary side output current electrical, and output signal really reflects primary current waveform and has
There is good linearity.Hall voltage sensor is manufactured using Hall magnetic compensation principle, for measuring 0.05 ~ 2000A direct current, exchange
And pulse voltage, primary side measured voltage and secondary side output voltage electrical isolation, output signal really reflect original edge voltage waveform,
And there is good linearity.For optical sensor for measuring intensity of sunshine, which exports the analog voltage letter of 0~20mV
Number, the analog signal of 0~2.5V is modulated to after multipole is amplified.It is transmitted to master controller, calculates current shape by calculating analysis
The best generating efficiency that solar energy is done under state.Wireless communication unit is using ESP8266 included inside master controller, for that will connect
The information received is transmitted to remote monitoring center and refers to for technical staff, so as to timely correction of finding the problem.
The result of the various electrical parameters and master controller analytical calculation that come in system acquisition is shown in one piece by display
On liquid crystal display, so that working state of system is understood more intuitively.
The parameter that the utility model can mainly measure has: the DC current and voltage of photovoltaic DC bus bar side pass through this
Two parameters can calculate the input power of inverter direct current input side by main control chip.It is able to detect inversion simultaneously
The virtual value and waveform of the three-phase voltage current of device three phase sine deferent segment can generate many by the calculating of main control chip
Electrical parameter, such as voltage flicker, current glitches, each harmonic content.
Power-supply management system is made of battery, solar panels and solar charging/discharging circuit, for for various weather and
Electric information sensor main control unit and wireless communication unit provide stable+5V ,+15V and -15V power supply.Daytime solar panels
The electricity of generation, a part of grid-connected, sub-fraction is stored in battery, for whole system night use.Since system is without it
His power supply is available to be acquired from solar panels bus rod, but the high pressure of nearly 1200V and be direct current above bus.
So we used a kind of high-frequency DC-DC DC isolation moulds for being based on high pressure IGBT (insulated gate bipolar field effect transistor)
Plate (5).High-voltage electricity above bus is subjected to high-frequency inversion by IGBT, passes through high frequency transformer after inversion, by its transformation
At the lower direct current of voltage, switch to -15 from+5V converting negative pressure for forward voltage by DC-DC ZUCK chopper circuit,
In order to guarantee more good reliability, so the Switching Power Supply input of three-phase electricity side is added in we, just powered off in photovoltaic DC side
When can maintain power supply.
Wireless telecommunication system, ESP8266 core have the SPi caching of 16M can be with other controllers, biography by SPi bus
Sensor is connected.There are two UART duplex serial ports for he, can connect 485 controllers, can be communicated with various 485 devices.
And it can be communicated with host computer.He has I2C and I2S serial line interface all the way, can receive and dispatch IIC IIS simultaneously and serially believe
Number.He also has ADC all the way that can monitor external battery voltage simultaneously.Meanwhile he has 8 GPIO interfaces, can be common io
It mouthful uses, he is that 3.3V can be with as the supply voltage of its operation clock master chip by 26Mhz quartz oscillator
By power management, power directly to it.
Referring to Fig. 2, system operational process, system starts, and component is initialized automatically, reception Hall voltage sensor,
Hall current sensor, optical sensor, threephase potential transformer, threephase current transformer acquire the electrical parameter to come up, send
To master controller, master controller calculates the generating efficiency of solar panels, then is transferred data to remotely by wireless telecommunication system
Control centre, such technical staff can detect the working condition of each piece of solar panels in office.
Claims (9)
1. a kind of photovoltaic plant efficiency parameters detection system, it is characterised in that: including master controller, Hall voltage sensor, suddenly
That current sensor, optical sensor, threephase potential transformer, threephase current transformer, Power Management Unit, wireless communication are single
Member, display, master controller outlet is separately connected Power Management Unit, optical sensor, wireless communication unit, display, main
Controller entrance is separately connected Hall voltage sensor, Hall current sensor, threephase potential transformer, three-phase current mutual inductance
Device, Hall voltage sensor are connected with master controller, for measuring direct current, exchange and pulse voltage, primary side measured voltage and pair
Side output voltage electrical isolation, output signal really reflect original edge voltage waveform；Hall current sensor and master controller phase
Even, for measuring direct current, exchange and pulse current, primary side is tested electric current and is isolated with secondary side output current electrical, and output signal is true
Real reflection primary current waveform；Optical sensor connects master controller, and master controller acquisition parameter provides current light condition
Lower solar panels generating efficiency, threephase potential transformer is for acquiring output end line voltage distribution, and Real-time Feedback is to master controller, and three
Phase current mutual inductor is for acquiring output end line current, and Real-time Feedback is to master controller, wireless communication unit and master controller
It is connected, carries out wireless data transmission, display is connected to master controller, drives LCD by serial communication.
2. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the master controller is
8 8-digit microcontroller of MSP430F107 low-power consumption of TI company.
3. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the Hall voltage passes
Sensor uses the CHV-25P/1000V of gloomy society's space wave module.
4. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the Hall current passes
Sensor uses the CHB-25NP/50A of gloomy society's space wave module.
5. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the optical sensor
Use the OPT101 of telesky.
6. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the power management list
Member uses the adjustable voltage reduction module of the LM2596SDC-DC of sharp height electronics.
7. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the three-phase voltage is mutual
Sensor uses the JSZK-10F of the molten electric appliance in west.
8. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the three-phase current is mutual
Sensor uses the LMZJ1-0.2 of Shanghai mutual inductance device factory.
9. photovoltaic plant efficiency parameters detection system according to claim 1, it is characterised in that: the display uses
Be the 12864COG-113.3/5V for drawing brilliant science and technology.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820978510.XU CN209088893U (en) | 2018-06-25 | 2018-06-25 | Photovoltaic plant efficiency parameters detection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551327A (en) * | 2018-06-25 | 2018-09-18 | 长春工程学院 | Photovoltaic plant efficiency parameters detecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108551327A (en) * | 2018-06-25 | 2018-09-18 | 长春工程学院 | Photovoltaic plant efficiency parameters detecting system |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240108 Address after: Room 1703, Unit 2, Building 6, Datang Dongfang Shengshi, Economic Development Zone, Changchun City, Jilin Province, 130022 Patentee after: Jilin Jingcheng Boyuan Electric Power Technology Co.,Ltd. Address before: Chaoyang District City, Jilin province Changchun wide road 130012 No. 395 Patentee before: CHANGCHUN INSTITUTE OF TECHNOLOGY |
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| TR01 | Transfer of patent right |