CN106020329A - Photovoltaic power optimizer and system based on LORA wireless communication - Google Patents
Photovoltaic power optimizer and system based on LORA wireless communication Download PDFInfo
- Publication number
- CN106020329A CN106020329A CN201610603080.9A CN201610603080A CN106020329A CN 106020329 A CN106020329 A CN 106020329A CN 201610603080 A CN201610603080 A CN 201610603080A CN 106020329 A CN106020329 A CN 106020329A
- Authority
- CN
- China
- Prior art keywords
- lora
- photovoltaic power
- photovoltaic
- cpu chip
- sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 title claims abstract description 83
- 238000004891 communication Methods 0.000 title claims abstract description 47
- 230000005540 biological transmission Effects 0.000 claims abstract description 24
- 238000006243 chemical reaction Methods 0.000 claims description 12
- 238000005457 optimization Methods 0.000 claims description 10
- 238000005259 measurement Methods 0.000 claims description 4
- 230000008054 signal transmission Effects 0.000 claims description 2
- 238000001228 spectrum Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 239000003637 basic solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/66—Regulating electric power
- G05F1/67—Regulating electric power to the maximum power available from a generator, e.g. from solar cell
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention relates to a photovoltaic power optimizer and system based on LORA wireless communication. The system comprises multiple photovoltaic power optimizers, an LORA gateway and an LORA server, wherein each photovoltaic power optimizer is provided with an LORA wireless communication module, point-to-point communication is achieved between each photovoltaic power optimizer and the LORA gateway through an LORA network, and each photovoltaic power optimizer is used for receiving instructions from the server, acquiring local data and sending the data to the LORA gateway according to an LORA protocol; the LORA gateway and the LORA server are connected through Ethernet, and data transmission between each photovoltaic power optimizer and the LORA server is achieved through the LORA gateway. Communication is achieved by means of the LORA wireless communication modules with high anti-interference performance and spread spectrum communication function, the problem of communication of photovoltaic power optimizers in the photovoltaic production area can be solved, data transmission reliability and long-distance transmission capacity are improved, and power consumption is reduced.
Description
Technical field
The present invention relates to photovoltaic monitoring field, particularly relate to a kind of photovoltaic power based on LORA radio communication excellent
Change device and system.
Background technology
Photovoltaic power optimizer can optimize the output of every piece of photovoltaic module, for each photovoltaic module
Independently execute maximum power point tracking (MPPT), be the key equipment in photovoltaic generation optimization system.It
There is ceiling capacity and gather translation function, data acquisition function and communication function, be suitable in different scales
Grid-connected photovoltaic power generation system is applied.
The data acquisition of current photovoltaic power optimizer typically uses RS485 communication or fieldbus transmission side
Formula.The shortcoming using RS485 to communicate is: owing to photovoltaic DC-to-AC converter electromagnetic interference is extremely strong, and often communication can not
Lean on.And use fieldbus transmission means transmission range limited, cause in-convenience in use.
In view of the foregoing, in the urgent need to developing a kind of Long-range Data Transmission light solving the problems referred to above
Volt power optimization device and system.
Summary of the invention
Present invention aim at solving photovoltaic and produce the communication issue of region photovoltaic power optimizer, propose one
Planting photovoltaic power optimizer based on LORA radio communication and system, this photovoltaic power optimizer uses has height
The LORA wireless communication module of interference free performance and broadband communication function communicates, and can improve data transmission
Reliability and long-distance transmissions ability, reduce power consumption.
In first aspect, the invention provides a kind of photovoltaic power optimizer based on LORA radio communication.
This photovoltaic power optimizer includes cpu chip and connected opens into optocoupler, display and button, institute
State photovoltaic power optimizer and also include DC-DC modular converter, LORA wireless communication module and lower sensor
In one or more:
Current sensor, voltage sensor and Temperature Humidity Sensor,
Described current sensor, voltage sensor are connected with cpu chip respectively with Temperature Humidity Sensor, use
Electric current, voltage and ambient temperature and humidity signal transmission extremely described CPU in the photovoltaic module that will measure respectively
Chip；
Described cpu chip, opens into optocoupler, button, DC-DC modular converter and sensor for reading
Data message, and shown by display, externally transmitted by LORA wireless communication module, and according to
The data genaration pulse-width signal read；
Described DC-DC modular converter is connected with described cpu chip, for following the tracks of the MPP of photovoltaic module,
And the output voltage/electric current of the pulse-width signal regulation photovoltaic module according to cpu chip generation, so that
System output power is maximum.
Further, described photovoltaic power optimizer also includes AD conversion module, its respectively with current sensor,
Voltage sensor is connected with cpu chip with Temperature Humidity Sensor, for the simulation number arrived by sensor measurement
It is re-fed into described cpu chip according to being converted into numerical data.
Further, integrated AD conversion module in described cpu chip, itself and current sensor, voltage sensor
Device and Temperature Humidity Sensor are respectively connected with, for by sensor measurement to analog data be converted into numeral number
According to.
Further, described photovoltaic power optimizer also includes power supply, and it is connected with described cpu chip, uses
In powering to cpu chip.
Further, described photovoltaic power optimizer also includes memorizer, and it is connected with described cpu chip,
For storing photovoltaic data.
Second aspect, the invention provides the data of a kind of photovoltaic power optimizer based on LORA radio communication
Transmission system.This system includes multiple photovoltaic power optimizer as described above, LORA gateway and LORA clothes
Business device,
The plurality of photovoltaic power optimizer is point-to-point by LORA real-time performance with described LORA gateway respectively
Communication, for receiving the order of LORA server and gathering native data according to LORA agreement by data transmission
To LORA gateway；
Described LORA gateway is connected with described LORA server via Ethernet, is used for realizing the plurality of light
Data transmission between volt power optimization device and described LORA server.
Further, described system also includes multiple photovoltaic module, and the corresponding power of each photovoltaic module is excellent
Changing device, each power optimization device is located at the back side of the photovoltaic module of its correspondence.
The photovoltaic power optimizer based on LORA radio communication of present invention proposition and system, reached is useful
Effect is as follows:
1, LORA wireless communication module is used to carry out data transmission, long transmission distance, sighting distance can reach 10km,
Produce region at photovoltaic and ensure that efficient communication.
2, use LORA wireless communication module to carry out data transmission, cable laying cost can be saved.
3, LORA gateway realizes point-to-point communication by LORA wireless network and power optimization device, can be effectively same
Step, it is ensured that data validity.
4, photovoltaic power optimizer is set at each photovoltaic module back side, by photovoltaic power optimizer to each
Photovoltaic module carries out stand alone type MPPT regulation, can realize the maximum power output of photovoltaic module.
Accompanying drawing explanation
Fig. 1 is the structural representation of the photovoltaic power optimizer based on LORA radio communication of the present invention；
Fig. 2 is the data transmission system of the photovoltaic power optimizer based on LORA radio communication of the present invention
Structured flowchart.
Description of reference numerals:
1-current sensor, 2-voltage sensor, 3-Temperature Humidity Sensor, 4-AD modular converter, 5-CPU
Chip, 6-opens into optocoupler, 7-DC-DC modular converter, 8-display, 9-button, 10-power supply, 11-
Memorizer, 12-LORA wireless communication module, 21-photovoltaic power optimizer, 22-photovoltaic module, 23-LORA
Gateway, 24-LORA server.
Detailed description of the invention
For the technical scheme making those skilled in the art be better understood from the embodiment of the present invention, and make
The above-mentioned purpose of the embodiment of the present invention, feature and advantage can become apparent from understandable, below by accompanying drawing and
Embodiment, is described in further detail technical scheme.Based on the embodiment in the present invention,
All other that those of ordinary skill in the art are obtained under not making creative work premise is implemented
Example, broadly falls into the scope of protection of the invention.
Fig. 1 is the structural representation of the photovoltaic power optimizer based on LORA radio communication of the present invention.
As it is shown in figure 1, the photovoltaic power optimizer in the present embodiment includes that current sensor 1, voltage pass
Sensor 2, Temperature Humidity Sensor 3, AD conversion module 4, cpu chip 5, open into optocoupler 6, DC-DC
Modular converter 7, display 8, button 9, power supply 10, memorizer 11, LORA wireless communication module 12.
Current sensor 1, voltage sensor 2, Temperature Humidity Sensor 3 respectively with AD conversion module 4 phase
Even, it is responsible for being converted to be suitable for AD conversion module by electric current, voltage and the ambient temperature and humidity signal of photovoltaic module
The 4 weak voltage signals read.
AD conversion module 4 is connected with cpu chip 5, is responsible for light current pressure AD conversion module 4 read
Signal sends to cpu chip 5 after carrying out analog digital conversion.Should be appreciated that the AD conversion mould in the present embodiment
Block 4 can also be integrated in cpu chip 5.
Open into optocoupler 6, DC-DC modular converter 7, display 8, button 9, memorizer 11 and LORA
Wireless communication module is connected with cpu chip 5 respectively, cpu chip 5 responsible reading AD conversion module 4,
Open into optocoupler 6, DC-DC modular converter 7 and the data message of button 9, and shown by display 8,
Store data by memorizer 11 and externally transmitted by LORA wireless communication module 12.CPU core simultaneously
Sheet 5 is according to the moderate pulse-width signal (pwm signal) of data genaration dutycycle read, and by pulsewidth
Modulated signal sends to DC-DC modular converter 7.
The responsible MPP (maximum power point) following the tracks of photovoltaic module of DC-DC modular converter 7, and according to
The output voltage/electric current of the pulse-width signal regulation photovoltaic module that cpu chip generates, so that because of photovoltaic group
The output discordance that the difference of part is caused obtains basic solution, it is ensured that system output power is
Greatly.
Power supply 10 is connected with cpu chip 5, is mainly used to power to cpu chip 5.
Fig. 2 is the data transmission system of the photovoltaic power optimizer based on LORA radio communication of the present invention
Structured flowchart.
As in figure 2 it is shown, the data transmission of the photovoltaic power optimizer based on LORA radio communication of the present invention
System includes multiple photovoltaic power optimizers 21 described above, photovoltaic module 22, LORA gateway 23 and LORA
Server 24.
The corresponding power optimization device 21 of each photovoltaic module 22, it is right that each power optimization device 21 is located at it
The back side of the photovoltaic module 22 answered.
Each photovoltaic power optimizer 21 realizes point-to-point logical respectively by LORA network and LORA gateway 23
Letter, is responsible for receiving the order of LORA server 24 and gathering native data data being sent according to LORA agreement
To LORA gateway 23, and realize the maximum power output of photovoltaic module.
LORA gateway 23 is connected by Ethernet with LORA server 24, is responsible for realizing each photovoltaic power excellent
Change the data transmission between device 21 and LORA server 24.
During work, LORA server 24 timing passes through LORA gateway 23 to photovoltaic power optimizer 21
Send calling order, convene the data of photovoltaic power optimizer 21.Photovoltaic power optimizer 21 receives LORA
After the calling order of server 24, synchronous acquisition native data sends data to according to LORA agreement
LORA gateway 23, is sent to LORA server 24 by LORA gateway 23.
As it has been described above, according to the present invention, owing to LORA technology is as a kind of wireless technology, based on Sub-GHz
Frequency range make it be more easy to lower power consumption telecommunication, it is possible to use battery power or other energy receive
The mode of collection is powered.Relatively low data rate also extends battery life and adds the capacity of network, separately
Outer LORA signal is the strongest to the penetration power of building.Therefore the present invention has long transmission distance, cable laying
The advantages such as low cost, data transmission efficiency are high, equipment power dissipation is low.
Above-described detailed description of the invention, is carried out the purpose of the present invention, technical scheme and beneficial effect
Further describe, be it should be understood that the foregoing is only the present invention detailed description of the invention and
, the protection domain being not intended to limit the present invention, all within the spirit and principles in the present invention, done
Any modification, equivalent substitution and improvement etc., should be included within the scope of the present invention.
Claims (7)
1. a photovoltaic power optimizer based on LORA radio communication, including cpu chip and connected
Open into optocoupler, display and button, it is characterised in that also include DC-DC modular converter, LORA without
One or more in line communication module and lower sensor:
Current sensor, voltage sensor and Temperature Humidity Sensor,
Described current sensor, voltage sensor are connected with cpu chip respectively with Temperature Humidity Sensor, use
Electric current, voltage and ambient temperature and humidity signal transmission extremely described CPU in the photovoltaic module that will measure respectively
Chip；
Described cpu chip, opens into optocoupler, button, DC-DC modular converter and each sensor for reading
Data message, and shown by display, externally transmitted by LORA wireless communication module, Yi Jigen
According to the data genaration pulse-width signal read；
Described DC-DC modular converter is connected with described cpu chip, for following the tracks of the MPP of photovoltaic module,
And the output voltage/electric current of the pulse-width signal regulation photovoltaic module according to cpu chip generation, so that
System output power is maximum.
Photovoltaic power optimizer based on LORA radio communication the most according to claim 1, its feature
Be, also include AD conversion module, its respectively with current sensor, voltage sensor and temperature and humidity sensing
Device is connected with cpu chip, for by sensor measurement to analog data be converted into numerical data and be re-fed into
Described cpu chip.
Photovoltaic power optimizer based on LORA radio communication the most according to claim 1, its feature
Be, in described cpu chip, be integrated with AD conversion module, its respectively with current sensor, voltage sensor
Device is connected with Temperature Humidity Sensor, for by sensor measurement to analog data be converted into numerical data.
Photovoltaic power optimizer based on LORA radio communication the most according to claim 1, its feature
Being, also including power supply, it is connected with described cpu chip, for powering to cpu chip.
Photovoltaic power optimizer based on LORA radio communication the most according to claim 1, its feature
Being, also including memorizer, it is connected with described cpu chip, is used for storing photovoltaic data.
6. a data transmission system for photovoltaic power optimizer based on LORA radio communication, its feature exists
In, including multiple photovoltaic power optimizers, LORA gateway and LORA server, the plurality of photovoltaic power is excellent
Change device and be claim 1 to 5 one of arbitrarily described photovoltaic power optimizer,
The plurality of photovoltaic power optimizer is point-to-point by LORA real-time performance with described LORA gateway respectively
Communication, for receiving the order of LORA server and gathering native data according to LORA agreement by data transmission
To LORA gateway；
Described LORA gateway is connected with described LORA server via Ethernet, is used for realizing the plurality of light
Data transmission between volt power optimization device and described LORA server.
The data of photovoltaic power optimizer based on LORA radio communication the most according to claim 6 pass
Communication system, it is characterised in that described system also includes multiple photovoltaic module, corresponding one of each photovoltaic module
Power optimization device, each power optimization device is located at the back side of the photovoltaic module of its correspondence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603080.9A CN106020329A (en) | 2016-07-27 | 2016-07-27 | Photovoltaic power optimizer and system based on LORA wireless communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610603080.9A CN106020329A (en) | 2016-07-27 | 2016-07-27 | Photovoltaic power optimizer and system based on LORA wireless communication |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106020329A true CN106020329A (en) | 2016-10-12 |
Family
ID=57114710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610603080.9A Pending CN106020329A (en) | 2016-07-27 | 2016-07-27 | Photovoltaic power optimizer and system based on LORA wireless communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106020329A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248268A (en) * | 2017-05-27 | 2017-10-13 | 南京泛和电力自动化有限公司 | A kind of communication means monitored for photovoltaic module and system |
| CN107393266A (en) * | 2017-06-13 | 2017-11-24 | 上海电力学院 | A kind of photovoltaic plant wireless remote data Transmission system |
| CN107425878A (en) * | 2017-05-27 | 2017-12-01 | 南京泛和电力自动化有限公司 | Wireless communications method and wireless terminal for photovoltaic generation monitoring |
| CN107682939A (en) * | 2017-03-20 | 2018-02-09 | 上海贝壳供应链管理有限公司 | A kind of communication means based on LORA from group agreement |
| CN108039774A (en) * | 2017-12-29 | 2018-05-15 | 成都素寺图科技有限公司 | A kind of photovoltaic power supply low-power consumption contact net and power supply unit monitor system and method |
| CN108347710A (en) * | 2017-12-29 | 2018-07-31 | 武汉长江仪器自动化研究所有限公司 | Grouting data distance transmission system based on LoRa and its transmission method |
| CN109256854A (en) * | 2017-07-12 | 2019-01-22 | 丰郅(上海)新能源科技有限公司 | The method being monitored to distributed photovoltaic plant is realized based on wireless communication |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140159763A1 (en) * | 2011-08-22 | 2014-06-12 | Altenergy Power System, Inc. | Solar photovoltaic system and a method for energy harvest optimization thereof and a method for fault detection thereof |
| CN104065336A (en) * | 2014-06-25 | 2014-09-24 | 浙江大学 | Photovoltaic optimizer with integration of data communication function |
| CN203883764U (en) * | 2014-04-30 | 2014-10-15 | 广西师范大学 | Photovoltaic generation array with solar power optimizers |
| US20150013744A1 (en) * | 2013-07-10 | 2015-01-15 | Lsis Co., Ltd. | Photovoltaic system |
| CN105022438A (en) * | 2014-04-15 | 2015-11-04 | 杜丽芳 | Photovoltaic assembly intelligent optimization device |
| CN204967282U (en) * | 2015-09-29 | 2016-01-13 | 湖南理工职业技术学院 | Distributed optimizing system that is incorporated into power networks that generates electricity based on smart power grids |
-
2016
- 2016-07-27 CN CN201610603080.9A patent/CN106020329A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140159763A1 (en) * | 2011-08-22 | 2014-06-12 | Altenergy Power System, Inc. | Solar photovoltaic system and a method for energy harvest optimization thereof and a method for fault detection thereof |
| US20150013744A1 (en) * | 2013-07-10 | 2015-01-15 | Lsis Co., Ltd. | Photovoltaic system |
| CN105022438A (en) * | 2014-04-15 | 2015-11-04 | 杜丽芳 | Photovoltaic assembly intelligent optimization device |
| CN203883764U (en) * | 2014-04-30 | 2014-10-15 | 广西师范大学 | Photovoltaic generation array with solar power optimizers |
| CN104065336A (en) * | 2014-06-25 | 2014-09-24 | 浙江大学 | Photovoltaic optimizer with integration of data communication function |
| CN204967282U (en) * | 2015-09-29 | 2016-01-13 | 湖南理工职业技术学院 | Distributed optimizing system that is incorporated into power networks that generates electricity based on smart power grids |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107682939A (en) * | 2017-03-20 | 2018-02-09 | 上海贝壳供应链管理有限公司 | A kind of communication means based on LORA from group agreement |
| CN107682939B (en) * | 2017-03-20 | 2021-06-15 | 上海贝壳供应链管理有限公司 | Communication method based on LORA ad hoc protocol |
| CN107248268A (en) * | 2017-05-27 | 2017-10-13 | 南京泛和电力自动化有限公司 | A kind of communication means monitored for photovoltaic module and system |
| CN107425878A (en) * | 2017-05-27 | 2017-12-01 | 南京泛和电力自动化有限公司 | Wireless communications method and wireless terminal for photovoltaic generation monitoring |
| CN107425878B (en) * | 2017-05-27 | 2020-02-18 | 夏德华 | Wireless communication method and wireless terminal for photovoltaic power generation monitoring |
| CN107393266A (en) * | 2017-06-13 | 2017-11-24 | 上海电力学院 | A kind of photovoltaic plant wireless remote data Transmission system |
| CN109256854A (en) * | 2017-07-12 | 2019-01-22 | 丰郅(上海)新能源科技有限公司 | The method being monitored to distributed photovoltaic plant is realized based on wireless communication |
| CN108039774A (en) * | 2017-12-29 | 2018-05-15 | 成都素寺图科技有限公司 | A kind of photovoltaic power supply low-power consumption contact net and power supply unit monitor system and method |
| CN108347710A (en) * | 2017-12-29 | 2018-07-31 | 武汉长江仪器自动化研究所有限公司 | Grouting data distance transmission system based on LoRa and its transmission method |
| CN108039774B (en) * | 2017-12-29 | 2023-08-29 | 成都素寺图科技有限公司 | Photovoltaic power supply low-power consumption contact net and power supply equipment monitoring system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106020329A (en) | Photovoltaic power optimizer and system based on LORA wireless communication | |
| CN201716844U (en) | Remote electric power metering system | |
| CN202330487U (en) | Intelligent ammeter applied to solar distributed grid-connected system | |
| CN102780267B (en) | Electric energy router | |
| CN204190699U (en) | A kind of supervisory control system based on Internet of Things solar components | |
| CN201830179U (en) | Photovoltaic array confluence box for solar photovoltaic generating system | |
| CN105070009A (en) | Public utility meter based data acquisition system and method | |
| CN101877166A (en) | Method for monitoring operating state data of solar battery package board | |
| CN203858746U (en) | Running data acquisition system based on mobile communication public network for photovoltaic power stations | |
| CN104935080A (en) | Intelligent monitoring system of photovoltaic power station | |
| CN203455707U (en) | Solar energy photovoltaic power station monitoring system | |
| CN104750077A (en) | Water quality monitoring system of offshore cage based on ZigBee and GPRS (General Packet Radio Service) technologies | |
| CN102571148A (en) | Power grid communication system based on medium-pressure power carrier technology | |
| CN102082464B (en) | Electric energy quality signal generating system for smart grid as well as comprehensive test method | |
| US10218183B2 (en) | Household photovoltaic system and smart micro-grid system | |
| CN202795723U (en) | System for remote wireless meter reading and monitoring with interconnection between Internet and ad hoc multi-hop network | |
| CN108770078A (en) | Photovoltaic plant multi-stage data monitors and composite information Transmission system | |
| KR101703727B1 (en) | Power output compensation system for maximum efficiency of photovoltaic power generation | |
| CN205862266U (en) | A kind of photovoltaic power optimizer based on LORA radio communication and system | |
| CN110224440A (en) | A kind of photovoltaic module generated output optimization system with wireless self-networking function | |
| CN109286244A (en) | Photovoltaic electrification component based on carrier communication monitors system | |
| CN206149266U (en) | Power line carrier communication system based on micro inverter | |
| CN202256491U (en) | Base station electric energy measuring device | |
| CN205721293U (en) | A kind of LED-based photovoltaic generation monitoring system | |
| CN102185526A (en) | Novel quasi-grid-connected wind-light-electricity complementary power station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |