CN104578158A - Multi-channel collection controller of micro inverter - Google Patents
Multi-channel collection controller of micro inverter Download PDFInfo
- Publication number
- CN104578158A CN104578158A CN201510002445.8A CN201510002445A CN104578158A CN 104578158 A CN104578158 A CN 104578158A CN 201510002445 A CN201510002445 A CN 201510002445A CN 104578158 A CN104578158 A CN 104578158A
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- CN
- China
- Prior art keywords
- module
- micro inverter
- photovoltaic system
- miniature inverter
- inverter
- 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
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- 238000004891 communication Methods 0.000 claims abstract description 18
- 238000005070 sampling Methods 0.000 claims 1
- 238000013480 data collection Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
Classifications
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
Abstract
The invention discloses a multi-channel collection controller of a micro inverter. The multi-channel collection controller of the micro inverter is composed of a 485 alternating-current and direct-current current and voltage collecting module, a double-channel serial port switch control module, a carrier concentrator module and a power supply module. The micro inverter is convenient to install, light in weight and small in size, and therefore a photovoltaic system adopting the micro inverter can be widely used. However, the power of the micro inverter is small, the number of the adopted micro inverters is large, as a result, arrangement of a data collecting and control system for the photovoltaic system is quite complicated, the quantity of data collecting hardware is greatly increased, and laying of communication lines is quite complicated. The multi-channel collection controller of the micro inverter solves the collection control problem caused by the photovoltaic system, improves the data collection frequency of the whole photovoltaic system, shortens the collection control time, reduces the number of laid communication lines and reduces communication cost.
Description
technical field:
The present invention relates to a kind of photovoltaic acquisition controller technical field, particularly a kind of multichannel collecting controller of Miniature inverter.
background technology:
Along with the implementation of Environment Protection Policy, clean energy resource obtains unprecedented application.In recent years, solar energy because it is ready availability, generality and spatter property welcome a brilliant period.Photovoltaic generation is safe and reliable, noiseless, non-pollution discharge, can be used in photovoltaic building easily integrated, have also been obtained unprecedented application.At present, domestic and international residents photovoltaic system application development is very fast, the group serial type inverter and the Miniature inverter occupation rate of market that are applicable to this photovoltaic system also increase thereupon, and particularly the Miniature inverter product yield of plug and play type also had very fast growth in recent years.But, because Miniature inverter power is little, when using this inverter design photovoltaic system, the inverter quantity often used is more, therefore, for this photovoltaic system is equipped with data collection and control system meeting relative complex, data acquisition hardware quantity is corresponding can significantly be increased, and communication line is laid also can be very numerous and diverse.For solving the problem that this photovoltaic system uses wire communication mode to bring, it is good method that radio communication and power line carrier communication are suggested.Wherein, power-line carrier communication cost effective more, is highly suitable for data monitoring and the intelligentized control method of Miniature inverter photovoltaic system.
summary of the invention:
The object of the invention is to for Miniature inverter photovoltaic system designs the product of a kind of data acquisition and intelligentized control method, provide a kind of efficiency high, adopt power-line carrier communication to carry out the multichannel collecting control technology of the Miniature inverter communicated.
The technical solution adopted for the present invention to solve the technical problems is: the multichannel collecting controller designing a kind of Miniature inverter, comprising: 485 ac and dc current voltage acquisition modules, binary channels serial ports switch control module, carrier wave concentrator module, supply module.Cell panel DC output end is connected with binary channels serial ports switch control module, 485 direct current voltage acquisition modules connect binary channels serial ports switch control module, Miniature inverter is exported to after gathering direct current power, be connected with 485 AC current-voltage acquisition modules after direct current power is reverse into AC power by Miniature inverter, be connected with binary channels serial ports switch control module after gathering AC power, then AC power gathers rear grid-connected.
The present invention is for 4 channel acquisition controllers: power module provides power supply to other all modules in acquisition controller product.Every 4 inverters of module are one group, and the collection of each multichannel collecting controller controls 4 Miniature inverters, gather its alternating current-direct current end electric current, magnitude of voltage respectively, and are disposablely sent to Surveillance center via power line carrier communication; Realize controlling the remote on/off of each inverter by power line carrier communication simultaneously.Each multichannel collecting controller comprises: 4 pairs of direct-flow input ends, connects the output DC terminal of four pieces of cell panels; 4 pairs of DC output ends, connect the DC terminal of Miniature inverter input; 4 pairs of ac input ends, connect Miniature inverter output AC end; 1 exchanges total output, AC power is gathered and be incorporated to 220V, 50Hz low pressure public electric wire net.
Compared with prior art, the invention has the beneficial effects as follows:
1. this kind of multichannel collecting controller, can gather and control multiple Miniature inverter, adopts power-line carrier communication to communicate, circuit is simplified.Multiple acquisition module is connected with host computer with control module by each carrier wave concentrator simultaneously, reaches and monitors simultaneously and control the object of multiple Miniature inverter, add the data acquiring frequency of whole photovoltaic system.
2. power line carrier, PLC line utilizes existing power line as data transmission medium, decreases the laying of communication line, reduces communications cost.
accompanying drawing illustrates:
Fig. 1 is the photovoltaic system structural representation using product of the present invention, comprises solar panel (1), multichannel collecting controller (2), Miniature inverter (3), Surveillance center (4), carrier communication transparent transmission module (5), 220V, 50Hz low pressure public electric wire net (6).
Fig. 2 is interiors of products structural representation of the present invention, comprises the multichannel collecting controller (2) of four-way, because power module line is complicated, so line does not draw.
embodiment:
Employ a photovoltaic system for Miniature inverter and multichannel collecting controller, its structural representation and using method are as shown in Figure 1.
Operation principle:
As shown in Figure 2, the multichannel collecting controller for 4 passages: 4 acquisition modules gather DC input power and the output AC power of Miniature inverter, and send the data to carrier wave concentrator by 485 buses.The up-to-date collection value of each acquisition module is inquired about in carrier wave concentrator timing, and is stored in internal register.After Surveillance center sends querying command by power line carrier communication, carrier wave concentrator replies to Surveillance center the last state of the collection stored in register and control appliance.Surveillance center records and shows collection value, carries out Miniature inverter state-detection simultaneously and carries out the transmission of control command.When carrier wave concentrator receives the control command of Surveillance center's transmission, control command will be forwarded to binary channels serial ports switch control module in 485 buses.After binary channels serial ports switch control module receives control command, make-break operation is carried out to relay, thus realize the make-break operation of cell panel and Miniature inverter.
Claims (3)
1. a multichannel collecting controller for Miniature inverter, is characterized in that: it is made up of 485 ac and dc current voltage acquisition modules, binary channels serial ports switch control module, carrier wave concentrator module, supply module.
2. the multichannel collecting controller of a kind of Miniature inverter according to claim 1, is characterized in that: described sampling module comprises Miniature inverter input direct-current power samples and Miniature inverter output AC power samples.
3. the multichannel collecting controller of a kind of Miniature inverter according to claim 1, is characterized in that: what described communication module adopted is power line carrier concentrator communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002445.8A CN104578158A (en) | 2015-01-05 | 2015-01-05 | Multi-channel collection controller of micro inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510002445.8A CN104578158A (en) | 2015-01-05 | 2015-01-05 | Multi-channel collection controller of micro inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104578158A true CN104578158A (en) | 2015-04-29 |
Family
ID=53093625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510002445.8A Pending CN104578158A (en) | 2015-01-05 | 2015-01-05 | Multi-channel collection controller of micro inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104578158A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383285A (en) * | 2016-11-25 | 2017-02-08 | 海南电力技术研究院 | Multichannel mini household inverter efficiency testing system and testing method |
| CN107492911A (en) * | 2017-10-20 | 2017-12-19 | 阳光电源股份有限公司 | One kind cascade inversion system |
| CN109039778A (en) * | 2018-09-13 | 2018-12-18 | 卡斯柯信号有限公司 | A kind of ac and dc current intelligent comprehensive collector |
-
2015
- 2015-01-05 CN CN201510002445.8A patent/CN104578158A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106383285A (en) * | 2016-11-25 | 2017-02-08 | 海南电力技术研究院 | Multichannel mini household inverter efficiency testing system and testing method |
| CN107492911A (en) * | 2017-10-20 | 2017-12-19 | 阳光电源股份有限公司 | One kind cascade inversion system |
| CN107492911B (en) * | 2017-10-20 | 2021-04-13 | 阳光电源股份有限公司 | Cascade inversion system |
| CN109039778A (en) * | 2018-09-13 | 2018-12-18 | 卡斯柯信号有限公司 | A kind of ac and dc current intelligent comprehensive collector |
| CN109039778B (en) * | 2018-09-13 | 2024-02-20 | 卡斯柯信号有限公司 | Intelligent comprehensive collector for alternating current and direct current |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |