CN208623623U - The photovoltaic DC-to-AC converter of integrated package grade communicating circuit - Google Patents
The photovoltaic DC-to-AC converter of integrated package grade communicating circuit Download PDFInfo
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- CN208623623U CN208623623U CN201821392080.XU CN201821392080U CN208623623U CN 208623623 U CN208623623 U CN 208623623U CN 201821392080 U CN201821392080 U CN 201821392080U CN 208623623 U CN208623623 U CN 208623623U
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- mlpe
- communication board
- photovoltaic
- converter
- inverter
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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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Abstract
The utility model provides a kind of photovoltaic DC-to-AC converter of integrated package grade communicating circuit, including MLPE communication board, inverter communication board, relay switch；The side of the input terminal DC interface connection DC switch of the photovoltaic DC-to-AC converter, the other side of DC switch is used to connect the positive and negative DC output end that series circuit is formed after each MLPE connects；The external side of the AC interface of the photovoltaic DC-to-AC converter connects power grid, the side of internal side connection relay switch, the feeder ear of the other side connection MLPE communication board of relay switch；MLPE communication board and inverter communication board carry out data communication；Each MLPE and MLPE communication board mutually communicates, and inverter communication board is mutually communicated with cloud monitor supervision platform.The utility model can be realized being combined into one for monitor supervision platform, save hardware, and installation and maintenance are more convenient.
Description
Technical field
The utility model relates to a kind of inverter, especially a kind of photovoltaic DC-to-AC converter of integrated package grade communicating circuit.
Background technique
Component level power device (is abbreviated as MLPE, Module Level Power Electronic), in photovoltaic power generation system
It is just more and more used in system；Photovoltaic module connects MLPE, and then MLPE reconnects inverter；MLPE is as needed, can
Be designed as having the function of it is different, such as realize control generating efficiency, photovoltaic module is promoted when photovoltaic module is blocked by shadow
Generating efficiency；For another example detect the data, including voltage, electric current, temperature etc. of photovoltaic module；For another example control the direct current of output
Pressure；
Problem 1, in general inverter and MLPE most cases are different manufacturers production, so with regard to that need to will appear two
Monitor supervision platform, one is that the monitor supervision platform of inverter mainly monitors data and the power grid end of entire photovoltaic array (or photovoltaic group string)
Data, the other is the monitor supervision platform of MLPE is mainly to monitor the data of each piece of photovoltaic module, so either from economy
Property, functional, all existing defects in the portability still used.
Problem 2, due to the separation of above-mentioned two platform data, macro-data and local data can not be integrated, for system
The failure of appearance effectively can not be positioned and be alarmed, and be needed for operation maintenance personnel through two sets of data come manual identified
Fault point, the difficulty and cost of this O&M being increased by；
Problem 3, the communication part of MLPE product be all at present it is external, installation needs to arrange in pairs or groups some distribution boxs, breaker
And cable.It will increase additional hardware cost, and bring the inconvenience in installation and debugging.
Summary of the invention
For the deficiencies in the prior art, the photovoltaic that the utility model provides a kind of integrated package grade communicating circuit is inverse
Become device, can be realized being combined into one for monitor supervision platform, save hardware, installation and maintenance are more convenient.The skill that the utility model uses
Art scheme is:
A kind of photovoltaic DC-to-AC converter of integrated package grade communicating circuit, including MLPE communication board, inverter communication board, after establishing by cable
It closes；
The side of the input terminal DC interface connection DC switch of the photovoltaic DC-to-AC converter, the other side of DC switch are each for connecting
The positive and negative DC output end of series circuit is formed after MLPE series connection；
The external side of the AC interface of the photovoltaic DC-to-AC converter connects power grid, and internal side connects the side of relay switch, after
The feeder ear of the other side connection MLPE communication board of electric switch；
MLPE communication board and inverter communication board carry out data communication；
Each MLPE and MLPE communication board mutually communicates, and inverter communication board is mutually communicated with cloud monitor supervision platform.
Further, MLPE communication board is connect with inverter communication board by RS485 or Ethernet interface.
Further, MLPE and MLPE communication board pass through WiFi wireless telecommunications.
Further, inverter communication board and cloud monitor supervision platform pass through WiFi wireless telecommunications.
Further, the relay switch is to power off switch open in usual；
Utility model has the advantages that
1) being combined into one for monitor supervision platform is realized.
2) intelligent O&M is realized；Existing O&M is all based on greatly the data that inverter provides and is safeguarded, and general group
The data resolution of string inverter is that photovoltaic group tandem is other, more extensive；The utility model is combined into one in monitor supervision platform
On the basis of, the resolution ratio of monitoring data can be increased to photovoltaic module rank.
3) control integration；The key shutdown control function of MLPE can be integrated on inverter, reach phase in the prior art
Same control effect, also eliminates AC circuit breaker.
4) hardware cost is reduced, installation is also more convenient.Save the shell of MLPE communication box from hardware, connector, cable,
And external AC circuit breaker.
Detailed description of the invention
Fig. 1 is existing photovoltaic generating system topological diagram.
Fig. 2 is existing photovoltaic generating system connection schematic diagram.
Fig. 3 is the photovoltaic generating system topological diagram of the utility model.
Fig. 4 is the photovoltaic generating system connection schematic diagram of the utility model.
Specific embodiment
Below with reference to specific drawings and examples, the utility model is described in further detail.
The existing photovoltaic generating system for being equipped with MLPE, as shown in Figure 1 and Figure 2；
Each photovoltaic module (the PV component i.e. in figure) is separately connected a MLPE, forms series circuit after each MLPE series connection
Positive and negative DC output end switchs the DC interface of connection inverter by DC；
Inverter communication board is wirelessly connected the monitor supervision platform of inverter by WiFi, can be cloud monitor supervision platform；
MLPE is wirelessly connected MLPE communication box by WiFi, and MLPE communication box is wirelessly connected the monitoring of MLPE by WiFi
Platform can be cloud monitor supervision platform；
The AC interface of inverter picks out AC power cord L, N, connects power grid；The feeder ear of MLPE communication box passes through a friendship
AC power cord L, N that stream breaker connection inverter AC interface picks out；
One key shutdown control function is achieved in the following ways: disconnecting AC circuit breaker, MLPE communication box manually
Power failure, after the communicating interrupt of MLPE and MLPE communication box, MLPE can reduce output DC voltage automatically, inverter by
It stops working in input voltage is too low.
It sets there are two monitor supervision platform, and the monitor supervision platform of inverter mainly monitors the data of photovoltaic group string, such as power curve
Deng, and the monitor supervision platform of MLPE mainly monitors the data of each photovoltaic module, the data between two monitor supervision platforms need to distinguish
It checks, safeguards, increase the difficulty and cost of O&M.
The utility model provides a kind of photovoltaic DC-to-AC converter of integrated package grade communicating circuit, as shown in Figure 3, Figure 4, including
MLPE communication board, inverter communication board, relay switch；
The side of the input terminal DC interface connection DC switch of the photovoltaic DC-to-AC converter, the other side of DC switch are each for connecting
The positive and negative DC output end of series circuit is formed after MLPE series connection；
The external side of the AC interface of the photovoltaic DC-to-AC converter connects power grid, and internal side connects the side of relay switch, after
The feeder ear of the other side connection MLPE communication board of electric switch；The relay switch is to power off switch open in usual；
MLPE communication board and inverter communication board carry out data communication, and the two can be connected by RS485 or Ethernet interface；
By WiFi wireless communication, inverter communication board passes through with cloud monitor supervision platform by MLPE communication board and each MLPE
WiFi wireless communication is integrated with monitoring and the control function of monitoring inverter platform and MLPE monitor supervision platform on cloud monitor supervision platform
Energy；
When needing to realize a key turn-off function, it is only necessary to switch the DC of inverter input terminal and disconnect, at this time inverter
Relay switch just as power loss disconnects automatically, MLPE communication board power loss, the communicating interrupt of MLPE communication board and MLPE, MLPE meeting
It is automatic to reduce output voltage；Also the control effect to MLPE originally has just been reached.The original DC switch of inverter is utilized, so that it may
To control the movement of MLPE, AC circuit breaker is also eliminated, realizes the integration of control function.
The conversion of data format may be implemented in MLPE communication board, and the monitoring data that MLPE is uploaded can be communicated by MLPE
It after plate format transformation, then by inverter communication board, is sent on the cloud monitor supervision platform of a concentration, the cloud prison after integrating in this way
Control platform can see the data of each photovoltaic module and group string.
In the present embodiment, by WiFi communication, inverter communication board passes through with cloud monitor supervision platform for MLPE and MLPE communication board
The communication modes such as data line or power carrier also can be used in other embodiments in WiFi communication.
It should be noted last that the above specific embodiment is only to illustrate the technical solution of the utility model rather than limits
System, although the utility model is described in detail referring to example, those skilled in the art should understand that, it can be right
The technical solution of the utility model is modified or replaced equivalently, without departing from the spirit and model of technical solutions of the utility model
It encloses, should all cover in the scope of the claims of the utility model.
Claims (5)
1. a kind of photovoltaic DC-to-AC converter of integrated package grade communicating circuit, which is characterized in that communicated including MLPE communication board, inverter
Plate, relay switch；
The side of the input terminal DC interface connection DC switch of the photovoltaic DC-to-AC converter, the other side of DC switch is for connecting each MLPE
The positive and negative DC output end of series circuit is formed after series connection；
The external side of the AC interface of the photovoltaic DC-to-AC converter connects power grid, the side of internal side connection relay switch, after establishing by cable
The feeder ear of the other side connection MLPE communication board of pass；
MLPE communication board and inverter communication board carry out data communication；
Each MLPE and MLPE communication board mutually communicates, and inverter communication board is mutually communicated with cloud monitor supervision platform.
2. the photovoltaic DC-to-AC converter of integrated package grade communicating circuit as described in claim 1, which is characterized in that
MLPE communication board is connect with inverter communication board by RS485 or Ethernet interface.
3. the photovoltaic DC-to-AC converter of integrated package grade communicating circuit as described in claim 1, which is characterized in that
MLPE and MLPE communication board pass through WiFi wireless telecommunications.
4. the photovoltaic DC-to-AC converter of integrated package grade communicating circuit as described in claim 1, which is characterized in that
Inverter communication board and cloud monitor supervision platform pass through WiFi wireless telecommunications.
5. the photovoltaic DC-to-AC converter of integrated package grade communicating circuit as described in claim 1, which is characterized in that
The relay switch is to power off switch open in usual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392080.XU CN208623623U (en) | 2018-08-28 | 2018-08-28 | The photovoltaic DC-to-AC converter of integrated package grade communicating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821392080.XU CN208623623U (en) | 2018-08-28 | 2018-08-28 | The photovoltaic DC-to-AC converter of integrated package grade communicating circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623623U true CN208623623U (en) | 2019-03-19 |
Family
ID=65716909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821392080.XU Active CN208623623U (en) | 2018-08-28 | 2018-08-28 | The photovoltaic DC-to-AC converter of integrated package grade communicating circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208623623U (en) |
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2018
- 2018-08-28 CN CN201821392080.XU patent/CN208623623U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200511 Address after: 214028 Jiangsu Province, Wuxi New District No. 9 Xinhua Road Wu Patentee after: WUXI SHANGDE YIJIA NEW ENERGY Co.,Ltd. Address before: 214028 Jiangsu Province, Wuxi New District No. 9 Xinhua Road Wu Co-patentee before: WUXI SUNTECH POWER Co.,Ltd. Patentee before: WUXI SHANGDE YIJIA NEW ENERGY Co.,Ltd. |