CN203261246U - Three-phase grid-connected inverter - Google Patents
Three-phase grid-connected inverter Download PDFInfo
- Publication number
- CN203261246U CN203261246U CN 201320141931 CN201320141931U CN203261246U CN 203261246 U CN203261246 U CN 203261246U CN 201320141931 CN201320141931 CN 201320141931 CN 201320141931 U CN201320141931 U CN 201320141931U CN 203261246 U CN203261246 U CN 203261246U
- Authority
- CN
- China
- Prior art keywords
- module
- input
- output
- phase grid
- inversion
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Inverter Devices (AREA)
Abstract
The utility model provides a three-phase grid-connected inverter, which comprises a casing. An input module, a voltage boost module, an inversion module, a filtering module, a control module and an output module are arranged inside the casing. The input module is sequentially connected with the voltage boost module, the inversion module, the filtering module and the output module. The control module is connected with the voltage boost module and the inversion module in a bidirectional way. A power supply module is connected with the voltage boost module and the input module in a bidirectional way. The power supply module supplies power to the control module. Each module is independently arranged inside the casing. Each module is fixed in a movable connection way. Each module is connected by adopting movably dismounted wires. The three-phase grid-connected inverter adopts a modularized design. Each module is connected through the movably dismounted wires. Once there is a fault, a maintainer is only required to replace a corresponding module. The checking and maintaining difficulties are lowered. The period is shortened. The maintenance cost is lowered. Furthermore, by adopting the modularized design, the three-phase grid-connected inverter has the reliability and stability enhanced.
Description
Technical field
The utility model is specifically related to a kind of three-phase grid-connected inverter.
Background technology
Along with the aggravation of energy crisis and greenhouse effect, the solar energy of renewable, cleanliness without any pollution, safety has become the primary selection of new energy development.But photovoltaic plant is safe because having, reliable, pollution-free, safeguard simple unattended operation, resourceful advantage, becomes the important way of utilizing solar energy.Photovoltaic generation has good compatibility, and can mix with other energy and use, even can the replacing traditional energy.
Existing three-phase grid-connected inverter adopts single board design, in case be out of order, the fault point is difficult to judge, cause overhauling the lengthening of difficulty and time between overhauls(TBO), and when infringement that certain parts of inverter occur to repair, cause scrapping of whole inverter, increased maintenance cost.
The utility model content
The purpose of this utility model provides the sub-module installation, overhauls and changes easily three-phase grid-connected inverter.
The technical scheme that its technical problem that solves the utility model adopts is:
A kind of three-phase grid-connected inverter, it comprises casing, be provided with input module in the described casing, boost module, inversion module, filtration module, control module and output module, the output of described input module is connected with the input of boost module, the output of boost module is connected with the input of inversion module, the output of inversion module is connected with the input of filtration module, the output of filtration module is connected with the input of output module, control module and boost module, the two-way connection of inversion module, described power module is connected with input module with boost module and is connected, described power module is the control module power supply, described each module independently is installed in box house, each module adopts the mode that is flexibly connected to fix, and the electric wire of employing activity dismounting connects between described each module.
Described each module adopts the fixing mode of screw to be fixed on box house.
Described boost module adopts the automatic boosting module of control module control.
The input of described input module is direct-flow input end, is provided with the voltage sensor for detection of the input direct voltage size.
The output of described output module is ac output end, adopts without isolating transformer, and a described end without isolating transformer is provided with the voltage sensor for detection of the output AC voltage size.
Described control module also is provided with the communication module for communication management.
The beneficial effects of the utility model are, adopt modularized design, and adopt dismountable electric wire to connect between each module, in case break down, the maintenance personal only need change corresponding module just can finish maintenance, checks with the maintenance difficulty to reduce, and the cycle shortens, maintenance cost reduces simultaneously, and adopts the reliability and stability of the three-phase grid-connected inverter of modularized design to be improved.
Description of drawings
Accompanying drawing 1 is logical schematic of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further specified:
Comprise casing such as Fig. 1 the utility model, be provided with input module 1 in the described casing, boost module 2, inversion module 3, filtration module 4, control module 6 and output module 5, the output of described input module 1 is connected with the input of boost module 2, the output of boost module 2 is connected with the input of inversion module 3, the output of inversion module 3 is connected with the input of filtration module 4, the output of filtration module 4 is connected with the input of output module 5, control module 6 and boost module 2, inversion module 3 two-way connections, described power module 7 is connected two-way the connection with input module with boost module 2, described power module 7 is control module 6 power supplies, described each module independently is installed in box house, each module adopts the fixing mode of screw to be fixed on box house, and the electric wire of employing activity dismounting connects between described each module.Described boost module 2 adopts the automatic boosting module of control module 6 controls, the input of described input module 1 is direct-flow input end, be provided with the voltage sensor for detection of the input direct-current size, the output of described output module 5 is ac output end, be provided with the voltage sensor for detection of the output AC voltage size, described control module 6 also is provided with the communication module 8 for communication management
Input module 1 is provided with voltage sensor, is used for the variation of monitoring input direct voltage.
When boost module 2 can realize that input voltage does not satisfy the required voltage of inversion module, automatically with voltage stabilization in the required operating voltage of inversion module 3, it is stored in voltage in the power module 7, when the undertension of input module 1, power module 7 provides voltage to input module 1, makes input voltage satisfy inversion module 3 normal operating voltages.
Filtration module 4 adopts the filter with three road filter functions, realizes the filter function to output voltage.
Modules is independent mutually, and is screwed in the casing respectively, and connects by dismountable electric wire each other, when inverter breaks down, and for convenience detach and maintenance.
Above-mentioned only is the embodiment of utility model, but design concept of the present utility model is not limited to this, allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection range.
Claims (6)
1. three-phase grid-connected inverter, it comprises casing, be provided with input module (1) in the described casing, boost module (2), inversion module (3), filtration module (4), control module (6) and output module (5), it is characterized in that: the output of described input module (1) is connected with the input of boost module (2), the output of boost module (2) is connected with the input of inversion module (3), the output of inversion module (3) is connected with the input of filtration module (4), the output of filtration module (4) is connected with the input of output module (5), control module (6) and boost module (2), the two-way connection of inversion module (3), described power module (7) is connected 1 with boost module (2) with input module) the two-way connection, described power module (7) is control module (6) power supply, described each module independently is installed in box house, each module adopts the mode that is flexibly connected to fix, and the electric wire of employing activity dismounting connects between described each module.
2. three-phase grid-connected inverter according to claim 1 is characterized in that: described each module adopts the fixing mode of screw to be fixed on box house.
3. three-phase grid-connected inverter according to claim 1 is characterized in that: the automatic boosting module that described boost module (2) adopts control module (6) to control.
4. three-phase grid-connected inverter according to claim 1, it is characterized in that: the input of described input module (1) is direct-flow input end, is provided with the voltage sensor that refers to the direct voltage size for detection of input.
5. three-phase grid-connected inverter according to claim 1, it is characterized in that: the output of described output module (5) is ac output end, employing is without isolating transformer, and a described end without isolating transformer is provided with the voltage sensor for detection of the output AC voltage size.
6. three-phase grid-connected inverter according to claim 1, it is characterized in that: described control module (6) also is provided with the communication module (8) for communication management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141931 CN203261246U (en) | 2013-03-26 | 2013-03-26 | Three-phase grid-connected inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320141931 CN203261246U (en) | 2013-03-26 | 2013-03-26 | Three-phase grid-connected inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203261246U true CN203261246U (en) | 2013-10-30 |
Family
ID=49473783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320141931 Expired - Fee Related CN203261246U (en) | 2013-03-26 | 2013-03-26 | Three-phase grid-connected inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203261246U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277164A (en) * | 2020-03-14 | 2020-06-12 | 宁波锦浪新能源科技股份有限公司 | Split type photovoltaic inverter system who steps up and inverter circuit |
| CN112751492A (en) * | 2020-12-29 | 2021-05-04 | 上海昌郓机电有限公司 | Three-phase grid-connected inverter adopting optical fiber transmission |
-
2013
- 2013-03-26 CN CN 201320141931 patent/CN203261246U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111277164A (en) * | 2020-03-14 | 2020-06-12 | 宁波锦浪新能源科技股份有限公司 | Split type photovoltaic inverter system who steps up and inverter circuit |
| CN112751492A (en) * | 2020-12-29 | 2021-05-04 | 上海昌郓机电有限公司 | Three-phase grid-connected inverter adopting optical fiber transmission |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203377675U (en) | Bus station intelligent power supply system characterized by clean energy compensation | |
| CN104242738A (en) | Frequency conversion and energy saving control device and method for cluster well pumping units | |
| CN105375519A (en) | Grid-connected photovoltaic power generation system and control method therefor | |
| CN203617729U (en) | Modularization emergency power supply unit | |
| CN203071637U (en) | DC power supply connection control apparatus | |
| CN102957335A (en) | Bidirectional battery storage inverter used for grid-connected systems | |
| CN210092949U (en) | Power supply device applied to power transmission line fault indicator | |
| CN203399031U (en) | Cluster well oil pumping unit frequency conversion energy-saving control apparatus | |
| CN205846843U (en) | A kind of diesel generating set dual redundant D.C. regulated power supply system | |
| CN105262158A (en) | Household energy storage control circuit | |
| CN203261246U (en) | Three-phase grid-connected inverter | |
| CN103872761A (en) | Switching method of UPS power supplier and UPS power supplier | |
| CN102624086A (en) | Night-off type alternating-current power grid power-taking photovoltaic inverter | |
| CN203326635U (en) | Solar power supply control device | |
| CN202816981U (en) | Solar cell module with mini inverter | |
| CN202550614U (en) | Off-line discharge device of storage battery | |
| CN102163813A (en) | Box-type substation special for electric vehicle charging station | |
| CN203386364U (en) | Traffic signal control system with alternating-direct current power supplies | |
| CN204304465U (en) | There is the photovoltaic grid-connected inversion control system that multimode group detects sampling functions | |
| CN106787148A (en) | A kind of photovoltaic energy storage inverter auxiliary switching power supply system | |
| CN204013325U (en) | A kind of Intelligent Power Station operating control device | |
| CN207251454U (en) | Integrated elevator supply unit | |
| CN202474856U (en) | Photovoltaic inverter system with direct-current false connection prevention function | |
| KR20120017908A (en) | Dc power sola junction pannel | |
| CN205141699U (en) | Generating set's parallel machine control circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20190326 |