CN203707803U - Grid-connected anti-countercurrent type inverter control system - Google Patents
Grid-connected anti-countercurrent type inverter control system Download PDFInfo
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- CN203707803U CN203707803U CN201420070405.8U CN201420070405U CN203707803U CN 203707803 U CN203707803 U CN 203707803U CN 201420070405 U CN201420070405 U CN 201420070405U CN 203707803 U CN203707803 U CN 203707803U
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- inverter
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- power
- control system
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Abstract
The utility model discloses a grid-connected anti-countercurrent type inverter control system, which comprises a solar battery, an inverter, a load and a power distribution cabinet connected with a power grid, wherein the solar battery is connected with the inverter, and the inverter is connected with the load. The grid-connected anti-countercurrent type inverter control system is characterized in that the inverter is further connected with a power adjusting module which can adjust output power of the inverter. The grid-connected anti-countercurrent type inverter control system prevents the power which is generated by solar energy from being connected into the power grid through the power distribution cabinet, and avoids the burden of extra electricity utilization fee for users.
Description
Technical field
The utility model relates to a kind of grid-connected anti-reverse flow pattern inverter control system.
Background technology
Have at present a kind of grid-connected anti-reverse flow pattern inverter control system of small-sized solar power plant, comprise solar cell, inverter, load, the power distribution cabinet being connected with electrical network, described solar cell is connected with inverter, and described inverter is connected with load.Due to the relation of power distribution cabinet, inverter outputs to electrical network by power distribution cabinet, and electrical network is input to load by power distribution cabinet, be that power distribution cabinet forward or reversion all can have counting, even cause to grid power transmission this, power distribution cabinet also has counting, causes the extra electricity consumption electricity charge burden of user.
Utility model content
The technical problems to be solved in the utility model is, provides one to prevent that solar energy electricity is incorporated into electrical network by power distribution cabinet, avoids to the grid-connected anti-reverse flow pattern inverter control system for causing extra electricity consumption electricity charge burden.
The technical solution of the utility model is, a kind of grid-connected anti-reverse flow pattern inverter control system with following structure is provided, comprise solar cell, inverter, load, the power distribution cabinet being connected with electrical network, described solar cell is connected with inverter, described inverter is connected with load, is also connected with the power conditioning module of adjustable inverter power output on described inverter.
Adopt after above structure, the utility model compared with prior art, have the following advantages: power conditioning module removes to gather the input current of inverter output current and load, by both current ratios, if inverter output current is less than the input current of load, solar cell normal power supply is to load, simultaneously also powering load of electrical network; If inverter output current is greater than the input current of load, power conditioning module regulates the power output of inverter, solar cell normal power supply after adjusting is to load, until the input current of inverter output current and load is consistent, now not powering load of electrical network, prevent that like this solar energy electricity is incorporated into electrical network by power distribution cabinet, avoid to for causing extra electricity consumption electricity charge burden
As improvement, between described power distribution cabinet and electrical network, be also provided with control switch, if inverter output current is greater than the input current of load, the control switch being connected with power distribution cabinet disconnects, and now makes power distribution cabinet and electrical network disconnect, and further prevents electrical network powering load.
Accompanying drawing explanation
Accompanying drawing 1 is the principle schematic of grid-connected anti-reverse flow pattern inverter control system of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
As shown in Figure 1, grid-connected anti-reverse flow pattern inverter control system of the present utility model, comprise solar cell, inverter, load, the power distribution cabinet being connected with electrical network, described solar cell is connected with inverter, described inverter is connected with load, it is characterized in that: the power conditioning module that is also connected with adjustable inverter power output on described inverter.Power conditioning module removes to gather the input current of inverter output current and load, and by both current ratios, if inverter output current is less than the input current of load, solar cell normal power supply is to load, simultaneously also powering load of electrical network; If inverter output current is greater than the input current of load, power conditioning module regulates the power output of inverter, solar cell normal power supply after adjusting is to load, until the input current of inverter output current and load is consistent, and now not powering load of electrical network.
Between described power distribution cabinet and electrical network, be also provided with control switch, if inverter output current is greater than the input current of load, the control switch being connected with power distribution cabinet disconnects, and now makes power distribution cabinet and electrical network disconnect, and further prevents electrical network powering load.
Claims (2)
1. a grid-connected anti-reverse flow pattern inverter control system, comprise solar cell, inverter, load, the power distribution cabinet being connected with electrical network, described solar cell is connected with inverter, described inverter is connected with load, it is characterized in that: the power conditioning module that is also connected with adjustable inverter power output on described inverter.
2. grid-connected anti-reverse flow pattern inverter control system according to claim 1, is characterized in that: between described power distribution cabinet and electrical network, be also provided with control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070405.8U CN203707803U (en) | 2014-02-18 | 2014-02-18 | Grid-connected anti-countercurrent type inverter control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420070405.8U CN203707803U (en) | 2014-02-18 | 2014-02-18 | Grid-connected anti-countercurrent type inverter control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203707803U true CN203707803U (en) | 2014-07-09 |
Family
ID=51058185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420070405.8U Expired - Fee Related CN203707803U (en) | 2014-02-18 | 2014-02-18 | Grid-connected anti-countercurrent type inverter control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203707803U (en) |
-
2014
- 2014-02-18 CN CN201420070405.8U patent/CN203707803U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20140709 Termination date: 20150218 |
|
| EXPY | Termination of patent right or utility model |