CN203774835U - Household-type micro grid system - Google Patents
Household-type micro grid system Download PDFInfo
- Publication number
- CN203774835U CN203774835U CN201420136356.3U CN201420136356U CN203774835U CN 203774835 U CN203774835 U CN 203774835U CN 201420136356 U CN201420136356 U CN 201420136356U CN 203774835 U CN203774835 U CN 203774835U
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- CN
- China
- Prior art keywords
- inverter
- grid
- energy
- power converter
- household
- 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
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Classifications
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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
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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model discloses a household-type micro grid system which is applied in the new energy power generation field. The system is formed by a photovoltaic cell, a power converter, a bidirectional power converter, a storage battery group, an energy management unit, an inverter, a local electric alternating current load and a power grid. Photovoltaic power generation is used as a main power generation system. A storage battery is an energy storage auxiliary apparatus. Through the energy management unit, energy management and control are performed on the micro grid system. The household-type micro grid can carry out grid-connected operation and off-grid operation. Reliable power supply is provided for a user and power generation efficiency of the household-type micro grid is increased.
Description
Technical field
The utility model residents micro-grid system belongs to generation of electricity by new energy field, relates to for distribution applications field.
Background technology
Residents micro-grid system can be applicable to the to have ready conditions civilian family of installation photovoltaic component.Such micro-electrical network utilizes the technology such as photovoltaic power generation technology and assembly thereof, power electronic technology, energy storage, powers to the load reliably.Such micro-electrical network is mainly taking photovoltaic generation as main, and is equipped with storage battery as energy storing device, to solve intermittence and the instability problem of photovoltaic generation.
Summary of the invention
For above problem, feature of the present utility model is to provide a kind of residents micro-grid system, and wherein taking photovoltaic generation as main electricity generation system, storage battery is stored energy auxiliary generating system.The micro-electrical network of this residents both can, from network operation, also can be incorporated into the power networks, and grid-connected system and off-grid system can carry out pattern complementation, thereby improved the generating efficiency of whole intelligent micro-grid.
The following technical scheme that the utility model adopts:
Native system is made up of photovoltaic cell, power inverter, bidirectional power converter, batteries, energy management unit, inverter, local electricity consumption AC load and electrical network, and AC load and inverter are connected on electrical network; Batteries is connected with bidirectional power converter, and bidirectional power converter output is connected on the input of inverter; Photovoltaic cell is connected to the input of inverter after power inverter series connection; Energy management unit is connected with photovoltaic cell, power inverter, bidirectional power converter, batteries, inverter, AC load and electrical network respectively.
Micro-grid system is except giving the energy of photovoltaic generation load, and unnecessary energy stores batteries into by bidirectional power converter; In the time that batteries energy is full of, micro-grid system can be by inverter by the electrical network that is input to of energy, and realization is incorporated into the power networks.In the time that photovoltaic generation quantity not sufficient enough offers load use, batteries is discharged and is provided energy to load through bidirectional power converter; When electrical network breaks down be, system enters from network operation pattern, offers local load by the energy of storing in batteries through bidirectional power converter electric discharge, ensures the electricity consumption of AC load.
Photovoltaic generation part in micro-grid system is replaceable one-tenth miniature wind power generation system also, and wind generator system comprises wind turbine generator, wind-force converter and wind-force combining inverter.The input of wind turbine generator output access power converter, the output of power inverter is connected with electrical network by wind-force combining inverter.
Brief description of the drawings
Fig. 1 is system connection diagram of the present utility model;
Embodiment:
Referring to Fig. 1, a kind of residents micro-grid system, comprise photovoltaic cell 1, power inverter 2, bidirectional power converter 4, batteries 3, energy management unit 8, inverter 5, local electricity consumption AC load 6 and electrical network 7, AC load 6 and inverter 5 are connected on electrical network 7; Batteries 3 is connected with bidirectional power converter 4, and the output of bidirectional power converter 4 is connected on the input of inverter 5; Photovoltaic cell 1 is connected to the input of inverter 5 after power inverter 2 series connection; Energy management unit 8 is connected with photovoltaic cell 1, power inverter 2, bidirectional power converter 4, batteries 3, inverter 5, AC load 6 and electrical network 7 respectively.
Operation principle of the present utility model:
In the time implementing, micro-grid system is except giving the energy of photovoltaic generation load, and unnecessary energy stores batteries into by bidirectional power converter; In the time that batteries energy is full of, micro-grid system can be by inverter by the electrical network that is input to of energy, and realization is incorporated into the power networks.In the time that photovoltaic generation quantity not sufficient enough offers load use, batteries is discharged and is provided energy to load through bidirectional power converter; When electrical network breaks down be, system enters from network operation pattern, offers local load by the energy of storing in batteries through bidirectional power converter electric discharge, ensures the electricity consumption of AC load.
Claims (1)
1. a residents micro-grid system, it is characterized in that: be made up of photovoltaic cell, power inverter, bidirectional power converter, batteries, energy management unit, inverter, local electricity consumption AC load and electrical network, AC load (6) and inverter (5) are connected on electrical network (7); Batteries (3) is connected with bidirectional power converter (4), and the output of bidirectional power converter (4) is connected on the input of inverter (5); Photovoltaic cell (1) is connected to the input of inverter (5) after power inverter (2) series connection; Energy management unit (8) is connected with photovoltaic cell (1), power inverter (2), bidirectional power converter (4), batteries (3), inverter (5), AC load (6) and electrical network (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136356.3U CN203774835U (en) | 2014-03-25 | 2014-03-25 | Household-type micro grid system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420136356.3U CN203774835U (en) | 2014-03-25 | 2014-03-25 | Household-type micro grid system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774835U true CN203774835U (en) | 2014-08-13 |
Family
ID=51291985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420136356.3U Expired - Fee Related CN203774835U (en) | 2014-03-25 | 2014-03-25 | Household-type micro grid system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774835U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535190A (en) * | 2018-05-24 | 2019-12-03 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of local control method of family microgrid energy router energy management unit |
| CN112350368A (en) * | 2020-10-13 | 2021-02-09 | 芜湖泰伦特能源科技有限公司 | Off-grid and on-grid control method for micro-grid |
-
2014
- 2014-03-25 CN CN201420136356.3U patent/CN203774835U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110535190A (en) * | 2018-05-24 | 2019-12-03 | 天津大学（青岛）海洋工程研究院有限公司 | A kind of local control method of family microgrid energy router energy management unit |
| CN110535190B (en) * | 2018-05-24 | 2023-05-05 | 天津大学（青岛）海洋工程研究院有限公司 | Local control method of household micro-grid energy router energy management unit |
| CN112350368A (en) * | 2020-10-13 | 2021-02-09 | 芜湖泰伦特能源科技有限公司 | Off-grid and on-grid control method for micro-grid |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20200325 |