CN103560537A - Area distribution photovoltaic power supply grid-connected system and control method of area distribution photovoltaic power supply grid-connected system - Google Patents
Area distribution photovoltaic power supply grid-connected system and control method of area distribution photovoltaic power supply grid-connected system Download PDFInfo
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- CN103560537A CN103560537A CN201310469221.9A CN201310469221A CN103560537A CN 103560537 A CN103560537 A CN 103560537A CN 201310469221 A CN201310469221 A CN 201310469221A CN 103560537 A CN103560537 A CN 103560537A
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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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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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Abstract
The invention discloses an area distribution photovoltaic power supply grid-connected system and a control method of the area distribution photovoltaic power supply grid-connected system. The area distribution photovoltaic power supply grid-connected system comprises family photovoltaic power grids, and each family photovoltaic power grid is composed of a family storage battery, a solar battery pack array, a control cabinet, a plurality of direct current household appliances, an inverter and a plurality of alternating current household appliances. Each control cabinet is connected into the national grid, the family photovoltaic power grids are normally used when sunlight is sufficient and devices are free of faults, and transmit redundant electric power to the national grid, and electric power is supplied by the national grid when the electric power is insufficient. The area distribution photovoltaic power supply grid-connected system is characterized by further comprising area storage battery packs, each area storage battery pack is connected with the multiple control cabinets, and the area storage battery packs are charged by the redundant electric power of the family storage batteries and further supply the electric power to the family photovoltaic power grids. According to the area distribution photovoltaic power supply grid-connected system and the control method of the area distribution photovoltaic power supply grid-connected system, the reliability and the use efficiency of distribution photovoltaic power supply are improved, and electric energy is saved.
Description
Technical field
The present invention relates to distributed photovoltaic interconnection technology field, particularly relate to a kind of area distribution formula photovoltaic power supply grid-connected system and control method thereof.
Background technology
Existing distributed photovoltaic grid-connected system is that family photovoltaic networks, itself and net mode are: adopt control cubicle to control family's photovoltaic electrical network, when family's DC electric apparatus electricity consumption, directly from control cubicle, pick out use, when daytime, home communication electrical equipment used, after converting direct current to interchange by inverter, supply home communication electrical equipment uses, when electricity consumption has surplus or does not use electric power, control cubicle is used family's storage battery to collect the electric power resource that solar-energy photo-voltaic cell group pattern sends, wait until when night or sunray are not enough, family's storage battery is emitted the electric power resource of storage to supply with user's use, when being full of remaining electric power resource, family's storage battery is conveyed into national grid, offering other users uses.
Above-mentioned distributed photovoltaic grid-connected system in use, due to the inhomogeneities of weather or winter solar cell electricity very weak or do not have, often occur that this family's photovoltaic electrical network cannot be used, the electric power of surplus is inputted national grid in addition, through long-distance transport, loss is also larger, makes the service efficiency of this photovoltaic electrical network not high.
In order to address the above problem, our unit has proposed a kind of area distribution photovoltaic parallel in system and has solved.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of area distribution formula photovoltaic power supply grid-connected system and control method thereof, improved the reliability of distributed photovoltaic power supply, increased the service efficiency of distributed photovoltaic power supply, and saved electric power energy.
The technical solution adopted in the present invention is: a kind of area distribution formula photovoltaic power supply grid-connected system includes family's storage battery, solar cell group pattern, national grid, control cubicle, direct current household electrical appliances, inverter, exchange household electrical appliances, solar cell group pattern provides electric power to the control cubicle connecting thereon, control cubicle is controlled the power supply state of distributed photovoltaic electric power system, family's storage battery connects control cubicle and carries out charging and discharging, direct current household electrical appliances are all connected control cubicle with inverter, direct current household electrical appliances directly obtain electric power from control cubicle, exchanging household electrical appliances is connected to and on control cubicle, is obtained electric power by inverter, one family storage battery, one group of solar cell group pattern, a control cubicle, some direct current household electrical appliances, an inverter, some interchange household electrical appliances form one family photovoltaic electrical network, each control cubicle is connected into national grid, family's photovoltaic electrical network is normally used when sunny and equipment fault-free, family's photovoltaic electrical network flows to national grid by surplus electric power, during power shortage, by national grid, provide electric power, grid-connected system also includes region batteries, each region batteries connects a plurality of control cubicles, region battery pack is by the power charge of each family's storage battery surplus, region battery pack Hai Wei family photovoltaic mains supply, of the present invention on the grid-connected basis of existing familial distribution of cases formula photovoltaic power supply, the electrical power storage of some distributed home photovoltaic electrical networks surplus in a certain region is got up, form a Distributed Area photovoltaic power supply net system, when any one distributed home mains supply is not enough, region batteries is its power supply, electric power resource service efficiency and the reliability of distributed photovoltaic electrical network have been improved, the generation of the emergency such as power failure during zero when this Distributed Area formula photovoltaic power supply net system can also be used national grid for prevention.
A kind of control method of area distribution formula photovoltaic power supply grid-connected system is: adopting distributed photovoltaic electrical network is family's power supply, and the electric power of surplus is inputted to national grid for other users, distributed photovoltaic grid-connected system adopts region batteries that the surplus electrical power storage of the distributed photovoltaic domestic electric network in a certain region is got up, when family's battery feed deficiency or power failure Shi，Wei family photovoltaic mains supply.
Further improvement of the present invention is: a kind of control procedure of area distribution formula photovoltaic power supply grid-connected system is: the first step: provide electric power to control cubicle by solar cell group pattern; Second step: control cubicle is to judging that whether the electric weight that solar cell group pattern provides is sufficient, if sufficient Jiu Wei family power supply, also has surplus Jiu Wei family charge in batteries, after family's storage battery is full of, surplus electric weight is filled with region batteries, after region batteries is full of, surplus electric power flows to national grid, is national grid power supply; If inadequate, just judge whether family's storage battery has electric power, have and just use family's storage battery power supply, whether have electric power without just continuing judging area storage battery, region battery power abundance is just used it to provide electric power for user, and region battery power not just adopts the electric power of national grid.
Compared with prior art, the invention has the beneficial effects as follows: on the grid-connected basis of existing familial distribution of cases formula photovoltaic power supply, the electrical power storage of some distributed home photovoltaic electrical networks surplus in a certain region is got up, form a Distributed Area formula photovoltaic power supply net system, when any one distributed home mains supply is not enough, region batteries is its power supply, electric power resource service efficiency and the reliability of distributed photovoltaic electrical network have been improved, the generation of the emergency such as power failure during zero when this region-type photovoltaic power supply net system can also be used national grid for prevention.
Area distribution formula photovoltaic power supply network of the present invention has improved the reliability of distributed photovoltaic power supply, has increased the service efficiency of distributed photovoltaic power supply, and has saved the electric power energy that solar battery array group converts.
Accompanying drawing explanation
Fig. 1 is a kind of area distribution formula photovoltaic power supply grid-connected system schematic diagram;
Fig. 2 is a kind of area distribution formula photovoltaic power supply grid-connected system control chart;
Fig. 3 is the grid-connected schematic diagram of distributed photovoltaic before a kind of area distribution formula photovoltaic power supply grid-connected system improves.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with drawings and Examples, the present invention is further described, and this embodiment, only for explaining the present invention, does not form and limits protection scope of the present invention.
As shown in Figure 1, a kind of area distribution formula photovoltaic power supply grid-connected system includes family's storage battery 1, solar cell group pattern 2, national grid 3, control cubicle 4, direct current household electrical appliances 5, inverter 7, exchange household electrical appliances 8, solar cell group pattern 2 provides electric power to the control cubicle 4 connecting thereon, control cubicle 4 is controlled the power supply state of distributed photovoltaic electric power system, family's storage battery 1 connects control cubicle 4 and carries out charging and discharging, direct current household electrical appliances 5 are all connected control cubicle 4 with inverter 7, direct current household electrical appliances 5 directly obtain electric power from control cubicle 4, exchanging household electrical appliances 8 is connected on control cubicle 4 and is obtained electric power by inverter 7, one family storage battery 1, one group of solar cell group pattern 2, a control cubicle 4, some direct current household electrical appliances 5, an inverter 7, some interchange household electrical appliances 8 form one family photovoltaic electrical network, each control cubicle 4 is connected into national grid 3, family's photovoltaic electrical network is normally used when sunny and equipment fault-free, family's photovoltaic electrical network flows to national grid by surplus electric power, during power shortage, by national grid 3, provide electric power, grid-connected system also includes region batteries 6, each region batteries 6 connects a plurality of control cubicles 4, region battery pack 6 is by the power charge of each family's storage battery 1 surplus, region battery pack 6 Hai Wei family photovoltaic mains supplies, of the present invention on the grid-connected basis of existing familial distribution of cases formula photovoltaic power supply, the electrical power storage of some distributed home photovoltaic electrical networks surplus in a certain region is got up, form a Distributed Area photovoltaic power supply net system, when any one distributed home mains supply is not enough, region batteries is its power supply, electric power resource service efficiency and the reliability of distributed photovoltaic electrical network have been improved, the generation of the emergency such as power failure during zero when this Distributed Area formula photovoltaic power supply net system can also be used national grid for prevention.
A kind of control method of area distribution formula photovoltaic power supply grid-connected system is: adopting distributed photovoltaic electrical network is family's power supply, and the electric power of surplus is inputted to national grid 3 for other users, distributed photovoltaic grid-connected system adopts region batteries 6 that the surplus electrical power storage of the distributed photovoltaic domestic electric network in a certain region is got up, when family's battery feed deficiency or power failure Shi，Wei family photovoltaic mains supply.
As shown in Figure 2, a kind of control procedure of area distribution formula photovoltaic power supply grid-connected system is: the first step: by solar cell group pattern 2, provide electric power to control cubicle 4; Second step: control cubicle 4 is to judging that whether the electric weight that solar cell group pattern 2 provides is sufficient, if sufficient Jiu Wei family power supply, also has surplus Jiu Wei family charge in batteries, after family's storage battery is full of, surplus electric weight is filled with region batteries, after region batteries is full of, surplus electric power flows to national grid, is national grid power supply; If inadequate, just judge whether family's storage battery has electric power, have and just use family's storage battery power supply, whether have electric power without just continuing judging area storage battery, region battery power abundance is just used it to provide electric power for user, and region battery power not just adopts the electric power of national grid.
As shown in Figure 3, existing distributed photovoltaic power supply grid-connected system, only there is a storage battery in each family, in rainy weather or winter, photovoltaic power supply power shortage, just needs national grid power supply, and the electric power of national grid confession need be through long-distance transport, transportation loss ratio is larger, is unfavorable for the conservation of power energy.
Area distribution formula photovoltaic power supply network of the present invention has improved the reliability of distributed photovoltaic power supply, has increased the service efficiency of distributed photovoltaic power supply, and has saved the electric power energy that solar battery array group converts.
What embodiments of the invention were announced is preferred embodiment, but is not limited to this, those of ordinary skill in the art; very easily, according to above-described embodiment, understand spirit of the present invention, and make different amplifications and variation; but only otherwise depart from spirit of the present invention, all in protection scope of the present invention.
Claims (3)
1. an area distribution formula photovoltaic power supply grid-connected system, described grid-connected system includes family's storage battery (1), solar cell group pattern (2), national grid (3), control cubicle (4), direct current household electrical appliances (5), inverter (7), exchange household electrical appliances (8), described solar cell group pattern (2) provides electric power to the control cubicle (4) connecting thereon, described control cubicle (4) is controlled the power supply state of described distributed photovoltaic electric power system, described family storage battery (1) connects control cubicle (4) and carries out charging and discharging, described direct current household electrical appliances (5) are all connected control cubicle (4) with inverter (7), described direct current household electrical appliances (5) directly obtain electric power from control cubicle (4), described interchange household electrical appliances (8) are connected on control cubicle (4) and are obtained electric power by inverter (7), described one family storage battery (1), one group of solar cell group pattern (2), a control cubicle (4), some direct current household electrical appliances (5), an inverter (7), some interchange household electrical appliances (8) form one family photovoltaic electrical network, described each control cubicle (4) is connected into national grid (3), described family photovoltaic electrical network is normally used when sunny and equipment fault-free, described family photovoltaic electrical network flows to national grid by surplus electric power, during power shortage, by national grid (3), provide electric power, it is characterized in that: described grid-connected system also includes region batteries (6), described each region batteries (6) connects a plurality of control cubicles (4), described region battery pack (6) is by the power charge of each family's storage battery (1) surplus, described region battery pack (6) Hai Wei family photovoltaic mains supply.
2. the control method of an area distribution formula photovoltaic power supply grid-connected system is: adopting distributed photovoltaic electrical network is family's power supply, and the electric power of surplus is inputted to national grid (3) for other users, it is characterized in that: described distributed photovoltaic grid-connected system adopts region batteries (6) by the surplus electrical power storage of the distributed photovoltaic domestic electric network in a certain region, when family's battery feed deficiency or power failure Shi，Wei family photovoltaic mains supply.
3. the control method of a kind of area distribution formula photovoltaic power supply grid-connected system according to claim 2, is characterized in that: the control procedure of described distributed photovoltaic power supply is:
The first step: provide electric power to control cubicle (4) by solar cell group pattern (2);
Second step: control cubicle (4) is to judging that whether the electric weight that solar cell group pattern (2) provides is sufficient, if sufficient Jiu Wei family power supply, also has surplus Jiu Wei family charge in batteries, after family's storage battery is full of, surplus electric weight is filled with region batteries, after region batteries is full of, surplus electric power flows to national grid, is national grid power supply; If inadequate, just judge whether family's storage battery has electric power, have and just use family's storage battery power supply, whether have electric power without just continuing judging area storage battery, region battery power abundance is just used it to provide electric power for user, and region battery power not just adopts the electric power of national grid.
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| CN201310469221.9A CN103560537A (en) | 2013-10-10 | 2013-10-10 | Area distribution photovoltaic power supply grid-connected system and control method of area distribution photovoltaic power supply grid-connected system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2514092A (en) * | 2013-03-21 | 2014-11-19 | Sustainable Venture Dev Partners Ltd | Electrical energy storage device and system |
| CN106054838A (en) * | 2016-06-24 | 2016-10-26 | 李俊桦 | Household power control energy-saving system |
| CN107819353A (en) * | 2017-10-30 | 2018-03-20 | 新克科技有限公司 | A kind of domestic solar is had more than needed reponse system |
| CN112787332A (en) * | 2021-03-04 | 2021-05-11 | 张晓光 | Point type self-generating self-power-utilization mutual feed system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185531A (en) * | 2011-05-16 | 2011-09-14 | 武汉纺织大学 | Solar photovoltaic off-grid and grid-connected multi-mode generating system |
| CN102687363A (en) * | 2009-12-22 | 2012-09-19 | 松下电器产业株式会社 | Electric power supply system |
| WO2012165365A1 (en) * | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Power supply system |
| CN202678984U (en) * | 2012-07-30 | 2013-01-16 | 广东汇盈电力工程有限公司 | Solar photovoltaic system applied to grid-connected power supply of large-size civil buildings |
| CN203536974U (en) * | 2013-10-10 | 2014-04-09 | 国家电网公司 | Local distributed grid-connected photovoltaic power supply system |
-
2013
- 2013-10-10 CN CN201310469221.9A patent/CN103560537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102687363A (en) * | 2009-12-22 | 2012-09-19 | 松下电器产业株式会社 | Electric power supply system |
| CN102185531A (en) * | 2011-05-16 | 2011-09-14 | 武汉纺织大学 | Solar photovoltaic off-grid and grid-connected multi-mode generating system |
| WO2012165365A1 (en) * | 2011-05-31 | 2012-12-06 | パナソニック株式会社 | Power supply system |
| CN202678984U (en) * | 2012-07-30 | 2013-01-16 | 广东汇盈电力工程有限公司 | Solar photovoltaic system applied to grid-connected power supply of large-size civil buildings |
| CN203536974U (en) * | 2013-10-10 | 2014-04-09 | 国家电网公司 | Local distributed grid-connected photovoltaic power supply system |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2514092A (en) * | 2013-03-21 | 2014-11-19 | Sustainable Venture Dev Partners Ltd | Electrical energy storage device and system |
| GB2514092B (en) * | 2013-03-21 | 2017-11-29 | Powervault Ltd | Electrical energy storage device and system |
| US10630076B2 (en) | 2013-03-21 | 2020-04-21 | Powervault Limited | Electrical energy storage device and system |
| CN106054838A (en) * | 2016-06-24 | 2016-10-26 | 李俊桦 | Household power control energy-saving system |
| CN107819353A (en) * | 2017-10-30 | 2018-03-20 | 新克科技有限公司 | A kind of domestic solar is had more than needed reponse system |
| CN112787332A (en) * | 2021-03-04 | 2021-05-11 | 张晓光 | Point type self-generating self-power-utilization mutual feed system |
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Application publication date: 20140205 |