CN106356890A - Distributed photovoltaic power generation-based power supply system for township power supply station - Google Patents
Distributed photovoltaic power generation-based power supply system for township power supply station Download PDFInfo
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- CN106356890A CN106356890A CN201610870471.7A CN201610870471A CN106356890A CN 106356890 A CN106356890 A CN 106356890A CN 201610870471 A CN201610870471 A CN 201610870471A CN 106356890 A CN106356890 A CN 106356890A
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- photovoltaic
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- power supply
- energy meter
- electric energy
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- 238000010248 power generation Methods 0.000 title claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 230000002452 interceptive effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 238000004146 energy storage Methods 0.000 claims description 3
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims description 3
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 3
- 229920005591 polysilicon Polymers 0.000 claims description 3
- 229910021417 amorphous silicon Inorganic materials 0.000 claims description 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 229910021419 crystalline silicon Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- H02J3/383—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The invention relates to the technical field of photovoltaic power generation, in particular to a distributed photovoltaic power generation-based power supply system for a township power supply station. A photovoltaic battery array is connected with a photovoltaic combiner box, wherein the photovoltaic combiner box is connected with a direct current power distribution cabinet which is connected with a charging and discharging controller, an inverter and a power supply station direct current load respectively; the charging and discharging controller is combined with a storage battery pack; the inverter is connected with a grid-connected electric energy meter; the grid-connected electric energy meter is connected with a grid-connected interface device; grid-connected switching equipment is arranged at the grid-connected interface device, and is connected with an alternating current power distribution cabinet which is connected with a gateway electric energy meter and a power supply station alternating current load. The system has the beneficial effects that energy-saving power generation can be realized to ensure normal operation of the township power supply station under the condition of limited resources of the township power supply station, and the system has the advantages of energy saving, environment friendliness, low cost, convenience for maintenance and the like.
Description
Technical field
The present invention relates to technical field of photovoltaic power generation, in particular to a kind of small towns based on distributed photovoltaic power generation
Power supply station's electric power system.
Background technology
Distributed photovoltaic power generation refers in particular to build near user place, and the method for operation is generated power for their own use with user side, unnecessary electricity
Amount online, and the photovoltaic generation facility being characterized in distribution system balance adjustment.Major advantage is: solves remote districts power supply and asks
Topic, the responsible consumer power supply reliability that improves, promotion energy-saving and emission-reduction and reduction system loss etc..The distribution being most widely used at present
Formula photovoltaic generating system, is the photovoltaic generation project building City Building roof in.And the area such as rural area, mountain area, pastoral area electric power
Relatively in short supply, power supply quality is relatively poor, a series of photovoltaic generation subsidy policy put into effect with country and government, and this will have
Help distributed photovoltaic power generation project in development from far-off regions.As each power supply station in the small towns being engaged in work about electric power, divide at present
Cloth photovoltaic power generation technology does not also apply to Township Merging.Nowadays, people require more and more higher to power supply quality, its
In, power supply station has a power failure will certainly affect its normal operation, thus leading to powerup issue in compass of competency can not solve in time, impact
Service level and power supply quality.In sum, Township Merging is powered be feasible using distributed photovoltaic power generation,
It is necessary.
Content of the invention
The technical problem to be solved in the present invention is in view of the shortcomings of the prior art, provides a kind of energy-conserving and environment-protective, cost
Township Merging electric power system based on distributed photovoltaic power generation low, easy to maintenance.
The technical scheme is that a kind of Township Merging electric power system based on distributed photovoltaic power generation, including light
Volt array, charging-discharging controller, inverter, grid connection interface device and low-voltage network.It is characterized in that: described photovoltaic
Array is connected with photovoltaic combiner box；Described photovoltaic combiner box is connected with DC power distribution cabinet；Described DC power distribution cabinet divides
It is not connected with charging-discharging controller, inverter and power supply station's DC load；Described charging-discharging controller is combined with accumulator battery,
Constitute energy-storage system；Described inverter is connected with grid-connected electric energy meter；Described grid-connected electric energy meter is connected with grid connection interface device；
It is provided with described grid connection interface device and grid-connected cut-off equipment；The described grid-connected equipment that cut-offs is connected with AC power distribution cabinet/AC distribution panel, described
AC power distribution cabinet/AC distribution panel be connected with energy metering electric energy meter and power supply station's AC load；Described energy metering electric energy meter is joined with low pressure
Electrical network connects.
Described photovoltaic battery array uses monocrystalline Silicon photrouics, polysilicon photovoltaic cells or amorphous silicon photovoltaic electricity
Pond, and it is arranged on the building roof surface of Township Merging.Described inverter is parallel networking type photovoltaic inverter.Described is grid-connected
Electric energy meter is used for photovoltaic generation charging and compensates, and energy metering electric energy meter is used for the upper and lower net electric quantity metering between user and electrical network.Institute
Charge information can be uploaded to operating management department by grid connection interface device by the energy metering electric energy meter stated.Described grid-connected open
Disconnected equipment should be provided with easy to operate, lockable, have and substantially cut-off instruction, possess the chopper cut-offfing fault current capability.
Beneficial effects of the present invention: the invention provides a kind of power supply based on the Township Merging of distributed photovoltaic power generation is
System, for a kind of energy-conservation supplement to Township Merging traditional electricity supply mode, can be in Township Merging by using this system
Limited resources and in the case of it is achieved that energy-saving power generation, it is ensured that the normal operation of Township Merging, has energy-conserving and environment-protective, cost
The advantages of low, easy to maintenance.
Brief description
Fig. 1 is electric power system schematic diagram of the present invention.
Wherein: 1, photovoltaic battery array；2nd, photovoltaic combiner box；3rd, DC power distribution cabinet；4th, charging-discharging controller；5th, accumulator
Group；6th, power supply station's DC load；7th, inverter；8th, grid-connected electric energy meter；9th, grid connection interface device；10th, grid-connected cut-off equipment；11、
AC power distribution cabinet/AC distribution panel；12nd, power supply station's AC load；13rd, energy metering electric energy meter；14th, low-voltage network.
Specific embodiment
Based on the Township Merging of distributed photovoltaic power generation powered a kind of to the present invention is with reference to the accompanying drawings and examples
System technical scheme is further described.
As shown in figure 1, the present invention is a kind of includes photovoltaic electric based on the Township Merging electric power system of distributed photovoltaic power generation
Pond array 1, charging-discharging controller 4, inverter 7, grid connection interface device 9 and low-voltage network 14, described photovoltaic battery array 1
Outfan is connected with photovoltaic combiner box 2 input, and photovoltaic combiner box 2 outfan is connected with DC power distribution cabinet 3 input, and direct current is joined
Electric cabinet 3 outfan is respectively with charging-discharging controller 4 input, inverter 7 input and power supply station's DC load 6 input even
Connect, charging-discharging controller 4 outfan and accumulator battery 5 connect and compose energy-storage system, inverter 7 outfan and grid-connected electric energy meter 8
Input connects, and grid-connected electric energy meter 8 outfan is connected with grid connection interface device 9 input, grid connection interface device 9 outfan and simultaneously
Net cut-offs equipment 10 input and connects, and grid-connected equipment 10 outfan that cut-offs is connected with AC power distribution cabinet/AC distribution panel 11 input, AC distribution
Cabinet 11 outfan is connected with energy metering electric energy meter 13 and power supply station's AC load 12 input, energy metering electric energy meter 13 with low
It is press-fitted electrical network 14 to connect.
Further, described DC power distribution cabinet 3 and charging-discharging controller 4 are interactive connection；Described AC power distribution cabinet/AC distribution panel
11 is interactive connection with energy metering electric energy meter 13, and described energy metering electric energy meter 13 is the company of interaction with low-voltage network 14
Connect.
Further, described photovoltaic battery array 1 adopts monocrystalline Silicon photrouics, polysilicon photovoltaic cells or non-crystalline silicon
Photovoltaic cell, and it is arranged on the building roof surface of Township Merging.
Further, described inverter 7 is parallel networking type photovoltaic inverter.
Further, described grid-connected electric energy meter 8 is used for photovoltaic generation charging compensation, and energy metering electric energy meter 13 is used for
Upper and lower net electric quantity metering between family and electrical network.
Further, charge information can be uploaded to operation by grid connection interface device by described energy metering electric energy meter 13
Administration section.
Further, the described grid-connected equipment 10 that cut-offs is provided with easy to operate, lockable, has and substantially cut-offs instruction, tool
The standby chopper cut-offfing fault current capability.
Operation principle: the Township Merging electric power system based on distributed photovoltaic power generation should pass through photovoltaic battery array 1 in fact
The electric current collecting is delivered to DC power distribution cabinet 3 by photovoltaic combiner box 2, on DC power distribution cabinet 3 by the conversion of existing solar energy to electrical
It is provided with accumulator battery 5, accumulator battery 5, by being used cooperatively with charging-discharging controller 4, is realized the management to energy, protected simultaneously
Card accumulator battery scientifically and rationally discharge and recharge.In addition, DC power distribution cabinet 3 exports to power supply station's DC load 6 and inverter 7 simultaneously
Unidirectional current.When no light or night, electric energy needed for power supply station's DC load 6 can pass through charging-discharging controller 4 by accumulator battery 5
There is provided.Inverter 7, according to grid requirements, is alternating current DC power conversion, passes sequentially through grid-connected electric energy meter 8 network interface dress
Put 9 and grid-connected cut-off equipment 10, AC energy is transported to AC power distribution cabinet/AC distribution panel 11, then distributes electric energy by AC power distribution cabinet/AC distribution panel 11,
Preferentially it is supplied with institute's AC load 12.If institute's generated energy can not meet power supply station's AC load 12 power load, by public
Low-voltage network 14 passes through energy metering electric energy meter 13 and AC power distribution cabinet/AC distribution panel 11 and conveys electric energy to it；If institute's generated energy has surplus
Remaining, then surfed the Net to common low pressure power distribution network 14, on-site elimination by energy metering electric energy meter 13.When no light or night, supply
Electric institute AC load 12 also can pass sequentially through charging-discharging controller 4, DC power distribution cabinet 3 and by the unidirectional current that accumulator battery 5 stores
Inverter 7 converts gained.
Embodiment described above is only that the preferred embodiment for the present invention is described, not to the design of the present invention and
Scope is defined, on the premise of without departing from design philosophy of the present invention, the technology to invention for the those skilled in the art
Various modifications and improvement that scheme is made, all should belong to protection scope of the present invention.
Claims (7)
1. a kind of Township Merging electric power system based on distributed photovoltaic power generation, automatically controlled including photovoltaic battery array (1), charge and discharge
Device (4) processed, inverter (7), grid connection interface device (9) and low-voltage network (14) it is characterised in that: described photovoltaic cell battle array
Row (1) outfan is connected with photovoltaic combiner box (2) input, photovoltaic combiner box (2) outfan and DC power distribution cabinet (3) input
Connect, DC power distribution cabinet (3) outfan is straight with charging-discharging controller (4) input, inverter (7) input and power supply station respectively
Current load (6) input connects, and charging-discharging controller (4) outfan and accumulator battery (5) connect and compose energy-storage system, inverter
(7) outfan is connected with grid-connected electric energy meter (8) input, grid-connected electric energy meter (8) outfan and grid connection interface device (9) input
Connect, grid connection interface device (9) outfan is connected with grid-connected equipment (10) input that cut-offs, grid-connected cut-off equipment (10) outfan
It is connected with AC power distribution cabinet/AC distribution panel (11) input, AC power distribution cabinet/AC distribution panel (11) outfan is handed over energy metering electric energy meter (13) and power supply station
Current load (12) input connects, and energy metering electric energy meter (13) is connected with low-voltage network (14).
2. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
The DC power distribution cabinet (3) stated and charging-discharging controller (4) are interactive connection；Described AC power distribution cabinet/AC distribution panel (11) and energy metering electricity
Can table (13) be interactive connection, described energy metering electric energy meter (13) is interactive connection with low-voltage network (14).
3. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
The photovoltaic battery array (1) stated adopts monocrystalline Silicon photrouics, polysilicon photovoltaic cells or amorphous silicon photovoltaic cell, and is arranged on
The building roof surface of Township Merging.
4. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
Stating inverter (7) is parallel networking type photovoltaic inverter.
5. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
The grid-connected electric energy meter (8) stated be used for photovoltaic generation charging compensate, energy metering electric energy meter (13) be used between user and electrical network,
Off line electric quantity metering.
6. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
Charge information can be uploaded to operating management department by grid connection interface device by the energy metering electric energy meter (13) stated.
7. the Township Merging electric power system based on distributed photovoltaic power generation according to claim 1 it is characterised in that: institute
The grid-connected equipment (10) that cut-offs stated is provided with easy to operate, lockable, has and substantially cut-offs instruction, possesses and cut-off fault current capability
Chopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870471.7A CN106356890A (en) | 2016-10-07 | 2016-10-07 | Distributed photovoltaic power generation-based power supply system for township power supply station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870471.7A CN106356890A (en) | 2016-10-07 | 2016-10-07 | Distributed photovoltaic power generation-based power supply system for township power supply station |
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| Publication Number | Publication Date |
|---|---|
| CN106356890A true CN106356890A (en) | 2017-01-25 |
Family
ID=57866606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610870471.7A Pending CN106356890A (en) | 2016-10-07 | 2016-10-07 | Distributed photovoltaic power generation-based power supply system for township power supply station |
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| Country | Link |
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| CN (1) | CN106356890A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203312826U (en) * | 2013-04-26 | 2013-11-27 | 武汉经开能源科技发展有限公司 | Photovoltaic intelligent whole grid power generation system |
| CN204243785U (en) * | 2014-12-19 | 2015-04-01 | 湖北追日电气股份有限公司 | A kind of distributed photovoltaic power generation micro-grid system |
| CN206226029U (en) * | 2016-10-07 | 2017-06-06 | 国网青海省电力公司海东供电公司 | A kind of Township Merging electric power system based on distributed photovoltaic power generation |
-
2016
- 2016-10-07 CN CN201610870471.7A patent/CN106356890A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203312826U (en) * | 2013-04-26 | 2013-11-27 | 武汉经开能源科技发展有限公司 | Photovoltaic intelligent whole grid power generation system |
| CN204243785U (en) * | 2014-12-19 | 2015-04-01 | 湖北追日电气股份有限公司 | A kind of distributed photovoltaic power generation micro-grid system |
| CN206226029U (en) * | 2016-10-07 | 2017-06-06 | 国网青海省电力公司海东供电公司 | A kind of Township Merging electric power system based on distributed photovoltaic power generation |
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Application publication date: 20170125 |
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