CN106451525A - Application method and device for wind-solar complementary grid-connected generation on same piece of land - Google Patents
Application method and device for wind-solar complementary grid-connected generation on same piece of land Download PDFInfo
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- CN106451525A CN106451525A CN201610328860.7A CN201610328860A CN106451525A CN 106451525 A CN106451525 A CN 106451525A CN 201610328860 A CN201610328860 A CN 201610328860A CN 106451525 A CN106451525 A CN 106451525A
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- 230000000295 complement effect Effects 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000005611 electricity Effects 0.000 claims abstract description 67
- 238000004804 winding Methods 0.000 claims abstract description 57
- 238000010276 construction Methods 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims description 25
- 230000010354 integration Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 abstract 1
- 238000011161 development Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002699 waste material 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
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
- H02J3/1821—Arrangements for adjusting, eliminating or compensating reactive power in networks using shunt compensators
-
- H02J3/386—
-
- 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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
-
- 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
-
- 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
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Engineering & Computer Science (AREA)
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- Business, Economics & Management (AREA)
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Abstract
The invention provides an application method for wind-solar complementary construction and simultaneous grid-connected generation on the same piece of land. According to the technical content of improvement, a photovoltaic power station is planned and constructed by using space land between arranged fans in a large wind farm; a double split winding boosting transformer is used for a main transformer of a wind power and photovoltaic booster station, a high-voltage side is connected with a power grid, the capacity of a winding at the high-voltage side is shared by wind power and photovoltaic power, the capacities of two split windings on a low-voltage side are used for connection of the wind power and the photovoltaic power respectively and a wind power collecting circuit is isolated from a photovoltaic collecting circuit; and a dynamic reactive power compensation device is arranged on a high-voltage side bus of the booster station and the compensation principle is designed as a whole according to the common demands of the wind power and the photovoltaic power. According to the application method and device, the technical problems of complementary construction of the wind power and the photovoltaic power on the same piece of land and sharing of one set of grid-connected system are solved; the utilization rate of the land and power grid equipment is improved; the wind power is isolated from the photovoltaic power by the double split winding transformer; separate electricity measurement is achieved; short-circuit current is reduced; and the reliability of a grid-connected generation system is improved.
Description
Technical field
The present invention relates to wind light mutual complementing construction and technical field of generating electricity by way of merging two or more grid systems, be specifically related to a kind of in same soil windward
The complementary application process built and generate electricity by way of merging two or more grid systems simultaneously of light, the invention still further relates to wind-solar complementary type on a kind of same soil grid-connected
TRT.
Background technology
At present, adjacent high-capacity wind power plant and photovoltaic plant use two independent boosting grid-connected systems, because wind-powered electricity generation
Different with owner's unit of photovoltaic project, construction sequential, rate for incorporation into the power network, there is the obstacle of technology and management layer, it is impossible to close two
It is one.
Wind energy belongs to the low-density energy, and Large Scale Wind Farm Integration floor space is very big, and land utilization ratio is very low, state-owned does not utilizes soil
Suddenly reducing of ground will become the bottleneck of restriction new forms of energy sustainable development.The identical wind energy turbine set floor space of installed capacity is light
5 ~ 10 times of overhead utility, utilize the space land development photovoltaic plant between blower fan arrangement to be feasible so inventor thinks.
Plan wind energy turbine set and photovoltaic plant simultaneously on same soil, or utilize built wind energy turbine set gap to build photovoltaic plant, energy
It is enough greatly enhanced land utilization ratio, increase new energy development capacity.
Meanwhile, wind-powered electricity generation and photovoltaic generation annual utilization hours are low, and substantially between 1000 ~ 2500 hours, and the two is same
When full capacity generating probability little, if sharing a set of boosting grid-connected system, can be greatly improved the utilization rate of equipment, reducing electricity
The waste of net resource, saves the investment of electricity power enterprise.
Therefore, the grid-connected system of boosting that can simultaneously meet wind-powered electricity generation and photovoltaic generation and online of research and design complete set
System, for improve new forms of energy can development capacity, improve grid equipment utilization rate and electric power station operation and management there is important reality meaning
Justice.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of wind light mutual complementing construction and simultaneously simultaneously on same soil
The application process of net generating；The invention solves the problems that another technical problem is to provide wind-solar complementary type on a kind of same soil
Generate electricity by way of merging two or more grid systems application apparatus.And then solve wind-powered electricity generation and photovoltaic on same soil complementary build and share a set of grid-connected system with
The problem of Shi Fa electricity.
It is as follows that the present invention solves the technical scheme that above-mentioned first technical problem takes：A kind of honourable mutual on same soil
Reconstruct the application process setting and generating electricity by way of merging two or more grid systems simultaneously, it is characterised in that improved technology contents is：
（1）, utilize Large Scale Wind Farm Integration inner blower arrangement between space soil, planning construction photovoltaic plant；
（2）, double division winding step-up transformers are applied to wind-powered electricity generation and the main transformer of photovoltaic booster stations, high-pressure side connects electricity
Net, on high-tension side coil volume is wind-powered electricity generation and photovoltaic is public, and the capacity of low-pressure side two division winding gives wind-powered electricity generation and photovoltaic respectively
Access use, wind-powered electricity generation and photovoltaic are collected circuit isolation；
（3）, dynamic reactive compensation device is installed in the high-voltage side bus of booster stations, compensation principle is according to meeting wind-powered electricity generation and photovoltaic
Joint demand overall planning.
It is as follows that the present invention solves the technical scheme that above-mentioned second technical problem takes：Wind light mutual complementing on a kind of same soil
Type generates electricity by way of merging two or more grid systems application apparatus, including the photovoltaic array of the blower fan of wind energy turbine set, photovoltaic plant, wind-powered electricity generation collection electric line, wind-power low-voltage
Side bus, photovoltaic collection electric line, photovoltaic low-pressure side bus, step-up transformer, high-voltage side bus, dynamic reactive compensation device with upper
Netting twine road；It is characterized in that：The photovoltaic array of photovoltaic plant is arranged in the space plot between the blower fan of wind energy turbine set, step-up transformer
For double Split winding transformers；High-voltage side bus is connected to the high-pressure side of double division winding step-up transformer, and wind-power low-voltage side is female
Line, photovoltaic low-pressure side bus are connected to low-pressure side two the division winding of double division winding step-up transformer；Dynamic reactive
Compensation device is connected to high-voltage side bus.
The present invention is directed to the problem that wind light mutual complementing construction and shared a set of grid-connected system generate electricity by way of merging two or more grid systems on same soil,
A set of grid-connected system is built and shared to be applicable to wind-powered electricity generation and the photovoltaic complementation on same soil that propose complete set together
The technical scheme of Shi Fa electricity, by the space land development photovoltaic plant between the arrangement of Large Scale Wind Farm Integration inner blower, it is achieved wind
Electricity and complementation in terms of soil for the photovoltaic share, and improve the utilization ratio of soil and grid equipment；Double division windings rise buckling
The on high-tension side coil volume of depressor is wind-powered electricity generation and photovoltaic shares, it is achieved wind-powered electricity generation and photovoltaic are in the high-pressure side capacity side of boosting main transformer
The complementation in face is public；Double Split winding transformer is used to isolate wind-powered electricity generation and photovoltaic, the low pressure of double division winding step-up transformers
Side two division winding collects wind-powered electricity generation and photovoltaic respectively, it is achieved that separate because rate for incorporation into the power network is different metering, reduce short circuit current and
Two kinds of power supplys play mutual voltage support effect when breaking down, and reduce reactive compensation capacity and the mesh reduced investment outlay
Mark, also improves the reliability of grid-connected system.By dynamic reactive compensation device is moved to the high-voltage side bus of booster stations,
Optimizing compensation principle, it is achieved the complementation in terms of reactive compensation capacity of wind-powered electricity generation and photovoltaic is public, also improving generates electricity by way of merging two or more grid systems is
The reliability of system.
Details are as follows with technique effect for the innovative point of the present invention：
First, it is proposed that wind light mutual complementing construction mode.It is known that according to routine, the soil between the blower fan of wind energy turbine set is in
Idle state, between the arrangement of Large Scale Wind Farm Integration inner blower, idle soil is a lot.Owing to the present invention utilizes the soil of some relatively flats
Ground planning construction photovoltaic plant, it is achieved the complementation in terms of soil of wind-powered electricity generation and photovoltaic is public, by increasing capacitance it is possible to increase be equivalent to wind-powered electricity generation installation
The photovoltaic installed capacity of several times of capacity, drastically increases land utilization efficiency.
Secondly, double division winding step-up transformer is applied at booster stations.By convention, new energy power station uses double winding
Transformer, high and low pressure side coil volume is monopolized by class new forms of energy.Owing to the present invention uses double division winding step-up transformer, high
Pressure side coil volume is wind-powered electricity generation and photovoltaic shares, it is achieved wind-powered electricity generation and the photovoltaic complementary public affairs in terms of the high-pressure side capacity of boosting main transformer
With；Low-pressure side two division winding collects wind-powered electricity generation and photovoltaic respectively, and the two passes through transformer isolation, has possessed electricity and has separated metering
Condition；Keeping electrical link further through transformer, under a kind of power down mode, another power supply is still normally sent out simultaneously
Electricity, can play the safety of voltage support effect, beneficially blower fan and photovoltaic DC-to-AC converter, tides over low voltage crossing process, thus
Improve the reliability of grid-connected system.
Then, make use of the impedance operator advantage of double Split winding transformer.According to routine, two winding step-up transformers
High pressure is identical with low pressure coil volume, sees Fig. 3；Double division two coil volume of winding step-up transformer low voltage side are high-pressure side
The half of capacity, and two winding fanout operations, see Fig. 4；Therefore, to identical high voltage winding pool-size, double division winding masters
The low-pressure side impedance of transformer is equivalent to the twice of two winding step-up transformers, effectively reduces wind-powered electricity generation and photovoltaic collection bus
Short circuit current.
In addition, change the infield of dynamic reactive compensation device, optimize compensation principle.By mending dynamic reactive
Repaying device and moving to the high-voltage side bus of booster stations, reactive compensation capacity, according to the public consideration of wind-powered electricity generation and photovoltaic, reduces idle benefit
Repay capacity, save equipment investment.
Brief description
Fig. 1 is the wind-solar complementary type grid-connected system general structure schematic diagram of the present invention；
Fig. 2 generates electricity by way of merging two or more grid systems application apparatus schematic diagram for using the wind-solar complementary type of double Split winding transformer；
Fig. 3 is two-winding transformer schematic equivalent circuit；
Fig. 4 is double Split winding transformer schematic equivalent circuits.
In figure：The blower fan of 1 wind energy turbine set, the photovoltaic array of 2 photovoltaic plants, the 3 box primary substations of wind-powered electricity generation, 4
The box primary substation of photovoltaic, 5 wind-powered electricity generation collection electric line, 6 photovoltaic collection electric line, 7 pairs of division winding step-up transformers,
8 dynamic reactive compensation devices, 9 electrical networks, 10 high-voltage side bus, 11 wind-power low-voltage side bus, 12 photovoltaic low-pressure sides
Bus, 13 online circuits, 14 high-pressure side winding impedance, 15 low-pressure side winding impedance, 16 low-pressure sides division windings the
One impedance, 17 low-pressure side division winding the second impedances.
Detailed description of the invention
Embodiment of the method；A kind of wind light mutual complementing construction and the application process simultaneously generating electricity by way of merging two or more grid systems, skill on same soil
Art content includes：
（1）, see Fig. 1：Utilize the space idle land between the arrangement of Large Scale Wind Farm Integration inner blower, planning construction photovoltaic plant；
I.e. build wind-powered electricity generation on same simultaneously and photovoltaic two kinds utilizes the power station of new forms of energy；
（2）, see Fig. 2：New energy power station uses double division winding step-up transformer, by double division winding step-up transformer application
In the main transformer of wind-powered electricity generation and photovoltaic booster stations, high-pressure side connects electrical network, and on high-tension side coil volume is wind-powered electricity generation and photovoltaic is public,
The capacity of low-pressure side two division winding gives the access use of wind-powered electricity generation and photovoltaic respectively, and wind-powered electricity generation and photovoltaic collect circuit isolation；
I.e. low-pressure side two division winding collects wind-powered electricity generation and photovoltaic respectively, by transformer isolation wind-powered electricity generation and photovoltaic, and common high voltage simultaneously
Side winding.
（3）, see Fig. 2：Dynamic reactive compensation device is installed in the high-voltage side bus of booster stations, and compensation principle is according to completely
The joint demand of foot wind-powered electricity generation and photovoltaic is considered as a whole, reduces total compensation capacity；Optimize compensation principle.
Device embodiment；As shown in Figures 1 and 2：On a kind of same soil, wind-solar complementary type generates electricity by way of merging two or more grid systems application apparatus,
Including the photovoltaic array of the blower fan of wind energy turbine set the 1st, photovoltaic plant the 2nd, wind-powered electricity generation collection electric line the 5th, wind-power low-voltage side bus the 11st, photovoltaic current collection
Circuit the 6th, photovoltaic low-pressure side bus the 12nd, step-up transformer, high-voltage side bus the 10th, dynamic reactive compensation device 8 and online circuit 13；
A plurality of wind-powered electricity generation collection electric line 5 is connected to wind-power low-voltage side bus 11, and a plurality of photovoltaic relay circuit 6 is connected to photovoltaic low-pressure side bus
12, the box primary substation of wind-powered electricity generation 3 is connected to wind-powered electricity generation collection electric line 5, and the box primary substation of photovoltaic 4 is connected to photovoltaic collection electric wire
Road 6；The photovoltaic array 2 of photovoltaic plant is arranged in the space plot between the blower fan 1 of wind energy turbine set, and step-up transformer is double division windings
Transformer 7；High-voltage side bus 10 is connected to the high-pressure side of double division winding step-up transformer 7, wind-power low-voltage side bus the 11st, photovoltaic
Low-pressure side bus 12 is connected to low-pressure side two the division winding of double division winding step-up transformer 7；Dynamic passive compensation
Device 8 is connected to high-voltage side bus 10.High-voltage side bus 10, booster stations are connected to electrical network 9 by circuit 13 of surfing the Net.
See Fig. 3 and Fig. 4：Two-winding transformer and double Split winding transformer equivalent circuit diagram, including rated capacity SN、
High-pressure side impedance X1, low-pressure side impedance X2, low-pressure side division winding the first impedance X21, low-pressure side division winding the second impedance X22；
Two-winding transformer high and low pressure side rated capacity SNIdentical, high-pressure side impedance X1With low-pressure side impedance X2Straight line connects；Double divisions
Winding transformer high-pressure side rated capacity SN, low-pressure side first, second divides winding rated capacity and is SN/ 2, high-pressure side impedance
X1Divide winding the first impedance X with low-pressure side21Divide winding the second impedance X with low-pressure side22Connect into hub-and-spoke configuration.
See Fig. 1：The blower fan 1 of wind energy turbine set is arranged in a linear, and the photovoltaic array 2 of photovoltaic plant is arranged in adjacent two exhaust blowers
Between 1.
Claims (3)
1. wind light mutual complementing construction and the application process simultaneously generating electricity by way of merging two or more grid systems on a same soil, it is characterised in that improved
Technology contents is：
（1）, utilize Large Scale Wind Farm Integration inner blower arrangement between space soil, planning construction photovoltaic plant；
（2）, double division winding step-up transformers are applied to wind-powered electricity generation and the main transformer of photovoltaic booster stations, high-pressure side connects electricity
Net, on high-tension side coil volume is wind-powered electricity generation and photovoltaic is public, and the capacity of low-pressure side two division winding gives wind-powered electricity generation and photovoltaic respectively
Access use, wind-powered electricity generation and photovoltaic are collected circuit isolation；
（3）, dynamic reactive compensation device is installed in the high-voltage side bus of booster stations, compensation principle is according to meeting wind-powered electricity generation and photovoltaic
Joint demand overall planning.
2. on same soil, wind-solar complementary type generates electricity by way of merging two or more grid systems an application apparatus, including the blower fan of wind energy turbine set, photovoltaic plant
Photovoltaic array, wind-powered electricity generation collection electric line, wind-power low-voltage side bus, photovoltaic collection electric line, photovoltaic low-pressure side bus, step-up transformer,
High-voltage side bus, dynamic reactive compensation device and online circuit；It is characterized in that：The photovoltaic array of photovoltaic plant（2）It is arranged in
The blower fan of wind energy turbine set（1）Between space plot, step-up transformer is double Split winding transformers（7）；High-voltage side bus（10）Even
It is connected to double division winding step-up transformer（7）High-pressure side, wind-power low-voltage side bus（11）, photovoltaic low-pressure side bus（12）Respectively
It is connected to double division winding step-up transformer（7）Low-pressure side two division winding；Dynamic reactive compensation device（8）It is connected to height
Pressure side bus（10）.
3. on same soil as claimed in claim 2 a kind of, wind-solar complementary type generates electricity by way of merging two or more grid systems application apparatus, it is characterised in that：
The blower fan of wind energy turbine set（1）It is arranged in a linear, the photovoltaic array of photovoltaic plant（2）It is arranged in adjacent two exhaust blowers（1）Between.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610328860.7A CN106451525A (en) | 2016-05-18 | 2016-05-18 | Application method and device for wind-solar complementary grid-connected generation on same piece of land |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610328860.7A CN106451525A (en) | 2016-05-18 | 2016-05-18 | Application method and device for wind-solar complementary grid-connected generation on same piece of land |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400603A (en) * | 2021-12-24 | 2022-04-26 | 国核电力规划设计研究院有限公司 | Integrated system of high-voltage power transmission and photovoltaic power generation and integrated design method |
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| CN205753445U (en) * | 2016-05-18 | 2016-11-30 | 中国能源建设集团甘肃省电力设计院有限公司 | On same soil, wind-solar complementary type generates electricity by way of merging two or more grid systems application apparatus |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114400603A (en) * | 2021-12-24 | 2022-04-26 | 国核电力规划设计研究院有限公司 | Integrated system of high-voltage power transmission and photovoltaic power generation and integrated design method |
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