CN108092315A - A kind of exchange piconet networking system suitable for offshore wind farm consumption - Google Patents
A kind of exchange piconet networking system suitable for offshore wind farm consumption Download PDFInfo
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- 238000004146 energy storage Methods 0.000 claims description 6
- 239000000446 fuel Substances 0.000 claims description 6
- 230000006837 decompression Effects 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
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- 230000000977 initiatory effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 5
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- 230000000295 complement effect Effects 0.000 description 3
- 238000010248 power generation Methods 0.000 description 3
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Classifications
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- H02J3/386—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L55/00—Arrangements for supplying energy stored within a vehicle to a power network, i.e. vehicle-to-grid [V2G] arrangements
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- H02J13/0086—
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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
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
- H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
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- H02J3/383—
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- H02J3/387—
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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
- H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
- H02J3/388—Islanding, i.e. disconnection of local power supply from the network
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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
- 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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
- Y02T90/167—Systems integrating technologies related to power network operation and communication or information technologies for supporting the interoperability of electric or hybrid vehicles, i.e. smartgrids as interface for battery charging of electric vehicles [EV] or hybrid vehicles [HEV]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/12—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation
- Y04S10/126—Monitoring or controlling equipment for energy generation units, e.g. distributed energy generation [DER] or load-side generation the energy generation units being or involving electric vehicles [EV] or hybrid vehicles [HEV], i.e. power aggregation of EV or HEV, vehicle to grid arrangements [V2G]
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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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S30/00—Systems supporting specific end-user applications in the sector of transportation
- Y04S30/10—Systems supporting the interoperability of electric or hybrid vehicles
- Y04S30/14—Details associated with the interoperability, e.g. vehicle recognition, authentication, identification or billing
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Abstract
A kind of exchange piconet networking system suitable for offshore wind farm consumption, including：One exchange piconet networking system, at least one marine wind electric field, at least one large-capacity power converter, at least one step-up transformer, an ac bus I, a wind-powered electricity generation convey special line；The exchange piconet networking system, including：At least two exchange microgrid units, a system-level control centre；The marine wind electric field connects step-up transformer by large-capacity power converter, step-up transformer connects ac bus I, the ac bus I is connected with wind-powered electricity generation conveying special line, the wind-powered electricity generation conveying special line is connected with exchanging the exchange microgrid unit of piconet networking system, and the system-level control centre is connected with each microgrid unit that exchanges.A kind of exchange piconet networking system suitable for offshore wind farm consumption of the present invention, the problem of solving the problems, such as high-power wind turbine difficult consumption and electric vehicle network the impact influence of initiation on a large scale.
Description
Technical field
The invention belongs to micro-capacitance sensor technical fields, and in particular to a kind of exchange piconet networking suitable for offshore wind farm consumption
System.
Background technology
During seeking and developing the clean energy resource of alternative oil, wind-power electricity generation is generally recognised as effectively delaying by the whole world
Solve climate change, improve energy security, promote low-carbon economy increase effective scheme, therefore, wind-power electricity generation obtain national governments,
The highest attention of mechanism and enterprise etc..On the Chinese side, in Bureau of Energy's issue《Mesh is developed on regenerative resource is established
The instruction of system is led in index》In, the non-water power regenerative resource electricity ratio specified in Analyzing Total Electricity Consumption focuses on the year two thousand twenty
Reach 9%, wind electricity digestion ratio will reach more than 6%, and wherein fossil power plant undertakes non-hydro renewable sources power generation amount quota
Reach more than 15% with the proportion of thermoelectricity generated energy.In recent years, promoted in national policy and land wind-powered electricity generation abandons the excessively high background of wind rate
Under, the country starts to greatly develop offshore wind farm, and offshore wind farm is also for the coastal economy developed regions energy is promoted to make the transition
Important means.Offshore wind farm can should preferably meet the market demand, so close to power load center, conveniently situation
And high-power wind turbine consumption is always global problem, wind electricity digestion problem, which has become, restricts the lasting hair of China's wind-powered electricity generation health
The maximum stumbling-block of exhibition, the final and decisive juncture concerning Wind Power Development.In Wind Power Development planning, proposition adheres to that consumption is preferential, strengthens
Local use using proportion of the wind-powered electricity generation in energy-consuming as the important restrictions index for instructing each department energy development, is kept watch
Electricity consumption is adhered to exploitation is concentrated to utilize the original to develop simultaneously with scattered by the use of the horizontal basic foundation as Wind Power Generation implementation management
Then, optimize wind-powered electricity generation layout of buildings, energetically wind-powered electricity generation is promoted to utilize on the spot and nearby.So specifically how to implement offshore wind farm on the spot
How consumption disperses using high-power wind turbine resource, is urgent problem to be solved during Wind Power Development, and there is no at present preferably
Counter-measure.In addition, being made full use of to improve to new energy, in World Automobile Industry, development new energy vapour has also been started
The upsurge of vehicle.Various countries fully pay attention to the development and popularization and application of electric vehicle, and China is also using Development of EV as reply energy
Source, natural environment and climate change one of challenge, the optimal path for keeping sustainable development.However, greatly develop electric vehicle and
The problem of during implementing automobile industry Transformation Strategy, also running into many problems, removing electric vehicle itself and electric vehicle
Outside the problems such as charging and conversion electric auxiliary facility is unsound, it is necessary to pay attention to rushing power grid during electric vehicle charging and conversion electric load access power grid
It hits and influences, how to stabilize or eliminate the impact and influence that are brought during electric vehicle scale access power grid, be electric vehicle hair
Urgent problem to be solved in exhibition.For the problem, researcher proposes generation of electricity by new energy and electric automobile load being combined, simultaneously
It is placed in micro-capacitance sensor, preferentially supplies demand of the electric vehicle to electric energy using generation of electricity by new energy, in this way, cleaning can utilized
While the energy, influence of the electric vehicle to power grid can be reduced, however, for single micro-capacitance sensor, poor robustness runs inertia
It is small, low power distributed power generation or generation of electricity by new energy can only be dissolved, does not possess high-power offshore wind farm digestion capability.
The content of the invention
For it is existing the technical issues of, the present invention propose it is a kind of suitable for offshore wind farm consumption exchange piconet networking system
System, the problem of solving the problems, such as high-power wind turbine difficult consumption and electric vehicle network the impact influence of initiation on a large scale.
The technical solution that the present invention takes is：
A kind of exchange piconet networking system suitable for offshore wind farm consumption, including：
One exchange piconet networking system,
At least one marine wind electric field,
At least one large-capacity power converter,
At least one step-up transformer,
One ac bus I,
One wind-powered electricity generation conveys special line；
The exchange piconet networking system, including：
At least two exchange microgrid units,
One system-level control centre；
System-level control centre is used to coordinate the ratio of each microgrid unit consumption generation of electricity by new energy power, mainly by communication module
It is formed with data processing module, receives the quantity of state of each microgrid unit by communication module, then calculated by data processing module
Go out the dispatch command of each microgrid unit under current state, these dispatch commands are finally transferred to microgrid list by communication module
Member.
The marine wind electric field connects step-up transformer by large-capacity power converter, and step-up transformer connection exchange is female
Line I, the ac bus I are connected with wind-powered electricity generation conveying special line, exchange of the wind-powered electricity generation conveying special line with exchanging piconet networking system
Microgrid unit is connected, and the system-level control centre is connected with each microgrid unit that exchanges.
The exchange microgrid unit includes：
One step-down transformer,
One exchange microgrid being made of two breaker/switches and an AC/AC converter, a two-way AC/AC converter
Cell scheduling center,
One ac bus II,
At least one distributed generation unit,
At least one AC load,
At least two DC/AC converters,
At least two two-way AC/DC converters,
At least one AC/DC converters,
At least one fuel cell,
At least one photovoltaic generation unit,
At least one energy-storage system,
At least one electric vehicle charge and discharge stake,
At least one DC load；
The high-pressure side of the step-down transformer and wind-powered electricity generation conveying special line are connected, and the low-pressure side of step-down transformer and the first breaker/
Switch is connected；First breaker/switch one end is connected with step-down transformer, the first breaker/switch other end and AC/AC
The high-pressure side of converter is connected；The low-pressure side of the AC/AC converters is connected with ac bus II；
Second breaker/switch one end is connected with power grid, and the second breaker/switch other end is connected with two-way AC/AC converters,
Described two-way AC/AC converters one end is connected with the second breaker/switch, and two-way AC/AC converters opposite side is with exchanging mother
Line II is connected；
Distributed generation unit connects ac bus II, and the electric energy that the distributed generation unit is sent is incorporated to ac bus II
In；
AC load connects ac bus II, and the AC load obtains electric energy from ac bus II；
The fuel cell is connected by the first DC/AC converters with ac bus II；
Photovoltaic generation unit comprising at least one photovoltaic module is connected by the 2nd DC/AC converters with ac bus II；
The energy-storage system is connected by the first two-way AC/DC converters with ac bus II；
Pass through the second two-way AC/DC converters and ac bus II comprising at least one charge and discharge stake that can be charged for electric vehicle
It is connected；
DC load connects AC/DC converters, AC/DC converters connection ac bus II, and the DC load passes through AC/DC
Converter obtains electric energy from ac bus II.
The electric energy that marine wind electric field is sent after carrying out power converter by large-capacity power converter, becomes using boosting
Depressor boosts, then incoming transport busbar I, and conveys special line by wind-powered electricity generation, and electric energy is sent in exchange piconet networking system
Each exchange microgrid unit in, after step-down transformer is depressured, supply exchange microgrid unit.Exchanging piconet networking system will
Multiple exchange microgrid units in certain space carry out networking, improve power system capacity, group network system is made to possess powerful sea
Wind electricity digestion capability, therefore, for being sent to the wind-powered electricity generation of each exchange microgrid unit, system-level control centre is according to each exchange microgrid
Energy supply/demand in unit, decision-making go out whether wind-powered electricity generation accesses the exchange microgrid unit, when exchange microgrid unit self-energy supplies
When should not ask, then wind power integration is exchanged in microgrid unit, i.e., the wind-powered electricity generation first by wind-powered electricity generation conveying special line transmission passes through downconverter
Device makees decompression processing, then by controlling the breaker/switch being connected with step-down transformer, and combines the place of AC/AC converters
Reason, by wind power integration ac bus, with exchanging the power supply units such as distributed generation unit, photovoltaic generation unit in microgrid unit
Together, common each type load power supply in exchange microgrid unit.When exchanging the microgrid unit self-energy equilibrium of supply and demand, then the friendship
Stream microgrid unit does not access wind-powered electricity generation, and does not convey electric energy to bulk power grid, exchanges microgrid cell processing islet operation pattern.Work as exchange
Microgrid unit self-energy, then can be by controlling the open circuit being connected in exchange microgrid cell scheduling center with bulk power grid when drug on the market
Device/switch allows exchange microgrid cell operation that the excess energy exchanged in microgrid unit is passed through two-way AC/AC in grid-connect mode
Converter is incorporated to after carrying out power converter in bulk power grid.
The electric energy that marine wind electric field is sent, it is then defeated by wind-powered electricity generation by large-capacity power converter incoming transport busbar I
Send special line that electric energy is transmitted in each exchange microgrid unit in exchange piconet networking system；System-level control centre's root
Come whether the high-power offshore wind farm of decision-making accesses each exchange microgrid unit according to the energy supply/demand in each exchange microgrid unit, and
Instruction is assigned to exchange microgrid cell scheduling center；Each exchange microgrid cell scheduling center receives and implements system-level tune
The instruction that degree center is assigned, and according to the energy supply/demand inside exchange microgrid unit come the grid-connected of decision-making exchange microgrid unit
Operation or islet operation pattern；The wind-powered electricity generation conveys the electric energy of special line transmission after the step-down transformer decompression of end, then
It is controlled by exchanging breaker/switch in microgrid cell scheduling center, and passes through AC/AC converters and carry out power converter
Ac bus II is accessed afterwards；The exchange microgrid unit is by exchanging the conversion of the two-way AC/AC in microgrid cell scheduling center
Device and breaker/switch receive the electric energy of power grid input or export electric energy to power grid.
Compared to existing micro-capacitance sensor technical solution, a kind of exchange piconet networking suitable for offshore wind farm consumption of the present invention
System has the following advantages that：
1st, the present invention is resourceful for Oversea wind, near with load center distance, but when power is larger the problem of difficult consumption,
The wind power resources for concentrating exploitation are carried out disperseing consumption on the spot and nearby, solve sea turn by structure exchange piconet networking system
The problem of electric difficult consumption.
2nd, the present invention sets wind-powered electricity generation conveying special line, and ad hoc breaker/switch carries out special line and specially controls, and utilizes system-level scheduling
Center and the Multi-level Coordination scheduling controlling for exchanging microgrid cell scheduling center can improve wind-powered electricity generation using horizontal, reduction wind electricity digestion
The impact of system is influenced.
3rd, the present invention influences the impact of distribution using when providing multiple forms of energy to complement each other and solving the problems, such as electric vehicle scale access, also
It can be using the controllability of electric vehicle charge and discharge electric load come auxiliary energy Balance route.
4th, compared with existing exchange micro-capacitance sensor, direct-current grid or alternating current-direct current mixing micro-capacitance sensor, the present invention takes into full account
Offshore wind farm is resourceful, while the current conditions that coastal area is economically developed and more to electricity needs, suggests plans one
The multiple exchange microgrid units determined in spatial dimension carry out networking, if wind-powered electricity generation is sent to each exchange microgrid by wind-powered electricity generation conveying special line
In unit, then plan as a whole powerful offshore wind farm consumption path by system-level control centre；Finally exchange microgrid unit tune
Degree center receives and implements the instruction that system-level control centre is assigned, and passes through multi-source energy supply, the storage of balance exchange microgrid unit
Energy consumption condition can and be loaded, regulation and control keep the balancing energy in exchange microgrid unit.
5th, respectively in exchange microgrid unit comprising electric vehicle charge and discharge stake, in multilayer scheduling process, not only using more
The complementary impact influence come on distribution when solving the problems, such as electric vehicle scale access of energy, also coordinates control using charge and discharge stake
Balancing energy.
Description of the drawings
Fig. 1 is a kind of structural representation of one embodiment of exchange piconet networking system suitable for offshore wind farm consumption of the present invention
Figure.
Fig. 2 is the structure diagram for micro- one example of electric unit of exchange that the present invention is submitted in stream piconet networking system.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
As shown in Figure 1, a kind of exchange piconet networking system suitable for offshore wind farm consumption, including an exchange microgrid group
Net system 1, at least one marine wind electric field 2, at least one large-capacity power converter 3, at least one step-up transformer 4, one
Ac bus I, 5, wind-powered electricity generation convey special line 6；The exchange piconet networking system 1, including at least two exchange microgrids
Unit 7, a system-level control centre 8；The marine wind electric field 2 passes through large-capacity power converter 3 and step-up transformer 4
It is connected with ac bus I 5；The ac bus I 5 is connected with wind-powered electricity generation conveying special line 6；The wind-powered electricity generation conveying special line 6 is with handing over
The exchange microgrid unit 7 that stream piconet networking system 1 is included is connected；The system-level control centre 8 exchanges microgrid list with each
Member 7 is connected.
Exchange microgrid unit 7 shown in Fig. 2 is exactly the example for exchanging the exchange microgrid unit 7 in piconet networking system 1
Structure diagram, including a step-down transformer 9, one by the first breaker/switch 11, the second breaker/switch 12, AC/
The exchange microgrid cell scheduling center 10 of AC converters 13, two-way AC/AC converters 14 composition, an ac bus II 15, until
A few distributed generation unit 16, at least one AC load 17, at least two DC/AC converters：First DC/AC converters
18th, the 2nd DC/AC converters 20, at least two two-way AC/DC converters：First two-way AC/DC converters 23, second are two-way
AC/DC converters 25, at least one AC/DC converters 28, at least one fuel cell 19 are at least one to include photovoltaic module 21
Photovoltaic generation unit 22, at least one energy-storage system 24, it is at least one for electric vehicle 26 charge charge and discharge stake 27, until
A few DC load 29；The high-pressure side of the step-down transformer 9 is connected with wind-powered electricity generation conveying special line 6, and low-pressure side is disconnected with first
Road device/switch 11 is connected；First breaker/switch, 11 one end is connected with step-down transformer 9, and the other end becomes with AC/AC
The high-pressure side of parallel operation 13 is connected；The low-pressure side of the AC/AC converters 13 is connected with ac bus II 15；Described second is disconnected
Road device/12 one end of switch is connected with power grid 30, and the other end is connected with two-way AC/AC converters 14；The two-way AC/AC conversion
14 one end of device is connected with the second breaker/switch 12, and opposite side is connected with ac bus II 15；The distributed generation unit
16 electric energy sent are incorporated in ac bus II 15；The AC load 17 obtains electric energy from ac bus II 15；Described
Fuel cell 19 is connected by the first DC/AC converters 18 with ac bus II 20；Described includes at least one photovoltaic module
21 photovoltaic generation unit 22 is connected by the 2nd DC/AC converters 20 with ac bus II 15；The energy-storage system 24 is logical
The first two-way AC/DC converters 23 are crossed with ac bus II 15 to be connected；Described can fill comprising at least one for electric vehicle 26
The charge and discharge stake 27 of electricity is connected by the second two-way AC/DC converters 25 with ac bus II 15；The DC load 29 is logical
It crosses AC/DC converters 28 and obtains electric energy from ac bus II 15.
For the connection relation of Fig. 1 and Fig. 2, specifically, the wind-powered electricity generation conveying special line 6 in Fig. 1 and step-down transformer in Fig. 2
9 are connected, and the system call center 8 in Fig. 1 is connected with the microgrid cell scheduling center 10 that exchanges in Fig. 2.
In conclusion a kind of exchange piconet networking system suitable for offshore wind farm consumption that the present invention is carried, fully considers
And in offshore wind farm resource set, and the real feature nearer apart from load center, offshore wind farm is concentrated and is developed, passes through networking system
Each exchange microgrid unit in system disperses to dissolve nearby, and using providing multiple forms of energy to complement each other to cut down or counteract electric vehicle scale
The impact that access power grid is brought influences, meanwhile, the controllability of electric vehicle charging and conversion electric load is made full use of to realize exchange microgrid
It is adjusted in group network system with the balancing energy exchanged in microgrid unit, in addition, setting wind-powered electricity generation conveying special line, and passes through system-level scheduling
Impact shadow of the offshore wind farm consumption to power grid can be greatly reduced in center and the multilayer scheduling controlling for exchanging microgrid cell scheduling center
It rings, improves the controllability and stability of system.
The above-mentioned implementation example of the present invention is only example to illustrate the invention, and is not the reality to the present invention
Apply the restriction of mode.For those of ordinary skill in the art, other can also be made on the basis of the above description
Various forms of variations and variation.Here all embodiments can not be exhaustive.Every technical side for belonging to the present invention
Case changes and variations that derived from are still in the row of protection scope of the present invention.
Claims (4)
1. a kind of exchange piconet networking system suitable for offshore wind farm consumption, it is characterised in that including：
One exchange piconet networking system（1）,
At least one marine wind electric field（2）,
At least one large-capacity power converter（3）,
At least one step-up transformer（4）,
One ac bus I（5）,
One wind-powered electricity generation conveys special line（6）；
The exchange piconet networking system（1）, including：
At least two exchange microgrid units（7）,
One system-level control centre（8）；
The marine wind electric field（2）Pass through large-capacity power converter（3）Connect step-up transformer（4）, step-up transformer（4）Even
Connect ac bus I（5）, the ac bus I（5）Special line is conveyed with wind-powered electricity generation（6）It is connected, the wind-powered electricity generation conveys special line（6）With friendship
Flow piconet networking system（1）Exchange microgrid unit（7）It is connected, the system-level control centre（8）Microgrid unit is exchanged with each
（7）It is connected.
2. a kind of exchange piconet networking system suitable for offshore wind farm consumption according to claim 1, it is characterised in that：
The exchange microgrid unit（7）Including：
One step-down transformer（9）,
One by two breaker/switches and an AC/AC converter（13）, a two-way AC/AC converter（14）Composition
Exchange microgrid cell scheduling center（10）,
One ac bus II（15）,
At least one distributed generation unit（16）,
At least one AC load（17）,
At least two DC/AC converters,
At least two two-way AC/DC converters,
At least one AC/DC converters（28）,
At least one fuel cell（19）,
At least one photovoltaic generation unit（22）,
At least one energy-storage system（24）,
At least one electric vehicle charge and discharge stake（27）,
At least one DC load（29）；
The step-down transformer（9）High-pressure side and wind-powered electricity generation convey special line（6）It is connected, step-down transformer（9）Low-pressure side and the
One breaker/switch（11）It is connected；First breaker/switch（11）One end and step-down transformer（9）It is connected, the first open circuit
Device/switch（11）The other end and AC/AC converters（13）High-pressure side be connected；The AC/AC converters（13）Low-pressure side
With ac bus II（15）It is connected；
Second breaker/switch（12）One end and power grid（30）It is connected, the second breaker/switch（12）The other end and two-way AC/
AC converters（14）It is connected, the two-way AC/AC converters（14）One end and the second breaker/switch（12）It is connected, it is two-way
AC/AC converters（14）Opposite side and ac bus II（15）It is connected；
Distributed generation unit（16）Connect ac bus II（15）, the distributed generation unit（16）The electric energy sent is simultaneously
Enter ac bus II（15）In；
AC load（17）Connect ac bus II（15）, the AC load（17）From ac bus II（15）Obtain electricity
Energy；
The fuel cell（19）Pass through the first DC/AC converters（18）With ac bus II（15）It is connected；
Include at least one photovoltaic module（21）Photovoltaic generation unit（22）Pass through the 2nd DC/AC converters（20）With exchanging mother
Line II（15）It is connected；
The energy-storage system（24）Pass through the first two-way AC/DC converters（23）With ac bus II（15）It is connected；
It is electric vehicle comprising at least one energy（26）The charge and discharge stake of charging（27）Pass through the second two-way AC/DC converters（25）
With ac bus II（15）It is connected；
DC load（29）Connect AC/DC converters（28）, AC/DC converters（28）Connect ac bus II（15）,
The DC load（29）Pass through AC/DC converters（28）From ac bus II（15）Obtain electric energy.
3. the network-building method of exchange piconet networking system as claimed in claim 1 or 2, it is characterised in that：Marine wind electric field is sent
Electric energy, after carrying out power converter by large-capacity power converter, boost using step-up transformer, then incoming transport is female
Line I, and special line is conveyed by wind-powered electricity generation, electric energy is sent in each exchange microgrid unit in exchange piconet networking system, warp
After crossing step-down transformer decompression, supply exchange microgrid unit；Exchange piconet networking system multiple exchanges in certain space are micro-
Net unit carries out networking, improves power system capacity, group network system is made to possess powerful offshore wind farm digestion capability, therefore, for
Be sent to it is each exchange microgrid unit wind-powered electricity generation, system-level control centre according to it is each exchange microgrid unit in energy supply/demand,
Decision-making goes out whether wind-powered electricity generation accesses the exchange microgrid unit, when supply falls short of demand for exchange microgrid unit self-energy, then by wind power integration
It exchanges in microgrid unit, i.e., the wind-powered electricity generation first by wind-powered electricity generation conveying special line transmission makees decompression processing by step-down transformer, then passes through
Breaker/switch for being connected with step-down transformer is controlled, and combines the processing of AC/AC converters, by wind power integration ac bus,
It is common to give exchange microgrid list with exchanging together with the power supply units such as distributed generation unit, photovoltaic generation unit in microgrid unit
Each type load power supply in member；When exchanging the microgrid unit self-energy equilibrium of supply and demand, then the exchange microgrid unit does not access wind-powered electricity generation,
And electric energy is not conveyed to bulk power grid, exchange microgrid cell processing islet operation pattern；
It, then can be by controlling in exchange microgrid cell scheduling center and bulk power grid when exchanging microgrid unit self-energy drug on the market
Connected breaker/switch allows exchange microgrid cell operation to pass through the excess energy exchanged in microgrid unit in grid-connect mode
Two-way AC/AC converters are incorporated to after carrying out power converter in bulk power grid.
4. the method for supplying power to of exchange piconet networking system as claimed in claim 1 or 2, it is characterised in that：Marine wind electric field is sent
Electric energy, by large-capacity power converter incoming transport busbar I, special line is then conveyed by wind-powered electricity generation, electric energy is transmitted to exchange
In each exchange microgrid unit in piconet networking system；The system-level control centre is according to the energy in each exchange microgrid unit
Amount supply/demand comes whether the high-power offshore wind farm of decision-making accesses each exchange microgrid unit, and assigns instruction to exchange microgrid unit
Control centre；Each exchange microgrid cell scheduling center receives and implements the instruction that system-level control centre is assigned, and root
According to exchange microgrid unit inside energy supply/demand come decision-making exchange microgrid unit be incorporated into the power networks or islet operation pattern；Institute
The wind-powered electricity generation stated conveys the electric energy of special line transmission after the step-down transformer decompression of end, then by exchanging in microgrid cell scheduling
Intracardiac breaker/switch is controlled, and is passed through after AC/AC converters carry out power converter and accessed ac bus II；It is described
Exchange microgrid unit receive electricity by exchanging two-way AC/AC converters in microgrid cell scheduling center and breaker/switch
It nets the electric energy of input or exports electric energy to power grid.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758162A (en) * | 2019-12-06 | 2020-02-07 | 中达绿城交通科技有限公司 | Urban new energy traffic system with intelligent management function |
| CN113619428A (en) * | 2021-09-15 | 2021-11-09 | 阳光电源股份有限公司 | Electric automobile energy station |
| CN113783222A (en) * | 2020-06-09 | 2021-12-10 | 华龙国际核电技术有限公司 | Power generation method |
| WO2023049780A1 (en) * | 2021-09-22 | 2023-03-30 | Flexgen Power Systems, Inc. | Electrical systems and methods using high capacity local bus supported by energy storage |
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2018
- 2018-01-08 CN CN201810016302.6A patent/CN108092315A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110758162A (en) * | 2019-12-06 | 2020-02-07 | 中达绿城交通科技有限公司 | Urban new energy traffic system with intelligent management function |
| CN113783222A (en) * | 2020-06-09 | 2021-12-10 | 华龙国际核电技术有限公司 | Power generation method |
| CN113619428A (en) * | 2021-09-15 | 2021-11-09 | 阳光电源股份有限公司 | Electric automobile energy station |
| CN113619428B (en) * | 2021-09-15 | 2023-08-15 | 阳光电源股份有限公司 | Electric automobile energy station |
| WO2023049780A1 (en) * | 2021-09-22 | 2023-03-30 | Flexgen Power Systems, Inc. | Electrical systems and methods using high capacity local bus supported by energy storage |
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