CN208062793U - Marine wind electric field combines hair power supply system with island microgrid - Google Patents
Marine wind electric field combines hair power supply system with island microgrid Download PDFInfo
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- CN208062793U CN208062793U CN201820392003.8U CN201820392003U CN208062793U CN 208062793 U CN208062793 U CN 208062793U CN 201820392003 U CN201820392003 U CN 201820392003U CN 208062793 U CN208062793 U CN 208062793U
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Abstract
The utility model is related to a kind of the utility model marine wind electric fields to combine hair power supply system with island microgrid, marine wind electric field power grid including connecting continental Grid, connect several first kind island microgrids of marine wind electric field power grid, and several second class island microgrids of connection first kind island microgrid；Marine wind electric field power grid includes at least two power generation transmission of electricity modules；Power generation transmission of electricity module includes transmission of electricity module, electricity generation module；The one end for module of transmitting electricity connects continental Grid by the first single busbar, the other end is separately connected corresponding electricity generation module, first kind island microgrid by sectionalized busbar, it is that numerous island microgrids carry out power interconnection to enable the utility model marine wind electric field to combine hair power supply system with island microgrid using the power transmission network of marine wind electric field, ensure island power supply reliability and economy, the investment of extra large cable construction is greatly reduced.
Description
Technical field
The utility model is related to island power supply technical fields, join more particularly to a kind of marine wind electric field and island microgrid
Close hair power supply system.
Background technology
More than 300 ten thousand km of China2(sq-km) coastal areas and territorial seas is dispersed with a islands and reefs up to ten thousand, wherein area is more than 500m2(square
Rice) island more than 6500, have resident population on a island more than 400.In April, 2011, National Bureau of Oceanography announced first batch of 176 of China
For the non inhabitation islands register of exploitation, scientific development athermal effect prelude is formally pulled open, indicates that China's economic development will be moved towards
Ocean and the exploitation for focusing more on marine resources and remote island.
Currently, there are mainly three types of modes for the supply of electric power on remote island：(1) fuel-firing gas-firing power plant is built on island, with
Diesel-driven generator or small gas unit are as power generating source；(2) it is built with wind-powered electricity generation, photovoltaic, diesel-driven generator/micro- on island
Gas turbine, energy storage etc. are the island microgrid power supply system of micro battery；(3) it uses and continent power interconnection mode.
But during realization, inventor has found that at least there are the following problems in traditional technology：First way, combustion
Oily plant gas generating efficiency is low, fuel supply is inconvenient, and can be damaged to environment；The second way, wind-powered electricity generation and photovoltaic are only
Electric energy supplement can be used as, it is still desirable to using diesel-driven generator/micro- gas turbine as main power source；The third mode, due to sea
It is very high to be individually for remote island construction submarine cable power supply cost for bottom cable constructions somewhat expensive.
Utility model content
Based on this, it is necessary to the problem of cannot being supported mutually for traditional technology marine wind electric field and island microgrid, carry
Combine hair power supply system with island microgrid for a kind of marine wind electric field.
To achieve the goals above, an embodiment of the present invention provides a kind of marine wind electric fields combines hair confession with island microgrid
Electric system, includes the marine wind electric field power grid of connection continental Grid, and several first kind islands for connecting marine wind electric field power grid are micro-
Power grid, and connect several second class island microgrids of first kind island microgrid；
Marine wind electric field power grid includes at least two power generation transmission of electricity modules；Power generation transmission of electricity module includes transmission of electricity module, power generation
Module；The one end for module of transmitting electricity connects continental Grid by the first single busbar, and the other end is separately connected correspondence by sectionalized busbar
Electricity generation module, first kind island microgrid.
First kind island microgrid includes first kind island step-down transformer, first kind sea in one of the embodiments,
Island load blocks, the second single busbar and third single busbar；
One end of first kind island step-down transformer connects the second single busbar, the other end connects first by third single busbar
Class island load blocks；
Second single busbar connects the second class island by the first submarine cable connection segment busbar, by the second submarine cable
Micro-capacitance sensor.
First kind island microgrid further includes power generator in one of the embodiments,；
Power generator connects third single busbar, first kind island load blocks.
Power generator includes connecting island wind turbine power generation unit, the diesel oil of third single busbar in one of the embodiments,
Generator unit and photovoltaic generation unit；Diesel generation unit, photovoltaic generation unit are separately connected first kind island load blocks.
Island microgrid further includes energy-storage module in one of the embodiments,；
Energy-storage module connects power generator, first kind island load blocks and third single busbar.
Unite in one of the embodiments, first kind island step-down transformer be 35kV/10kV types step-down transformer or
35kV/400V type step-down transformers.
The second class island microgrid includes the second class island step-down transformer, the second class sea in one of the embodiments,
Island load blocks, the 4th single busbar and the 5th single busbar；
One end of second class island step-down transformer connects the 4th single busbar, the other end connects second by the 5th single busbar
Class island load blocks；
4th single busbar connects the second single busbar by third submarine cable.
Electricity generation module includes Wind turbines unit in one of the embodiments,；
Wind turbines unit connects transmission of electricity module by sectionalized busbar.
Transmission of electricity module includes main transformer in one of the embodiments,；
One end of main transformer connects continental Grid by the first single busbar, and the other end is separately connected pair by sectionalized busbar
The Wind turbines unit answered, first kind island microgrid.
Main transformer is 220kV/35kV type main transformers in one of the embodiments,.
A technical solution in above-mentioned technical proposal has the following advantages that and advantageous effect：
First kind island microgrid is attached with marine wind electric field, the second class island microgrid and first kind island are micro-
Power grid is attached, realize island microgrid combine with marine wind electric field hair powers so that the utility model marine wind electric field and
Island microgrid joint hair power supply system can be that numerous island microgrids carry out networking confession using the power transmission network of marine wind electric field
Electricity ensures island power supply reliability and economy, the investment of extra large cable construction is greatly reduced；Island microgrid can be used as in turn
The deferrable load of marine wind electric field so that the operation of marine wind electric field is more flexible, and the peak-frequency regulation convenient for meeting power grid is wanted
It asks, and island microgrid also can be used as the emergency auxiliary power of marine wind electric field, to reduce the diesel oil hair of marine wind electric field
The configuration of motor, to reduce equipment investment.
Description of the drawings
By being more particularly described for the preferred embodiment of the present invention shown in attached drawing, above and other mesh of the invention
, feature and advantage will become more fully apparent.Identical reference numeral indicates identical part in whole attached drawings, and does not carve
Meaning draws attached drawing by actual size equal proportion scaling, it is preferred that emphasis is shows the purport of the present invention.
Fig. 1 is the structure that the utility model marine wind electric field combines hair power supply system with island microgrid in one embodiment
Schematic diagram；
Fig. 2 is the structural schematic diagram of island microgrid in the utility model in one embodiment；
Fig. 3 is the structural schematic diagram of island microgrid in the utility model in another embodiment；
Fig. 4 is the structural schematic diagram of island microgrid in the utility model in another embodiment；
Fig. 5 is that the utility model marine wind electric field combines the electrical of hair power supply system with island microgrid in one embodiment
Wiring diagram.
Specific implementation mode
The utility model is more fully retouched below with reference to relevant drawings for the ease of understanding the utility model,
It states.The preferred embodiment of the utility model is given in attached drawing.But the utility model can in many different forms come in fact
It is existing, however it is not limited to embodiment described herein.Make public affairs to the utility model on the contrary, purpose of providing these embodiments is
It is more thorough and comprehensive to open content.
It should be noted that when an element is considered as " connection " another element, it can be directly to separately
One element and it is in combination be integrated, or may be simultaneously present centering elements.It is term as used herein " one end ", " another
One end " and similar statement are for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is led with the technology for belonging to the utility model
The normally understood meaning of technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.Term " and or " used herein includes
Any and all combinations of one or more relevant Listed Items.
In order to solve the problems, such as that traditional technology marine wind electric field cannot be supported mutually with island microgrid, Fig. 1 is a reality
The structural schematic diagram that the utility model marine wind electric field in example combines hair power supply system with island microgrid is applied, as shown in Figure 1, this
Utility model marine wind electric field combines hair power supply system with island microgrid and provides a kind of marine wind electric field and island microgrid
Joint hair power supply system embodiment 1, includes the marine wind electric field power grid 120 of connection continental Grid 110, connects marine wind electric field
Several first kind island microgrids 130 of power grid 120, and connect several second classes island of first kind island microgrid 130
Micro-capacitance sensor 140；
Marine wind electric field power grid 120 includes at least two power generation transmission of electricity modules 122；Power generation transmission of electricity module 122 includes transmission of electricity
Module 1224, electricity generation module 1222；The one end for module 1224 of transmitting electricity connects continental Grid 110 by the first single busbar 150, separately
One end is separately connected corresponding electricity generation module 1222, first kind island microgrid 130 by 160 section wiring of sectionalized busbar.
Wherein, first kind island microgrid is identical in electric network composition with the second class island microgrid, can be according to island
The height for the cost that micro-capacitance sensor is directly connected to marine wind electric field, two class island microgrids are divided by island microgrid, wherein
First kind island microgrid is closer apart from marine wind electric field, low with the cost that marine wind electric field is directly connected to；Second class island is micro-
Power grid farther out, is directly connected to of high cost apart from marine wind electric field with marine wind electric field, passes through first kind sea closer with distance
Island micro-capacitance sensor is directly connected to, and is equivalent to the second class island microgrid and is indirectly connected with offshore wind farm by first kind island microgrid
?.And independent power generation is realized on island.
Module of transmitting electricity is the electricity for generating electricity generation module, carries out integration and voltage transformation, then exports electric energy to big
Land power grid or island microgrid.Electricity generation module can convert wind energy into electric energy.
Each power grid can (be referred to continental Grid, the micro- electricity of marine wind electric field power grid and island in the utility model by single busbar
Net) in inlet-outlet line be flowed in single busbar, realize the interconnection between each power grid.Wherein sectionalized busbar is using single busbar point
The section mode of connection, one power generation transmission of electricity module of each section of connection.
Specifically, the utility model marine wind electric field, which combines hair power supply system with island microgrid, has following four work
Operation mode：
(1) marine wind electric field and island microgrid independently power generation mode.
In this mode, the connection of marine wind electric field and continental Grid is closed, the company of marine wind electric field and island microgrid
Connect disconnection.The electric energy that electricity generation module is sent out sends out submarine cable through the first single busbar after module of transmitting electricity and accesses continental Grid.
At this point, island microgrid is in isolated power grid pattern, the connection with marine wind electric field disconnects.It can be by certainly on island
Main power generation meets the power demand in a short time on island.The island microgrid Energy Management System by configuring in this mode
Energy compatibility control is carried out, it is the load power supply on island to form stable isolated power network.
(2) marine wind electric field is connected with island microgrid, from marine wind electric field to island microgrid powering mode.
In this mode, the connection of marine wind electric field and continental Grid is closed, and marine wind electric field is connected with island microgrid
Connection be closed.When the electric energy that marine wind electric field is sent out is more than island microgrid workload demand, electric energy that electricity generation module is sent out
After being connected to transmission of electricity module, a part is sent through 35kV (kilovolt) connection island extra large cables to island microgrid, remaining electric energy is logical through module of transmitting electricity
High-voltage undersea cable is crossed to send to continental Grid.When the electric energy that marine wind electric field is sent out is less than island microgrid workload demand, greatly
The electric energy of land power grid is sent out extra large cable through high pressure and is sent to transmission of electricity module, is depressurized to after 35kV together with the electric energy that electricity generation module is sent out
Join island extra large cable by 35kV to power for island microgrid.
Island microgrid is in the pattern that is incorporated into the power networks, and the connection with marine wind electric field is closed.Autonomous power generating unit on island
As cold standby power supply, do not put into operation.
(3) marine wind electric field is connected with island microgrid, is powered from marine wind electric field to island microgrid, island microgrid
Deferrable load pattern as marine wind electric field.
In this mode, marine wind electric field needs to participate in the peak-frequency regulation of continental Grid, the electric energy that marine wind electric field is sent out
It is more than to have access to the sum of continental Grid capacity and micro-capacitance sensor base load capacity in certain stage.It needs to configure in this mode
It can carry out coordinating the Energy Management System of control to marine wind electric field and island microgrid.
The connection of marine wind electric field and continental Grid is closed, and marine wind electric field is closed with the connection that island microgrid is connected.
Island microgrid is in the pattern that is incorporated into the power networks, and the connection with marine wind electric field is closed.Autonomous power generating unit is as cold standby on island
With power supply, do not put into operation.
When continental Grid needs marine wind electric field to participate in peak-frequency regulation, the grid connection capacity of marine wind electric field need to meet power grid
Scheduling requirement, at this point, the electric energy that sends out of marine wind electric field be more than scheduling requirement capacity and island microgrid base load capacity it
With.The power generation capacity of marine wind electric field is such as limited by shutting down electricity generation module mode, it will cause the discarded of clean energy resource.?
Under the pattern 3 of the utility model, island microgrid can regard the adjustable load of marine wind electric field as, by the energy pipe uniformly configured
Reason system is instructed according to dispatching of power netwoks, coordinates control marine wind electric field and the deferrable load in island microgrid and energy storage device,
By adjustable power load using the extra electric energy of marine wind electric field, extra electric energy can be also stored in energy storage device.The pattern
Offshore wind farm clean energy resource can be utilized to greatest extent, make maximization of economic benefit.
(4) marine wind electric field is connected with island microgrid, and marine wind electric field is disengaged with bulk power grid, and island microgrid is as sea
The emergency standby power of upper wind power plant provides emergency power supply pattern from island microgrid to marine wind electric field.
Under the pattern, marine wind electric field is due to typhoon or sends out extra large cable failure and continental Grid disengagement, at this time electricity generation module
It can not generate electricity, the connection of marine wind electric field and island microgrid is closed.
The connection of island microgrid and marine wind electric field is closed.Autonomous power generating unit puts into operation on island, the micro- electricity in island
The electric energy that net is sent out is sent through 35kV connection island extra large cables to transmission of electricity module sectionalized busbar, in addition to meeting island internal loading and needing for sea
Wind power plant provides station electricity consumption and emergency power supply.
It should be noted that the junction of each power grid is fitted with electric switch.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, and first kind island is micro-
Power grid is attached with marine wind electric field, and the second class island microgrid is attached with first kind island microgrid, realizes island
Micro-capacitance sensor combines hair power supply with marine wind electric field so that the utility model marine wind electric field combines hair power supply system with island microgrid
System can utilize the power transmission network of marine wind electric field be numerous island microgrids carry out power interconnection, ensure island power supply reliability with
The investment of extra large cable construction is greatly reduced in economy；Island microgrid can be used as the deferrable load of marine wind electric field in turn, make
Marine wind electric field operation it is more flexible, convenient for meet power grid peak-frequency regulation requirement, and island microgrid can also be made
For the emergency auxiliary power of marine wind electric field, to reduce marine wind electric field diesel-driven generator configuration, to reduce equipment
Investment, and the system that continental Grid, island microgrid and marine wind electric field are constituted has four kinds of operating modes, be continent electricity
It realizes between net, island microgrid and marine wind electric field and supports mutually, continental Grid, island microgrid and marine wind electric field can
More preferably, safer operation.
In a specific embodiment, Fig. 2 is that the structure of island microgrid in the utility model in one embodiment is shown
It is intended to, as shown in Fig. 2, first kind island microgrid includes first kind island step-down transformer, first kind island load blocks, the
Two single busbars and third single busbar；
One end of first kind island step-down transformer connects the second single busbar, the other end connects first by third single busbar
Class island load blocks；
Second single busbar connects the second class island by the first submarine cable connection segment busbar, by the second submarine cable
Micro-capacitance sensor.
Further, first kind island step-down transformer is that 35KV/10KV types step-down transformer or 35KV/400V types drop
Pressure transformer.
Wherein, first kind island step-down transformer can by by marine wind electric field electrical grid transmission Lai voltage, handled through decompression,
Input island microgrid.Third single busbar converges in the first kind island load blocks on island on one single busbar.It is optional
, first kind island step-down transformer can select 35KV/10KV types step-down transformer or 35KV/400V (volt) according to actual needs
Type step-down transformer,
Specifically, electric energy is transferred to first kind island downconverter by marine wind electric field power grid by the second single busbar
Device, the first kind island step-down transformer voltage of input is depressured after by electric energy by third single busbar be first kind island
Power load modules.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, utilizes marine wind electric field
Power transmission network be embodied as numerous island power interconnections, ensure island power supply reliability and economy, extra large cable construction be greatly decreased
Investment.
In a specific embodiment, Fig. 3 is the structure of island microgrid in the utility model in another embodiment
Schematic diagram, as shown in figure 3, first kind island microgrid further includes power generator；
Power generator connects third single busbar, first kind island load blocks.
Further, power generator include connect the island wind turbine power generation unit of third single busbar, diesel generation unit with
And photovoltaic generation unit；Diesel generation unit, photovoltaic generation unit are separately connected first kind island load blocks.
Specifically, building power generator on island, island independent power generation can be realized, further, power generator point
For island wind turbine power generation unit, diesel generation unit, photovoltaic generation unit and micro- gas turbine.Island wind turbine power generation unit,
Diesel generation unit, photovoltaic generation unit are incorporated to third single busbar.
First kind island load blocks include normal load, important load, tunable load.Diesel generation unit and micro- combustion
Gas-turbine can directly be important load supplying；Normal load and tunable load can be obtained electric energy by third single busbar, also led to
Cross photovoltaic cells power supply.
It should be noted that island wind turbine power generation unit, diesel generation unit, photovoltaic generation unit and micro- gas turbine
Electricity can boost through first kind island step-down transformer, be transferred to marine wind electric field power grid.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, and auxiliary construction island is micro-
Power grid builds generator unit, diesel generation unit, photovoltaic generation unit and micro- gas turbine on island so that island supplies
Electricity is relatively reliable flexibly, can both realize and power with marine wind electric field grid network, also can be independently-powered in extra large cable failure, and
The honourable resource on island can be made full use of, the utilization rate of clean energy resource is improved.
In a specific embodiment, Fig. 4 is the structure of island microgrid in the utility model in another embodiment
Schematic diagram, as shown in figure 4, island microgrid further includes energy-storage module；
Energy-storage module connects power generator, first kind island load blocks and third single busbar.
Specifically, auxiliary construction energy-storage module in island microgrid, in electric energy abundance, energy-storage module can store richness
Remaining electric energy is as emergency power；When island microgrid failure or electricity shortage, energy-storage module can supply temporarily
Electricity.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, matches in island microgrid
Set builds energy-storage module, improves island microgrid Ability of emergency management.
In a specific embodiment, the second class island microgrid includes the second class island step-down transformer, the second class sea
Island load blocks, the 4th single busbar and the 5th single busbar；
One end of second class island step-down transformer connects the 4th single busbar, the other end connects second by the 5th single busbar
Class island load blocks；
4th single busbar connects the second single busbar by third submarine cable.
Specifically, the second class sea island micro-grid structure is identical as first kind sea island micro-grid structure, details are not described herein again.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, is embodied as numerous islands
Micro-capacitance sensor joint power supply.
In a specific embodiment, electricity generation module includes Wind turbines unit；
Wind turbines unit connects transmission of electricity module by sectionalized busbar.
Further, transmission of electricity module includes main transformer；
One end of main transformer connects continental Grid by the first single busbar, and the other end is separately connected pair by sectionalized busbar
The Wind turbines unit answered, first kind island microgrid.
Further, main transformer is 220KV/35KV type main transformers.
Specifically, marine wind electric field includes multigroup wind turbine unit, wherein each Wind turbines unit converts wind energy into
Electric energy converges via main transformer, and boosts and be transferred to continental Grid, island microgrid.Preferably, main transformer is optional
220KV/35KV type main transformers.
The utility model marine wind electric field combines hair each embodiment of power supply system, marine wind electric field and sea with island microgrid
Island micro-capacitance sensor coordinates well, and good support is provided for island microgrid power supply.
In a preferred embodiment, Fig. 5 is the utility model marine wind electric field and the micro- electricity in island in one embodiment
The electric hookup of net joint hair power supply system, as shown in figure 5,
Specifically, offshore boosting station (transmission of electricity module) builds wind-powered electricity generation field marine at sea, voltage class with flat form
For 220kV.
Offshore boosting station send electric energy to land through 2 times 220kV seabed photoelectric composite cables (L1, L2), is controlled through land collection
Continental Grid is accessed behind center.
Offshore boosting station sets the main transformer (TM1, TM2) of two 220kV/35kV.The sides 220kV use single bus scheme
(M101), totally 2 times main transformer inlet wires (103,104), 2 return back out line (101,102).The sides 35kV using single-trunk segmental wiring (M201,
M202).Wind turbines (G1, G2) access 35kV busbares after collecting through 35kV current collections extra large cable (L4, L5).
Island microgrid is connected through 35kV connection island extra large cables (L3, L6) with offshore boosting station, and multiple island microgrids can be distinguished
It is connected on 2 sections of 35kV busbares (M201, M202).Each islands Hui Lian extra large cable can be one or more island power supplies.
Island microgrid sets 1 step-down transformer (TM3), and micro-capacitance sensor voltage grade can be according to micro-capacitance sensor scale selection
10kV or 400V.When connection island extra large cable is an island power supply, the sides 35kV use line change group mode；When for multiple island power supplies,
The sides 35kV use single bus scheme (M203), other island microgrids of connection to be connected to 35kV busbares through submarine cable (L7).
It should be noted that marine wind electric field power grid, which combines hair power supply system with island microgrid, has following 4 kinds operations
Pattern：
(1) marine wind electric field and island microgrid independently power generation mode.
In this mode, the 220kV switches that marine wind electric field power grid is connected with continental Grid are closed (101,102), marine
The 35kV switches (203,206) that wind farm is connected with island microgrid disconnect.The electric energy that blower motor group is sent out is through sea
Booster stations collect boosting after through high pressure send out submarine cable access continental Grid.
Island microgrid is in isolated power grid pattern, and the 35kV switches (207) being connected with marine wind electric field power grid disconnect.
The power generation of burning voltage frequency can be provided with the diesel-driven generator, micro- gas turbine, energy storage device etc. that are configured in island microgrid
Equipment is powered as main power source, and island wind turbine and photovoltaic system also access island microgrid system.Island microgrid is in the pattern
The lower Energy Management System by configuring carries out energy compatibility control, and it is that the load on island supplies to form stable isolated power network
Electricity.
(2) marine wind electric field is connected with island microgrid, from marine wind electric field to island microgrid powering mode
In this mode, the 220kV switches that marine wind electric field power grid is connected with network system are closed (101,102), marine
The 35kV switches (203,206) that wind farm is connected with island microgrid are closed.When the electric energy that marine wind electric field is sent out is more than
When island microgrid workload demand, after electric energy that blower motor group is sent out is connected to offshore boosting station, a part is through 35kV connection island sea
Cable is sent to island microgrid, remaining electric energy is sent by high-voltage undersea cable to waiting for continental Grid after main transformer boosts.Work as sea turn
When the electric energy that electric field is sent out is less than island microgrid workload demand, the electric energy of continental Grid is sent out extra large cable through high pressure and is sent to sea
Booster stations send 35kV connection island extra large cables to power for island microgrid after being depressurized to 35kV together with the electric energy that blower motor group is sent out.
Island microgrid is in the pattern that is incorporated into the power networks, and the 35kV switches (207) being connected with marine wind electric field power grid are closed.
The diesel-driven generator that is configured in island microgrid, micro- gas turbine do not put into operation as cold standby power supply；Island wind turbine and light
Lie prostrate system access island microgrid system；Energy-storage system can choose whether to put into according to actual demand.
(3) marine wind electric field is connected with island microgrid, is powered from marine wind electric field to island microgrid, island microgrid
Deferrable load pattern as marine wind electric field.
In this mode, marine wind electric field power grid needs to participate in the peak-frequency regulation of continental Grid, what marine wind electric field was sent out
Electric energy is more than to have access to the sum of continental Grid capacity and island microgrid base load capacity in certain stage.Under the pattern
The Energy Management System that can carry out coordinating control to marine wind electric field power grid and island microgrid need to be configured.
The 220kV switches that marine wind electric field power grid and continental Grid are connected are closed (101,102), marine wind electric field power grid with
The 35kV switches (203,206) that island microgrid is connected are closed.
Island microgrid is in the pattern that is incorporated into the power networks, and the 35kV switches (207) being connected with marine wind electric field are closed.Island is micro-
The diesel-driven generator that is configured in power grid, micro- gas turbine do not put into operation as cold standby power supply；Island wind turbine and photovoltaic system
Access island microgrid system；Energy-storage system can choose whether to put into according to actual demand.Island microgrid construction is just like seawater
Adjustable power load such as desalination, hydrogen manufacturing.
When continental Grid needs marine wind electric field power grid to participate in peak-frequency regulation, the grid connection capacity of marine wind electric field power grid needs
Meet continental Grid scheduling requirement, at this point, the electric energy that marine wind electric field can be sent out is more than scheduling requirement capacity and the micro- electricity in island
The sum of net base load capacity.The power generation capacity of marine wind electric field is such as limited by shutting down wind turbine mode, it will cause to clean
The energy is discarded.The utility model in this mode, island microgrid can regard the adjustable load of marine wind electric field as, by
The Energy Management System of unified configuration is instructed according to dispatching of power netwoks, is coordinated adjustable in control marine wind electric field and island microgrid
Load and energy storage device, by adjustable power load using the extra electric energy of marine wind electric field, extra electric energy can be also stored in
In energy device.The pattern can utilize offshore wind farm clean energy resource to greatest extent, make maximization of economic benefit.
(4) marine wind electric field is connected with island microgrid, and marine wind electric field is disengaged with bulk power grid, and island microgrid is as sea
The emergency standby power of upper wind power plant provides emergency power supply pattern from island microgrid to marine wind electric field.
In this mode, marine wind electric field power grid due to typhoon or sends out extra large cable failure and continental Grid disengagement, at this time wind
Machine can not generate electricity, and the 35kV switches (203,206) being connected with island microgrid are closed.
The 35kV switches (207) that island microgrid is connected with marine wind electric field power grid are closed.The diesel oil hair configured in island
The stabilized power sources such as motor, micro- gas turbine put into operation；Island wind turbine and photovoltaic system access island microgrid system；Energy storage system
System can choose whether to put into according to actual demand.The electric energy that island microgrid is sent out is in addition to meeting island internal loading and needing, through 35kV
Connection island extra large cable is sent to offshore boosting station 35kV busbares, and station electricity consumption and emergency power supply are provided for marine wind electric field.
The utility model marine wind electric field combines hair each embodiment of power supply system with island microgrid, and island microgrid can be made
It can be made by building deferrable load (such as sea water desalination, hydrogen manufacturing) in island microgrid for the deferrable load of marine wind electric field
The operation for obtaining marine wind electric field is more flexible, and convenient for meeting the peak-frequency regulation requirement of power grid, and island microgrid can be used as sea
The emergency auxiliary power of upper wind power plant reduces equipment investment and boosting to reduce the configuration of offshore boosting station diesel-driven generator
It stands steel using amount.When marine wind electric field loses contact with main power grid during typhoon, island microgrid can power to offshore boosting station,
Wind turbine is provided to combat typhoon yaw and variable pitch power supply.
Each technical characteristic of embodiment described above can be combined arbitrarily, to keep description succinct, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, it is all considered to be the range of this specification record.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But therefore it can not be interpreted as the limitation to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The scope of protection of the utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.
Claims (10)
1. a kind of marine wind electric field combines hair power supply system with island microgrid, which is characterized in that including connection continental Grid
Marine wind electric field power grid connects several first kind island microgrids of the marine wind electric field power grid, and connection described first
Several second class island microgrids of class island microgrid；
The marine wind electric field power grid includes at least two power generation transmission of electricity modules；Power generation transmission of electricity module include transmission of electricity module,
Electricity generation module；One end of the transmission of electricity module connects the continental Grid by the first single busbar, and the other end passes through sectionalized busbar
It is separately connected the corresponding electricity generation module, the first kind island microgrid.
2. marine wind electric field according to claim 1 combines hair power supply system with island microgrid, which is characterized in that described
First kind island microgrid includes first kind island step-down transformer, first kind island load blocks, the second single busbar and
Three single busbars；
One end of first kind island step-down transformer connects second single busbar, the other end passes through the third single busbar
Connect first kind island load blocks；
Second single busbar connects the sectionalized busbar by the first submarine cable, and described the is connected by the second submarine cable
Two class island microgrids.
3. marine wind electric field according to claim 2 combines hair power supply system with island microgrid, which is characterized in that described
First kind island microgrid further includes power generator；
The power generator connects the third single busbar, first kind island load blocks.
4. marine wind electric field according to claim 3 combines hair power supply system with island microgrid, which is characterized in that described
Power generator includes connecting island wind turbine power generation unit, diesel generation unit and the photovoltaic generation list of the third single busbar
Member；The diesel generation unit, the photovoltaic generation unit are separately connected first kind island load blocks.
5. marine wind electric field according to claim 3 combines hair power supply system with island microgrid, which is characterized in that described
Island microgrid further includes energy-storage module；
The energy-storage module connects the power generator, first kind island load blocks and the third single busbar.
6. the marine wind electric field according to claim 2 to 5 any one combines hair power supply system with island microgrid, special
Sign is that first kind island step-down transformer is 35KV/10KV types step-down transformer or 35KV/400V type downconverters
Device.
7. marine wind electric field according to claim 6 combines hair power supply system with island microgrid, which is characterized in that described
Second class island microgrid includes the second class island step-down transformer, the second class island load blocks, the 4th single busbar and the
Five single busbars；
One end of second class island step-down transformer connects the 4th single busbar, the other end passes through the 5th single busbar
Connect second class island load blocks；
4th single busbar connects second single busbar by third submarine cable.
8. marine wind electric field according to claim 1 combines hair power supply system with island microgrid, which is characterized in that described
Electricity generation module includes Wind turbines unit；
The Wind turbines unit connects the transmission of electricity module by the sectionalized busbar.
9. marine wind electric field according to claim 8 combines hair power supply system with island microgrid, which is characterized in that described
Module of transmitting electricity includes main transformer；
One end of the main transformer connects the continental Grid by the first single busbar, and the other end passes through the sectionalized busbar point
The corresponding Wind turbines unit, the first kind island microgrid are not connected.
10. marine wind electric field according to claim 9 combines hair power supply system with island microgrid, which is characterized in that institute
It is 220KV/35KV type main transformers to state main transformer.
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| CN201820392003.8U CN208062793U (en) | 2018-03-21 | 2018-03-21 | Marine wind electric field combines hair power supply system with island microgrid |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233371A (en) * | 2018-03-21 | 2018-06-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Marine wind electric field combines hair electric power system with island microgrid |
| CN111900759A (en) * | 2020-07-09 | 2020-11-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind driven generator and diesel generator cooperative control method and system |
-
2018
- 2018-03-21 CN CN201820392003.8U patent/CN208062793U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233371A (en) * | 2018-03-21 | 2018-06-29 | 中国能源建设集团广东省电力设计研究院有限公司 | Marine wind electric field combines hair electric power system with island microgrid |
| CN111900759A (en) * | 2020-07-09 | 2020-11-06 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore wind driven generator and diesel generator cooperative control method and system |
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