CN108808728A - A kind of wind power generation set grid-connection control method - Google Patents
A kind of wind power generation set grid-connection control method Download PDFInfo
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- CN108808728A CN108808728A CN201810523243.1A CN201810523243A CN108808728A CN 108808728 A CN108808728 A CN 108808728A CN 201810523243 A CN201810523243 A CN 201810523243A CN 108808728 A CN108808728 A CN 108808728A
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010248 power generation Methods 0.000 title claims abstract description 8
- 230000006855 networking Effects 0.000 claims abstract description 18
- 230000005611 electricity Effects 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 230000010354 integration Effects 0.000 claims description 2
- 230000009466 transformation Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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- H02J3/386—
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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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- Supply And Distribution Of Alternating Current (AREA)
Abstract
The present invention relates to a kind of wind power generation set grid-connection control methods, used system includes wind power generating set flexible interconnection network and control section two parts, parameter is sent to path control deivce by host computer, path control deivce outputs control signals to all routing switch, routing switch execution is connected or disconnected with other routing switch, it realizes and all input currents is integrated and are reallocated, and the parameters of electric power of flexible interconnection network is transmitted to host computer and is shown, to realize that wind power generating set interconnects, the flexible variety of feeder current size and current direction, all electric energy that wind power generating set flexible interconnection network is sent out finally are collected to networking wind power generating set, networking wind power generating set exports these electric energy to power grid, realize the grid-connected of all wind power generating sets in entire wind power generating set flexible interconnection network.
Description
Technical field
The present invention relates to wind power generation field, specially a kind of wind power generation set grid-connection control method.
Background technology
Electric power resource is people's daily life and is engaged in the essential part of industrial or agricultural activity, and is applied for a long time
Thermal power generating technology so that environmental pollution is increasingly serious, and non-renewable resources are increasingly deficient.Therefore, wind-power electricity generation etc. is new
Energy source utilizing electricity generating techn is rapidly developed in the time of last decade.The essence of wind-power electricity generation is by the wind energy transformation of nature
For can be directly to the electric energy that user uses.Therefore, the efficiency in each level of wind generating technology, enhancing wind-power electricity generation system are promoted
The reliability of system becomes the basis for expanding wind power plant scale.Only in this way, the generated energy of wind-power electricity generation can just be incrementally increased total
Ratio in generated energy, to achieve the purpose that reduce environmental pollution, alleviating energy crisis.
Existing wind power technology has the following disadvantages：(1) generating efficiency level is predominantly stayed in the promotion of efficiency, but sent out
The room for promotion of electrical efficiency is limited；(2) every wind power generating set is that bulk power grid is accessed in the form of individual, therefore, is resisted dry
It is poor to disturb ability；(3) every wind power generating set to the impact of bulk power grid and is affected when grid-connected.
Invention content
The present invention provides a kind of wind power generation set grid-connection control method, and all Wind turbines of entire wind power plant are connected
At a Wind turbines network, the Wind turbines that part is connected to power grid are provided only with, extremely by the electrical energy transportation in whole network system
Power grid enhances the reliability of wind power system to effectively promote power transmission efficiency.Technical scheme is as follows.
A kind of wind power generation set grid-connection control method, used system include wind power generating set flexible interconnection network
With control section two parts, two parts cooperate, and realize that entire wind power generating set flexible interconnection network collective is defeated to power grid
Electricity, the wind power generating set flexible interconnection network include more wind power generating sets, multiple routing switch and a plurality of feeder line,
Wherein,
The wind power generating set is generator unit, is the node of wind power generating set flexible interconnection network；Part wind-force
Generating set is networking wind power generating set；The networking wind power generating set is used for entire wind power generating set flexible interconnection
The electric energy that network is sent out is exported to power grid；The routing switch that networking wind power generating set is equipped with is equipped with the output being connected with power grid
End；
The routing switch is identical as wind power generating set number, and a routing conversion is equipped with per typhoon power generator group
Device, routing switch include input port, output port, wireless communication module, control module, integrate module, distribution module and
Current sensor, wherein wireless communication module are used for being communicated with the host computer of control section and path control deivce, to upper
Machine sends the parameters of electric power of wind power generating set flexible interconnection network, receives the control signal of path control deivce, and by this signal
Reach control module；Control module can send out instruction according to this signal, and then control distribution module；Module is integrated for will be from
All electric currents that input port flows into are overlapped, and further by electrical energy transportation to distribution module；Distribution module is according to control
The instruction execution of module redistributes work to electric energy；Current sensor is used to measure the electric current of every outlet line；Again
Electric energy after distribution flows out routing switch by output port；The electric energy that every wind power generating set is sent out only has access it
The input terminal of itself provisioned routing switch；
The feeder line is used to connect the input terminal and output end of different routing switch, is wind power generating set flexible interconnection
The side of network, all routing switch pass through feeder line and realize full connection, a routing in wind power generating set flexible interconnection network
The input terminal of converter can only connect the output end of another routing switch；
The control section includes host computer and path control deivce, and the host computer is used for setting wind power generating set flexibility
The network parameter of internet；The path control deivce can receive the information from host computer through wireless communication, and
Control signal is exported to all routing switch according to this information, and routing switch makes network flexibility become according to control signal execution
The action changed.
Use above system realize control method for：Parameter is sent to path control deivce, path control deivce by host computer
All routing switch are output control signals to, routing switch execution is connected or disconnected with other routing switch, realized
All input currents are integrated and are reallocated, and the parameters of electric power of flexible interconnection network is transmitted to host computer and is shown, from
And realize wind power generating set interconnection, feeder current size and current direction flexible variety, wind power generating set flexible interconnection
All electric energy that network is sent out finally are collected to networking wind power generating set, networking wind power generating set by these electric energy export to
Power grid realizes the grid-connected of all wind power generating sets in entire wind power generating set flexible interconnection network.
Compared with prior art, the beneficial effects of the invention are as follows：
1) Wind turbines for belonging to a wind power plant are connected into network by the system, will by interconnecting segment Wind turbines
The electric energy sent out in network system is exported to power grid, may be implemented by optimize flexible interconnection network topology structure, bonding strength,
The weight on side etc. promotes power transmission efficiency.
2) Wind turbines in the system access power grid after constituting network, can enhance the reliable of Wind turbines network system
Property and anti-interference.And only part Wind turbines are directly accessed power grid, therefore Wind turbines and off-network mistake can be effectively reduced
The impact and influence that journey generates power grid.
3) the design application of path control deivce and routing switch makes Wind turbines internet realize flexible interconnection, i.e.,
With the variation of time, the internal structure of the network and various features can change, specially the company between Wind turbines
Connecing can lead to and can break, and the size of current that feeder line conveys between a pair of of Wind turbines is variable, current direction is variable.
Description of the drawings
Fig. 1 is the overall structure figure for the wind power generating set flexible interconnection system that the present invention uses
Fig. 2 is the Wind turbines internet figure for the wind power generating set flexible interconnection system that the present invention uses
Fig. 3 is the commutator principle figure that the present invention uses
Fig. 4 is the routing switch figure that the present invention uses
Fig. 5 is the host computer display interface figure that the present invention uses
In figure：
1- Wind turbines flexible interconnection networks, 11- Wind turbines, 12- networking Wind turbines, 13- feeder lines；2- control units
Point, 21- host computers, 22- path control deivces, 23- routing switch.
Specific implementation mode
Complete description and explanation are purged to technical scheme of the present invention with reference to embodiment and its attached drawing, but simultaneously
Not in this, as the restriction of the application protection domain.
The present invention uses a kind of wind power generating set flexible interconnection system (referring to Fig. 1-5), including Wind turbines flexibility is mutually
Networking network 1 and control section 2, two parts are mutually coordinated, realize that the collective of Wind turbines network is grid-connected.
The Wind turbines flexible interconnection network 1 includes more Wind turbines 11, multiple routing switch 12 and a plurality of feedback
Line 13；The Wind turbines 11 are generator unit, input wind energy, export electric energy, are the sections of Wind turbines flexible interconnection network 1
Point；Include interconnecting segment Wind turbines 111 (being directly accessed power grid) in Wind turbines 11, the networking Wind turbines 111 can incite somebody to action
The electrical energy transportation that entire Wind turbines flexible interconnection network 1 is sent out is to power grid.The routing switch that Wind turbines 111 of networking are equipped with
12 set that there are one the output ends that are connected with power grid；
The routing switch 12 is identical as 11 number of Wind turbines, and every Wind turbines 11 are equipped with a routing switch
12, routing switch 12 by input port, output port, wireless communication module, control module, integrate module, distribution module and
Current sensor forms.Wherein wireless communication module is used for being led to the host computer 21 and path control deivce 22 of control section
Letter sends the parameters of electric power of Wind turbines flexible interconnection network 1 to host computer 21, receives the control signal of path control deivce 22,
And this signal is reached into control module.Control module can send out instruction according to this signal, and then control distribution module.Integrate mould
Block is used to all electric currents flowed into from input port being overlapped, and further by electrical energy transportation to distribution module.Distribute mould
Root tuber redistributes work according to the instruction execution of control module to electric current.Current sensor is used to measure every outlet line
Electric current.Electric energy after redistributing passes through output port stream routing switch 12.The electric energy that every Wind turbines 11 are sent out is only
The input terminal of its own provisioned routing switch 12 can be accessed.
The feeder line 13 is used to connect the input terminal and output end of different routing switch 12, is Wind turbines flexible interconnection
The side of network 1.
The control section 2 includes host computer 21 and path control deivce 22；The host computer 21 can set Wind turbines
The network parameter (including output electricity, network structure, transmission size of current and current direction) of flexible interconnection network, can show
The parameters of electric power of Wind turbines flexible interconnection network.The path control deivce 22 can receive the information of host computer 21, and accordingly
Information outputs control signals to all routing switch 12, and routing switch 12 makes network flexibility convert according to control signal execution
Action.Whole system cooperates, and realizes flexible interconnection and the energy output of Wind turbines.
All routing switch 12 in Wind turbines flexible interconnection network 1 realize the (routing of full connection by feeder line 13
The input terminal of converter 12 can only be connect with the output end of another routing switch 12).In actual work, staff is upper
The parameter of Wind turbines flexible interconnection network is set on the machine 21 of position, host computer 21 sends information to path control deivce 22.Routing
Information is output control signals to controller 22 accordingly and all routing switch 12, routing switch 12 execute and other routings
Converter 12 connects or disconnects action, realizes and carries out integration reallocation to all input currents, and by flexible interconnection network
Parameters of electric power be transmitted to host computer and shown.To realize 11 interconnection architecture of Wind turbines, feeder current size and electricity
Flow the flexible variety in direction.All electric energy that Wind turbines flexible interconnection network 1 is sent out, are finally collected to networking Wind turbines
111, networking Wind turbines 111 export these electric energy to power grid, realize all wind in entire Wind turbines flexible interconnection network 1
Motor group 11 it is grid-connected.
Claims (1)
1. a kind of wind power generation set grid-connection control method, used system include wind power generating set flexible interconnection network and
Control section two parts, two parts cooperate, and realize entire wind power generating set flexible interconnection network collective to grid power transmission,
The wind power generating set flexible interconnection network includes more wind power generating sets, multiple routing switch and a plurality of feeder line,
In,
The wind power generating set is generator unit, is the node of wind power generating set flexible interconnection network；Part wind-power electricity generation
Unit is networking wind power generating set；The networking wind power generating set is used for entire wind power generating set flexible interconnection network
The electric energy sent out is exported to power grid；The routing switch that networking wind power generating set is equipped with is equipped with the output end being connected with power grid；
The routing switch is identical as wind power generating set number, and a routing switch is equipped with per typhoon power generator group,
Routing switch includes input port, output port, wireless communication module, control module, integrates module, distribution module and electric current
Sensor, wherein wireless communication module are used for being communicated with the host computer of control section and path control deivce, are sent out to host computer
The parameters of electric power for sending wind power generating set flexible interconnection network receives the control signal of path control deivce, and this signal is reached
Control module；Control module can send out instruction according to this signal, and then control distribution module；Integration module is used for will be from input
All electric currents that port flows into are overlapped, and further by electrical energy transportation to distribution module；Distribution module is according to control module
Instruction execution work is redistributed to electric energy；Current sensor is used to measure the electric current of every outlet line；It redistributes
Electric energy afterwards flows out routing switch by output port；The electric energy that every wind power generating set is sent out only has access its own
The input terminal of provisioned routing switch；
The feeder line is used to connect the input terminal and output end of different routing switch, is wind power generating set flexible interconnection network
Side, all routing switch pass through feeder line and realize full connection, a routing conversion in wind power generating set flexible interconnection network
The input terminal of device can only connect the output end of another routing switch；
The control section includes host computer and path control deivce, and the host computer is used for setting wind power generating set flexible interconnection
The network parameter of network；The path control deivce can receive the information from host computer through wireless communication, and according to
This information exports control signal to all routing switch, and routing switch is executed according to control signal makes the transformation of network flexibility
Action.Use above system realize control method for：Parameter is sent to path control deivce, path control deivce output by host computer
Signal is controlled to all routing switch, routing switch execution is connected or disconnected with other routing switch, realized to institute
There is input current to integrate and reallocate, and the parameters of electric power of flexible interconnection network is transmitted to host computer and is shown, to real
Existing wind power generating set interconnection, feeder current size and current direction flexible variety, wind power generating set flexible interconnection network
All electric energy sent out are finally collected to networking wind power generating set, and networking wind power generating set exports these electric energy to electricity
Net realizes the grid-connected of all wind power generating sets in entire wind power generating set flexible interconnection network.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523243.1A CN108808728B (en) | 2018-05-28 | 2018-05-28 | Grid-connected control method for wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810523243.1A CN108808728B (en) | 2018-05-28 | 2018-05-28 | Grid-connected control method for wind generating set |
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| Publication Number | Publication Date |
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| CN108808728A true CN108808728A (en) | 2018-11-13 |
| CN108808728B CN108808728B (en) | 2021-04-20 |
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