CN107769264A - The control method of wind power generating set, device, system, wind electric converter - Google Patents
The control method of wind power generating set, device, system, wind electric converter Download PDFInfo
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- CN107769264A CN107769264A CN201711166863.6A CN201711166863A CN107769264A CN 107769264 A CN107769264 A CN 107769264A CN 201711166863 A CN201711166863 A CN 201711166863A CN 107769264 A CN107769264 A CN 107769264A
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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
- H02J3/40—Synchronising a generator for connection to a network or to another generator
- H02J3/44—Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
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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
- H02J3/01—Arrangements for reducing harmonics or ripples
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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
- H02J3/46—Controlling of the sharing of output between the generators, converters, or transformers
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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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention provides a kind of control method of wind power generating set, device, system, wind electric converter, this method includes：The carrier phase bias of each wind electric converter is determined respectively, and generates multiple carrier phase offset signals for carrying the carrier phase bias；Carrier phase reference signal is sent to the master controller of each wind electric converter；And send multiple carrier phase offset signals to the master controller of corresponding wind electric converter, so that the target carrier phase for the grid side electronic power switch that master controller determines each to control according to carrier phase reference signal and carrier phase offset signal.The embodiment of the present invention is controlled to the target carrier phase of more typhoon electric converters in target wind field, so that harmonic wave caused by grid side electronic power switch in each wind electric converter is cancelled out each other partly or entirely, reduce total harmonic wave of target wind field, even if not setting filter in grid side, it can also reach the effect for the quality of power supply for ensureing input power network.
Description
Technical field
The present invention relates to technical field of wind power generation, in particular to a kind of control method of wind power generating set, dress
Put, system, wind electric converter.
Background technology
At present, it is traditional coal, oil, natural with the rapid development of economy, the energy has become important strategic resource
Gas is the ability that non-renewable energy resources do not possess sustainable use, in the case where traditional energy is constantly reduced, with wind energy, too
Sun can wait becomes new selection for the new energy of representative, and new energy strategy has been also raised to a new height, wherein, especially
Extensive concern has been obtained with the utilization of wind energy and has been greatly developed.In wind-driven generator, wind energy is by impeller and leaf
Piece absorbs energy and is converted into the kinetic energy of the rotation of change, and the kinetic energy of rotation becomes voltage and frequency fluctuation by generator
Electric energy, the electric energy of change changed into wind electric converter into voltage and frequency meets the electrical energy transportation of power network specification to power network.
Wherein, wind electric converter is the power electronic equipment in wind power generating set, is mainly used in entering wind-driven generator
Row control, while be additionally operable to enter line interface with high-voltage fence.Because the power electronic devices of wind electric converter typically uses pulsewidth
The method output voltage of modulation, this method will produce the harmonic wave of the switching frequency of certain amplitude, in actual application, be
Prevent the harmonic wave pollution high voltage power network, it usually needs in the wave filter that grid side installation dimension is larger, cost is higher.
During the present invention is realized, inventor has found problems with least be present in correlation technique：In correlation technique
In order to reduce the harmonic wave of input high-voltage fence, it is necessary to every typhoon electric converter grid side, one volume is big for installation, cost is high
Wave filter, so as to there is the problem of equipment cost is high, equipment volume is big.
The content of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of control method of wind power generating set, device, is
System, wind electric converter, to solve the problems, such as to propose in background technology.
In a first aspect, the embodiments of the invention provide a kind of control method of wind power generating set, the wind-driven generator
Group includes：More typhoon power generators, more step-up transformers and the more typhoon electricity unsteady flows being arranged in same target wind field
Device, it is that every wind-driven generator is equipped with a step-up transformer and a wind electric converter, every wind
Electric converter includes：Master controller and the breaker being sequentially connected, grid side electronic power switch, motor side electric power electricity
Sub switch, generator protection device, the breaker access high-voltage fence, the generator protection by the step-up transformer
Device is connected with the wind-driven generator；The control method includes：
The carrier phase bias of each wind electric converter is determined respectively, and generates that multiple to carry the carrier phase inclined
The carrier phase offset signal of value is put, wherein, the carrier phase bias of every wind electric converter is different；
Carrier phase reference signal is sent to the master controller of each wind electric converter, wherein, the carrier wave phase
Position reference signal carries reference phase, and the reference phase of every wind electric converter is identical；And
Multiple carrier phase offset signals are sent to the master controller of the corresponding wind electric converter, with
The electricity for making the master controller determine each to control according to the carrier phase reference signal and the carrier phase offset signal
The target carrier phase of net side electronic power switch, wherein, the target carrier phase is the carrier phase reference signal pair
Carrier phase bias sum corresponding to the reference phase and the carrier phase offset signal answered.
With reference in a first aspect, the embodiments of the invention provide the possible embodiment of the first of first aspect, wherein, on
Before stating the carrier phase bias for determining each wind electric converter respectively, in addition to：Determine current in the target wind field
The quantity of the wind electric converter of operation；
The carrier phase bias for determining each wind electric converter respectively, including：Currently run according to described
The quantity of wind electric converter, the carrier wave of the grid side electronic power switch of each wind electric converter currently run is determined respectively
Phase bias value.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide second of first aspect
Possible embodiment, wherein, the quantity according to the wind electric converter currently run, determine respectively each described current
The carrier phase bias of the grid side electronic power switch of the wind electric converter of operation, including：
The wind electric converter currently run in the target wind field determined is numbered, it is determined that each described current
The sequence number of the wind electric converter of operation；
According to formulaThe grid side power electronics of each wind electric converter currently run is determined respectively
The carrier phase bias of switch；
Wherein, βkRepresent the carrier phase bias of the grid side electronic power switch of serial number k wind electric converter, N
The quantity of wind electric converter currently run in target wind field is represented, k represents the wind electric converter currently run in target wind field
Sequence number, k=0 ... i..., (N-1).
With reference to second of possible embodiment of first aspect, the embodiments of the invention provide the third of first aspect
Possible embodiment, wherein, the wind electric converter currently run in the described pair of target wind field determined is numbered,
It is determined that the sequence number of each wind electric converter currently run, including：
According to the relative position relation of each wind electric converter currently run in the target wind field, to each current fortune
Capable wind electric converter is ranked up；
The sequence number of each wind electric converter currently run in the target wind field is determined according to ranking results, wherein,
The difference between the carrier phase bias of adjacent wind electric converter meets preparatory condition two-by-two.
With reference to the first possible embodiment of first aspect, the embodiments of the invention provide the 4th of first aspect kind
Possible embodiment, wherein, the quantity of the wind electric converter for determining currently to run in the target wind field, including：
According to prefixed time interval, each wind electric converter in the target wind field is obtained by high-speed communication network
Running status；
According to the running status of each wind electric converter of acquisition, the number of the renewal wind electric converter currently run
Amount.
Any one of the 4th kind of possible embodiment with reference to first aspect to first aspect, the embodiment of the present invention provide
5th kind of possible embodiment of first aspect, wherein, the electricity of the more wind electric converters in the target wind field
The switching frequency of net side electronic power switch is identical.
Second aspect, the embodiment of the present invention additionally provide a kind of control device of wind power generating set, and the device includes：
Phase bias value determining module, for the load for each wind electric converter for determining to be arranged in same target wind field respectively
Wave phase bias, and multiple carrier phase offset signals for carrying the carrier phase bias are generated, wherein, described in every
The carrier phase bias of wind electric converter is different；
Carrier phase signal sending module, for sending carrier phase reference to the master controller of each wind electric converter
Signal, wherein, the carrier phase reference signal carries reference phase, the reference phase of every wind electric converter
It is identical；And
Multiple carrier phase offset signals are sent to the master controller of the corresponding wind electric converter, with
Make the master controller of the wind electric converter according to the carrier phase reference signal and the carrier phase offset signal
It is determined that the target carrier phase of the grid side electronic power switch each controlled, wherein, the target carrier phase is the load
Carrier phase bias sum corresponding to reference phase corresponding to wave phase reference signal and the carrier phase offset signal.
The third aspect, the embodiment of the present invention additionally provide a kind of wind electric converter, including：Master controller and connect successively
Breaker, grid side electronic power switch, motor side electronic power switch, the generator protection device connect, the breaker lead to
Step-up transformer access high-voltage fence is crossed, the generator protection device is connected with wind-driven generator；
The master controller, is used for：
The carrier phase reference signal that the control device of wind power generating set is sent is received, wherein, the carrier phase base
Calibration signal carries reference phase, and the reference phase of every wind electric converter is identical；And
The carrier phase offset signal that the control device of wind power generating set is sent is received, wherein, every wind-powered electricity generation becomes
The carrier phase bias carried in the carrier phase offset signal that stream device receives is different；
The grid side electricity for determining each to control according to the carrier phase reference signal and the carrier phase offset signal
The target carrier phase of power electronic switch, wherein, the target carrier phase is base corresponding to the carrier phase reference signal
Carrier phase bias sum corresponding to quasi- phase and the carrier phase offset signal.
With reference to the third aspect, the embodiments of the invention provide the possible embodiment of the first of the third aspect, wherein, if
The switching frequency of the grid side electronic power switch for the more wind electric converters being placed in same target wind field is identical.
Fourth aspect, the embodiment of the present invention additionally provide a kind of control system of wind power generating set, and the system includes：Wind
Power generator group, the control device as described in second aspect；
The wind power generating set includes：It is arranged at more typhoon power generators in same target wind field, more boostings become
Depressor and the more wind electric converters as described in the possible embodiment of the first of the third aspect or the third aspect, are every
Wind-driven generator described in platform is equipped with a step-up transformer and a wind electric converter；
The master control that the control device passes through each wind electric converter in fiber optic network and the wind power generating set
Device processed is connected.
, should in the control method of wind power generating set provided in an embodiment of the present invention, device, system, wind electric converter
Control method includes：The carrier phase bias of each wind electric converter is determined respectively, and is generated and multiple carried the carrier phase
The carrier phase offset signal of bias；Carrier phase reference signal is sent to the master controller of each wind electric converter；And will
Multiple carrier phase offset signals are sent to the master controller of corresponding wind electric converter, so that master controller is according to carrier phase
Reference signal and carrier phase offset signal determine the target carrier phase of the grid side electronic power switch each controlled.This hair
Bright embodiment is controlled to the target carrier phase of more typhoon electric converters in target wind field, so that each wind-powered electricity generation unsteady flow
Harmonic wave caused by grid side electronic power switch in device is cancelled out each other partly or entirely, reduces total harmonic wave of target wind field,
And then even if not setting filter in grid side, it can also reach the effect for the quality of power supply for ensureing input power network.
To enable the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by embodiment it is required use it is attached
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not construed as pair
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows a kind of flow signal of the control method for wind power generating set that one embodiment of the invention is provided
Figure；
Fig. 2 shows that the flow of the control method for another wind power generating set that another embodiment of the present invention is provided is shown
It is intended to；
Fig. 3 shows a kind of structural representation of the control device for wind power generating set that the embodiment of the present invention is provided；
Fig. 4 shows a kind of structural representation for wind electric converter that the embodiment of the present invention is provided；
Fig. 5 shows a kind of structural representation of the control system for wind power generating set that the embodiment of the present invention is provided.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
Middle accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only
It is part of the embodiment of the present invention, rather than whole embodiments.The present invention being generally described and illustrated herein in the accompanying drawings is real
Applying the component of example can be configured to arrange and design with a variety of.Therefore, it is of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the scope of claimed invention, but is merely representative of the selected reality of the present invention
Apply example.Based on embodiments of the invention, institute that those skilled in the art are obtained on the premise of creative work is not made
There is other embodiment, belong to the scope of protection of the invention.
In view of reduced in correlation technique input high-voltage fence harmonic wave, it is necessary to every typhoon electric converter power network
Side, a wave filter that volume is big, cost is high is installed, so as to there is the problem of equipment cost is high, equipment volume is big.Based on this,
One embodiment of the invention provides a kind of control method of wind power generating set, device, system, wind electric converter, below by
Embodiment is described.
As shown in figure 1, one embodiment of the invention provides a kind of control method of wind power generating set, the wind-driven generator
Group includes：More typhoon power generators, more step-up transformers and the more typhoon electricity unsteady flows being arranged in same target wind field
Device, it is to be equipped with a step-up transformer and a typhoon electric converter per typhoon power generator, includes per typhoon electric converter：It is main
Controller and the breaker being sequentially connected, grid side electronic power switch, motor side electronic power switch, generator protection
Device, the breaker access high-voltage fence by step-up transformer, and the generator protection device is connected with above-mentioned wind-driven generator
Connect；Above-mentioned control method includes：The control method includes step S101-S103, specific as follows：
Step S101：The carrier phase bias of each wind electric converter is determined respectively, and is generated and multiple carried the carrier wave
The carrier phase offset signal of phase bias value, wherein, the carrier phase bias per typhoon electric converter is different；
Step S102：Carrier phase reference signal is sent to the master controller of each wind electric converter, wherein, carrier phase base
Calibration signal carries reference phase, and the reference phase per typhoon electric converter is identical；And
Step S103：Multiple carrier phase offset signals are sent to the master controller of corresponding wind electric converter, so that
The grid side power electronics that master controller determines each to control according to carrier phase reference signal and carrier phase offset signal is opened
The target carrier phase of pass, wherein, the target carrier phase is reference phase corresponding to above-mentioned carrier phase reference signal and upper
State carrier phase bias sum corresponding to carrier phase offset signal.
Specifically, more typhoon power generators are typically provided with same target wind field, it is corresponding to be provided with more typhoon electricity changes
Device is flowed, the phase of more typhoon electric converters is carried out being uniformly coordinated control using network service, reaches and controls same target in real time
The purpose of the phase of more typhoon electric converters in wind field.
Because switching frequency harmonic wave caused by the grid side electronic power switch in each wind electric converter will influence power network
Quality, therefore, it is necessary in the case where not increasing wave filter, reduce or eliminate the grid side power electronics in each wind electric converter
Switching frequency harmonic wave caused by switch, opened for the grid side power electronics in multiple wind electric converters in same target wind field
Close, when the target carrier phase transmitted according to each autonomous controller is acted so that the grid side in wind electric converter two-by-two
Switching frequency caused by electronic power switch forms certain phase difference, when phase difference is 180 °, between two wind electric converters
The harmonic wave of switching frequency can be completely counterbalanced by, so as to ensure caused by the grid side electronic power switch in each wind electric converter
Harmonic wave is cancelled out each other partly or entirely, and then is realized and need not be equipped with wave filter for each wind electric converter, also can be reduced or be disappeared
Except the effect of switching frequency harmonic wave caused by the grid side electronic power switch in each wind electric converter, so as to reach more preferable filter
Ripple effect.
It should be noted that the harmonic wave of harmonic protection switching frequency caused by pulsewidth modulation, and more frequency are switch frequency
The higher order harmonics of rate integral multiple.The wind electric converter that two carrier phases differ 180 ° can realize that the harmonic wave of switching frequency is complete
It is complete to offset, but the harmonic wave of more high order needs more typhoon electric converters to carry out harmonic cancellation again in the way of 360 °/n, wherein,
N represents the number of units of the wind electric converter of mutual harmonic cancellation.
Further, since the timing of the master controller of each wind electric converter is sent by its internal oscillating crystal, often
There is certain difference in the oscillating crystal of individual master controller, benchmark timing generation deviation after accumulated time is avoided, therefore, in this hair
In the embodiment of bright offer, while sending carrier phase offset signal to the master controller of each wind electric converter, also send and carry
Wave phase reference signal, and then the target of the grid side electronic power switch in each wind electric converter for ensureing finally to determine carries
The accuracy of wave phase.
Wherein, in order to ensure that harmonic wave caused by the grid side electronic power switch in each wind electric converter is cancelled out each other effect
More preferably, the switching frequency of the grid side electronic power switch of more typhoon electric converters in above-mentioned target wind field is identical.
It should be noted that wind electric converter corresponding to each wind-driven generator can be integrated in the wind-driven generator
It is interior；Above-mentioned generator protection device can be fuse, breaker or arrester etc., in the specific implementation, can be according to wind-force
The concrete condition option and installment of generating set.
In embodiment provided by the invention, pass through the target carrier phase to more typhoon electric converters in target wind field
It is controlled, the part or complete so that harmonic wave caused by the grid side electronic power switch in each wind electric converter is cancelled out each other
Portion, total harmonic wave of target wind field is reduced, and then even if not setting filter in grid side, can also reach guarantee input power network
The quality of power supply effect.
Further, it is contemplated that because the wind-force of diverse location in same target wind field has certain difference, be arranged at
The wind-driven generator of the smaller opening position of wind-force is likely to be at off working state, so as to cause what is be connected with the wind-driven generator
Wind electric converter is also at off working state, accurate in order to ensure the carrier phase bias of each wind electric converter determined
Property, and then ensure the effect that switching frequency harmonic wave is cancelled out each other between each wind electric converter, based on this, another embodiment of the present invention
A kind of control method of wind power generating set is provided, as shown in Fig. 2 the control method comprises the following steps：
Step S201：Determine the quantity of wind electric converter currently run in target wind field.
Step S202：According to the quantity of the above-mentioned wind electric converter currently run, each wind-powered electricity generation currently run is determined respectively
The carrier phase bias of the grid side electronic power switch of current transformer, and generate multiple carrier phase biases that carry
Carrier phase offset signal, wherein, the carrier phase bias per typhoon electric converter is different.
Step S203：Carrier phase reference signal is sent to the master controller of each wind electric converter currently run, wherein,
The carrier phase reference signal carries reference phase, and the reference phase per typhoon electric converter is identical；And
Step S204：Multiple above-mentioned carrier phase offset signals are sent to the master controller of corresponding wind electric converter,
So that the grid side electric power electricity that master controller determines each to control according to carrier phase reference signal and carrier phase offset signal
The target carrier phase of sub switch, wherein, the target carrier phase is reference phase corresponding to above-mentioned carrier phase reference signal
With above-mentioned carrier phase offset signal corresponding to carrier phase bias sum.
Likewise, in order to ensure that harmonic wave caused by the grid side electronic power switch in each wind electric converter is cancelled out each other effect
Fruit is more preferable, and the switching frequency of the grid side electronic power switch of more typhoon electric converters in above-mentioned target wind field is identical.
In embodiment provided by the invention, the wind electric converter only currently run can just produce switching frequency harmonic wave,
Cancelled out each other between switching frequency harmonic wave caused by ability and other wind electric converters currently run, therefore, it is determined that each wind
Before the carrier phase bias of electric converter, the quantity of wind electric converter currently run in target wind field is first determined, is based on
The carrier phase bias of each wind electric converter currently run is calculated in the quantity of the wind electric converter currently run, row
Except current wind electric converter out of service, the carrier phase bias for each wind electric converter determined so is able to ensure that
Accuracy, and then ensure the effect that switching frequency harmonic wave is cancelled out each other between each wind electric converter.
Wherein, above-mentioned steps S202 is according to the quantity of the above-mentioned wind electric converter currently run, determines each above-mentioned work as respectively
The carrier phase bias of the grid side electronic power switch of the wind electric converter of preceding operation, can be specifically included：
Step 1：The wind electric converter currently run in the target wind field determined is numbered, it is determined that each current
The sequence number of the wind electric converter of operation；
Step 2：According to formulaThe grid side of each above-mentioned wind electric converter currently run is determined respectively
The carrier phase bias of electronic power switch；
Wherein, βkRepresent the carrier phase bias of the grid side electronic power switch of serial number k wind electric converter, N
The quantity of wind electric converter currently run in target wind field is represented, k represents the wind electric converter currently run in target wind field
Sequence number, k=0 ... i..., (N-1).
Specifically, for example, the quantity of the wind electric converter currently run be 6, reference phase a, according to above-mentioned formula
Understand,
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 0 is 0, corresponding target
Carrier phase is a；
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 1 is 60 °, corresponding mesh
It is a+60 ° to mark carrier phase；
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 2 is 120 °, corresponding
Target carrier phase is a+120 °；
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 3 is 180 °, corresponding
Target carrier phase is a+180 °；
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 4 is 240 °, corresponding
Target carrier phase is a+240 °；
The carrier phase bias of the grid side electronic power switch of the wind electric converter of serial number 5 is 300 °, corresponding
Target carrier phase is a+300 °；
Therefore, switching frequency harmonic wave caused by the grid side electronic power switch of the wind electric converter of serial number 0 can be with
It is completely counterbalanced by between switching frequency harmonic wave caused by the grid side electronic power switch of the wind electric converter of serial number 3；Serial number 1
Wind electric converter grid side electronic power switch caused by switching frequency harmonic wave can be with the wind electric converter of serial number 4
It is completely counterbalanced by between switching frequency harmonic wave caused by grid side electronic power switch；The grid side of the wind electric converter of serial number 2
Switching frequency harmonic wave caused by electronic power switch can produce with the grid side electronic power switch of the wind electric converter of serial number 5
It is completely counterbalanced by between raw switching frequency harmonic wave.
Wherein, the wind electric converter currently run in a pair of above-mentioned target wind fields determined of above-mentioned steps is numbered,
It is determined that the sequence number of each above-mentioned wind electric converter currently run, can be specifically embodied as：
According to the relative position relation of each wind electric converter currently run in above-mentioned target wind field, to each above-mentioned current fortune
Capable wind electric converter is ranked up；
The sequence number of each above-mentioned wind electric converter currently run in above-mentioned target wind field is determined according to ranking results, wherein,
The difference between the carrier phase bias of adjacent wind electric converter meets preparatory condition two-by-two, and the preparatory condition can be connect
Closely or equal to 180 °, it is preferred that the difference between the carrier phase bias of adjacent wind electric converter is 180 ° two-by-two.
Wherein, the process being ranked up to each wind electric converter currently run can be it is random or according to
Certain rule is ranked up to each wind electric converter currently run, in embodiment provided by the invention so that adjacent two-by-two
Wind electric converter carrier phase bias between difference be 180 °, the switch frequency between so adjacent wind electric converter
Rate harmonic wave can be completely counterbalanced by, and based on the example above, first group is currently running and adjacent wind electric converter numbering is
0th, 3, second group is currently running and adjacent wind electric converter numbering is 1,4, the 3rd group is currently running and phase
Adjacent wind electric converter numbering is 2,5.
Wherein, it is contemplated that the wind-force in target wind field is probably to change at any time, so as to cause the current operation determined
The quantity of wind electric converter change, based on this, the wind-powered electricity generation that above-mentioned steps S201 determines currently to run in target wind field becomes
The quantity of device is flowed, is specifically included：
According to prefixed time interval, pass through the operation shape of each wind electric converter in high-speed communication network acquisition target wind field
State, the running status include：Run and do not run two kinds；
According to the running status of each wind electric converter of acquisition, the quantity of the wind electric converter currently run is updated, will
Running status is defined as the quantity of the wind electric converter currently run for the sum of the wind electric converter of operation.
In embodiment provided by the invention, the number for the wind electric converter for determining currently to run according to prefixed time interval
Amount, the carrier phase bias of the grid side electronic power switch in each wind electric converter is adjusted in real time.
In the control method of wind power generating set provided by the invention, the control method includes：Each wind-powered electricity generation is determined respectively
The carrier phase bias of current transformer, and generate multiple carrier phase offset signals for carrying the carrier phase bias；To
The master controller of each wind electric converter sends carrier phase reference signal；And multiple carrier phase offset signals are sent to right
The master controller for the wind electric converter answered, so that master controller is true according to carrier phase reference signal and carrier phase offset signal
The target carrier phase of the fixed grid side electronic power switch each controlled.The embodiment of the present invention is to more typhoons in target wind field
The target carrier phase of electric converter is controlled, so that the grid side electronic power switch in each wind electric converter produces
Harmonic wave cancel out each other partly or entirely, reduce total harmonic wave of target wind field, and then even if not setting filter in grid side,
Also the effect for the quality of power supply for ensureing input power network can be reached.
The embodiment of the present invention additionally provides a kind of control device of wind power generating set, as shown in figure 3, the device includes：
Phase bias value determining module 301, for each wind electric converter for determining to be arranged in same target wind field respectively
Carrier phase bias, and generate multiple carrier phase offset signals for carrying the carrier phase bias, wherein, every
The above-mentioned carrier phase bias of above-mentioned wind electric converter is different；
Carrier phase signal sending module 302, for sending carrier phase to the master controller of each above-mentioned wind electric converter
Reference signal, wherein, above-mentioned carrier phase reference signal carries reference phase, the said reference of every above-mentioned wind electric converter
Phase is identical；And
Multiple above-mentioned carrier phase offset signals are sent to the above-mentioned master controller of corresponding above-mentioned wind electric converter, with
Make the above-mentioned master controller of above-mentioned wind electric converter according to above-mentioned carrier phase reference signal and above-mentioned carrier phase offset signal
It is determined that the target carrier phase of the grid side electronic power switch each controlled, wherein, above-mentioned target carrier phase is above-mentioned load
Carrier phase bias sum corresponding to reference phase corresponding to wave phase reference signal and above-mentioned carrier phase offset signal.
In embodiment provided by the invention, pass through the target carrier phase to more typhoon electric converters in target wind field
It is controlled, the part or complete so that harmonic wave caused by the grid side electronic power switch in each wind electric converter is cancelled out each other
Portion, total harmonic wave of target wind field is reduced, and then even if not setting filter in grid side, can also reach guarantee input power network
The quality of power supply effect.
Further, above-mentioned control device also includes：
The wind electric converter quantity determining module of operation, for the wind electric converter that determines currently to run in target wind field
Quantity；
Above-mentioned phase bias value determining module 301, specifically for the quantity according to the above-mentioned wind electric converter currently run,
The carrier phase bias of the grid side electronic power switch of each wind electric converter currently run is determined respectively, and is generated multiple
Carry the carrier phase offset signal of the carrier phase bias.
Further, above-mentioned phase bias value determining module 301, is specifically used for：
The wind electric converter currently run in the above-mentioned target wind field determined is numbered, it is determined that each current operation
Wind electric converter sequence number；
According to formulaThe grid side electric power electricity of each above-mentioned wind electric converter currently run is determined respectively
The carrier phase bias of sub switch；
Wherein, βkRepresent the carrier phase bias of the grid side electronic power switch of serial number k wind electric converter, N
The quantity of wind electric converter currently run in target wind field is represented, k represents the wind electric converter currently run in target wind field
Sequence number, k=0 ... i..., (N-1).
Further, for the sequence number process of each above-mentioned wind electric converter currently run of determination, above-mentioned phase bias
It is worth determining module 301, is specifically used for：
According to the relative position relation of each wind electric converter currently run in above-mentioned target wind field, to each above-mentioned current fortune
Capable wind electric converter is ranked up；
The sequence number of each above-mentioned wind electric converter currently run in above-mentioned target wind field is determined according to ranking results, wherein,
Difference two-by-two between the carrier phase bias of adjacent wind electric converter is identical.
Further, the wind electric converter quantity determining module of above-mentioned operation, is specifically used for：
According to prefixed time interval, each wind electric converter in the target wind field is obtained by high-speed communication network
Running status；
According to the running status of each wind electric converter of acquisition, the number of the renewal wind electric converter currently run
Amount.
It should be noted that the principle for solving problem by above-mentioned control device is similar to aforementioned control method, therefore
The implementation of the control device may refer to the implementation of aforementioned control method, based on aforementioned control method in same target wind field
The carrier phase of the grid side electronic power switch of each wind electric converter is controlled, and is repeated part and is repeated no more.
The embodiment of the present invention additionally provides a kind of wind electric converter, as shown in figure 4, the wind electric converter 20 includes：Master control
Device 205 processed and the breaker 201 being sequentially connected, grid side electronic power switch 202, motor side electronic power switch 203,
Generator protection device 204, the breaker 201 access high-voltage fence, the generator protection device 204 by step-up transformer 30
It is connected with wind-driven generator 10；
Above-mentioned master controller 205, is used for：
The carrier phase reference signal that the control device of wind power generating set is sent is received, wherein, the carrier phase reference
Signal carries reference phase, and the reference phase per typhoon electric converter 20 is identical；And
The carrier phase offset signal that the control device of wind power generating set is sent is received, wherein, per typhoon electric converter
The carrier phase bias carried in the 20 carrier phase offset signals received is different；
The grid side electricity for determining each to control according to above-mentioned carrier phase reference signal and above-mentioned carrier phase offset signal
The target carrier phase of power electronic switch 202, wherein, the target carrier phase is base corresponding to above-mentioned carrier phase reference signal
Carrier phase bias sum corresponding to quasi- phase and above-mentioned carrier phase offset signal.
Wherein, the grid side electronic power switch for more above-mentioned wind electric converters 20 being arranged in same target wind field
202 switching frequency is identical.
It should be noted that by the principle that above-mentioned wind electric converter 20 solves problem is similar to aforementioned control method,
Therefore the implementation of the wind electric converter 20 may refer to the implementation of aforementioned control method, based on aforementioned control method to same target
The carrier phase of the grid side electronic power switch 202 of each wind electric converter 20 in wind field is controlled, and repeats part no longer
Repeat.
In wind electric converter 20 provided in an embodiment of the present invention, due to by setting above-mentioned wind-force to send out in target wind field
The control device of group of motors is controlled to the target carrier phase of more typhoon electric converters 20 in target wind field, so that
Harmonic wave caused by grid side electronic power switch 202 in each wind electric converter 20 is cancelled out each other partly or entirely, reduces mesh
Total harmonic wave of wind field is marked, without setting the wave filter that volume is big and cost is high in wind electric converter 20, and then even if not in electricity
Net side sets filter, can also reach the effect for the quality of power supply for ensureing input power network.
The embodiment of the present invention additionally provides a kind of control system of wind power generating set, as shown in figure 5, the system includes：
Wind power generating set 2, the control device 1 such as in Fig. 3；
Above-mentioned wind power generating set 2 includes：It is arranged at more typhoon power generators 10 in same target wind field, more boostings
Wind electric converter 20 in transformer 30 and more such as Fig. 4, it is that every above-mentioned wind-driven generator 10 is equipped with an above-mentioned boosting
Transformer 30 and an above-mentioned wind electric converter 20；
Above-mentioned control device 1 passes through each above-mentioned wind electric converter 20 in fiber optic network and above-mentioned wind power generating set 2
Master controller 205 is connected.
It should be noted that the principle for solving problem by above-mentioned control system is similar to aforementioned control method, therefore
The implementation of the control system may refer to the implementation of aforementioned control method, based on aforementioned control method in same target wind field
The carrier phase of the grid side electronic power switch 202 of each wind electric converter 20 is controlled, and is repeated part and is repeated no more.
In the control system of wind power generating set 2 provided by the invention, the control system includes：Wind power generating set 2
With the control device 1 of the wind power generating set 2, wherein, the control device 1 is true respectively by phase bias value determining module 301
The carrier phase bias of fixed each wind electric converter 20, and it is inclined to generate multiple carrier phases for carrying the carrier phase bias
Confidence number；Carrier phase base is sent to the master controller 205 of each wind electric converter 20 by carrier phase signal sending module 302
Calibration signal；And send multiple carrier phase offset signals to the master controller 205 of corresponding wind electric converter 20, so that main
The grid side power electronics that controller 205 determines each to control according to carrier phase reference signal and carrier phase offset signal is opened
Close 202 target carrier phase.Target carrier phase of the embodiment of the present invention to more typhoon electric converters 20 in target wind field
It is controlled, the portion so that harmonic wave caused by the grid side electronic power switch 202 in each wind electric converter 20 is cancelled out each other
Divide or all, reduce total harmonic wave of target wind field, and then even if not setting filter in grid side, it is defeated can also to reach guarantee
Enter the effect of the quality of power supply of power network.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent accompanying drawing in individual accompanying drawing.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and can not manage
Solve to indicate or implying relative importance.
In the description of the invention, it is also necessary to explanation, unless otherwise clearly defined and limited, term " setting ",
" installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or one
Connect body；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirect by intermediary
It is connected, can is the connection of two element internals.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Finally it should be noted that：Embodiment described above, it is only the embodiment of the present invention, to illustrate the present invention
Technical scheme, rather than its limitations, protection scope of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those within the art that：Any one skilled in the art
The invention discloses technical scope in, it can still modify to the technical scheme described in previous embodiment or can be light
Change is readily conceivable that, or equivalent substitution is carried out to which part technical characteristic；And these modifications, change or replacement, do not make
The essence of appropriate technical solution departs from the spirit and scope of technical scheme of the embodiment of the present invention.The protection in the present invention should all be covered
Within the scope of.Therefore, protection scope of the present invention described should be defined by scope of the claims.
Claims (10)
1. a kind of control method of wind power generating set, it is characterised in that the wind power generating set includes：It is arranged at same mesh
More typhoon power generators, more step-up transformers and the more typhoon electric converters in wind field are marked, is every wind-power electricity generation
Machine, which is equipped with a step-up transformer and a wind electric converter, every wind electric converter, to be included：Main control
Device and the breaker being sequentially connected, grid side electronic power switch, motor side electronic power switch, generator protection device,
The breaker accesses high-voltage fence, the generator protection device and the wind-driven generator phase by the step-up transformer
Connection；The control method includes：
The carrier phase bias of each wind electric converter is determined respectively, and is generated and multiple carried the carrier phase bias
Carrier phase offset signal, wherein, the carrier phase bias of every wind electric converter is different；
Carrier phase reference signal is sent to the master controller of each wind electric converter, wherein, the carrier phase base
Calibration signal carries reference phase, and the reference phase of every wind electric converter is identical；And
Multiple carrier phase offset signals are sent to the master controller of the corresponding wind electric converter, so that institute
State the grid side that master controller determines each to control according to the carrier phase reference signal and the carrier phase offset signal
The target carrier phase of electronic power switch, wherein, the target carrier phase is corresponding to the carrier phase reference signal
Carrier phase bias sum corresponding to reference phase and the carrier phase offset signal.
2. control method according to claim 1, it is characterised in that the load for determining each wind electric converter respectively
Before wave phase bias, in addition to：Determine the quantity of wind electric converter currently run in the target wind field；
The carrier phase bias for determining each wind electric converter respectively, including：According to the wind-powered electricity generation currently run
The quantity of current transformer, the carrier phase of the grid side electronic power switch of each wind electric converter currently run is determined respectively
Bias.
3. control method according to claim 2, it is characterised in that described according to the wind electric converter currently run
Quantity, determine respectively each wind electric converter currently run grid side electronic power switch carrier phase biasing
Value, including：
The wind electric converter currently run in the target wind field determined is numbered, it is determined that each current operation
Wind electric converter sequence number；
According to formulaThe grid side electronic power switch of each wind electric converter currently run is determined respectively
Carrier phase bias；
Wherein, βkThe carrier phase bias of the grid side electronic power switch of serial number k wind electric converter is represented, N represents mesh
The quantity of the wind electric converter currently run in mark wind field, k represent the sequence number of the wind electric converter currently run in target wind field,
K=0 ... i..., (N-1).
4. control method according to claim 3, it is characterised in that current in the described pair of target wind field determined
The wind electric converter of operation is numbered, it is determined that the sequence number of each wind electric converter currently run, including：
According to the relative position relation of each wind electric converter currently run in the target wind field, described currently run to each
Wind electric converter is ranked up；
The sequence number of each wind electric converter currently run in the target wind field is determined according to ranking results, wherein, two-by-two
Difference between the carrier phase bias of adjacent wind electric converter meets preparatory condition.
5. control method according to claim 2, it is characterised in that described to determine what is currently run in the target wind field
The quantity of wind electric converter, including：
According to prefixed time interval, the operation of each wind electric converter in the target wind field is obtained by high-speed communication network
State；
According to the running status of each wind electric converter of acquisition, the quantity of the renewal wind electric converter currently run.
6. according to the control method described in any one of claim 1 to 5, it is characterised in that more institutes in the target wind field
The switching frequency for stating the grid side electronic power switch of wind electric converter is identical.
A kind of 7. control device of wind power generating set, it is characterised in that including：
Phase bias value determining module, for the carrier wave phase for each wind electric converter for determining to be arranged in same target wind field respectively
Position bias, and multiple carrier phase offset signals for carrying the carrier phase bias are generated, wherein, every wind-powered electricity generation
The carrier phase bias of current transformer is different；
Carrier phase signal sending module, for sending carrier phase reference letter to the master controller of each wind electric converter
Number, wherein, the carrier phase reference signal carries reference phase, and the reference phase of every wind electric converter is
Identical；And
Multiple carrier phase offset signals are sent to the master controller of the corresponding wind electric converter, so that institute
The master controller for stating wind electric converter determines according to the carrier phase reference signal and the carrier phase offset signal
The target carrier phase of the grid side electronic power switch each controlled, wherein, the target carrier phase is the carrier wave phase
Carrier phase bias sum corresponding to reference phase corresponding to the reference signal of position and the carrier phase offset signal.
A kind of 8. wind electric converter, it is characterised in that including：Master controller and the breaker being sequentially connected, grid side electric power
Electronic switch, motor side electronic power switch, generator protection device, the breaker access high-tension electricity by step-up transformer
Net, the generator protection device are connected with wind-driven generator；
The master controller, is used for：
The carrier phase reference signal that the control device of wind power generating set is sent is received, wherein, the carrier phase reference letter
Number reference phase is carried, the reference phase of every wind electric converter is identical；And
The carrier phase offset signal that the control device of wind power generating set is sent is received, wherein, every wind electric converter
The carrier phase bias carried in the carrier phase offset signal received is different；
The grid side electric power electricity for determining each to control according to the carrier phase reference signal and the carrier phase offset signal
The target carrier phase of sub switch, wherein, the target carrier phase is benchmark phase corresponding to the carrier phase reference signal
Carrier phase bias sum corresponding to position and the carrier phase offset signal.
9. wind electric converter according to claim 8, it is characterised in that be arranged at described in more in same target wind field
The switching frequency of the grid side electronic power switch of wind electric converter is identical.
10. a kind of control system of wind power generating set, it is characterised in that the system includes：Wind power generating set, such as right
It is required that the control device described in 7；
The wind power generating set includes：Be arranged at more typhoon power generators in same target wind field, more step-up transformers,
And more wind electric converters as claimed in claim 8 or 9, it is that every wind-driven generator is equipped with a boosting change
Depressor and a wind electric converter；
The master controller that the control device passes through each wind electric converter in fiber optic network and the wind power generating set
It is connected.
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| CN201711166863.6A CN107769264A (en) | 2017-11-21 | 2017-11-21 | The control method of wind power generating set, device, system, wind electric converter |
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| CN201711166863.6A CN107769264A (en) | 2017-11-21 | 2017-11-21 | The control method of wind power generating set, device, system, wind electric converter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184702A1 (en) * | 2020-03-19 | 2021-09-23 | 新疆金风科技股份有限公司 | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| CN113990625A (en) * | 2021-11-03 | 2022-01-28 | 浙江飞旋科技有限公司 | High-frequency large-capacity power electronic unit parallel device and carrier multiplexing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080143111A1 (en) * | 2006-12-14 | 2008-06-19 | Masaya Ichinose | Wind Power Generation System |
| CN104678302A (en) * | 2015-03-04 | 2015-06-03 | 同济大学 | Low voltage ride-through test system and method for wind turbine generator of Boost current transformer |
| CN106685239A (en) * | 2015-11-11 | 2017-05-17 | 中车株洲电力机车研究所有限公司 | Multiple carrier phase-shifting method for converter |
-
2017
- 2017-11-21 CN CN201711166863.6A patent/CN107769264A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080143111A1 (en) * | 2006-12-14 | 2008-06-19 | Masaya Ichinose | Wind Power Generation System |
| CN104678302A (en) * | 2015-03-04 | 2015-06-03 | 同济大学 | Low voltage ride-through test system and method for wind turbine generator of Boost current transformer |
| CN106685239A (en) * | 2015-11-11 | 2017-05-17 | 中车株洲电力机车研究所有限公司 | Multiple carrier phase-shifting method for converter |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021184702A1 (en) * | 2020-03-19 | 2021-09-23 | 新疆金风科技股份有限公司 | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| CN113497455A (en) * | 2020-03-19 | 2021-10-12 | 新疆金风科技股份有限公司 | Method and device for regulating and controlling converter of wind turbine generator in wind power plant |
| US20230208145A1 (en) * | 2020-03-19 | 2023-06-29 | Xinjiang Goldwind Science & Technology Co., Ltd. | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| EP4117136A4 (en) * | 2020-03-19 | 2023-09-13 | Xinjiang Goldwind Science & Technology Co., Ltd. | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| AU2020436114B2 (en) * | 2020-03-19 | 2023-12-21 | Goldwind Science & Technology Co., Ltd. | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| US11962158B2 (en) * | 2020-03-19 | 2024-04-16 | Xinjiang Goldwind Science & Technology Co., Ltd. | Regulation method and regulation device for converter of wind turbine generator in wind power plant |
| CN113990625A (en) * | 2021-11-03 | 2022-01-28 | 浙江飞旋科技有限公司 | High-frequency large-capacity power electronic unit parallel device and carrier multiplexing method |
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Application publication date: 20180306 |