CN107069799B - The control method and system of double-feedback aerogenerator group - Google Patents
The control method and system of double-feedback aerogenerator group Download PDFInfo
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- H02J3/386—
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/18—Arrangements for adjusting, eliminating or compensating reactive power in networks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/007—Control circuits for doubly fed generators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P2101/00—Special adaptation of control arrangements for generators
- H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
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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
- Y02E40/30—Reactive power compensation
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Abstract
The present invention provides the control methods and system of a kind of double-feedback aerogenerator group, are related to the technical field of Electric control, wherein this method comprises: obtaining wind-driven generator access point reactive power value to be compensated；The reactive power that the wind-driven generator is issued to power grid under the conditions of calculating maximal power point tracking is most worth；When the reactive power value to be compensated, which is greater than the reactive power, to be most worth, the reactive power that calculating issues wind-driven generator reaches generator speed when maximum value, and controls the maximum reactive power that wind-driven generator is issued to power grid according to the generator speed.This method can make full use of the reactive power potential inside double-fed type generating set, it is set to play bigger effect during participating in wind power plant reactive voltage adjusting, the pressure of reactive-load compensation equipment is reduced, flexibility and economy that wind power plant reactive voltage is adjusted are improved.
Description
Technical field
The present invention relates to Electric control fields, in particular to a kind of idle control of double-feedback aerogenerator group
Method and system.
Background technique
With the development and utilization of wind energy, wind generating technology is increasingly mature.However, in the mistake of wind power generation set grid-connection
Cheng Zhong, wind power generating set caused by the randomness of wind speed go out fluctuation, and the variation or grid operation mode of access load
Variation, can all cause the fluctuation of wind power generation set grid-connection point voltage, and then influence the power quality of power grid, even result in and be
The collapse of system voltage and frequency, therefore, the compensation of reactive power play a crucial role during voltage is adjusted.
In the related technology, wind-driven generator carries out reactive power in the case where meeting maximal power point tracking using single
Compensation calculates the maximum reactive power that wind-driven generator is issued to power grid, then most according to this under the conditions of maximal power point tracking
Big reactive power compensates reactive power needed for wind-driven generator access node.
In the actual operation process, wind-driven generator is using the maximum reactive power under the conditions of single maximal power point tracking
The efficiency compensated to reactive power needed for wind-driven generator access node is relatively low, generates to wind power generating set inside
Reactive power can not adequately be utilized, cause wind power plant reactive voltage adjust flexibility and economy it is poor.
Summary of the invention
In view of this, a kind of control method for being designed to provide double-feedback aerogenerator group of the embodiment of the present invention and
System makes it participate in wind-powered electricity generation so that reactive power to be adjusted using reactive power regulating power inside wind power generating set
Field reactive voltage plays bigger effect during adjusting, and reduces the pressure of reactive-load compensation equipment, improves the idle electricity of wind power plant
Press the flexibility and economy adjusted.
In a first aspect, the embodiment of the invention provides a kind of control method of double-feedback aerogenerator group, the method
Include:
Obtain wind-driven generator access point reactive power value to be compensated；
The reactive power that the wind-driven generator is issued to power grid under the conditions of calculating maximal power point tracking is most worth；
When the reactive power value to be compensated, which is greater than the reactive power, to be most worth, the nothing for issuing wind-driven generator is calculated
Function power reaches generator speed when maximum value, and controls wind-driven generator according to the generator speed and issue most to power grid
Big reactive power.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein
Under the conditions of maximal power point tracking, the extreme value for calculating the reactive power that wind-driven generator is issued to power grid includes:
The reactive power issued according to the wind-driven generator under the conditions of following equation calculating maximal power point tracking to power grid
Most it is worth:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation electricity
It is anti-, UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity,
ωpuIndicate generator amature revolving speed, P0Indicate the output power of wind-driven generator.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein when
When the reactive power value to be compensated is most worth greater than the reactive power, the reactive power for issuing wind-driven generator is calculated up to most
Generator speed when big value, and the maximum reactive power that wind-driven generator is issued to power grid is controlled according to the generator speed
Include:
The generator speed when reactive power that wind-driven generator issues of sening as an envoy to reaches maximum value is fitted according to following equation, with
And corresponding maximum reactive power:
Wherein, QmaxIndicate maximum reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance,
UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuTable
Show that generator amature revolving speed, f indicate rated frequency, p indicates number of pole-pairs, and k indicates gearbox drive chain no-load voltage ratio, and ρ indicates that air is close
Degree, D indicate that impeller diameter, v indicate that air enters the pervious wind speed of wind-driven generator swept surface, and g indicates acceleration of gravity.
With reference to first aspect, the embodiment of the invention provides the third possible embodiments of first aspect, wherein institute
State method further include: be most worth to pusher side according to the reactive power that the reactive power value to be compensated and wind-driven generator can issue
The distribution of reactive power is carried out with net side.
With reference to first aspect, the embodiment of the invention provides the 4th kind of possible embodiments of first aspect, wherein root
Most it is worth according to the reactive power that the reactive power value to be compensated and wind-driven generator can issue idle to pusher side and net side progress
The distribution of power includes:
Judge whether the reactive power value to be compensated is less than the maximum reactive power that the wind-driven generator can issue
Value；
If it is not, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=Qgmax；
If it is, judging whether the reactive power value to be compensated is less than Qsmax；
When the reactive power value to be compensated is greater than QsmaxWhen, then the size of the reactive power value distributed to pusher side and net side
Are as follows: Qsref=Qsmax, Qgref=Qref–Qsmax；
When the reactive power value to be compensated is less than QsmaxWhen, then judge whether the reactive power value to be compensated is less than
Qsmin；
If it is, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmin, Qgref=Qgmin；
If it is not, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qref, Qgref=0；
Wherein, QrefIndicate the reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIt indicates
Net side reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue
Minimum reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate that net side can issue most
Small reactive power value.
Second aspect, the embodiment of the invention provides a kind of control system of double-feedback aerogenerator group, the systems
It include: that reactive power value to be compensated obtains module, for obtaining wind-driven generator access point reactive power value to be compensated；
Reactive power is most worth computing module, sends out for calculating under the conditions of maximal power point tracking the wind-driven generator to power grid
Reactive power out is most worth；
Generator speed determining module, for when the reactive power value to be compensated be greater than the reactive power be most worth when,
The reactive power that calculating issues wind-driven generator reaches generator speed when maximum value, and is controlled according to the generator speed
The maximum reactive power that wind-driven generator is issued to power grid.
In conjunction with second aspect, the embodiment of the invention provides the first possible embodiments of second aspect, wherein institute
Stating reactive power most value computing module includes: that reactive power is most worth computing unit；
The reactive power is most worth computing unit, for according to the wind under the conditions of following equation calculating maximal power point tracking
The reactive power that power generator is issued to power grid is most worth:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation electricity
It is anti-, UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity,
ωpuIndicate generator amature revolving speed, P0Indicate the output power of wind-driven generator.
In conjunction with second aspect, the embodiment of the invention provides second of possible embodiments of second aspect, wherein institute
Stating generator speed determining module includes: generator speed determination unit；
The generator speed determination unit, for being fitted the idle function for wind-driven generator sending of sening as an envoy to according to following equation
Rate reaches the generator speed and corresponding maximum reactive power when maximum value:
Wherein, QmaxIndicate maximum reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance,
UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuTable
Show that generator amature revolving speed, f indicate rated frequency, p indicates number of pole-pairs, and k indicates gearbox drive chain no-load voltage ratio, and ρ indicates that air is close
Degree, D indicate that impeller diameter, v indicate that air enters the pervious wind speed of wind-driven generator swept surface, and g indicates acceleration of gravity.
In conjunction with second aspect, the embodiment of the invention provides the third possible embodiments of second aspect, wherein institute
State system further include: the distribution module of reactive power, being used for can according to the reactive power value to be compensated and wind-driven generator
The reactive power of sending is most worth the distribution that reactive power is carried out to pusher side and net side.
In conjunction with second aspect, the embodiment of the invention provides the 4th kind of possible embodiments of second aspect, wherein institute
The distribution module for stating reactive power includes:
First judging unit can be sent out for judging whether the reactive power value to be compensated is less than the wind-driven generator
Maximum reactive power value out；
First reactive power allocation unit, for being greater than the wind-power electricity generation function when the reactive power value to be compensated
When the maximum reactive power value enough issued, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax,
Qgref=Qgmax；
Second judgment unit, for being less than what the wind-driven generator can issue when the reactive power value to be compensated
When maximum reactive power value, judge whether the reactive power value to be compensated is less than Qsmax；
Second reactive power allocation unit, for being greater than Q when the reactive power value to be compensatedsmaxWhen, then to pusher side and
The size of the reactive power value of net side distribution are as follows: Qsref=Qsmax, Qgref=Qref–Qsmax；
Third judging unit, for being less than Q when the reactive power value to be compensatedsmaxWhen, then judge the nothing to be compensated
Whether function performance number is less than Qsmin；
Third reactive power allocation unit, for being less than Q when the reactive power value to be compensatedsmin, then to pusher side and net
The size of the reactive power value of side distribution are as follows: Qsref=Qsmin, Qgref=Qgmin；
4th reactive power allocation unit, for being greater than Q when the reactive power value to be compensatedsmin, then to pusher side and net
The size of the reactive power value of side distribution are as follows: Qsref=Qref, Qgref=0；
Wherein, QrefIndicate the reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIt indicates
Net side reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue
Minimum reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate that net side can issue most
Small reactive power value.
The control method and system of a kind of double-feedback aerogenerator group provided in an embodiment of the present invention, by obtaining in real time
Wind-driven generator access point wait mend normal reactive power value, the most value of the reactive power under the conditions of maximal power point tracking cannot expire
Foot is when mending the demand of normal reactive power, according to the relationship of maximum reactive power and generator speed, finds out in maximum idle function
Revolving speed under rate, and generator operation is controlled according to the revolving speed, thus the idle function of maximum issued to wind-driven generator to power grid
Rate is controlled, and uses the single reactive power compensation phase under maximal power point tracking with wind-driven generator in the related technology
Than that can make full use of the reactive power potential inside double-fed type generating set, it is made to participate in wind power plant reactive voltage adjusting
During play bigger effect, reduce the pressure of reactive-load compensation equipment, improve the flexibility that wind power plant reactive voltage is adjusted
With economy.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 shows a kind of process of the control method of double-feedback aerogenerator group provided by the embodiment of the present invention
Figure；
Fig. 2 shows the flow charts of a kind of pusher side provided by the embodiment of the present invention and net side reactive power distribution method；
Fig. 3 shows a kind of structure of the control system of double-feedback aerogenerator group provided by the embodiment of the present invention and shows
It is intended to；
Fig. 4 shows a kind of structural schematic diagram of pusher side and the distribution of net side reactive power provided by the embodiment of the present invention；
Fig. 5 shows maximal power point tracking provided by the embodiment of the present invention and the idle generator maximized under control can
The maximum reactive power comparison diagram of sending.
Icon:
In attached drawing 3, parts list represented by the reference numerals are as follows:
30- reactive power value to be compensated obtains module；31- reactive power is most worth computing module；
32- generator speed determining module.
In attached drawing 4, parts list represented by the reference numerals are as follows:
The first judging unit of 40-；41- the first reactive power allocation unit；
42- second judgment unit；43- the second reactive power allocation unit；
44- third judging unit；45- third reactive power allocation unit；
The 4th reactive power allocation unit of 46-.
Specific embodiment
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, is not intended to limit claimed invention to the detailed description of the embodiment of the present invention provided in the accompanying drawings below
Range, but it is merely representative of selected embodiment of the invention.Based on the embodiment of the present invention, those skilled in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
In view of in the related technology, common blower fan group has constant speed constant-frequency wind turbine generator group, permanent magnet direct-drive variable speed wind
Generating set and double-feedback aerogenerator group.In the actual operation process, the revolving speed of constant speed constant-frequency wind turbine generator group, idle
Power can not be separately adjustable with end voltage, thus is not suitable for the reactive power/voltage control of wind power plant；Permanent magnet direct-drive variable speed wind hair
Motor group is directly determined there is voltage due to the decoupling function of current transformer with the reactive power exchange of power grid by grid-side converter characteristic
Control ability, but size is limited by factors such as Converter Capacity, active power output and line parameter circuit values；Double-feedback aerogenerator
The rotor of group is grid-connected by connection back-to-back converter realization, and the two-way of reactive power can be achieved with grid-side converter in pusher side
Control, strong flexibility are conducive to the Reactive-power control that wind power generating set participates in power grid, therefore how to double-feedback aerogenerator
The control that group carries out reactive power becomes urgent problem to be solved.Based on this, the embodiment of the invention provides a kind of double-fed type wind
The control method and system of power generator group, are described below by embodiment.
Embodiment 1
The executing subject of the control method for the double-feedback aerogenerator group that the present embodiment proposes is management server, is passed through
Real-time acquisition to wind-driven generator access point reactive power value to be compensated, and pass through the revolving speed of generator under maximum reactive power
It controls the maximum reactive power that wind-driven generator is issued to power grid, sufficiently excavates idle inside double-feedback aerogenerator group
Power potential makes it play bigger effect during participating in wind power plant reactive voltage and adjusting, reduces reactive-load compensation equipment
Pressure, improve wind power plant reactive voltage adjust flexibility and economy.
Referring to Fig. 1, the present embodiment provides a kind of control methods of double-feedback aerogenerator group, this method comprises:
Step S101 obtains wind-driven generator access point reactive power value to be compensated.
Wind-driven generator access point reactive power value to be compensated is obtained in real time, wherein the reactive power value to be compensated is
It is the total value for the reactive power that wind-driven generator access point needs to compensate for reactive command value.
Step S102, the reactive power that issues to power grid of wind-driven generator is most worth under the conditions of calculating maximal power point tracking.
Wherein, the reactive power issued according to wind-driven generator under the conditions of following equation calculating maximal power point tracking to power grid
Most it is worth:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation electricity
It is anti-, UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity,
ωpuIndicate generator amature revolving speed, P0Indicate the output power of wind-driven generator.
Step S103, when reactive power value to be compensated, which is greater than reactive power, to be most worth, calculating makes wind-driven generator sending
Reactive power reaches generator speed when maximum value, and controls the maximum that wind-driven generator is issued to power grid according to generator speed
Reactive power.
In the case where grid voltage sags, wind-driven generator to power grid provide active power number receded into the background,
Network voltage is restored to normal range (NR) rapidly, the stabilization of network voltage is kept to become the control stress point of wind power system.At this point, hair
The rotational speed command value of motor is no longer the value acquired under maximal power point tracking control, to guarantee that wind power generating set can be to power grid
Reactive power as much as possible is provided, need to ensure that rotor speed is that can satisfy under the conditions of wind-driven generator maximum reactive power
Revolving speed.
Under conditions of ignoring stator and rotor loss, reactive power maximum value that wind-driven generator is issued to power grid are as follows:
Wherein, QmaxIndicate maximum reactive power, X1、XmRespectively indicate stator leakage reactance and excitation reactance (famous value), Xss=
X1+XmIt indicates；UsFor stator phase voltage amplitude (famous value)；IrmaxFor generator-side converter wear maximum permissible current；SgFor net side unsteady flow
Device capacity (famous value)；ωpuFor generator amature revolving speed (per unit value), P0For the output power (famous value) of wind-driven generator.
By the air force Xue Zhi of wind-driven generator, the mechanical output of wind-driven generator output is
In formula, ρ is atmospheric density, generally 1.25kg/m3, S is that swept area, D are leaf to blade of wind-driven generator windward
Wheel diameter, v are that air enters the pervious wind speed of wind-driven generator swept surface (being undisturbed wind speed), CPFor power coefficient,
It is the ratio of power in the mechanical output and input wind wheel face of wind-driven generator output.
Power coefficient CPIt is the important parameter for characterizing wind-driven generator operational efficiency, it and wind-driven generator revolving speed,
Wind wheel radius, wind speed, propeller pitch angle are related.Different wind-driven generator power coefficient expression formulas slightly have difference, wherein use
CPExpression formula are as follows:
In formula, β is propeller pitch angle；λ is tip speed ratio, i.e. the ratio between the blade tip linear velocity of blade and wind speed.
In formula, R is wind wheel radius,ω is wind speed round.
Relationship between wind speed round ω and generator speed per unit value are as follows:
In formula, f is rated frequency, and p is number of pole-pairs, and k is gearbox drive chain no-load voltage ratio.
The wind power captured when due to propeller pitch angle being 0 is maximum, and propeller pitch angle is difficult to adjust in the actual motion of wind wheel, because
Propeller pitch angle β is set as 0 by this, and (6) are substituted into (3), are obtained
(3), (4) are substituted into (2), are obtained
(7) are substituted into (1), are obtained
Due to the U in formula (8)s、Xm、Xss、Irmax、ρ、D、k、p、SgIt is all constant parameter, v, f can also be measured in real time, only be remained
ωpuFor unique independent variable, it is therefore seen that, reactive power maximum value QmaxIt is one with generator speed per unit value ωpuTo become certainly
The function of a single variable of amount fits Q with MATLAB softwaremaxWith ωpuBetween functional relation, obtain QmaxValue and QmaxIt reaches
Corresponding tachometer value when maximum value meets the revolving speed of control target, is issued to wind-driven generator to power grid according to the revolving speed
Maximum reactive power is controlled.
Similarly, by above-mentioned calculating process, it can be concluded that issuing the minimum value of reactive power, (i.e. absorbing reactive power is most
Big value) Qmin:
According to above-mentioned QmaxAnd QminFormula can correspond to obtain respectively reactive power maximum that pusher side and net side issue with
Minimum value Qsmax、Qsmin、QgmaxAnd Qgmin。
This method further include: according to the reactive power that reactive power value to be compensated and wind-driven generator can issue most be worth to
Pusher side and net side carry out the distribution of reactive power.
Referring to fig. 2, step S201 is specifically included to step S207:
Step S201, judges whether reactive power value to be compensated is less than the maximum reactive power that wind-driven generator can issue
Value executes step S202 when the judgment result is no, when judging structure to be, executes step S203；
Step S202, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=Qgmax；
Step S203, judges whether reactive power value to be compensated is less than Qsmax, when the judgment result is no, execute step
S204 executes step S205 when the judgment result is yes；
Step S204, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=Qref–
Qsmax；
Step S205, judges whether reactive power value to be compensated is less than Qsmin, when the judgment result is no, execute step
S206 executes step S207 when the judgment result is yes；
Step S206, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qref, Qgref=0；
Step S207, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmin, Qgref=Qgmin；
Wherein, QrefIndicate reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIndicate net side
Reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue most
Small reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate the minimum nothing that net side can issue
Function performance number.
This method is described in detail combined with specific embodiments below:
A kind of idle maximization control strategy suitable for double-feedback aerogenerator group, control target are control wind-force hair
The reactive power that motor group is conveyed to power grid is maximum value.The following steps are included:
1) according to certain practical wind power generating set parameter, as shown in table 1, different sampling wind speed apparatus for lower wind generating sets are calculated
Revolving speed and maximum reactive power.
1 wind power plant actual parameter of table
By the parameter substitution formula (8) of table 1, enables wind speed v be respectively equal to 3 and 10, obtain Q under the two wind speedmaxAbout ωpu
Function.Since the revolutional slip of double-fed generator is generally between ± 0.2, revolving speed per unit value is between 0.8~1.2.Fortune
ω is fitted with MATLAB programpuLetter between 0.8~1.2, when v is respectively 3 and 10, between maximum reactive power and revolving speed
Number image, show that optimum speed when wind speed is respectively 3m/s and 10m/s is all 1.2 (per unit values).
According to parameter shown in table 1, using PSCAD emulation platform building containing the idle double-fed wind generator for maximizing control strategy
System single machine and pessimistic concurrency control.
Setting wind speed initial value is 3m/s, and 10m/s is sported after 10s, and setting generator speed instruction value is turn acquired
Speed 1.2, it is the sum of machine net side reactive power command value that setting reactive power, which instructs, and generator actual speed all-the-time stable is instructing
Value, i.e., the tachometer value asked under the conditions of maximum reactive power.
Wherein, pusher side and net side power use Motor convention (absorption is in Q > 0), and the general power of wind power generating set uses
Generator convention (Q > 0 is to issue), the practical reactive power of wind power generating set machine net side remains at instruction value, due to formula
(8) the reactive power maximum value acquired has ignored the ideal value under loss, therefore the practical reactive power exported to power grid is than reason
Want to be worth slightly smaller.
According to parameter in table 1, the revolving speed contrast model under maximal power point tracking control is built, except the control method of revolving speed is adopted
It is outer with maximal power point tracking control, rest part and the above-mentioned double-fed wind generator system single machine containing idle maximization control strategy
And pessimistic concurrency control is identical.
Referring to Fig. 5, under two kinds of control strategies, total reactive power that wind power generating set is actually sent out remains at instruction
Value.Reactive power auxiliary service value under the total idle control compared with maximal power point tracking issued under idle maximization control strategy has obviously
Raising, although in the short period after 10s wind speed mutation, maximal power point tracking control under reactive power auxiliary service value compared with
Greatly, but after this it in long period, is issued under idle maximization control strategy total idle still compared with maximal power point tracking control
It is formed with apparent increase.
Therefore, after maximizing control strategy using the reactive power that this method proposes, wind power generating set is exported to power grid
Reactive power obviously increased, demonstrate this method proposition reactive power maximize control strategy correctness with have
Effect property.
In conclusion the control method and system of a kind of double-feedback aerogenerator group provided in this embodiment, pass through reality
When obtain wind-driven generator access point wait mend normal reactive power value, the most value of the reactive power under the conditions of maximal power point tracking
When not being able to satisfy the demand wait mend normal reactive power, according to the relationship of maximum reactive power and generator speed, find out in maximum
Revolving speed under reactive power, and motor operating is controlled according to the revolving speed, thus the maximum nothing issued to wind-driven generator to power grid
Function power is controlled, and this method can make full use of the reactive power potential inside double-fed type generating set, is participating in it
Wind power plant reactive voltage plays bigger effect during adjusting, and reduces the pressure of reactive-load compensation equipment, improve wind power plant without
The flexibility and economy that function voltage is adjusted.
Embodiment 2
Referring to Fig. 3, the present embodiment provides a kind of control system of double-feedback aerogenerator group, the double-feedback type wind generators
The control system of unit includes:
Reactive power value to be compensated obtains module 30, for obtaining wind-driven generator access point reactive power value to be compensated；
Reactive power is most worth computing module 31, issues for calculating under the conditions of maximal power point tracking wind-driven generator to power grid
Reactive power be most worth；
Generator speed determining module 32, for when reactive power value to be compensated is greater than reactive power and is most worth, calculating to make
The reactive power that wind-driven generator issues reaches generator speed when maximum value, and controls wind-driven generator according to generator speed
The maximum reactive power issued to power grid.
Reactive power most value computing module 31 includes: that reactive power is most worth computing unit；
Reactive power is most worth computing unit, for according to wind-driven generator under the conditions of following equation calculating maximal power point tracking
The reactive power issued to power grid is most worth:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation electricity
It is anti-, UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity,
ωpuIndicate generator amature revolving speed, P0Indicate the output power of wind-driven generator.
Generator speed determining module 32 includes: generator speed determination unit；
Generator speed determination unit, the reactive power for being fitted wind-driven generator sending of sening as an envoy to according to following equation reach
Generator speed and corresponding maximum reactive power when maximum value:
Wherein, QmaxIndicate maximum reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance,
UsIndicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuTable
Show that generator amature revolving speed, f indicate rated frequency, p indicates number of pole-pairs, and k indicates gearbox drive chain no-load voltage ratio, and ρ indicates that air is close
Degree, D indicate that impeller diameter, v indicate that air enters the pervious wind speed of wind-driven generator swept surface, and g indicates acceleration of gravity.
Referring to fig. 4, the system further include: the distribution module of reactive power, for according to reactive power value to be compensated and wind
The reactive power that power generator can issue most is worth the distribution that reactive power is carried out to pusher side and net side.
The distribution module of reactive power includes:
First judging unit 40 can issue most for judging whether reactive power value to be compensated is less than wind-driven generator
Big reactive power value；
First reactive power allocation unit 41, for that can be issued when reactive power value to be compensated is greater than wind-driven generator
Maximum reactive power value when, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=
Qgmax；
Second judgment unit 42, for being less than the maximum nothing that wind-driven generator can issue when reactive power value to be compensated
When function performance number, judge whether reactive power value to be compensated is less than Qsmax；
Second reactive power allocation unit 43, for being greater than Q when reactive power value to be compensatedsmaxWhen, then to pusher side and net
The size of the reactive power value of side distribution are as follows: Qsref=Qsmax, Qgref=Qref–Qsmax；
Third judging unit 44, for being less than Q when reactive power value to be compensatedsmaxWhen, then judge reactive power to be compensated
Whether value is less than Qsmin；
Third reactive power allocation unit 45, for being less than Q when reactive power value to be compensatedsmin, then to pusher side and net side
The size of the reactive power value of distribution are as follows: Qsref=Qsmin, Qgref=Qgmin；
4th reactive power allocation unit 46, for being greater than Q when reactive power value to be compensatedsmin, then to pusher side and net side
The size of the reactive power value of distribution are as follows: Qsref=Qref, Qgref=0；
Wherein, QrefIndicate reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIndicate net side
Reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue most
Small reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate the minimum nothing that net side can issue
Function performance number.
The control system of double-feedback aerogenerator group provided in an embodiment of the present invention, with double-fed provided by the above embodiment
The control method of formula wind power generating set technical characteristic having the same obtains phase so also can solve identical technical problem
Same technical effect.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description
Specific work process, can be with reference to the corresponding process in previous embodiment, details are not described herein.
The computer program product of the control method of double-feedback aerogenerator group provided by the embodiment of the present invention, including
The computer readable storage medium of program code is stored, the instruction that program code includes can be used for executing previous methods embodiment
In method, specific implementation can be found in embodiment of the method, details are not described herein.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. the control method of double-feedback aerogenerator group, which is characterized in that the described method includes:
Obtain wind-driven generator access point reactive power value to be compensated；
The reactive power that the wind-driven generator is issued to power grid under the conditions of calculating maximal power point tracking is most worth；
When the reactive power value to be compensated, which is greater than the reactive power, to be most worth, the idle function for issuing wind-driven generator is calculated
Rate reaches generator speed when maximum value, and controls the maximum nothing that wind-driven generator is issued to power grid according to the generator speed
Function power；
Wherein, controlling the maximum reactive power that wind-driven generator is issued to power grid according to the generator speed includes: under
Column formula fitting send as an envoy to wind-driven generator sending reactive power up to maximum value when generator speed and corresponding maximum nothing
Function power:
Wherein, QmaxIndicate maximum reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance, UsTable
Show stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuIt indicates
Generator amature revolving speed, f indicate rated frequency, and p indicates number of pole-pairs, and k indicates gearbox drive chain no-load voltage ratio, and ρ indicates atmospheric density,
D indicates that impeller diameter, v indicate that air enters the pervious wind speed of wind-driven generator swept surface.
2. the control method of double-feedback aerogenerator group according to claim 1, which is characterized in that chased after in maximal wind-energy
Under the conditions of track, calculating the reactive power most value that wind-driven generator is issued to power grid includes:
Most it is worth according to the reactive power that the wind-driven generator under the conditions of following equation calculating maximal power point tracking is issued to power grid:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance, Us
Indicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuTable
Show generator amature revolving speed, P0Indicate the output power of wind-driven generator.
3. the control method of double-feedback aerogenerator group according to claim 1, which is characterized in that the method is also wrapped
It includes: being most worth according to the reactive power that the reactive power value to be compensated and wind-driven generator can issue to pusher side and net side progress
The distribution of reactive power.
4. the control method of double-feedback aerogenerator group according to claim 3, which is characterized in that according to described wait mend
The reactive power that repaying reactive power value and wind-driven generator can issue most is worth the distribution that reactive power is carried out to pusher side and net side
Include:
The reactive power for judging whether the reactive power value to be compensated is less than the wind-driven generator and can issue most is worth；
If it is not, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=Qgmax；
If it is, judging whether the reactive power value to be compensated is less than Qsmax；
When the reactive power value to be compensated is greater than QsmaxWhen, then the size of the reactive power value distributed to pusher side and net side are as follows:
Qsref=Qsmax, Qgref=Qref–Qsmax；
When the reactive power value to be compensated is less than QsmaxWhen, then judge whether the reactive power value to be compensated is less than Qsmin；
If it is, the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmin, Qgref=Qgmin；
If it is not, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qref, Qgref=0；
Wherein, QrefIndicate the reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIndicate net side
Reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue most
Small reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate the minimum nothing that net side can issue
Function performance number.
5. a kind of control system of double-feedback aerogenerator group, which is characterized in that the system comprises: reactive power to be compensated
Value obtains module, for obtaining wind-driven generator access point reactive power value to be compensated；
Reactive power is most worth computing module, is issued to power grid for calculating the wind-driven generator under the conditions of maximal power point tracking
Reactive power is most worth；
Generator speed determining module, for calculating when the reactive power value to be compensated is greater than the reactive power and is most worth
The reactive power for issuing wind-driven generator reaches generator speed when maximum value, and controls wind-force according to the generator speed
The maximum reactive power that generator is issued to power grid；
The generator speed determining module includes: generator speed determination unit；
The generator speed determination unit, the reactive power for being fitted wind-driven generator sending of sening as an envoy to according to following equation reach
Generator speed and corresponding maximum reactive power when maximum value:
Wherein, QmaxIndicate maximum reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance, UsTable
Show stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuIt indicates
Generator amature revolving speed, f indicate rated frequency, and p indicates number of pole-pairs, and k indicates gearbox drive chain no-load voltage ratio, and ρ indicates atmospheric density,
D indicates that impeller diameter, v indicate that air enters the pervious wind speed of wind-driven generator swept surface.
6. the control system of double-feedback aerogenerator group according to claim 5, which is characterized in that the reactive power
Most value computing module includes: that reactive power is most worth computing unit；
The reactive power is most worth computing unit, sends out for the wind-force under the conditions of calculating maximal power point tracking according to following equation
The reactive power that motor is issued to power grid is most worth:
Wherein, QmaxIndicate the most value of reactive power, XssIndicate the sum of stator leakage reactance and excitation reactance, XmIndicate excitation reactance, Us
Indicate stator phase voltage amplitude, IrmaxIndicate generator-side converter wear maximum permissible current, SgIndicate grid-side converter capacity, ωpuTable
Show generator amature revolving speed, P0Indicate the output power of wind-driven generator.
7. the control system of double-feedback aerogenerator group according to claim 5, which is characterized in that the system is also wrapped
It includes: the distribution module of reactive power, it is idle for that can be issued according to the reactive power value to be compensated and wind-driven generator
Power is most worth the distribution that reactive power is carried out to pusher side and net side.
8. the control system of double-feedback aerogenerator group according to claim 7, which is characterized in that the reactive power
Distribution module include:
First judging unit, for judging whether the reactive power value to be compensated is less than what the wind-driven generator can issue
Reactive power is most worth；
First reactive power allocation unit, for that can be sent out when the reactive power value to be compensated is greater than the wind-driven generator
When reactive power out is most worth, then the size of the reactive power value distributed to pusher side and net side are as follows: Qsref=Qsmax, Qgref=
Qgmax；
Second judgment unit, for when the reactive power value to be compensated be less than the wind-driven generator can issue it is idle
When power is most worth, judge whether the reactive power value to be compensated is less than Qsmax；
Second reactive power allocation unit, for being greater than Q when the reactive power value to be compensatedsmaxWhen, then to pusher side and net side point
The size for the reactive power value matched are as follows: Qsref=Qsmax, Qgref=Qref–Qsmax；
Third judging unit, for being less than Q when the reactive power value to be compensatedsmaxWhen, then judge the reactive power to be compensated
Whether value is less than Qsmin；
Third reactive power allocation unit, for being less than Q when the reactive power value to be compensatedsmin, then distributed to pusher side and net side
Reactive power value size are as follows: Qsref=Qsmin, Qgref=Qgmin；
4th reactive power allocation unit, for being greater than Q when the reactive power value to be compensatedsmin, then distributed to pusher side and net side
Reactive power value size are as follows: Qsref=Qref, Qgref=0；
Wherein, QrefIndicate the reactive power value to be compensated, QsrefIndicate pusher side reactive power value to be compensated, QgrefIndicate net side
Reactive power value to be compensated, QsmaxIndicate the maximum reactive power value that pusher side can issue, QsminIndicate that pusher side can issue most
Small reactive power value, QgmaxIndicate the maximum reactive power value that net side can issue, QgminIndicate the minimum nothing that net side can issue
Function performance number.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324747A (en) * | 2011-08-17 | 2012-01-18 | 国电联合动力技术有限公司 | Control method for double-feed wind power generation unit to support reactive power regulation of wind farm |
| CN103281022A (en) * | 2013-05-29 | 2013-09-04 | 重庆交通大学 | Double-efficiency fuzzy optimization control method for doubly-fed wind generator |
| CN103368187A (en) * | 2013-07-12 | 2013-10-23 | 上海电力学院 | Reactive coordination control method based on improved wind generating set |
-
2017
- 2017-01-25 CN CN201710057127.0A patent/CN107069799B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324747A (en) * | 2011-08-17 | 2012-01-18 | 国电联合动力技术有限公司 | Control method for double-feed wind power generation unit to support reactive power regulation of wind farm |
| CN103281022A (en) * | 2013-05-29 | 2013-09-04 | 重庆交通大学 | Double-efficiency fuzzy optimization control method for doubly-fed wind generator |
| CN103368187A (en) * | 2013-07-12 | 2013-10-23 | 上海电力学院 | Reactive coordination control method based on improved wind generating set |
Non-Patent Citations (2)
| Title |
|---|
| 双馈风电机组低电压穿越能力的提高;李鸿儒，金炜东，胡立锦;《电力系统及其自动化学报》;20131031;第25卷(第5期);第7～12页 * |
| 提高双馈风力发电机并网系统暂态稳定性的控制策略;徐超等;《电工电能新技术》;20150630;第34卷(第6期);第45～51页 * |
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