CN105914796A - Wind farm active power control method - Google Patents

Wind farm active power control method Download PDF

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Publication number
CN105914796A
CN105914796A CN201610370658.0A CN201610370658A CN105914796A CN 105914796 A CN105914796 A CN 105914796A CN 201610370658 A CN201610370658 A CN 201610370658A CN 105914796 A CN105914796 A CN 105914796A
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CN
China
Prior art keywords
active power
wind
meritorious
nargin
power
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CN201610370658.0A
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Chinese (zh)
Inventor
杨晓强
胡从川
阙波
钱海
盛国栋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ducheng Green Energy Co Ltd
Ducheng Weiye Group Co Ltd
LUNENG GROUP Co Ltd
State Grid Corp of China SGCC
State Grid Zhejiang Electric Power Co Ltd
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Ducheng Green Energy Co Ltd
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Application filed by Ducheng Green Energy Co Ltd filed Critical Ducheng Green Energy Co Ltd
Priority to CN201610370658.0A priority Critical patent/CN105914796A/en
Publication of CN105914796A publication Critical patent/CN105914796A/en
Pending legal-status Critical Current

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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
    • H02J3/48—Controlling the sharing of the in-phase component
    • H02J3/386—
    • 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

Abstract

The invention discloses a wind farm active power control method comprising the following steps: measuring the active power actual value of a wind farm grid connection point, calculating the difference between the active power target value and the active power actual value of the grid connection point, recording the difference as an active power deviation, and calculating the maximum active power of each wind turbine according to the real-time wind measurement data of the wind farm grid connection point; calculating the active power addition margin coefficient and the active power reduction margin coefficient of each wind turbine unit according to the current actual active power and the maximum active power of each wind turbine unit, and arranging the active power addition margin coefficients and the active power reduction margin coefficients in order of size to generate an active power addition margin queue and an active power reduction margin queue; and determining a corresponding power regulation strategy. According to the invention, an active power regulation instruction of scheduling can be automatically assigned to a single wind turbine unit for execution, so that the labor intensity of wind farm operators is reduced greatly, and the speed of response to scheduling power target and the precision of power regulation are improved.

Description

A kind of active power of wind power station control method
Technical field
The present invention relates to technical field of wind power generation, be specifically related to a kind of active power of wind power station control method.
Background technology
In recent years, wind-power electricity generation was greatly developed as renewable and clean energy resource generating.Along with Wind turbines is installed Capacity accounts for the continuous lifting of total installation of generating capacity ratio, and Wind turbines is sent to fluctuating widely of the power of electrical network will be to electrical network Stable operation brings increasing adverse effect, therefore, it is achieved the controllable of active power of wind power field is in the urgent need to address Problem.
The active power regulation mode used in wind energy turbine set at present mostly is the mode regulated manually.Specifically, first Being carried out active power regulation by dispatching of power netwoks department by liaison mode notice wind energy turbine set, then, wind energy turbine set operator on duty will adjust The real value of sending out of the active power desired value of degree and wind energy turbine set active power now compares, then, by wind energy turbine set operator on duty Open based on the difference compared and by the control device Non-follow control Wind turbines in wind energy turbine set/stop, lifting/lowering power, in order to control The active power making wind farm grid-connected point reaches the desired value of scheduling requirement.There is following defect in this mode:
1) manually completed by operating personnel due to above-mentioned active power of wind power field regulative mode, i.e. operating personnel Receive after scheduling adjustment requires, by calculate the desired value that obtains scheduling with wind energy turbine set reality now send out between value poor Value, and according to this compare the Wind turbines in difference Non-follow control wind energy turbine set open/stop, lifting/lowering power, thus exist error big, The problems such as response speed is slow, in turn result in the loss of wind energy turbine set generated energy.
2) above-mentioned active power of wind power field regulative mode is not according to the specific works situation of Wind turbines each in wind energy turbine set And it is called and controls, but Wind turbines is opened/stop by operating personnel operation the most randomly or carries out The operation of lifting/lowering power.Therefore, above-mentioned active power of wind power field regulative mode the most highly relies on the reliable of corresponding unit work Property, but also ignore Wind turbines specific works situation (such as Wind turbines tires out because operating corresponding Wind turbines randomly Meter operation time, accumulative downtime etc.), thus some unit can be made to run for a long time always, other units are the most relatively Shutting down for a long time always, thus causing unit fault rate to promote.And, Wind turbines opens continually/stops inherently can be affected The stability of Wind turbines and security, also can affect the service life of Wind turbines simultaneously.
Summary of the invention
For solving the deficiency that prior art exists, the invention discloses a kind of active power of wind power station control method, The method can adjust the active power of wind farm grid-connected point timely and accurately, has taken into full account the reality of each Wind turbines simultaneously Working condition, improves stability and the security of running of wind generating set.
For achieving the above object, the concrete scheme of the present invention is as follows:
A kind of active power of wind power station control method, including:
Step one: measure the real value of sending out of active power obtaining wind farm grid-connected point, calculating site active power desired value The difference of sending out value real with active power, is designated as active power deviation；
Step 2: if whether the absolute value of active power deviation is more than the dead band threshold values of active power deviation, the most then turn Enter step 3, otherwise, return step one；
Step 3: survey wind data in real time according to wind farm grid-connected point, calculates the maximum active power of each Wind turbines；
Step 4: according to current real active power and the maximum active power of each Wind turbines, calculate meritorious increasing nargin Coefficient and the meritorious nargin coefficient that subtracts, foundation meritorious increasing nargin coefficient and the meritorious size order subtracting nargin coefficient arrange, and divide Increasing nargin queue of Sheng Cheng not gaining merit subtracts nargin queue with meritorious；
Step 5: calculate the meritorious increasing nargin summation of the wind adjustable group of motors of all operations, gaining merit subtracts nargin summation；
Step 6: when active power deviation is more than zero, according to all wind turbines in meritorious increasing nargin summation and start queue Magnitude relationship between value and active power deviation that the meritorious increasing nargin summation that group starts is added determines that corresponding power adjusts Strategy；
When active power deviation is less than zero, absolute value and the meritorious size subtracted between nargin summation of active power deviation are closed System determines corresponding power adjustable strategies；
Step 7: according to power adjustable strategies, send control instruction to Wind turbines, waits that Wind turbines performs instruction dynamic After completing, return step one.
Further, in step 3, when calculating the maximum active power of each Wind turbines, according to power of the assembling unit curve, Linear interpolation method is used to calculate the maximum active power of unit under current wind conditions.
Further, in step 4, being calculated as of meritorious increasing nargin coefficient:
By the i-th typhoon group of motors maximum active power under current wind conditions and the i-th typhoon group of motors active power The ratio that does of the difference of real value and the i-th typhoon group of motors maximum active power under current wind conditions is Wind turbines Meritorious increasing nargin coefficient.
Further, in step 4, gain merit and subtract being calculated as of nargin coefficient:
I-th typhoon group of motors active power is real sends out value and the difference of the i-th typhoon group of motors minimum operation power and the i-th typhoon The group of motors maximum active power under current wind conditions is done and is subtracted nargin coefficient than being the meritorious of Wind turbines.
Further, in step 5, the meritorious increasing nargin summation of the wind adjustable group of motors of all operations is by every typhoon Send out value do difference after real with Wind turbines active power of group of motors active power maximum active power is sued for peace.
Further, in step 5, the meritorious nargin summation that subtracts of the wind adjustable group of motors of all operations is for by every typhoon Real the sending out after value does difference with Wind turbines active power minimum operation power of group of motors active power is sued for peace.
Further, above-mentioned a kind of active power of wind power station control method also includes adding up according to each Wind turbines Downtime and the length of accumulated running time, generate start queue and shut down the step of queue.
Further, the generation of start queue:
This time shut down of Wind turbines is i.e. obtained unit plus the most accumulative time shut down and adds up downtime, Add up the downtime of order from long to short according to unit to arrange, generate start queue.
Further, the generation of shutdown queue:
This time run of Wind turbines is i.e. obtained unit accumulated running time plus the most accumulative time run, Arrange according to unit accumulated running time order from long to short, generate and shut down queue.
Further, in step 6, when active power deviation is more than zero:
Current meritorious increase-volume amount more than or equal to current all units can partition capacity time, the most first by the wind adjustable of all operations Group of motors active power rises to maximum active power, then according to start queue sequence starts all Wind turbines successively, and with Maximum active power is run；
When the wind adjustable group of motors of all operations all operates in maximum active power, still can not meet current meritorious increase-volume amount Requirement, the most first rises to the adjustable fan unit active power of all operations maximum active power, then depends on from start queue Secondary startup blower fan unit, until the meritorious increasing nargin summation having been turned on blower fan unit is more than or equal toOtherwise willSimilar adjustment nargin principle is used to be allocated between the blower fan unit having been turned on as meritorious increments；
When the wind adjustable group of motors of all operations all rises to maximum active power, it is possible to meet current meritorious increase-volume amount and want Ask, then from meritorious increasing nargin queue, select Wind turbines successively, until the meritorious increasing nargin summation of the Wind turbines selected More than or equal to Δ P, then similar adjustment nargin principle is used to carry out between the Wind turbines selected as meritorious increments Δ P Distribution.
Further, in step 6, when active power deviation is less than zero:
The wind adjustable group of motors of all operations all operates in minimum when running power, still can not meet current meritorious volume reduction amount Requirement, is the most first down to the wind adjustable group of motors active power of all operations the minimum power that runs, then depends on from shutdown queue Secondary stopping Wind turbines, until the meritorious nargin summation that subtracts having stopped Wind turbines being more than or equal toThen will stop Only the meritorious of Wind turbines subtracts nargin summation PstopWithDifference as meritorious increments need not shut down Similar adjustment nargin principle is used to be allocated between Wind turbines；Δ P is active power deviation,For all operations can The meritorious of Wind turbines is adjusted to subtract nargin summation；
When the wind adjustable group of motors of all operations is all down to minimum operation power, it is possible to meet current meritorious volume reduction amount and want Ask, then nargin queue selects Wind turbines successively, until the meritorious of the Wind turbines selected subtracts nargin summation from meritorious subtracting It is more than or equal to | Δ P |, then | Δ P | is used similar adjustment nargin principle as meritorious decrement between the Wind turbines selected It is allocated.
Further, current meritorious increase-volume amount more than or equal to current all units can the deterministic process of partition capacity be:
Remember that the meritorious increasing nargin summation started by all Wind turbines in start queue is Pstartup, Wherein, n is Wind turbines number of units in start queue；PimaxIt is that i-th typhoon group of motors maximum under current wind conditions is gained merit Power；
Judge whether active power deviation delta P is less thanIf be not less thanI.e. current Meritorious increase-volume amount more than or equal to current all units can partition capacity,Wind adjustable group of motors meritorious for all operations Increase nargin summation.
Further, when the wind adjustable group of motors of all operations all operates in maximum active power, still can not meet current The deterministic process of meritorious increasing capacity requirement is:
First determine whether active power deviation if less thanSecondly whether active power deviation delta P is judged It is more thanIf greater thanWhen the wind adjustable group of motors of the most all operations all operates in maximum active power, still can not Meet current meritorious increasing capacity requirement,For the meritorious increasing nargin summation of the wind adjustable group of motors of all operations, queue of starting shooting In all Wind turbines start meritorious increasing nargin summation be Pstartup。
Further, when the wind adjustable group of motors of all operations all rises to maximum active power, it is possible to meet current meritorious The deterministic process increasing capacity requirement is:
First determine whether active power deviation if less thanSecondly whether active power deviation delta P is judged It is more thanIf less thanWhen the wind adjustable group of motors of all operations all rises to maximum active power, it is possible to meet and work as Front meritorious increasing capacity requirement.
Further, the wind adjustable group of motors of all operations all operates in minimum when running power, still can not meet current Meritorious subtract capacity requirement deterministic process be:
Whether | Δ P | is more than to judge the absolute value of active power deviation delta PIf greater thanThe most all fortune The wind adjustable group of motors of row all operates in minimum when running power, still can not meet current gaining merit and subtract capacity requirement,For The meritorious of the wind adjustable group of motors of all operations subtracts nargin summation.
Further, when the wind adjustable group of motors of all operations is all down to minimum operation power, it is possible to meet current meritorious The deterministic process subtracting capacity requirement is:
Whether | Δ P | is more than to judge the absolute value of active power deviation delta PIf be not more thanThe most all fortune When the wind adjustable group of motors gone all is down to minimum operation power, it is possible to meet current gaining merit and subtracts capacity requirement,It is all The meritorious of wind adjustable group of motors run subtracts nargin summation.
Beneficial effects of the present invention:
The active power regulation instruction of scheduling can be assigned to single Wind turbines and perform by the present invention automatically, the most permissible Significantly alleviate the labour intensity of wind energy turbine set operating personnel, the response speed to scheduling power target can be improved again and power is adjusted The precision of joint, and then reduce the loss of wind energy turbine set generated energy, improve the economic benefit of wind energy turbine set；And Wind turbines frequency can be avoided Open numerously/stop, and avoid the occurrence of the problems such as some unit long-play other units shutdown the most for a long time, thus drop The fault rate of low Wind turbines, improves stability and the security of running of wind generating set, and then extends the use longevity of Wind turbines Life.
Accompanying drawing explanation
Fig. 1 is active power of wind power station control method flow chart of the present invention.
Detailed description of the invention:
The present invention is described in detail below in conjunction with the accompanying drawings:
It is illustrated in figure 1 the flow chart of active power of wind power station control method of the present invention.The present embodiment is to be to carry Go out a kind of active power that can adjust wind farm grid-connected point timely and accurately, take into full account the reality of each Wind turbines simultaneously Working condition, improves stability and the wind power station active power control method of security, its method step of running of wind generating set As follows:
(1) measurement obtains real value P of active power of wind farm grid-connected pointmea, calculate and site active power desired value PtargetSend out real with active power is worth PmeaDifference, be designated as active power deviation delta P=Ptarget-Pmea；
(2) the dead band threshold values δ of meritorious power deviation is set, if the absolute value of active power deviation | Δ P | is more than dead band valve Value δ then enters step (3), otherwise returns step (1)；
(3) according to surveying wind data in real time, the maximum active power of each Wind turbines is calculated；
According to power of the assembling unit curve, linear interpolation method is used to calculate the maximum wattful power of unit under current wind conditions Rate, computing formula is as follows:
P i m a x = P i c u r v e . k + 1 - P i c u r v e . k S i c u r v e . k + 1 - S i c u r v e . k × ( S i m e a - S i c u r v e . k ) + P i c u r v e . k ( S i c u r v e . k ≤ S i m e a ≤ S i c u r v e . k + 1 )
Wherein, Picurve.k+1、Picurve.kIt is respectively the meritorious of kth+1 and kth point in the i-th typhoon group of motors power curve Performance number, Sicurve.k+1And Sicurve.kIt is respectively kth+1 and the air speed value of kth point in the i-th typhoon group of motors power curve, SimeaIt is the wind speed instantaneous value of the i-th typhoon group of motors, PimaxIt is that i-th typhoon group of motors maximum under current wind conditions is gained merit Power.
(4) according to current real active power and the maximum active power of each Wind turbines, meritorious increasing nargin coefficient is calculated Subtract nargin coefficient with meritorious, according to meritorious increasing nargin coefficient and the meritorious size subtracting nargin coefficient, generate meritorious increasing nargin queue Nargin queue is subtracted with meritorious.Specifically comprise the following steps that
A () calculates the meritorious increasing nargin coefficient of each Wind turbinesComputing formula is as follows:
C i m arg i n a d d = P i m a x - P i m e a P i m a x
Wherein, PimeaBeing that the i-th typhoon group of motors active power is real sends out value.
The order descending according to meritorious increasing nargin coefficient arranges, and generates meritorious increasing nargin queue.
B () calculates the meritorious of each Wind turbines and subtracts nargin coefficientComputing formula is as follows:
C i m arg i n s u b = P i m e a - P i m i n P i max
Wherein, PimeaBeing that the i-th typhoon group of motors active power is real sends out value, PiminIt is that the i-th typhoon group of motors minimum runs merit Rate.
Arranging according to the meritorious order subtracting nargin coefficient descending, generating gains merit subtracts nargin queue.
(5) calculate the meritorious increasing nargin summation of the wind adjustable group of motors of all operations, gaining merit subtracts nargin summation.Concrete steps As follows:
A () calculates the meritorious increasing nargin summation of the wind adjustable group of motors of all operationsComputing formula is as follows:
P m arg i n a d d = Σ i = 1 m ( P i m a x - P i m e a )
Wherein, m is Wind turbines number of units.
B () calculates the meritorious of the wind adjustable group of motors of all operations and subtracts nargin summationComputing formula is as follows:
P m arg i n s u b = Σ i = 1 m ( P i m e a - P i m i n )
Wherein, m is Wind turbines number of units.
(6) according to accumulative downtime and the length of accumulated running time of each Wind turbines, generate start queue and stop Fleet arranges.
(1) generation of start queue；
Record this time shut down of each Wind turbines, exceed Minimum Idle Time when this time shut down of Wind turbines After, Wind turbines can join start queue, again starts shooting.
This time shut down of Wind turbines is i.e. obtained unit plus the most accumulative time shut down and adds up downtime, Add up the downtime of order from long to short according to unit to arrange, generate start queue.
(2) generation of queue is shut down；
Record this time run of each Wind turbines, exceed the shortest available machine time when this time run of Wind turbines After, Wind turbines can join shutdown queue, again shuts down.
This time run of Wind turbines is i.e. obtained unit accumulated running time plus the most accumulative time run, Arrange according to unit accumulated running time order from long to short, generate and shut down queue.
(7) according to active power deviation, power adjustable strategies is determined.
If active power deviation delta P is more than zero, go to step (A), if active power deviation delta P is less than zero, go to step (B)。
(A) the meritorious increasing nargin summation that all Wind turbines in start queue are started by note is Pstartup, Wherein, n is Wind turbines number of units in start queue.
First determine whether whether active power deviation delta P is less thanIf be not less thanI.e. Current meritorious increase-volume amount more than or equal to current all units can partition capacity, the most first the wind adjustable group of motors of all operations is gained merit Power rises to maximum active power, then according to start queue sequence starts all Wind turbines successively, and with maximum wattful power Rate is run；
If less thanSecondly judge whether active power deviation delta P is more thanIf greater thanWhen the wind adjustable group of motors of the most all operations all operates in maximum active power, still can not meet current meritorious increase-volume amount Requirement, the most first rises to the wind adjustable group of motors active power of all operations maximum active power, then depends on from start queue Secondary startup Wind turbines, until the meritorious increasing nargin summation having been turned on Wind turbines is more than or equal toOtherwise willSimilar adjustment nargin principle is used to be allocated between the blower fan unit having been turned on as meritorious increments；
If be not more thanWhen the wind adjustable group of motors of the most all operations all rises to maximum active power, it is possible to meet Current meritorious increasing capacity requirement, then select Wind turbines from meritorious increasing nargin queue successively, until the Wind turbines selected Meritorious increasing nargin summation more than or equal to Δ P, then Δ P is used similar as meritorious increments between the Wind turbines selected Adjust nargin principle to be allocated, go to step 8).
(B) whether | Δ P | is more than to first determine whether the absolute value of active power deviation delta PIf greater thanI.e. The wind adjustable group of motors of all operations all operates in minimum when running power, still can not meet current gaining merit and subtract capacity requirement, then First the wind adjustable group of motors active power of all operations is down to the minimum power that runs, then from shutdown queue, stops wind successively Group of motors, until the meritorious nargin summation that subtracts having stopped Wind turbines being more than or equal toThen will stop wind turbine The meritorious of group subtracts nargin summation Pstop(N is for stopping Wind turbines number of units) withDifference make For meritorious increments need not shut down Wind turbines between use similar adjustment nargin principle to be allocated；
If be not more thanWhen the wind adjustable group of motors of the most all operations is all down to minimum operation power, it is possible to meet Current gaining merit subtracts capacity requirement, then select Wind turbines nargin queue successively from meritorious subtracting, until the Wind turbines selected The meritorious nargin summation that subtracts be more than or equal to | Δ P |, then | Δ P | is used between the Wind turbines selected as meritorious decrement Similar adjustment nargin principle is allocated, and goes to step 8).
(8) according to power adjustable strategies, control instruction is sent to Wind turbines.
(9) after waiting that Wind turbines execution instruction action completes, step 1 is returned).
Wherein, in above-mentioned steps (7), described similar adjustment nargin principle is that the meritorious allowance size according to Wind turbines is entered Row has the distribution of work, i.e. residue is much more meritorious, it is provided that many is meritorious, and residue is meritorious few, it is provided that few is meritorious, so can ensure that Every typhoon group of motors has close active power margin.
If requiring, Wind turbines increases active power, the then active-power P of Wind turbines distributioniIt is represented by:
P i = P i m a x - P i m e a P m arg i n a d d × Δ P + P i m e a
If requiring, Wind turbines reduces active power, the then active-power P of Wind turbines distributioniIt is represented by:
P i = P i m e a - P i m i n P m arg i n s u b × Δ P + P i m e a .
In the present invention, above-mentioned maximum active power is: under current wind conditions, the maximum that Wind turbines can export Active power, that is the meritorious adjustable upper limit.
In the application, the above-mentioned minimum power that runs is: when the reality of Wind turbines sends out active power less than certain value, wind-powered electricity generation Unit will directly be shut down, that is meritorious adjustable lower limit.
In the application, the shortest above-mentioned available machine time is to the shortest time interval again shut down after Wind turbines is started shooting.
In the application, above-mentioned Minimum Idle Time is to the shortest time interval again started shooting after Wind turbines is shut down.
The present invention has fully taken into account the real work situation of Wind turbines, according to the reality of Wind turbines each in wind energy turbine set Working condition carries out conservative control rather than manually carries out power control at random its power output, therefore, it is possible to improving control While precision processed and response speed, also take into account the such as accumulated running time of each Wind turbines, accumulative downtime etc. real Border service condition, so, by rationally the calling of Wind turbines in wind energy turbine set, Wind turbines being avoided to open continually/stop, And avoid the occurrence of the problems such as some unit long-play other units shutdown the most for a long time, thus reduce Wind turbines Fault rate, improve the stability of running of wind generating set and security, and then extend the service life of Wind turbines.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.

Claims (10)

1. an active power of wind power station control method, is characterized in that, including:
Step one: measure the real value of sending out of active power obtaining wind farm grid-connected point, calculating site active power desired value and have The real difference sending out value of merit power, is designated as active power deviation；
Step 2: if whether the absolute value of active power deviation is more than the dead band threshold values of active power deviation, the most then proceed to step Rapid three, otherwise, return step one；
Step 3: survey wind data in real time according to wind farm grid-connected point, calculates the maximum active power of each Wind turbines；
Step 4: according to current real active power and the maximum active power of each Wind turbines, calculate meritorious increasing nargin coefficient Subtract nargin coefficient with meritorious, arrange with the meritorious size order subtracting nargin coefficient according to the meritorious nargin coefficient that increases, give birth to respectively Meritorious increasing nargin queue is become to subtract nargin queue with meritorious；
Step 5: calculate the meritorious increasing nargin summation of the wind adjustable group of motors of all operations, gaining merit subtracts nargin summation；
Step 6: when active power deviation is more than zero, opens according to all Wind turbines in meritorious increasing nargin summation and start queue Magnitude relationship between value and active power deviation that dynamic meritorious increasing nargin summation is added determines corresponding power adjustable strategies；
When active power deviation is less than zero, the absolute value of active power deviation and meritorious to subtract the magnitude relationship between nargin summation true Fixed corresponding power adjustable strategies；
Step 7: according to power adjustable strategies, send control instruction to Wind turbines, waits that Wind turbines performs instruction action complete Cheng Hou, returns step one.
2. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 3, and meter When calculating the maximum active power of each Wind turbines, according to power of the assembling unit curve, linear interpolation method is used to calculate in current wind speed feelings The maximum active power of unit under condition.
3. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 4, having Being calculated as of merit increasing nargin coefficient:
Send out real to the i-th typhoon group of motors maximum active power under current wind conditions and the i-th typhoon group of motors active power The ratio that does of the difference of value and the i-th typhoon group of motors maximum active power under current wind conditions is the meritorious of Wind turbines Increase nargin coefficient.
4. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 4, having Merit subtracts being calculated as of nargin coefficient:
I-th typhoon group of motors active power is real sends out value and the difference of the i-th typhoon group of motors minimum operation power and the i-th typhoon motor The group maximum active power under current wind conditions is done and is subtracted nargin coefficient than being the meritorious of Wind turbines.
5. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 5, and institute There is the meritorious increasing nargin summation of wind adjustable group of motors of operation for by every typhoon group of motors active power maximum active power and wind Real the sending out after value does difference of group of motors active power is sued for peace.
6. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 5, and institute There is the meritorious nargin summation that subtracts of wind adjustable group of motors of operation for sending out value and Wind turbines by real for every typhoon group of motors active power Active power minimum is run after power does difference and is sued for peace.
7. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, also include according to each wind The accumulative downtime of group of motors and the length of accumulated running time, generate start queue and shut down the step of queue.
8. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, the life of start queue Become:
This time shut down of Wind turbines is i.e. obtained unit plus the most accumulative time shut down and adds up downtime, according to Unit adds up the downtime of order from long to short and arranges, and generates start queue；
The generation of shutdown queue:
This time run of Wind turbines is i.e. obtained unit accumulated running time plus the most accumulative time run, according to Unit accumulated running time order from long to short arranges, and generates and shuts down queue.
9. a kind of active power of wind power station control method as claimed in claim 1, is characterized in that, in step 6, having When merit power deviation is more than zero:
Current meritorious increase-volume amount more than or equal to current all units can partition capacity time, the most first by the wind adjustable motor of all operations Group active power rises to maximum active power, then according to start queue sequence starts all Wind turbines successively, and with maximum Active power is run；
When the wind adjustable group of motors of all operations all operates in maximum active power, still can not meet current meritorious increase-volume amount and want Ask, the most first the wind adjustable group of motors active power of all operations is risen to maximum active power, then from start queue successively Start Wind turbines, until the meritorious increasing nargin summation having been turned on Wind turbines is more than or equal toOtherwise willSimilar adjustment nargin principle is used to be allocated between the blower fan unit having been turned on as meritorious increments；
When the wind adjustable group of motors of all operations all rises to maximum active power, it is possible to meet the current meritorious capacity requirement that increases, then Wind turbines is selected successively, until the meritorious increasing nargin summation of the Wind turbines selected is more than from meritorious increasing nargin queue In Δ P, then similar adjustment nargin principle is used to be allocated between the Wind turbines selected as meritorious increments Δ P.
10. a kind of active power of wind power station control method as claimed in claim 9, is characterized in that, in step 6, having When merit power deviation is less than zero:
The wind adjustable group of motors of all operations all operates in minimum when running power, still can not meet current meritorious volume reduction amount and want Ask, the most first the wind adjustable group of motors active power of all operations is down to the minimum power that runs, then from shutdown queue successively Stop Wind turbines, until the meritorious nargin summation that subtracts having stopped Wind turbines being more than or equal toThen will stop The meritorious of Wind turbines subtracts nargin summation PstopWithDifference as meritorious increments need not shut down wind Similar adjustment nargin principle is used to be allocated between group of motors；Δ P is active power deviation,Adjustable for all operations The meritorious of Wind turbines subtracts nargin summation；
When the wind adjustable group of motors of all operations is all down to minimum operation power, it is possible to meet current gaining merit and subtracts capacity requirement, then Nargin queue selects Wind turbines successively, until the meritorious nargin summation that subtracts of the Wind turbines selected is more than from meritorious subtracting In | Δ P |, then similar adjustment nargin principle is used to carry out point between the Wind turbines selected as meritorious decrement | Δ P | Join.
CN201610370658.0A 2016-05-30 2016-05-30 Wind farm active power control method Pending CN105914796A (en)

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CN106655157A (en) * 2016-10-17 2017-05-10 许继集团有限公司 Power regulation-control method and system for photovoltaic power station
CN108599275B (en) * 2018-05-30 2020-09-11 许继集团有限公司 Wind power plant fan power distribution control method and device
CN108599275A (en) * 2018-05-30 2018-09-28 许继集团有限公司 A kind of wind electric field blower power distribution control method and device
CN109193814A (en) * 2018-10-11 2019-01-11 国家电网有限公司 A kind of new energy active power distribution method, device and computer equipment
CN109586332A (en) * 2018-10-30 2019-04-05 湘电风能有限公司 A kind of active power dispatching method containing soft tower wind power plant
CN109586332B (en) * 2018-10-30 2022-02-08 湘电风能有限公司 Active power scheduling method for wind power plant with flexible tower
CN110061522A (en) * 2019-04-29 2019-07-26 明阳智慧能源集团股份公司 A kind of wind power plant automatic power generation system control method
CN110048464A (en) * 2019-05-27 2019-07-23 浙江大学 The adjustable wind power plant maximum active power output control method of single-machine capacity
CN111342499A (en) * 2020-03-05 2020-06-26 宁夏嘉泽新能源股份有限公司 Wind power plant real-time scheduling method based on wind power prediction data
CN111342499B (en) * 2020-03-05 2023-09-08 宁夏嘉泽新能源股份有限公司 Wind farm real-time scheduling method based on wind power prediction data
CN113839461A (en) * 2020-06-23 2021-12-24 北京国电思达科技有限公司 Wind power plant power management system and method
CN113852131A (en) * 2020-06-28 2021-12-28 新疆金风科技股份有限公司 Power control method and device for wind power plant
CN111894815A (en) * 2020-07-29 2020-11-06 上海电气风电集团股份有限公司 Method and device for determining power curve of wind generating set and computer readable storage medium
CN113642194A (en) * 2021-09-01 2021-11-12 中国船舶重工集团海装风电股份有限公司 Wind generating set adjustable upper limit calculation method and active power scheduling method
CN113642194B (en) * 2021-09-01 2024-02-02 中船海装风电有限公司 Wind generating set adjustable upper limit calculation method and active power scheduling method

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