CN105978041A - Active power control method for wind power station configured with marker post draught fans - Google Patents
Active power control method for wind power station configured with marker post draught fans Download PDFInfo
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- CN105978041A CN105978041A CN201610168079.8A CN201610168079A CN105978041A CN 105978041 A CN105978041 A CN 105978041A CN 201610168079 A CN201610168079 A CN 201610168079A CN 105978041 A CN105978041 A CN 105978041A
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- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003550 marker Substances 0.000 title abstract 3
- 244000287680 Garcinia dulcis Species 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000001276 controlling effect Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
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- 238000010248 power generation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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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
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- H02J3/386—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/76—Power conversion electric or electronic aspects
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Positive-Displacement Air Blowers (AREA)
Abstract
The invention provides an active power control method for a wind power station configured with marker post draught fans, which comprises the steps of S1, classifying draught fans of a wind field into marker post draught fans which do not participate in limited power regulation and adjustable draught fans which participate in limited power regulation; S2, reading an active power control instruction P<E> which is automatically inputted or from a scheduling system, acquiring the real-time operating state of each draught fan and calculating the actual total active power P<total> of the wind field; S3, calculating whether a difference value abs (P<total>-P<E>) of the actual total active power P<total> of the wind field and the active control instruction P<E> is in the range of a control dead zone P<dead zone> or not, if the abs (P<total>-P<E>) is less than the P<dead zone>, returning back to the step 2, and if the (P<total>-P<E>) is greater than the P<dead zone>, getting into power reduction control, and if the (P<total>-P<E>) is less than negative P<dead zone>, getting to power lifting control. Active power allocation is carried out according to a principle that the maximum output active power of the draught fans is allocated in proportion. The active power control method provided by the invention enables as many adjustable draught fans as possible to participate in regulation with small amplitude according to the principle that the maximum output active power is allocated in proportion, thereby being capable of ensuring the power regulation speed and the power regulation precision.
Description
Technical field
The present invention relates to field of electrical equipment, particularly to a kind of active power of wind power field configuring mark post blower fan
Control method.
Background technology
Owing to wind-resources utilizes the continuous ripe of technology, wind-power electricity generation becomes generation of electricity by new energy skill with fastest developing speed
Art, development wind-powered electricity generation becomes and improves the measure that Economical Operation of Power Systems is particularly important.
Attending by the long-term energy policy greatly developing wind energy, China's wind-powered electricity generation career development is rapid, wind-driven generator
Group single-machine capacity and Construction of Wind Power scale expanding day, Wind turbines is sent to the significantly ripple of the power of electrical network
Move and the stable operation of electrical network will be brought increasing adverse effect.Therefore, it is achieved to wind power
Modulatory character be problem in the urgent need to address.
Wind energy turbine set real power control mode takes leave of the most coarse manual adjustment mode the most substantially at present, has opened
Merit power automatic control mode.But the most mostly control algolithm adds wind power prediction data, due to wind-powered electricity generation
Wind power prediction system and actual motion is caused to there is bigger deviation with the uncertainty of load, so that
Control algolithm control accuracies based on wind power prediction data are poor.Though it addition, also some control algolithm does not adds
Enter the data of wind power prediction, but during it controls, response speed is slower.
Summary of the invention
In view of this, the present invention proposes a kind of wind power station active power control method configuring mark post blower fan, makes
Obtain adjustable fan as much as possible participation regulation more by a small margin, it is ensured that power is regulated the speed and precision.
On the one hand, the invention provides a kind of wind power station active power control method configuring mark post blower fan, bag
Include following steps:
Step 1: wind field blower fan is divided into the mark post blower fan being not involved in limiting power adjustments and participates in limit power adjustments
Adjustable fan；
Step 2: read the real power control instruction P automatically entering or issuing from dispatching patcherE, obtain each wind
The real-time running state of machine also calculates the actual total meritorious P of wind fieldAlways；
Step 3: calculate the actual total meritorious P of wind fieldAlwaysP is instructed with real power controlEDifference | PAlways-PE| whether controlling
Dead band PDead bandIn the range of；If | PAlways-PE|<PDead band, then step 2 is returned；If PAlways-PE>PDead band, then fall power is entered
Control；If PAlways-PE<-PDead band, then enter power per liter and control；During fall power controls and power per liter controls,
Maximum according to adjustable fan can be sent out the principle of meritorious pro-rata and carry out active power distribution.
Further, fall power controls to comprise the following steps:
Step 4.1: judge whether to have grid-connected blower fan in addition to mark post blower fan；If it did not, according to power difference
PAlways-PEActual with mark post blower fan has work value, calculates the mark post blower fan number of units that need to shut down and shuts down, returning step
Rapid 2；If it has, enter step 4.2；
Step 4.2: judge whether that limited power reaches the adjustable fan of lower limit；If it did not, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post)pi'/∑pi' pro rate is meritorious exerts oneself, and calculates the limit of adjustable fan
Power percentage Rlimit, issue control instruction, return step 2；If limited power reaches the wind adjustable of lower limit
Machine, then enter step 4.3；
Step 4.3: judge whether that limited power is not up to the adjustable fan of lower limit；If it has, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post-PL7)pi'/∑pi' pro rate is meritorious exerts oneself, and calculates adjustable fan
Limit power percentage Rlimit, issue control instruction, return step 2；Blowing-out machine is needed if it is not, calculate
Number of units, issues halt instruction, returns step 2；
PMark postAlways gain merit for mark post blower fan, pi' maximum meritorious exerting oneself can be sent out for participating in the separate unit adjustable fan of regulation,
∑pi' for participating in the meritorious sum of exerting oneself of all adjustable fan maximums of regulation；PL7The power that is limited reaches lower limit
All adjustable fans are always gained merit.
Further, power per liter controls to comprise the following steps:
Step 5.1: determine whether the blower fan started；If it has, then return step 2；If it did not,
Then enter step 5.2；
Step 5.2: determine whether to be in the mark post blower fan of manual shut-down；If it has, then by mark post blower fan by
Platform opens machine；If it is not, enter step 5.3；
Step 5.3: determine whether adjustable fan；Blower fan number of units need to be started if it is not, calculate, issue
Open machine instruction, return step 2；If it has, then enter step 5.4；
Step 5.4: judge whether that limited power is not up to the adjustable fan of the upper limit；Need to open if it did not, calculate
Machine blower fan number of units, issues and opens machine instruction, return step 2；If it has, what limit power was not up to the upper limit can
Adjust blower fan by (PE-PMark post)pi'/∑pi' pro rate gains merit, and issue control instruction, return step 2；
PMark postAlways gain merit for mark post blower fan, pi' maximum meritorious exerting oneself can be sent out for participating in the separate unit adjustable fan of regulation,
∑pi' for participating in the meritorious sum of exerting oneself of all adjustable fan maximums of regulation.
Further, limit power percentage Rlimit=7 refer to that adjustable fan limit power reaches lower limit.
Further, in step 2, calculate mark post blower fan always to gain merit PMark post, calculate limit power and reach lower limit
Adjustable fan is always gained merit PL7, find out the adjustable fan of limit power not up to lower limit, limit power reaches lower limit can
Adjust blower fan, manual shut-down blower fan, calculate the separate unit adjustable fan participating in regulating and can send out the maximum meritorious p that exerts oneselfi'。
A kind of wind power station active power control method configuring mark post blower fan of the present invention, divides wind field blower fan
For being not involved in limiting the mark post blower fan of power adjustments and participating in the adjustable fan of limit power adjustments；It is easy to wind energy turbine set pair
The analysis of fan performance, reduces Fan Regulation quantity and the amplitude of accommodation, it is ensured that power is regulated the speed and precision.
Owing to current wind power prediction system accuracy is poor, data handling procedure of the present invention is not used wind power
The data of prediction, and the principle of meritorious pro-rata can be sent out according to maximum so that wind adjustable as much as possible
Machine participation regulation more by a small margin, it is ensured that power is regulated the speed and precision.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, and the present invention shows
Meaning property embodiment and explanation thereof are used for explaining the present invention, are not intended that inappropriate limitation of the present invention.At accompanying drawing
In:
Fig. 1 is a kind of wind power station active power control method schematic diagram configuring mark post blower fan of the present invention.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment
Can be mutually combined.Also interengaging embodiment describes the present invention in detail below with reference to the accompanying drawings.
Engage Fig. 1, being preferably described in further detail the present invention below.
Mark post blower fan of the present invention refers to be only involved in start and stop control and is not involved in limiting power adjustments, changes bag
Talking about is exactly not to be adjusted the active power of mark post blower fan, only boots up mark post blower fan and shuts down control
System.
Adjustable fan of the present invention refers to be possible not only to participate in start and stop control and can participate in limiting power
Regulation, changing bag and talking about is can be adjusted the active power of adjustable fan.
Real power control of the present invention instruction PERefer to that dispatching patcher issues target active power, in other words
It it is exactly target generated energy.
The actual total meritorious P of wind field of the present inventionAlwaysRefer to wind field actual power generation.
Controlling dead error P of the present inventionDead bandRefer to the actual total meritorious P of wind fieldAlwaysP is instructed with real power controlEDifference
The error amount allowed.
The adjustable fan that limit power of the present invention reaches lower limit refers to that the limit power percentage of adjustable fan reaches
To the lower limit preset.
The adjustable fan of limit power not up to lower limit of the present invention refers to the limit power percentage of adjustable fan
The lower limit not up to preset.
The adjustable fan of the limit power not up to upper limit of the present invention refers to the limit power percentage of adjustable fan
The higher limit not up to preset.
Mark post blower fan of the present invention is always gained merit PMark postRefer to wind field all mark posts blower fan total active power it
Close.
P of the present inventioni' maximum meritorious exerting oneself, ∑ p can be sent out for participating in the separate unit adjustable fan of regulationi' for participating in adjusting
The meritorious sum of exerting oneself of all adjustable fan maximums of joint；PL7All adjustable fans that the power that is limited reaches lower limit are total
Meritorious.
As it is shown in figure 1, a kind of wind power station active power control method configuring mark post blower fan of the present invention, bag
Include following steps:
Step 1: wind field blower fan is divided into the mark post blower fan being not involved in limiting power adjustments and participates in limit power adjustments
Adjustable fan；
Step 2: read the real power control instruction P automatically entering or issuing from dispatching patcherE, obtain each wind
The real-time running state of machine also calculates the actual total meritorious P of wind fieldAlways；Calculate mark post blower fan always to gain merit PMark post, calculate
Limit power reaches the adjustable fan of lower limit and always gains merit PL7, find out limit power and be not up to the adjustable fan of lower limit, limit
Power reaches the adjustable fan of lower limit, manual shut-down blower fan, calculates limit power and is not up to the adjustable fan of lower limit
Maximum can send out the meritorious p that exerts oneselfi', and adjustable fan maximum can send out the meritorious p that exerts oneselfi'。
Step 3: calculate the actual total meritorious P of wind fieldAlwaysP is instructed with real power controlEDifference | PAlways-PE| whether controlling
Dead band PDead bandIn the range of；If | PAlways-PE|<PDead band, then step 2 is returned；If PAlways-PE>PDead band, then fall power is entered
Control；If PAlways-PE<-PDead band, then enter power per liter and control.Fall power controls to be to reduce the meritorious control exerted oneself.
Power per liter is to improve the meritorious control exerted oneself.During fall power controls and power per liter controls, according to adjustable
The maximum of blower fan can be sent out the principle of meritorious pro-rata and carry out active power distribution.According to adjustable fan
The principle that can send out greatly meritorious pro-rata carries out active power distribution, in other words can be multiple meritorious
Adjustable fan distributes more active power, it is impossible to the active power that multiple meritorious adjustable fan distribution is less,
Namely able people should do more work, and principle carries out pro rate.
Fall power controls to comprise the following steps:
Step 4.1: judge whether to have grid-connected blower fan in addition to mark post blower fan；If it did not, according to power difference
PAlways-PEActual with mark post blower fan has work value, calculates the mark post blower fan number of units that need to shut down and shuts down, returning step
Rapid 2；If it has, enter step 4.2；
Step 4.2: judge whether that limited power reaches the adjustable fan of lower limit；If it did not, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post)pi'/∑pi' pro rate is meritorious exerts oneself, and makes the maximum of adjustable fan
The principle that can send out meritorious pro-rata carries out active power distribution.Calculate the limit power percentage of adjustable fan
Rlimit, issue control instruction, return step 2；If limited power reaches the adjustable fan of lower limit, then enter
Step 4.3；
Step 4.3: judge whether that limited power is not up to the adjustable fan of lower limit；If it has, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post-PL7)pi'/∑pi' pro rate is meritorious exerts oneself, and makes adjustable fan
The maximum principle that can send out meritorious pro-rata carries out active power distribution.Calculate the limit power hundred of adjustable fan
Proportion by subtraction Rlimit, issue control instruction, return step 2；Blowing-out board number is needed, now if it is not, calculate
Need blowing-out machine to refer generally to limit power and reach the adjustable fan of lower limit, limit power is reached under the adjustable fan of lower limit
Send out halt instruction, return step 2；
Power per liter controls to comprise the following steps:
Step 5.1: determine whether the blower fan started；If it has, then return step 2；If it did not,
Then enter step 5.2；
Step 5.2: determine whether to be in the mark post blower fan of manual shut-down；If it has, then by mark post blower fan by
Platform opens machine；If it is not, enter step 5.3；
Step 5.3: determine whether adjustable fan；Blower fan number of units need to be started, now if it is not, calculate
Starting blower fan is calibration bar blower fan or adjustable fan, issues and opens machine instruction, returns step 2；If it has,
Then enter step 5.4；
Step 5.4: judge whether that limited power is not up to the adjustable fan of the upper limit；Need to open if it did not, calculate
Machine blower fan number of units, now blower fan is calibration bar blower fan or adjustable fan, issues and opens machine instruction, returns step
2；If it has, the adjustable fan that limit power is not up to the upper limit is pressed(PE-PMark post)pi'/∑pi' pro rate gain merit,
And issue control instruction, return step 2.
The lower limit of the present embodiment is 7, and adjustable fan limit power reaches lower limit and refers to limit power percentage
RlimitThe adjustable fan of=7.Lower limit and higher limit can be designed according to practical situation.Controlling dead error PDead band
Can be designed according to practical situation.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. made, should be included in the present invention
Protection domain within.
Claims (5)
1. the wind power station active power control method configuring mark post blower fan, it is characterised in that include following
Step:
Step 1: wind field blower fan is divided into the mark post blower fan being not involved in limiting power adjustments and participates in limit power adjustments
Adjustable fan；
Step 2: read the real power control instruction P automatically entering or issuing from dispatching patcherE, obtain each wind
The real-time running state of machine also calculates the actual total meritorious P of wind fieldAlways；
Step 3: calculate the actual total meritorious P of wind fieldAlwaysP is instructed with real power controlEDifference | PAlways-PE| whether controlling
Dead band PDead bandIn the range of；If | PAlways-PE| ＜ PDead band, then step 2 is returned；If PAlways-PE>PDead band, then fall power is entered
Control；If PAlways-PE＜-PDead band, then enter power per liter and control；During fall power controls and power per liter controls,
Maximum according to adjustable fan can be sent out the principle of meritorious pro-rata and carry out active power distribution.
The wind power station active power control method of configuration mark post blower fan the most according to claim 1, it is special
Levying and be, fall power controls to comprise the following steps:
Step 4.1: judge whether to have grid-connected blower fan in addition to mark post blower fan；If it did not, according to power difference
PAlways-PEActual with mark post blower fan has work value, calculates the mark post blower fan number of units that need to shut down and shuts down, returning step
Rapid 2；If it has, enter step 4.2；
Step 4.2: judge whether that limited power reaches the adjustable fan of lower limit；If it did not, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post)p′i/∑p′iPro rate is meritorious exerts oneself, and calculates the limit of adjustable fan
Power percentage Rlimit, issue control instruction, return step 2；If limited power reaches the wind adjustable of lower limit
Machine, then enter step 4.3；
Step 4.3: judge whether that limited power is not up to the adjustable fan of lower limit；If it has, to limit power not
Reach the adjustable fan of lower limit by (PE-PMark post-PL7)p′i/∑p′iPro rate is meritorious exerts oneself, and calculates adjustable fan
Limit power percentage Rlimit, issue control instruction, return step 2；Blowing-out machine is needed if it is not, calculate
Number of units, issues halt instruction, returns step 2；
PMark postAlways gain merit for mark post blower fan, p 'iSeparate unit adjustable fan for participating in regulating can be sent out maximum gaining merit and exert oneself,
∑p′iFor participating in the meritorious sum of exerting oneself of all adjustable fan maximums of regulation；PL7The power that is limited reaches lower limit
All adjustable fans are always gained merit.
The wind power station active power control method of configuration mark post blower fan the most according to claim 1, it is special
Levying and be, power per liter controls to comprise the following steps:
Step 5.1: determine whether the blower fan started；If it has, then return step 2；If it did not,
Then enter step 5.2；
Step 5.2: determine whether to be in the mark post blower fan of manual shut-down；If it has, then by mark post blower fan by
Platform opens machine；If it is not, enter step 5.3；
Step 5.3: determine whether adjustable fan；Blower fan number of units need to be started if it is not, calculate, issue
Open machine instruction, return step 2；If it has, then enter step 5.4；
Step 5.4: judge whether that limited power is not up to the adjustable fan of the upper limit；Need to open if it did not, calculate
Machine blower fan number of units, issues and opens machine instruction, return step 2；If it has, what limit power was not up to the upper limit can
Adjust blower fan by (PE-PMark post)p′i/∑p′iPro rate is gained merit, and issues control instruction, returns step 2；
PMark postAlways gain merit for mark post blower fan, p 'iSeparate unit adjustable fan for participating in regulating can be sent out maximum gaining merit and exert oneself,
∑p′iFor participating in the meritorious sum of exerting oneself of all adjustable fan maximums of regulation.
The wind power station active power control method of configuration mark post blower fan the most according to claim 2, it is special
Levy and be, limit power percentage Rlimit=7 refer to that adjustable fan limit power reaches lower limit.
5. according to the active power of wind power field control of the configuration mark post blower fan described in Claims 1-4 any one
Method processed, it is characterised in that in step 2, calculates mark post blower fan and always gains merit PMark post, calculate limit power and reach
Adjustable fan to lower limit is always gained merit PL7, find out limit power not up to lower limit adjustable fan, limit power reach
The adjustable fan of lower limit, manual shut-down blower fan, calculate the separate unit adjustable fan participating in regulating and can send out maximum meritorious
Exert oneself p 'i。
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Cited By (9)
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| CN107453411A (en) * | 2017-07-07 | 2017-12-08 | 成都阜特科技股份有限公司 | A kind of wind power station active power control method and its system |
| CN108242823A (en) * | 2016-12-26 | 2018-07-03 | 北京金风科创风电设备有限公司 | The distribution method and device of active power of wind power field |
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| CN111614088A (en) * | 2020-06-09 | 2020-09-01 | 三一重能有限公司 | Energy management method considering wake flow influence |
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Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: Sany Heavy Energy Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY Co.,Ltd. Address after: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee after: SANY HEAVY ENERGY Co.,Ltd. Address before: 102206 31 Industrial Park, North Qing Road, Beijing, Changping District Patentee before: SANY HEAVY ENERGY EQUIPMENT Co.,Ltd. |