CN107313901B - A kind of appraisal procedure and device of the loss of Wind turbines generated energy - Google Patents
A kind of appraisal procedure and device of the loss of Wind turbines generated energy Download PDFInfo
- Publication number
- CN107313901B CN107313901B CN201710706535.4A CN201710706535A CN107313901B CN 107313901 B CN107313901 B CN 107313901B CN 201710706535 A CN201710706535 A CN 201710706535A CN 107313901 B CN107313901 B CN 107313901B
- Authority
- CN
- China
- Prior art keywords
- wind
- mark post
- generated energy
- wind turbines
- appraisal procedure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
Abstract
The invention discloses the appraisal procedures and device of a kind of loss of Wind turbines generated energy, the method includes the steps: according to the theoretical power curve of the mark post annual mean wind speed of wind power plant and mark post monthly average wind speed corresponding wind frequency division cloth and Wind turbines, calculate the year mark post generated energy E of the Wind turbinesK mark post, the moon equivalent generated output P of mark postThe equivalent mark post of km；Calculate substitute generation amount E of the Wind turbines under the operation of drop power output, spare and down stateK substitution；Calculate the accumulative theoretical power generation E of the Wind turbines under normal operating conditionsK theory operates normally；Calculate the practical power generation coefficient of discharge δ with theoryk；Calculate the final loss generated energy Δ E of the Wind turbinesk.The appraisal procedure and device of Wind turbines generated energy loss disclosed by the invention, non- wind-resources are eliminated in the calculating of theoretical power generation influences the interference of state, reduce the error of final loss generated energy and actual loss generated energy, it solves the variation of mark post generated energy, eliminates theoretical power curve bring absolute error.
Description
Technical field
A kind of lost the present invention relates to technical field of wind power generation more particularly to Wind turbines generated energy appraisal procedure and
Device.
Background technique
2016, national wind-powered electricity generation was kept fit growth momentum, and whole year, newly-increased wind-powered electricity generation was installed 19,300,000 kilowatts, added up grid-connected dress
Machine capacity reaches 1.49 hundred million kilowatts, accounts for the 9% of whole capacities of installed generator, and 241,000,000,000 kilowatt hour of wind power generation capacity accounts for whole hairs
The 4% of electricity.Spatially there is apparent uneven, good regional, the developable area of wind-resources in the wind-resources distribution in China
Domain is more and more limited, and the space of exploitation is increasingly turned to the poor area of wind-resources.Meanwhile as market competition increases, wind-powered electricity generation
Owner and investor increasingly pay attention to power generation.The benefit in power station arises directly from generated energy, and the quality of current year wind-resources
A material risk that is obvious, while also becoming owner and investor is influenced for the generated energy of power station current year.In order to quantify this
Risk, wind turbine power generation amount is lower than the method for mark post value caused by must just having the assessment of a set of science to fluctuate because of current year wind-resources.
The existing appraisal procedure to wind turbine power generation amount mainly includes two classes:
One kind is the method for calculating abandonment electricity, and the core algorithm of abandonment electricity is to calculate actual power generation and theory
The difference of generated energy.Wind power plant abandonment be usually because power grid reason can not accommodate unit it is current send out capacity.Therefore, abandonment
Electricity is only related with practical wind-resources, not related with design or expected wind-resources.
Another kind of is the algorithm applied to index derivative product, and the core algorithm of the index derivative product is to calculate theoretical generated energy
With the difference of mark post generated energy.Mark post generated energy is manually set with reference to wind energy turbine set wind-resources situation, therefore this method is indirect
Expected wind-resources are considered, but due to not considering the other factors of influence generated energy, cause the basis risk of the product larger.
Basis risk refers to should correct still after the difference of theoretical power generation and actual power generation and mark post generated energy are interfered
Difference caused by not being modified.Due to the presence of basis risk, this kind of product it is not very practical.
Summary of the invention
It is a primary object of the present invention to propose the appraisal procedure and device of a kind of Wind turbines generated energy loss, it is intended to solve
Problem certainly of the existing technology.
To achieve the above object, first aspect of the embodiment of the present invention provides a kind of assessment side of Wind turbines generated energy loss
Method, the method includes the steps:
According to the mark post annual mean wind speed of wind power plant and the corresponding wind frequency division cloth of mark post monthly average wind speed and Wind turbines
Theoretical power curve calculates the year mark post generated energy E of the Wind turbinesK mark post, the moon equivalent generated output P of mark postThe equivalent mark post of km；
According to the equivalent generated output P of moon mark postThe equivalent mark post of km, the Wind turbines are calculated in drop power output operation, spare and can not
With the substitute generation amount E under stateK substitution；
According to the theoretical power curve of blower, the accumulative theoretical power generation of the Wind turbines under normal operating conditions is calculated
Measure EK theory operates normally；
Obtain the actual measurement total power generation E of the Wind turbinesK actual measurement, the Wind turbines contribute under operation operating status in drop
Actual measurement generated energy EK actual measurement drop power output operation, and according to EK actual measurement、EK actual measurement drop power output operation、EK theory operates normally, determine the proportion of goods damagedsIt calculates practical and theoretical
Power generation coefficient of discharge δk；
According to the determining proportion of goods damagedsEK theory operates normally、EK substitution、EK mark postAnd the practical power generation coefficient of discharge δ with theoryk, calculate institute
State the final loss generated energy Δ E of Wind turbinesk。
Optionally, the year mark post generated energy E of the Wind turbinesK mark postIt is calculated by the following method:
Wherein PThe equivalent mark post of kFor the equivalent generated output of year mark post,
Pk(Vi) be kth platform Wind turbines theoretical power curve, FMark post(Vi) be
The mark post wind frequency division cloth of wind power plant, NIt surveysFor FMark post(Vi) sample size, ViFor the mean wind speed of i-th of sample, N is time interval
The quantity of t,Or
Optionally, the equivalent generated output P of the moon mark postThe equivalent mark post of kmIt is calculated by the following method:
Wherein Pk(Vj) be kth platform Wind turbines theoretical power curve,
FM mark post(Vj) be the wind power plant m month mark post wind frequency division cloth, NSurvey mFor FM mark post(Vj) sample size, VjFor being averaged for j-th sample
Wind speed.
Optionally, the substitute generation amount EK substitutionIt is calculated by the following method:
EK substitution=EK mark post drop power output+EK mark post is spare+EK mark post is unavailable；Wherein,
For kth platform Wind turbines, power output operation, spare and down state difference are dropped
The moon number of appearance；mDrop power output operation、mIt is spare、mIt is unavailableRespectively indicate the operation of drop power output, spare and down state occurs in the m month；Indicate the operation of kth platform Wind turbines drop power output, spare and unavailable three kinds of states respectively the
Quantity in m months interval；iDrop power output operation、iIt is spare、iIt is unavailableRespectively indicate i-th of time interval.
Optionally, the accumulative theoretical power generation EK theory operates normallyIt is calculated by the following method:
Wherein, Pk(V1) be kth platform Wind turbines theoretical power curve, NK is operated normallyFor kth platform Wind turbines normal operation
Time interval t quantity under state.
Optionally, the reality and theoretical power generation coefficient of discharge δkIt is calculate by the following formula:
Optionally, the final loss generated energy Δ EkIt is calculate by the following formula:
ΔEk=Δ EK is theoretical×δk, wherein
Optionally, the corresponding wind frequency division cloth of mark post annual mean wind speed and mark post monthly average wind speed of the wind power plant by with
Under type determines:
With reference to the wind-resources assessment that the survey wind data of anemometer tower is made, the mark post annual mean wind speed and mark post of wind power plant are determined
The corresponding wind frequency division cloth of monthly average wind speed.
Optionally, the method also includes steps:
According to the final loss generated energy Δ E of the Wind turbinesk, wind power plant is calculated compared in the case of mark post wind-resources
Revenue losses Δ R；WhereinL is the Wind turbines of wind power plant
Total quantity,
In addition, to achieve the above object, second aspect of the embodiment of the present invention provides a kind of Wind turbines generated energy loss
Assess device, the assessment device of Wind turbines generated energy loss includes: memory, processor and is stored in the memory
The appraisal procedure that Wind turbines generated energy that is upper and can running on the processor loses, the Wind turbines generated energy loss
Appraisal procedure the assessments of the described in any item Wind turbines generated energy losses of first aspect is realized when being executed by the processor
The step of method.
The appraisal procedure and device of a kind of Wind turbines generated energy loss provided in an embodiment of the present invention, in theoretical power generation
Calculating in eliminate non-wind-resources and influence the interference of state, reduce the mistake of final loss generated energy and actual loss generated energy
Difference solves the variation of mark post generated energy, eliminates theoretical power curve bring absolute error.
Detailed description of the invention
Fig. 1 is the appraisal procedure flow diagram that the Wind turbines generated energy of the embodiment of the present invention loses；
Fig. 2 is the assessment apparatus structure schematic diagram that the Wind turbines generated energy of the embodiment of the present invention loses；
Fig. 3 is the wind frequency distribution schematic diagram of the wind power plant of the embodiment of the present invention；
Fig. 4 is the theoretical power curve schematic diagram of the Wind turbines of the embodiment of the present invention；
Fig. 5 is the equivalent generated output structural schematic diagram of the embodiment of the present invention.
The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.
Specific embodiment
It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.
The each embodiment of the present invention is realized in description with reference to the drawings.In subsequent description, using for indicating
The suffix of such as " module ", " component " or " unit " of element is only for being conducive to explanation of the invention, and there is no special for itself
Fixed meaning.
It will be further appreciated that the term "and/or" used in description of the invention and the appended claims is
Refer to any combination and all possible combinations of one or more of associated item listed, and including these combinations.
First embodiment
As shown in Figure 1, first embodiment of the invention provides a kind of appraisal procedure of Wind turbines generated energy loss, the side
Method comprising steps of
11, according to the mark post annual mean wind speed of wind power plant and the corresponding wind frequency division cloth of mark post monthly average wind speed and Wind turbines
Theoretical power curve, calculate the year mark post generated energy E of the Wind turbinesK mark post, the moon equivalent generated output P of mark postThe equivalent mark post of km；
In the present embodiment, the year mark post generated energy E of the Wind turbinesK mark postIt is calculated by the following method:
Wherein PThe equivalent mark post of kFor the equivalent generated output of year mark post,
Pk(V1) be kth platform Wind turbines theoretical power curve, FMark post(Vi) be
The mark post wind frequency division cloth of wind power plant, NIt surveysFor FMark post(Vi) sample size, ViFor the mean wind speed of i-th of sample, N is time interval
The quantity of t,Or
With it is upper similarly, moon mark post generated energy EKm mark postIt can be calculated by the following method:
In the present embodiment, the equivalent generated output P of the moon mark postThe equivalent mark post of kmIt is calculated by the following method:
Wherein Pk(Vj) be kth platform Wind turbines theoretical power curve,
FM mark post(Vj) be the wind power plant m month mark post wind frequency division cloth, NSurvey mFor FM mark post(Vj) sample size, VjFor being averaged for j-th sample
Wind speed.
In other embodiments, the moon equivalent generated output P of mark postThe equivalent mark post of kmP can be usedK mark post is monthlyTo replace also can be achieved on
's.Wherein,That is EK mark post is monthlyIt is EK mark postAfter averagely assigning to December, every month
Average generated energy；PK mark post is monthlyIt is EK mark post is monthlyMean power after assigning to per hour.PThe equivalent mark post of kmIt is based on mark post monthly average wind speed
Wind frequency division cloth combination power curve acquire, principle is completely different.
In the present embodiment, the corresponding wind frequency division cloth of mark post annual mean wind speed and mark post monthly average wind speed of the wind power plant
It determines in the following manner:
With reference to the wind-resources assessment that the survey wind data of anemometer tower is made, the mark post annual mean wind speed and mark post of wind power plant are determined
The corresponding wind frequency division cloth of monthly average wind speed.
It should be noted that theoretical power generation and mark post generated energy be all by theoretical power curve calculate come.And it manages
By a power curve inherently Utopian wind speed/blower power output corresponding relationship line.Meanwhile because measurement error or other people
It is very big for theoretical power curve caused by factor and actual variance.But in this method, theoretical power generation and mark post generated energy are used
Same theoretical power curve, makes calculated result there was only relative error, without absolute error.
12, according to the equivalent generated output P of moon mark postThe equivalent mark post of km, the Wind turbines are calculated in drop power output operation, spare and not
Substitute generation amount E under available modeK substitution；
In the present embodiment, the substitute generation amount EK substitutionIt is calculated by the following method:
EK substitution=EK mark post drop power output+EK mark post is spare+EK mark post is unavailable；Wherein,
For kth platform Wind turbines, power output operation, spare and down state difference are dropped
The moon number of appearance；mDrop power output operation、mIt is spare、mIt is unavailableRespectively indicate the operation of drop power output, spare and down state occurs in the m month；Indicate the operation of kth platform Wind turbines drop power output, spare and unavailable three kinds of states respectively the
The time interval quantity occurred the m month；iDrop power output operation、iIt is spare、iIt is unavailableRespectively indicate i-th of time interval.
It should be noted that influencing the interference of state, this reality to exclude non-wind-resources in the calculating of theoretical power generation
Applying example and distinguishing in wind turbine power generation amount influences completely irrelevant state with wind-resources.Specifically, the present embodiment carries out the state of blower
Divide: when blower is in normal operating condition, the generated energy of blower is related to wind-resources situation；When blower is in drop power output
When operating status, the generated energy of blower is related with maximum limit generated energy, unrelated with wind-resources situation；When blower is in stand-by state
When with down state, blower is generated without generated energy.Therefore wind-resources influence state and refer to that blower is in normal operating condition, non-wind money
Source influences state and refers to that blower is in drop power output, spare and down state.As illustratively, can refer to shown in below table:
It should also be noted that, by introducing substitute generation amount EK substitution, can avoid subsequent adjustment mark post generated energy, solve
The problem of application difficult.
13, according to the theoretical power curve of blower, the accumulative theory of the Wind turbines under normal operating conditions is calculated
Generated energy EK theory operates normally；
In the present embodiment, the accumulative theoretical power generation EK theory operates normallyIt is calculated by the following method:
Wherein, Pk(V1) be kth platform Wind turbines theoretical power curve, NK is operated normallyFor kth platform Wind turbines normal operation
Time interval t quantity under state.
With it is upper similarly, the Wind turbines are in the operation of drop power output, the accumulative theoretical power generation under spare and down state
Measure EThe drop power output operation of k theory、EK theory is spare、EK theory is unavailableIt is calculated by the following method:
Wherein, NK drop power output operationThe time interval t quantity of drop power output operating status is in for kth platform Wind turbines；NK is spareFor kth
Platform Wind turbines are in the time interval t quantity of stand-by state, NK is unavailableFor kth platform Wind turbines be in down state when
Between be spaced t quantity.
In the present embodiment, the accumulative theoretical power generation of kth platform Wind turbines
EK is theoretical=EK theory operates normally+EThe drop power output operation of k theory+EK theory is spare+EK theory is unavailable, and have:
N=NK is operated normally+NK drop power output operation+NK is spare+NK is unavailable。
14, the actual measurement total power generation E of the Wind turbines is obtainedK actual measurement, the Wind turbines contribute operation operation shape in drop
Actual measurement generated energy E under stateK actual measurement drop power output operation, and according to EK actual measurement、EK actual measurement drop power output operation、EK theory operates normally, determine the proportion of goods damagedsCalculate it is practical with
Theoretical power generation coefficient of discharge δk；
In the present embodiment, the reality and theoretical power generation coefficient of discharge δkIt is calculate by the following formula:
By introducing the practical power generation coefficient of discharge δ with theoryk, the final loss generated energy knot calculated can have been further reduced
The absolute error of fruit and actual loss generated energy.
It should be noted thatDetermine loss factor, generally
15, according to the determining proportion of goods damagedsEK theory operates normally、EK substitution、EK mark postAnd the practical power generation coefficient of discharge δ with theoryk, meter
Calculate the final loss generated energy Δ E of the Wind turbinesk。
In the present embodiment, the final loss generated energy Δ EkIt is calculate by the following formula:
ΔEk=Δ EK is theoretical×δk, whereinBy δkSubstitute into the formula
It can be obtained later,
Further, the method may also include step (attached drawing is not shown):
According to the final loss generated energy Δ E of the Wind turbinesk, wind power plant is calculated compared in the case of mark post wind-resources
Revenue losses Δ R；WhereinL is the Wind turbines of wind power plant
Total quantity,
In the present embodiment, electricity volume refers to the wind power plant of wind power plant and power grid Source of Gateway Meter metering in measurement period to electricity
The electric energy of conveying is netted, unit is ten thousand kilowatt hours (ten thousand kWh)；
Off line electricity refers to the electric energy that wind power plant and the power grid of power grid Source of Gateway Meter metering are conveyed to wind power plant in measurement period,
Unit is ten thousand kilowatt hours (ten thousand kWh)；
It sends out line loss per unit and refers to that the interior consumption of measurement period accounts for the percentage of whole audience generated energy in the electricity that wind power plant sends out line.
Do not consider to send out line condition, when only calculating the Δ R in wind power plant, sends out line loss per unit and be equal to zero.
Further to illustrate the embodiment of the present invention one, now it is described in detail by taking Fig. 3-Fig. 5 as an example.
Assuming that certain wind field has the blower of 33 single-machine capacity 1.5MW, the certainty loss factor of blowerIt is comprehensive
Field power consumption rate 5%, sends out line loss per unit 5%, 0.5 yuan/kw of rate for incorporation into the power network.Many years annual mean wind speed is 6.64m/s, wind frequency division cloth
It can refer to shown in Fig. 3, the theoretical power curve of blower can refer to shown in Fig. 4, and equivalent generated output can refer to as shown in Figure 5.
1) it, excludes to influence completely irrelevant state with wind-resources in wind turbine power generation amount
It, can according to 12:30-2017 on May 1st, 2016 12:30 anemometer tower on May 1 and kth Fans SCADA data
To obtain practical anemometer tower annual mean wind speed for 5.596m/s, since time interval is 5 minutes, when whole year has 105120
Between be spaced, wherein spare and down state 8928, all occurring in December, 2016, drop power output operating status 518.
The theoretical power generation in kth Fans December is EK12 is theoretical, after being averaged according to annual mark post generated energy, mark monthly
Bar generated energy is EK mark post is monthly, then have: EK mark post is monthly=353184kw.
And according to the P in DecemberThe equivalent mark post of k12Have:
Meanwhile the theoretical power generation E of the blower in DecemberK12 is theoretical=270281kw, actual power generation EK12 actual measurement=0kw.Therefore
It was obvious that if not distinguishing the result of fan condition:
1., theoretical power generation being calculated one month than actual measurement generated energy more, cause theoretical and actual error to increase, and miss
The reason of difference increases is not because of wind-resources problem；
2. and using EK12 mark post, do not use EK mark post is monthly, it is because of EK mark post is monthly<EK12 mark post.If blower in December operates normally,
The electricity of sending can reduce the gap with annual mark post generated energy.Therefore when blower is unable to run, should use can characterize 12
The mark post generated energy of month wind-resources (can operate normally generated energy plus this part in theory, can also send out from mark post to substitute
This part is subtracted in electricity.)
2) it, solves mark post generated energy and changes and eliminate theoretical power curve bring absolute error
After rejecting non-wind effect state, it can be found that the characteristics of being unevenly distributed due to wind-resources in the moon, leads to non-wind shadow
The state of sound can send out mark post at part month (the characteristics of these months is that its monthly average wind speed deviation annual mean wind speed is more)
Electricity is fixed really to be rung greatly.For example this example whole month in December failure is answered if being also bound to unfairness using original mark post generated energy
It adjusts to mark post generated energy.Due to that in practical applications, should determine mark post generated energy in advance.And subsequent non-wind effect state
It is uncertain, cause to determine that mark post generated energy is infeasible in advance.Therefore substitute generation amount E is introducedK substitutionConcept, it is therefore an objective to reduce non-
The error of result caused by wind effect state is uncertain.It is as follows:
Wherein EK theory operates normally、EK substitution、EK mark postIt is all made of same theoretical power curve, therefore solves theoretical power (horse-power) simultaneously
Absolute error caused by curve.
3), reduce the error of final calculation result and actual loss generated energy
Actual measurement generated energy generally includes normal operating condition and limit power rating institute generated energy, therefore can reject drop power output
The actual power generation E of stateK actual measurement drop power output, EK actual measurement drop power output=40077kw.
Then have, EK actual measurement operates normally=3413247kw；
Corresponding EK theory operates normally=2632090kw.
It is obvious that surveying generated energy after rejecting non-wind effect state and theoretical power generation gap being very big.It is main to influence
The reason is as follows that:
1., theoretical power generation use anemometer tower air speed data, it is big with the actual wind speed data differences of blower position.This is poor
It is not mostly derived from the influence of distance, landform, wind direction, neighbouring blower wake flow.Even if using the nacelle wind speed instrument error there is also.
2., theoretical power curve and actual power curve have deviation.Theoretical power curve is Utopian curve, and practical
Power curve is a kind of similar probability distribution in scatter plot.
3., there is also some control errors for the yaw system of blower.
Nevertheless, within for the same period under blower normal operating condition, distance, landform, neighbouring blower
Wake effect, yaw system control error can be regarded as it is constant.Thus it can be assumed that using anemometer tower survey wind data with
The theoretical power generation and actual power generation that theoretical power curve calculates should have certain close to linear relationship.Therefore, it introduces real
Border and theoretical power generation coefficient of discharge δk,
The practical power generation coefficient of discharge δ with theorykIt solves the divide problem between theoretical power generation and actual power generation, allows
Calculated result and actual conditions are close.
δk=1.85, Δ Ek=Δ EK is theoretical×δk=-1268852kw
Assuming that 33 Fans, and Δ EkIt is identical, then have:
It will be theoretically more close with actual conditions according to the Δ R that this algorithm calculates.
The appraisal procedure of a kind of Wind turbines generated energy loss provided in an embodiment of the present invention, in the calculating of theoretical power generation
In eliminate non-wind-resources and influence the interference of state, reduce the error of final loss generated energy and actual loss generated energy, solve
Mark post generated energy of having determined changes, and eliminates theoretical power curve bring absolute error.
Second embodiment
Referring to Fig. 2, Fig. 2 provides a kind of assessment device of Wind turbines generated energy loss, institute for second embodiment of the invention
The assessment device 20 for stating the loss of Wind turbines generated energy includes: memory 21, processor 22 and is stored on the memory 21
And the appraisal procedure for the Wind turbines generated energy loss that can be run on the processor 22, the Wind turbines generated energy loss
Appraisal procedure the assessment side of the loss of Wind turbines generated energy described in first embodiment is realized when being executed by the processor 22
The step of method.
The assessment device of a kind of Wind turbines generated energy loss provided in an embodiment of the present invention, in the calculating of theoretical power generation
In eliminate non-wind-resources and influence the interference of state, reduce the error of final loss generated energy and actual loss generated energy, solve
Mark post generated energy of having determined changes, and eliminates theoretical power curve bring absolute error.
It should be noted that, in this document, the terms "include", "comprise" or its any other variant are intended to non-row
His property includes, so that the process, method, article or the device that include a series of elements not only include those elements, and
And further include other elements that are not explicitly listed, or further include for this process, method, article or device institute it is intrinsic
Element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including being somebody's turn to do
There is also other identical elements in the process, method of element, article or device.
The above is only a preferred embodiment of the present invention, is not intended to limit the scope of the invention, all to utilize this hair
Equivalent structure or equivalent flow shift made by bright specification and accompanying drawing content is applied directly or indirectly in other relevant skills
Art field, is included within the scope of the present invention.
Claims (10)
1. a kind of appraisal procedure of Wind turbines generated energy loss, the method includes the steps:
According to the theory of the mark post annual mean wind speed of wind power plant and mark post monthly average wind speed corresponding wind frequency division cloth and Wind turbines
Power curve calculates the year mark post generated energy E of the Wind turbinesK mark post, the moon equivalent generated output P of mark postThe equivalent mark post of km；
According to the equivalent generated output P of moon mark postThe equivalent mark post of km, the Wind turbines are calculated in the operation of drop power output, spare and unavailable shape
Substitute generation amount E under stateK substitution；
According to the theoretical power curve of blower, the accumulative theoretical power generation of the Wind turbines under normal operating conditions is calculated
EK theory operates normally；
Obtain the actual measurement total power generation E of the Wind turbinesK actual measurement, the reality contributed under operation operating status in drop of the Wind turbines
Survey generated energy EK actual measurement drop power output operation, and according to EK actual measurement、EK actual measurement drop power output operation、EK theory operates normally, determine the proportion of goods damagedsCalculate the practical hair with theory
Quantity coefficient δk；
According to the determining proportion of goods damagedsEK theory operates normally、EK substitution、EK mark postAnd the practical power generation coefficient of discharge δ with theoryk, calculate the wind
The final loss generated energy Δ E of motor groupk。
2. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that the wind-powered electricity generation
The year mark post generated energy E of unitK mark postIt is calculated by the following method:
Wherein PThe equivalent mark post of kFor the equivalent generated output of year mark post,
Pk(Vi) be kth platform Wind turbines theoretical power curve, FMark post(Vi) it is wind-powered electricity generation
The mark post wind frequency division cloth of field, NIt surveysFor FMark post(Vi) sample size, ViFor the mean wind speed of i-th of sample, N is time interval t's
Quantity,Or N=(366 × 24 × 60)/t=527040/t.
3. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that the moon mark
The equivalent generated output P of barThe equivalent mark post of kmIt is calculated by the following method:
Wherein Pk(Vj) be kth platform Wind turbines theoretical power curve, FM mark post
(Vj) be the wind power plant m month mark post wind frequency division cloth, NSurvey mFor FM mark post(Vj) sample size, VjFor the average wind of j-th of sample
Speed.
4. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that the substitution
Generated energy EK substitutionIt is calculated by the following method:
EK substitution=EK mark post drop power output+EK mark post is spare+EK mark post is unavailable；
Wherein,
Power output operation drops for kth platform Wind turbines, spare and down state occurs respectively
Moon number；mDrop power output operation、mIt is spare、mIt is unavailableRespectively indicate the operation of drop power output, spare and down state occurs in the m month；Indicate that the operation of kth platform Wind turbines drop power output, spare and unavailable three kinds of states exist respectively
Quantity in the m months interval；iDrop power output operation、iIt is spare、iIt is unavailableRespectively indicate i-th of time interval.
5. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that described accumulative
Theoretical power generation EK theory operates normallyIt is calculated by the following method:
Wherein, Pk(Vi) be kth platform Wind turbines theoretical power curve, ViFor the mean wind speed of i-th of sample, NK is operated normallyIt is
Time interval t quantity under k platform Wind turbines normal operating condition.
6. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that the reality
With theoretical power generation coefficient of discharge δkIt is calculate by the following formula: δk =(Ek Actual measurement-Ek Actual measurement drop power output operation)/(Ek Theory operates normally×
ϕk ) 。
7. a kind of appraisal procedure of Wind turbines generated energy loss according to claim 1, which is characterized in that described final
Lose generated energy Δ EkIt is calculate by the following formula:
ΔEk=Δ EK is theoretical×δk, wherein Δ Ek It is theoretical=(Ek Theory operates normally+ Ek Substitution- Ek Mark post) ×φ k。
8. the appraisal procedure of -7 any a kind of Wind turbines generated energy losses according to claim 1, which is characterized in that institute
The mark post annual mean wind speed and the corresponding wind frequency division cloth of mark post monthly average wind speed for stating wind power plant determine in the following manner:
With reference to the wind-resources assessment that the survey wind data of anemometer tower is made, determine that the mark post annual mean wind speed of wind power plant and the mark post moon are flat
The corresponding wind frequency division cloth of equal wind speed.
9. the appraisal procedure of -7 any a kind of Wind turbines generated energy losses according to claim 1, which is characterized in that institute
The method of stating further comprises the steps of:
According to the final loss generated energy Δ E of the Wind turbinesk, wind power plant is calculated compared to the income in the case of mark post wind-resources
Lose Δ R；WhereinL is the Wind turbines of wind power plant
Total quantity,
10. a kind of assessment device of Wind turbines generated energy loss, which is characterized in that the Wind turbines generated energy loss is commented
Estimate device to include: memory, processor and be stored in the Wind turbines that can be run on the memory and on the processor
The appraisal procedure of the appraisal procedure of generated energy loss, the Wind turbines generated energy loss is realized such as when being executed by the processor
The step of appraisal procedure of the loss of Wind turbines generated energy described in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706535.4A CN107313901B (en) | 2017-08-17 | 2017-08-17 | A kind of appraisal procedure and device of the loss of Wind turbines generated energy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706535.4A CN107313901B (en) | 2017-08-17 | 2017-08-17 | A kind of appraisal procedure and device of the loss of Wind turbines generated energy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313901A CN107313901A (en) | 2017-11-03 |
| CN107313901B true CN107313901B (en) | 2019-05-07 |
Family
ID=60177209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710706535.4A Active CN107313901B (en) | 2017-08-17 | 2017-08-17 | A kind of appraisal procedure and device of the loss of Wind turbines generated energy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313901B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108985625A (en) * | 2018-07-16 | 2018-12-11 | 浙江电腾云光伏科技有限公司 | A kind of photovoltaic apparatus operating analysis method |
| CN109086253A (en) * | 2018-07-20 | 2018-12-25 | 西安西热电站信息技术有限公司 | A kind of Wind turbines loss electricity calculation method based on reliability dimension |
| CN110836171A (en) * | 2018-08-19 | 2020-02-25 | 北京国电思达科技有限公司 | Fan technical improvement optimization effect evaluation method and system based on unit anemometry system |
| CN108960688B (en) * | 2018-08-30 | 2023-06-30 | 北京光耀电力科技股份有限公司 | Comprehensive management system of wind turbine generator system |
| CN109087033A (en) * | 2018-09-28 | 2018-12-25 | 龙源（北京）风电工程技术有限公司 | A kind of comprehensive field power consumption rate calculating analysis system of wind power plant |
| CN112231361B (en) * | 2020-10-28 | 2023-08-18 | 西安热工研究院有限公司 | Wind power project power generation amount evaluation method based on fan operation data |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2392226B1 (en) * | 2009-12-16 | 2013-10-10 | Gamesa Innovation & Technology, S.L. | METHODS OF AIRCRAFT CONTROL TO IMPROVE ENERGY PRODUCTION RECOVERING ENERGY LOSSES. |
| JP2014199055A (en) * | 2013-03-13 | 2014-10-23 | 豊田通商株式会社 | Power generator |
| EP2824321A1 (en) * | 2013-07-08 | 2015-01-14 | Moog Unna GmbH | Method for loading of an electric emergency energy storage |
| CN104112236B (en) * | 2014-05-29 | 2018-04-27 | 国家电网公司 | The computational methods of wind power plant generated output |
| CN106321368B (en) * | 2016-08-12 | 2019-02-15 | 峰能斯格尔（北京）可再生能源科技有限公司 | Marine wind electric field wake losses measurement method based on operation blower SCADA data |
-
2017
- 2017-08-17 CN CN201710706535.4A patent/CN107313901B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313901A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107313901B (en) | A kind of appraisal procedure and device of the loss of Wind turbines generated energy | |
| Kök et al. | Impact of electricity pricing policies on renewable energy investments and carbon emissions | |
| US9822765B2 (en) | Wind power plant control system | |
| Amor et al. | Influence of wind power on hourly electricity prices and GHG (greenhouse gas) emissions: Evidence that congestion matters from Ontario zonal data | |
| CN106058848B (en) | A kind of unit generation schedule and spinning reserve Optimum method a few days ago considered under frequency security constraint | |
| Aman et al. | Investigating possible wind energy potential to meet the power shortage in Karachi | |
| US20090281820A1 (en) | Method and system to quantify performance of a power generating system | |
| WO2011101189A2 (en) | Energy generating system and control thereof | |
| Liang et al. | Operational reliability and economics of power systems with considering frequency control processes | |
| Bletterie et al. | On the characterisation of PV inverters' efficiency—introduction to the concept of achievable efficiency | |
| CN109995090A (en) | Consider the method for providing multiple forms of energy to complement each other of user demand feature and using energy source cost | |
| Gholami et al. | Optimum storage sizing in a hybrid wind-battery energy system considering power fluctuation characteristics | |
| CN103277250A (en) | Assessment method for large-scale wind electricity base discard wind electric quantity based on range pole machine sets | |
| AU2012215468B2 (en) | Method for determining uncollected energy | |
| Teng et al. | Provision of ancillary services in future low-carbon UK electricity system | |
| Al Kez et al. | Manipulation of static and dynamic data center power responses to support grid operations | |
| EP2587610B1 (en) | Systems and methods for adaptive power determination in power generating systems | |
| Ensslin et al. | Online monitoring of 1700 MW wind capacity in a utility supply area | |
| Shin et al. | Comparative analysis of degradation rates for inland and seaside wind turbines in compliance with the International Electrotechnical Commission standard | |
| CN106684931A (en) | Active control method and system of new-energy power plant | |
| CN114026591A (en) | Distributed account book for constrained transaction with power grid to ensure stability of power grid | |
| Su et al. | A coordinative optimization method of active power and fatigue distribution in onshore wind farms | |
| Majumder et al. | KPI for Solar PV-diesel hybrid mini grids in remote islands of Bangladesh | |
| Braun et al. | Value of PV energy in germany-benefit from the substitution of conventional power plants and local power generation | |
| Lysenko et al. | Hybrid Power System Stochastic Optimization |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |