CN110308304A - A kind of zero method of wind power generating set wind direction calibration - Google Patents
A kind of zero method of wind power generating set wind direction calibration Download PDFInfo
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- CN110308304A CN110308304A CN201910566073.XA CN201910566073A CN110308304A CN 110308304 A CN110308304 A CN 110308304A CN 201910566073 A CN201910566073 A CN 201910566073A CN 110308304 A CN110308304 A CN 110308304A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P13/00—Indicating or recording presence, absence, or direction, of movement
- G01P13/02—Indicating direction only, e.g. by weather vane
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
Abstract
The invention discloses a kind of zero methods of wind power generating set wind direction calibration, comprising the following steps: 1) Wind turbines enter wind direction calibration null mode；2) adjustment angle of vane compensation, collects and records fan operation data；3) fan operation efficiency Model is constructed for the first time and calculates the corresponding wind vane angle correction of optimum efficiency；4) secondary wind direction mark angle compensation direction is judged according to step 3) calculated result, adjust angle of vane compensation again, collect and record fan operation data；5) it reconstructs fan operation efficiency Model and calculates the corresponding wind vane angle correction of optimum efficiency；6) automatic zero adjustment is carried out to wind vane according to step 5) calculated result or issues prompt information.The present invention fully considers influence when wind vane zero-bit and cabin axis generate angle to Wind turbines generating efficiency, blower continuous service can be made in optimal power output state, the working strength and security risk for reducing operation maintenance personnel, ensure the operational efficiency and gene-ration revenue of Wind turbines.
Description
Technical field
The present invention relates to wind-driven generator field more particularly to a kind of zero methods of wind power generating set wind direction calibration.
Background technique
In recent years, as Wind turbines installation quantity is increasing, wind field owner and host manufacturer focus are constantly from dress
Machine capacity changes to fan operation efficiency, and blower how to be made to guarantee optimal power output to a certain extent, improves wind turbine power generation performance,
Promoting blower availability and completely hair hourage has great researching value and directive significance.
Wind turbines after running for a period of time, since wind vane is there are the influence such as systematic error and random error, cause
Certain offset occurs for wind vane zero-bit and cabin axis, influences fan yaw control precision, reduces wind turbine power generation efficiency.Periodically
It is the effective way for solving the problems, such as this by manual calibration wind vane, but this kind of method needs to greatly increase cost of labor and presence
Certain random error and potential risk.It is therefore, most important by a kind of method for judging automatically and correcting wind vane zero-bit,
It is also the important means for promoting Wind turbines power generation performance.
Summary of the invention
In order to solve the above technical problem, the present invention provides one kind can fully take into account Wind turbines design and operation ginseng
Number can make blower continuous service in optimal power output state, reduce the working strength and security risk of operation maintenance personnel, ensure wind turbine
The operational efficiency of group and zero method of wind power generating set wind direction calibration of gene-ration revenue.
The technical solution adopted by the present invention is that: a kind of zero method of wind power generating set wind direction calibration, comprising the following steps:
1) make Wind turbines enter wind direction calibration null mode, start to carry out wind direction calibration zero；
2) adjustment angle of vane compensation, collects and records fan operation data；
3) fan operation efficiency Model is constructed for the first time, and calculates the corresponding wind vane angle correction of optimum efficiency；
4) result calculated according to step 3) judges secondary wind direction mark angle compensation direction, collects and records fan operation number
According to；
5) fan operation efficiency Model is reconstructed, and calculates the corresponding wind vane angle correction of optimum efficiency；
6) automatic zero adjustment is carried out to wind vane according to step 5) calculated result or issues prompt information.
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 1), according to specified time cycle T1It is fixed
Phase or single execute wind direction calibration idle task；When Wind turbines execute wind direction calibration idle task, unit enters wind direction calibration zero
Mode.
In above-mentioned zero method of wind power generating set wind direction calibration, the concrete operations of the step 2) are as follows:
2.1) Wind turbines wind vane offset angle is set to 0 °；
2.2) operation data acquisition module is according to data-oriented collection period T2Acquisition blower real-time running data simultaneously records
Into data storage module, acquisition data include: hub rotation speed ωrot, nacelle wind speed Vw, power of fan amplitude limit value Plim, blower
State Kst, yaw to wind error angle θerr, wind vane offset angle θos, atmospheric density ρ；
2.3) data computation module will acquire data by given calculating cycle T above3It calculates a mean value and records to number
According in storage module；
2.4) when fan operation state and running environment meet to provisioning request, data computation module falls into a trap step 2.3)
It calculates result to record into data storage module, and with calculating power generation efficiency according to fan operation state and environmental parameter；
2.5) 2.3) -2.4 are repeated several times), record obtains the multiple groups fan operation data at wind vane compensation angle.
2.6) blower wind vane carries out angle of vane compensation along first direction according to appointed interval respectively, after single compensation
According to step 2.3) -2.5) described collect and record multi-group data.
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 2.2), collection period is 1 second；Institute
In the step 2.3) stated, calculating cycle is 10 minutes.
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 2.4), power generation efficiency is calculated
When, fan operation state and environment need what is met to require to include: a. fan operation stage is maximal wind-power tracking section；B. blower
In free-run state；C. fan operation is in normal power generation operating condition；D. the practical wind vane compensation angle of blower and currently given wind
It is consistent to mark compensation angle；E. it yaws to wind error angle in smaller range；F. the turbulence intensity that is averaged is lower than A class.
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 2.5), repeat 2.3) -2.4) time
Number is not less than 50 times；In the step 2.6), using the direction of wind vane positive direction compensation as first direction, wind vane angle is carried out
When degree compensation, it is 0 °~θ that angle of vane, which compensates section,fp°, it is divided into θb° and θb≤θfp, after the compensation of i-th angle of vane
Wind vane compensate angle are as follows: θos=θbI i=1,2,3,4 ..., wherein: i is that angle of vane compensates number, θfpFor what is given
First wind vane offset angle maximum value.
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 3): extraction step 2.6) in record
Fan operation data, fan operation feature when according to wind vane non-centering cabin axis, building wind vane compensation angle and blower are transported
Line efficiency function model, the corresponding wind vane deflecting angle θ of optimized operation efficiency in Computation function modelopt_1。
In above-mentioned zero method of wind power generating set wind direction calibration, the step 4) concrete operations are as follows:
4.1) judge that secondary wind direction mark offset angle corrects direction, as-ξ≤θopt_1When≤ξ, school directly is carried out to wind vane
Zero；Work as θopt_1When <-ξ, secondary wind direction mark offset angle is corrected in a second direction；Work as θopt_1When > ξ, secondary wind direction mark compensates angle
Degree continues to correct along first direction；
4.2) when secondary wind direction mark offset angle in a second direction or first direction correct when, carry out the compensation of secondary wind direction mark
Angle modification simultaneously obtains second-order correction fan operation data, and data capture method is as follows:
When wind vane offset angle is corrected in a second direction, according to appointed interval θb° in wind vane offset angle section
θfp' °~0 ° in carry out angle of vane compensation, single compensation after according to step 2.3) -2.5) collect and record data；N-th
Wind vane offset angle after secondary wind direction mark angle compensation are as follows: θos'=θb(- n) n=1,2,3,4 ..., wherein: n is Secondary Air
To mark angle compensation number, θfp' it is given secondary wind direction mark angle correction minimum value；
When wind vane offset angle is corrected along first direction, according to appointed interval θb° in wind vane offset angle section
For θfp°~θfp" angle of vane compensation is carried out in °, according to step 2.3) -2.5 after single compensation) data are collected and recorded, the
Wind vane offset angle after n times secondary wind direction mark angle compensation are as follows: θos"=θfp+θbN n=1,2,3,4 ..., wherein: n bis-
Secondary angle of vane compensates number, θfp" for given secondary wind direction mark angle correction maximum value and θfp″≥θfp。
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 5): extraction step 2) and step 4) in
The fan operation data of record, reconstruct wind vane compensation angle and fan operation efficiency function model, calculate optimal in reconstruction model
The corresponding wind vane deflecting angle θ of operational efficiencyopt_2。
In above-mentioned zero method of wind power generating set wind direction calibration, in the step 6), as wind vane deflecting angle θopt_2?
When within the scope of given adjust automatically, automatic zero adjustment wind vane；Otherwise issue and estimate misalignment angle prompt information, artificial school zero bias from
The biggish wind vane of angle；
Judge that automatic zero adjustment wind vane still issues prompt information with following formula:
Wherein, θoptFor the optimal school zero degree of wind vane, ξ ' is given wind vane automatic zero adjustment angle amplitude limit value.
Compared with prior art, the beneficial effects of the present invention are:
The present invention fully takes into account running of wind generating set principle and design ginseng based on Wind turbines real-time running data
Number individually calculates the optimal school zero degree of wind vane of blower for different type of machines configuration and seat in the plane point, and the present invention can be certain
Wind turbine power generation efficiency is promoted in degree, promotes wind power plant earning rate, meanwhile, greatly reduce operation maintenance personnel and go out cabin O&M risk, protects
Hinder operation maintenance personnel safety, mitigates task.
Detailed description of the invention
Fig. 1 is the method for the present invention implementation flow chart.
Fig. 2 is the method for the present invention schematic diagram.
Specific embodiment
Following further describes the present invention with reference to the drawings.
As shown in Figure 1, the present invention includes the following steps:
1) according to specified time cycle T1Regular or specified single executes wind direction calibration idle task；When Wind turbines execute wind
When to calibration idle task, so that Wind turbines enter wind direction calibration null mode, start to carry out wind direction calibration zero.
2) adjustment angle of vane compensation, collects and records fan operation data, concrete operations are as follows:
2.1) Wind turbines wind vane offset angle is set to 0 °；
2.2) operation data acquisition module acquires blower real-time running data according to data-oriented collection period and records extremely
In data storage module, collection period T2It is 1 second.Acquiring data includes: hub rotation speed ωrot, nacelle wind speed Vw, power of fan limit
Amplitude Plim, fan condition Kst, yaw to wind error angle θerr, wind vane offset angle θos, atmospheric density ρ etc..
2.3) data computation module will acquire data above and calculate a mean value by given calculating cycle and record to data
In storage module；Calculating cycle T3It is 10 minutes.
2.4) when blower is in free-run state and running environment meets to provisioning request, data computation module is by step
2.3) calculated result is recorded into data storage module in, and with calculating wind turbine power generation effect according to fan operation state and environmental parameter
Rate；
Fan operation state and environment need what is met to require to include: a. fan operation stage is maximal wind-power tracking section；
B. blower free-run state and do not occur limit powering behaviour；C. fan operation state is generating state；D. blower wind vane is mended
It is consistent with current given wind vane compensation angle to repay angle；E. it yaws to wind error angle in smaller range；F. the turbulence intensity that is averaged is low
In A class.
2.5) step 2.3) -2.4 is repeated several times), record obtains the multiple groups fan operation data at wind vane compensation angle.Weight
Multiple step 2.3) -2.4) number is not less than 50 times.
2.6) blower wind vane carries out angle of vane compensation along first direction according to appointed interval respectively, after single compensation
According to step 2.3) -2.5) described collect and record multi-group data；First direction is the direction of wind vane positive direction compensation, into
When row angle of vane compensates, it is 0 °~θ that angle of vane, which compensates section,fp°, it is divided into θb°, θb≤θfp, i-th wind vane angle
Spend compensated wind vane compensation angle are as follows: θos=θbI i=1,2,3,4 ..., wherein: i is that angle of vane compensates number, θfp
For given first wind vane offset angle maximum value, θfp≥20。
3) extraction step 2.6) in the fan operation data that record, fan operation when according to wind vane non-centering cabin axis
Feature, building wind vane compensate angle and fan operation efficiency function model, and optimized operation efficiency is corresponding in Computation function model
Wind vane deflecting angle θopt_1。
4) result calculated according to step 3) judges secondary wind direction mark angle compensation direction, collects and records fan operation number
According to；Concrete operations are as follows:
4.1) judge that secondary wind direction mark offset angle corrects direction, as-ξ≤θopt_1When≤ξ, school directly is carried out to wind vane
Zero；Work as θopt_1When <-ξ, secondary wind direction mark offset angle is corrected in a second direction；Work as θopt_1When > ξ, secondary wind direction mark compensates angle
Degree continues to correct along first direction；
4.2) when secondary wind direction mark offset angle in a second direction or first direction correct when, carry out the compensation of secondary wind direction mark
Angle modification simultaneously obtains second-order correction fan operation data, and data capture method is as follows:
When wind vane offset angle is corrected in a second direction, according to appointed interval θb° in wind vane offset angle section
θfp' °~0 ° in carry out angle of vane compensation, single compensation after according to step 2.3) -2.5) collect and record data；N-th
Wind vane offset angle after secondary wind direction mark angle compensation are as follows: θos'=θb(- n) n=1,2,3,4 ..., wherein: n is Secondary Air
To mark angle compensation number, θfp' it is given secondary wind direction mark angle correction minimum value；
When wind vane offset angle is corrected along first direction, according to appointed interval θb° in wind vane offset angle section
For θfp°~θfp" angle of vane compensation is carried out in °, according to step 2.3) -2.5 after single compensation) data are collected and recorded, the
Wind vane offset angle after n times secondary wind direction mark angle compensation are as follows: θos"=θfp+θbN n=1,2,3,4 ..., wherein: n bis-
Secondary angle of vane compensates number, θfp" for given secondary wind direction mark angle correction maximum value and θfp″≥θfp。
5) extraction step 2) and the middle fan operation data recorded of step 4), reconstruct wind vane compensation angle and fan operation effect
Rate function model calculates the corresponding wind vane deflecting angle θ of optimized operation efficiency in reconstruction modelopt_2。
6) in the step 6), as wind vane deflecting angle θopt_2When within the scope of given adjust automatically, automatic zero adjustment wind direction
Mark；Otherwise it issues and estimates misalignment angle prompt information, the larger wind vane of artificial zero deviation angle of school；
Judge that automatic zero adjustment wind vane still issues prompt information with following formula:
Wherein, θoptFor the optimal school zero degree of wind vane, ξ ' is given wind vane automatic zero adjustment angle amplitude limit value.
Claims (10)
1. a kind of zero method of wind power generating set wind direction calibration, comprising the following steps:
1) make Wind turbines enter wind direction calibration null mode, start to carry out wind direction calibration zero；
2) adjustment angle of vane compensation, collects and records fan operation data；
3) fan operation efficiency Model is constructed for the first time, and calculates the corresponding wind vane angle correction of optimum efficiency；
4) result calculated according to step 3) judges secondary wind direction mark angle compensation direction, adjusts angle of vane compensation again,
Collect and record fan operation data；
5) fan operation efficiency Model is reconstructed, and calculates the corresponding wind vane angle correction of optimum efficiency；
6) automatic zero adjustment is carried out to wind vane according to step 5) calculated result or issues prompt information.
2. zero method of wind power generating set wind direction calibration according to claim 1, in the step 1), according to specified time
Cycle T1Periodically or single executes wind direction calibration idle task；When Wind turbines execute wind direction calibration idle task, so that wind turbine
Group enters wind direction calibration null mode.
3. zero method of wind power generating set wind direction calibration according to claim 1, the concrete operations of the step 2) are as follows:
2.1) Wind turbines wind vane offset angle is set to 0 °；
2.2) operation data acquisition module is according to data-oriented collection period T2It acquires blower real-time running data and records to data
In storage module, acquisition data include: hub rotation speed ωrot, nacelle wind speed Vw, power of fan amplitude limit value Plim, fan condition Kst、
Yaw is to wind error angle θerr, wind vane offset angle θos, atmospheric density ρ；
2.3) data computation module will acquire data by given calculating cycle T above3It calculates a mean value and records to data storage
In module；
2.4) when fan operation state and running environment meet to provisioning request, data computation module will calculate knot in step 2.3)
Fruit records into data storage module, and with calculating power generation efficiency according to fan operation state and environmental parameter；
2.5) 2.3) -2.4 are repeated several times), record obtains the multiple groups fan operation data at wind vane compensation angle.
2.6) blower wind vane carries out angle of vane compensation along first direction according to appointed interval respectively, presses after single compensation
According to step 2.3) -2.5) described collect and record multi-group data.
4. zero method of wind power generating set wind direction calibration according to claim 3, in the step 2.2), collection period
It is 1 second；In the step 2.3), calculating cycle is 10 minutes.
5. zero method of wind power generating set wind direction calibration according to claim 3, in the step 2.4), blower is calculated
When generating efficiency, fan operation state and environment need what is met to require to include: a. fan operation stage is maximal wind-power tracking
Section；B. blower is in free-run state；C. fan operation is in normal power generation operating condition；D. the practical wind vane of blower compensates angle and works as
Preceding given wind vane compensation angle is consistent；E. it yaws to wind error angle in smaller range；F. the turbulence intensity that is averaged is lower than A class.
6. zero method of wind power generating set wind direction calibration according to claim 3, in the step 2.6), with wind vane
The direction of positive direction compensation is first direction, and when carrying out angle of vane compensation, it is 0 °~θ that angle of vane, which compensates section,fp°,
Between be divided into θb°, the compensated wind vane of i-th angle of vane compensates angle are as follows: θos=θbI i=1,2,3,4 ..., wherein: i
Number, θ are compensated for angle of vanefpFor given first wind vane offset angle maximum value.
7. zero method of wind power generating set wind direction calibration according to claim 3, in the step 3): extraction step 2.6)
The fan operation data of middle record, fan operation feature when according to wind vane non-centering cabin axis, building wind vane compensate angle
With fan operation efficiency function model, the corresponding wind vane deflecting angle θ of optimized operation efficiency in Computation function modelopt_1。
8. zero method of wind power generating set wind direction calibration according to claim 3, the step 4) concrete operations are as follows:
4.1) judge that secondary wind direction mark offset angle corrects direction, as-ξ≤θopt_1When≤ξ, school zero directly is carried out to wind vane；
Work as θopt_1When <-ξ, secondary wind direction mark offset angle is corrected in a second direction；Work as θopt_1When > ξ, secondary wind direction mark offset angle after
It is continuous to be corrected along first direction；
4.2) when secondary wind direction mark offset angle in a second direction or first direction correct when, carry out secondary wind direction mark offset angle
It corrects and obtains second-order correction fan operation data, data capture method is as follows:
When wind vane offset angle is corrected in a second direction, according to appointed interval θb° in wind vane offset angle section θfp′°
Angle of vane compensation is carried out in~0 °, according to step 2.3) -2.5 after single compensation) collect and record data；N-th is secondary
Wind vane offset angle after angle of vane compensation are as follows: θos'=θb(- n) n=1,2,3,4 ..., wherein: n is secondary wind direction mark
Angle compensation number, θfp' it is given secondary wind direction mark angle correction minimum value；
When wind vane offset angle is corrected along first direction, according to appointed interval θb° wind vane offset angle section be θfp°
~θfp" angle of vane compensation is carried out in °, according to step 2.3) -2.5 after single compensation) collect and record data, n-th two
Wind vane offset angle after secondary angle of vane compensation are as follows: θos"=θfp+θbN n=1,2,3,4 ..., wherein: n is Secondary Air
To mark angle compensation number, θfp" for given secondary wind direction mark angle correction maximum value and θfp″≥θfp。
9. zero method of wind power generating set wind direction calibration according to claim 8, in the step 5): extraction step 2) and
The fan operation data recorded in step 4), reconstruct wind vane compensation angle and fan operation efficiency function model, calculate reconstruct mould
The corresponding wind vane deflecting angle θ of optimized operation efficiency in typeopt_2。
10. zero method of wind power generating set wind direction calibration according to claim 9, in the step 6), when wind vane is inclined
Digression θopt_2When within the scope of given adjust automatically, automatic zero adjustment wind vane；Otherwise it issues and estimates misalignment angle prompt information, people
The biggish wind vane of zero deviation angle of work school；
Judge that automatic zero adjustment wind vane still issues prompt information with following formula:
Wherein, θoptFor the optimal school zero degree of wind vane, ξ ' is given wind vane automatic zero adjustment angle amplitude limit value.
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| CN112610427A (en) * | 2020-12-18 | 2021-04-06 | 太原重工股份有限公司 | Intelligent zero degree calibration method for blades of wind generating set |
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