CN105351153B - The performance estimating method of Wind turbines pitch control device - Google Patents
The performance estimating method of Wind turbines pitch control device Download PDFInfo
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- CN105351153B CN105351153B CN201510958178.1A CN201510958178A CN105351153B CN 105351153 B CN105351153 B CN 105351153B CN 201510958178 A CN201510958178 A CN 201510958178A CN 105351153 B CN105351153 B CN 105351153B
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Abstract
The performance estimating method of Wind turbines pitch control device, it is automatic to collect Wind turbines wind speed, generator speed actual value, generator speed desired value and the data of variable pitch instruction, using the inclined absolute value of the difference of the generator speed desired value collected online and the generator speed actual value to the actual performance integrated as current pitch control device of time；The first approximation model of variable blade control system is obtained by the system identifying method for being capable of on-line implement, further according to the first approximation model parameter of the variable blade control system of acquisition, calculates the expected performance of pitch control device；Expected performance divided by actual performance are obtained into Performance Evaluation index, Performance Evaluation index is judged whether current pitch control device performance is up to standard with default capabilities Indexes Comparison.Its purpose is to provide it is a kind of fully achieve automation, can in real time, the Wind turbines pitch control device performance estimating method of dynamic evaluation Wind turbines pitch control device performance.
Description
Technical field
The present invention relates to Wind turbines pitch control device, more particularly to the Performance Evaluation side of Wind turbines pitch control device
Method.
Background technology
The currently running wind power generating set overwhelming majority has variable blade control system, and the main of variable blade control system is appointed
Business is：When wind speed reaches more than rated value, generator speed actual value is maintained near generator speed desired value.Variable pitch
The operation principle of control system is as shown in Figure 1, pitch control device is the core of variable blade control system, and pitch control device is according to power generation
The deviation of machine rotating speed desired value and generator speed actual value calculates variable pitch angle command, and variable pitch angle command is conveyed
To variable pitch executing agency, variable pitch executing agency adjusts absorptivity of the blade to wind energy by adjusting blade angle, and then adjusts
The actual value of generator speed so that the actual value of generator speed is maintained as possible near generator speed desired value.
The regulating power of part wind field variable blade control system is insufficient at present, and generator speed reality is frequently encountered in strong wind
The maximum value that value frequently allows beyond generator speed, and then by forced-stopping machine, cause actual power curve significantly less than theory
Power curve.Wind field owner unit is often because of the problem of quality guarantee period internal power curve is unable to reach design value and system maker
Family generates dispute.The insufficient one of the main reasons of variable blade control system regulating power be pitch control device safeguard adjustment it is unreasonable,
Not in time.At present, without corresponding pitch control device performance monitoring assessment system, wind field owner unit, system maker man nothing
Method accurately grasps the normality performance of variable blade control system, during function reduction cannot automatic diagnostic analysis, cannot carry under normal condition
Preceding automatic supervision, safeguard adjustment pitch control device, only until wind turbine occur overspeed seriously cause shut down when just paid close attention to, make
Into the massive losses of generated energy.
Invention content
It is an object of the invention to fill up the technological gap of Wind turbines pitch control device Performance Evaluation problem, one kind is provided
Fully achieve automation, can in real time, the Wind turbines pitch control device of dynamic evaluation Wind turbines pitch control device performance
Performance estimating method.
The performance estimating method of Wind turbines pitch control device of the present invention, includes the following steps：
(1) when collecting more than rated wind speed online, Wind turbines wind speed, generator speed actual value, generator speed mesh
Scale value and the data of variable pitch instruction, data group V (t), ω are respectively labeled as according to sampling instant tg(t)、Pd(t)；
(2) the generator speed desired value collected online in step (1) and the generator speed actual value are calculated
Inclined absolute value of the difference to the integration of time,
And using IAE as the actual performance of current pitch control device；
(3) by being capable of the system identifying method of on-line implement, the first approximation model of variable blade control system is obtained：
Wherein, K is the gain of first approximation model, and θ is the pure delay of variable blade control system, and τ is that the first-order lag time is normal
Number, s is the Laplace transform factor, these three parameters are obtained according to following steps：
(3.1) first, according to the generator speed actual value ω that collection obtains in step (1)g(t) and variable pitch instructs Pd
(t), the amplitude of variable pitch instruction single change is obtained, labeled as Δp, the amplitude of corresponding generator speed variation is obtained, is labeled as
Δg, then the gain K of first approximation model be：
(3.2) secondly, calculate since variable pitch instruct change to generator actual speed toward changing inversely when
Between it is poor, which is the pure delay θ of the first approximation model of variable blade control system；
(3.3) then, it calculates since generator actual speed toward changing inversely until the time difference no longer changed, mark
ST is denoted as, and the first-order lag time constant of the first approximation model of determining variable blade control system is：
(4) the first approximation model parameter of the variable blade control system obtained according to step (3) calculates the phase of pitch control device
Hope performance, and labeled as IAE0, IAE0Calculation formula be：
Wherein, parameter τcIt represents and it is expected closed loop time constant, it is preferable that take τcPostpone θ's for what step (3) obtained
3-8 times；
(5) the Performance Evaluation index η of pitch control device is calculated, the calculating of Performance Evaluation index η is using in step (4)
The actual performance of pitch control device in the expected performance divided by step (2) of pitch control device, i.e.,：
(6) Performance Evaluation index η, closer to 1, illustrates that the performance of pitch control device is better between 0 to 1；More connect
0 is bordering on, the performance of pitch control device is poorer；By the Performance Evaluation index η of step (5) calculating compared with preset performance indicator,
If the Performance Evaluation index η that step (5) calculates is more than or equal to the default capabilities index, illustrate current pitch control device
Can be up to standard, the Performance Evaluation of pitch control device is terminated；Conversely, then illustrating that current pitch control device performance is not up to standard, should tie up
Shield adjustment.
The performance estimating method of Wind turbines pitch control device of the present invention, by Wind turbines generator speed actual value, hair
Motor speed desired value and air speed data are collected automatically, by the generator speed desired value collected online and the generator
The inclined absolute value of the difference of rotary speed actual value is to actual performance of the integration of time as current pitch control device；By can be online
The system identifying method of implementation obtains the first approximation model of variable blade control system, further according to the single order of the pitch control device of acquisition
Approximate model parameter calculates the expected performance of pitch control device；Expected performance divided by actual performance are obtained into Performance Evaluation index,
Performance Evaluation index is judged whether current pitch control device performance is up to standard with default capabilities Indexes Comparison.The performance of the present invention
Appraisal procedure fully achieves automation, can in real time, the function of dynamic evaluation Wind turbines pitch control device so that variable pitch control
Device processed can shift to an earlier date automatic supervision, safeguard in normal state, reduce the loss of generated energy.Wind turbine proprietor and wind turbine producer energy
Dynamic grasps the status information of wind turbine pitch-controlled system regulating power in real time, is also carried for evaluation Wind turbines miscellaneous function service
For the calculation basis of science.
The performance estimating method of the Wind turbines pitch control device of the present invention is made further specifically below in conjunction with the accompanying drawings
It is bright.
Description of the drawings
Fig. 1 is variable blade control system fundamental diagram；
Fig. 2 is Wind turbines pitch control device performance estimating method flow chart.
Specific embodiment
Referring to Fig. 2, the performance estimating method of Wind turbines pitch control device of the present invention includes the following steps：
(1) when collecting more than rated wind speed online, Wind turbines wind speed, generator speed actual value and generator speed mesh
Scale value data are respectively labeled as data group V (t), ω according to sampling instant tg(t)、
(2) the generator speed desired value collected online in step (1) and the generator speed actual value are calculated
Inclined absolute value of the difference to the integration of time,
And using IAE as the actual performance of current pitch control device；
(3) by implementing reactive optimization method, the first approximation model of variable blade control system is obtained：
Wherein, K is the gain of first approximation model, and θ is the pure delay of variable blade control system, and τ is that the first-order lag time is normal
Number, s is the Laplace transform factor, these three parameters are obtained according to following steps：
(3.1) first, according to the generator speed actual value ω that collection obtains in step (1)g(t) and variable pitch instructs Pd
(t), the amplitude of variable pitch instruction single change is obtained, labeled as Δp, the amplitude of corresponding generator speed variation is obtained, is labeled as
Δg, then the gain K of first approximation model be
(3.2) secondly, calculate since variable pitch instruct change to generator actual speed toward changing inversely when
Between it is poor, which is the pure delay θ of the first approximation model of variable blade control system；
(3.3) then, it calculates since generator actual speed toward changing inversely until the time difference no longer changed, mark
ST is denoted as, and the first-order lag time constant of the first approximation model of determining variable blade control system is
(4) the first approximation model parameter of the variable blade control system obtained according to step (3) calculates the phase of pitch control device
Hope performance, and labeled as IAE0, IAE0Calculation formula be：
Wherein, parameter τcIt represents and it is expected closed loop time constant, take τc3 times or 4 times of delay θ obtained for step (3)
Or 5 times or 6 times or 7 times or 8 times；
(5) the Performance Evaluation index η of pitch control device is calculated, the calculating of Performance Evaluation index η is using in step (4)
The actual performance of pitch control device in the expected performance divided by step (2) of pitch control device, i.e.,：
(6) Performance Evaluation index η, closer to 1, illustrates that the performance of pitch control device is better between 0 to 1；More connect
0 is bordering on, the performance of pitch control device is poorer；By the Performance Evaluation index η of step (5) calculating compared with preset performance indicator,
If the Performance Evaluation index η that step (5) calculates is more than or equal to the default capabilities index, illustrate current pitch control device
Can be up to standard, the Performance Evaluation of pitch control device is terminated；Conversely, then illustrating that current pitch control device performance is not up to standard, should tie up
Shield adjustment.Performance Evaluation index η quantitatively tells that the current pitch control device performance of user is empty from expected performance also how many improvement
Between, under normal circumstances, default capabilities setup measures are 0.8, when Performance Evaluation index η is less than 0.8, illustrate that it is necessary to improve to work as
Preceding pitch control device.
Although the embodiment of the present invention is disclosed as above, it is not restricted to listed fortune in specification and embodiment
With it can be fully applied to various fields suitable for the present invention, for those skilled in the art, can be easily real
Now other modification, therefore without departing from the general concept defined in the claims and the equivalent scope, the present invention is not limited to
Specific details and legend shown and described herein.
Claims (2)
1. the performance estimating method of Wind turbines pitch control device, it is characterised in that include the following steps：
(1) when collecting more than rated wind speed online, Wind turbines wind speed, generator speed actual value, generator speed desired value
With variable pitch instruction data, according to sampling instant t be respectively labeled as data group V (t),Pd(t)；
(2) the generator speed target ω collected online in step (1) is calculatedg(t) value and the generator speed actual value
Inclined absolute value of the difference to the integration of time：
And using IAE as the actual performance of current pitch control device；
(3) the first approximation model of variable blade control system is obtained by being capable of the system identifying method of on-line implement：
Wherein, K is the gain of first approximation model, and θ is the pure delay of variable blade control system, and τ is first-order lag time constant, s
It is the Laplace transform factor；Three parameters of the model are by being obtained as below：
(3.1) first, according to the generator speed actual value ω that collection obtains in step (1)g(t) and variable pitch instructs Pd(t), it obtains
The amplitude of variable pitch instruction single change is obtained, labeled as Δp, the amplitude that corresponding generator speed changes is obtained, labeled as Δg, then one
The gain K of rank approximate model is：
(3.2) secondly, the time difference of the past changing inversely since being changed to generator actual speed variable pitch instructs is calculated,
The time difference is the pure delay θ of the first approximation model of variable blade control system；
(3.3) then, it calculates since generator actual speed toward changing inversely until the time difference no longer changed, is labeled as
ST, and the first-order lag time constant of the first approximation model of determining variable blade control system is：
(4) the first approximation model parameter of the variable blade control system obtained according to step (3), calculates the expectation of pitch control device
Can, and labeled as IAE0, IAE0Calculation formula be：
Wherein, parameter τcIt represents and it is expected closed loop time constant, take τc3-8 times for the pure delay θ that step (3) obtains；
(5) the Performance Evaluation index η of pitch control device is calculated, the calculating of Performance Evaluation index η is to utilize the variable pitch in step (4)
The actual performance of pitch control device in the expected performance divided by step (2) of controller, i.e.,：
(6) Performance Evaluation index η, closer to 1, illustrates that the performance of pitch control device is better between 0 to 1；Closer to
0, the performance of pitch control device is poorer；By the Performance Evaluation index η of step (5) calculating compared with preset performance indicator, if
The Performance Evaluation index η that step (5) calculates is more than or equal to default capabilities index, then illustrates that current pitch control device performance is up to standard,
The Performance Evaluation of pitch control device is terminated；Conversely, then illustrating that current pitch control device performance is not up to standard, adjustment should be safeguarded.
2. the performance estimating method of Wind turbines pitch control device according to claim 1, it is characterised in that：The step
(4) τ is taken inc4-7 times of delay θ obtained for step (3).
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| CN105888987A (en) * | 2016-04-21 | 2016-08-24 | 华电电力科学研究院 | Wind generating set performance assessment method based on correlation analysis |
| CN108153289A (en) * | 2018-01-15 | 2018-06-12 | 宁波精成车业有限公司 | Driver performs the test method and circuit of mechanical action lag time difference |
| CN108594676B (en) * | 2018-04-04 | 2020-11-17 | 河海大学常州校区 | Method for quickly identifying characteristic parameters of industrial controlled process |
| CN109669486B (en) * | 2018-12-26 | 2022-03-01 | 新奥数能科技有限公司 | Controller performance evaluation method and device, readable medium and electronic equipment |
| CN113391575A (en) * | 2020-03-13 | 2021-09-14 | 新疆金风科技股份有限公司 | Method and device for identifying online state of variable pitch actuating mechanism of wind generating set |
| CN111624978B (en) * | 2020-05-11 | 2022-04-15 | 新智数字科技有限公司 | Method and device for evaluating performance of water supply flow controller |
| CN113255130B (en) * | 2021-05-24 | 2024-01-23 | 中国华能集团清洁能源技术研究院有限公司 | Method and system for evaluating control performance of wind generating set |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929432A (en) * | 2009-06-24 | 2010-12-29 | 维斯塔斯风力***集团公司 | Be used to control the method and system of the operation of wind turbine |
| CN104832371A (en) * | 2015-05-28 | 2015-08-12 | 大唐山东烟台电力开发有限公司 | Control method and system for wind generating set |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101929432A (en) * | 2009-06-24 | 2010-12-29 | 维斯塔斯风力***集团公司 | Be used to control the method and system of the operation of wind turbine |
| CN104832371A (en) * | 2015-05-28 | 2015-08-12 | 大唐山东烟台电力开发有限公司 | Control method and system for wind generating set |
Non-Patent Citations (1)
| Title |
|---|
| 变速变桨距风力发电***的逆变***控制器性能评估;耿华等;《电力电子》;20081231(第2期);第45-49页 * |
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Effective date of registration: 20160810 Address after: 102206 Beijing, Changping District North Road, No. 2, North China Electric Power University, building D, block Applicant after: China Datang Group Science & Technology Research Institute Co., Ltd. Applicant after: Datang Shandong Yantai Electric Power Development Co., Ltd. Address before: 102206, Beijing, Changping District, 2 North Road, No. 13, block D, North China Electric Power University Applicant before: China Datang Group Science & Technology Research Institute Co., Ltd. |
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