CN108425796A - A kind of control method avoiding Wind turbines while passing through tower resonance region - Google Patents
A kind of control method avoiding Wind turbines while passing through tower resonance region Download PDFInfo
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- CN108425796A CN108425796A CN201810087467.2A CN201810087467A CN108425796A CN 108425796 A CN108425796 A CN 108425796A CN 201810087467 A CN201810087467 A CN 201810087467A CN 108425796 A CN108425796 A CN 108425796A
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- wind
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- tower resonance
- tower
- wind turbines
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- 238000000034 method Methods 0.000 title claims abstract description 11
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- 238000001914 filtration Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 description 6
- 238000010248 power generation Methods 0.000 description 5
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 3
- 240000002853 Nelumbo nucifera Species 0.000 description 3
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 3
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- 230000007613 environmental effect Effects 0.000 description 1
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Classifications
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- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
-
- 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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
- F03D7/0292—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power to reduce fatigue
-
- 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
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
A kind of control method avoiding Wind turbines while passing through tower resonance region, wind generating set main control system, including step 1：Measure the rotating speed of wind turbine；Step 2：The filtered device of the rotating speed for the wind turbine measured in step 1 is filtered；Step 3：The wind turbine rotating speed of filtered device filtering calculates seat in the plane point turbulence intensity；Step 4：Tower resonance region unit quantity is passed through according to wind field seat in the plane point turbulence intensity, dispatching of power netwoks instruction, request and is passing through tower resonance region unit quantity and enters wind farm management system, and then carries out wind field Wind turbines power distribution and load control algolithm；Step 5：When tower resonance region TEZ is passed through in wind power generating set request, wind farm management system determines whether the Wind turbines pass through tower resonance region.The present invention improves electric power quality, while reducing unit fatigue load, to reduce unit overall cost under the premise of ensureing running of wind generating set safety.
Description
Technical field
The present invention relates to technical field of wind power generation, are Specifically to be related to one kind to avoid Wind turbines while passing through tower resonance region
Control method.
Background technology
Wind energy is increasingly paid attention to by countries in the world as a kind of clean regenerative resource.Wind Energy In China reserves are very
Greatly, distribution is wide, only about 2.53 hundred million kilowatts of the wind energy content of land.Over nearly 5 years, world wind energy market is every year all with 40%
Speed increases.It is expected that in future 20-25, world wind energy market will be incremented by 25% every year.Now, wind power generation cost under
Drop to 1/5 in 1980.With the development of technological progress and environmental protection cause, wind power generation commercially will completely can be with fire coal
Competition in power generation.With the continuous aggravation that power industry competes, domestic outstanding electric power enterprise is increasingly paid attention to industry market
Research, the especially Depth Study of industrial environment.With the fast development of Wind Power Generation Industry in recent years, current country's large scale wind hair
Motor group manufacturing technology has tended to ripe, and as the core technology of Wind turbines, Wind turbines control technology increasingly at
Ripe, wind-power electricity generation power supply is by wind power generating set, the pylon for supporting generating set, storage battery charge controller, inverter, off-load
The compositions such as device, net-connected controller, accumulator group；Wind power generating set includes wind wheel, generator；Contain blade in wind wheel, wheel hub, add
The compositions such as firmware；It has blade by functions such as wind-force rotary electrification, the rotations of generator head.
For the wind-resources for making full use of close to the high shear plains region of the low wind speed of load center, wind power generating set usually needs
Want longer blade, higher tower.But increasing with tower, the single order natural frequency of tower will reduce, often tower
The single order natural frequency of cylinder is less than 1P, the excited frequency for the wind speed round that wherein 1P is 1 times.And modern Wind turbines are general
Using transmission technology, so-called speed change is exactly under rated wind speed, and the rotating speed of Wind turbines wind wheel changes with the change of wind speed,
Wind energy is captured mainly for maximizing, the A-B-C-G-H curves in Fig. 1 are the working curve of typical Wind turbines, this
In the case of, for the wind wheel working speed of Wind turbines from incision rotating speed A to cutting out within the scope of rotating speed G, the excited frequency of wind wheel is inevitable
It is overlapped with the single order natural frequency of tower, resonance speed point in Fig. 1 causes to resonate, and causes the prodigious fatigue load of unit.Usually
Solution be avoid unit for a long time run near resonance point, i.e., quickly pass through tower resonance region, the C-G sections in Fig. 1
TEZ resonance regions.
In order to upward（Or downwards）Quickly pass through tower resonance region, it usually needs reduce（Or increase）The torque of generator,
Even torque is equal to zero（Or rated value）, so in a short time, the generated output of the unit is reduced to zero（Or higher value）If wind-powered electricity generation
The quantity that unit passes through simultaneously is excessive, will result in the frequency fluctuation of power grid at grid entry point；
In general, whether Wind turbines pass through tower resonance region according to the condition adjudgement of itself, as passed through if meeting the condition of setting
Tower resonance region, since the wind speed size of entire wind field is similar, may cause more typhoon electricity but regardless of the state of other unit
Unit passes through tower resonance region simultaneously, due to requiring to pass rapidly through, is realized by changing the torque of generator, so in passing through
Unit changed power it is very big, cause the frequency fluctuation of power grid at grid entry point.
Before Wind turbines pass through tower resonance region upwards, running of wind generating set Fig. 1 CD sections, in the section, with wind
Speed becomes larger, and the rotating speed of wind wheel remains unchanged, and the angle of attack of such blade increases, and blade may partly enter stall zone so that leaf
The resistance coefficient of piece increases, and the thrust of entire unit is caused to increase, and especially under big turbulent flow condition, generates larger fatigue and carries
Lotus；Therefore the big unit of turbulence intensity value preferentially passes through tower resonance region upwards, can effectively reduce rack load and vibration, to
Reduce unit overall cost.
In conclusion being directed to problems of the prior art, it is necessary to provide a kind of tool serviceability, novelty and creation
The device of property.
Invention content
The present invention is big according to the changed power of the unit in existing in the prior art pass through, the frequency wave of power grid at site
The shortcomings of moving greatly, generating larger fatigue load, to provide a kind of control avoiding Wind turbines while passing through tower resonance region
Method processed improves electric power quality, while reducing unit fatigue load under the premise of ensureing running of wind generating set safety, to
It reduces unit overall cost and sends a signal to wind farm management system, wind farm management system if unit will pass through tower resonance region
It determines whether unit can execute according to the power distribution of setting and unit off-load algorithm and passes through tower resonance region.
The present invention is achieved through the following technical solutions：A kind of control avoiding Wind turbines while passing through tower resonance region
Method, including wind generating set main control system and wind farm management system；
The wind generating set main control system, specifically includes following steps：
Step 1：Measure the rotating speed of wind turbine；
Step 2：The filtered device of the rotating speed for the wind turbine measured in step 1 is filtered；
Step 3：The wind turbine rotating speed of filtered device filtering calculates seat in the plane point turbulence intensity, dispatching of power netwoks instruction, asks to get over
Tower resonance region unit quantity and passing through tower resonance region unit quantity；
Step 4：Tower resonance region unit quantity and is got over according to wind field seat in the plane point turbulence intensity, dispatching of power netwoks instruction, request
It passes through tower resonance region unit quantity and enters wind farm management system, and then carry out wind field Wind turbines power distribution and load control
Algorithm；
Step 5：When tower resonance region TEZ is passed through in wind power generating set request, wind farm management system determines that the Wind turbines are
It is no to pass through tower resonance region.
As a kind of perferred technical scheme, the step 5 specifically refers to：
When wind farm management system determines that the permission Wind turbines pass through tower resonance region for the first time, i.e., quickly pass through resonance region；
When wind farm management system determination does not allow the Wind turbines to pass through tower resonance region for the first time, Wind turbines are normally sent out
Electricity, the normal rotary work of Wind turbines, subsequently into passing through tower resonance region for the second time, when allowing to pass through tower resonance for the second time
Qu Shi enters finally into wind farm management system；When not allowing to pass through tower resonance region for the second time, Wind turbines are being fed back to just
Normal power generating stage.
As a kind of perferred technical scheme, when Wind turbines pass through tower resonance region, the power of Wind turbines allows
Zero or higher value are dropped to, to quickly pass through tower resonance region, without causing rack load to increase, while mains frequency is stablized.
Compared with prior art, with the beneficial effects of the present invention are：
（1）The present invention improves electric power quality under the premise of ensureing running of wind generating set safety, while reducing unit fatigue load
Lotus, to reduce unit overall cost；
（2）If unit of the invention will pass through tower resonance region, send a signal to wind farm management system, wind farm management system according to
The power distribution and unit off-load algorithm of setting determine whether unit can execute and pass through tower resonance region；
（3）The present invention has certain use value and promotional value, is the following wind-power electricity generation by deliberation and experiment repeatedly
First choice strategy；
（4）The present invention provides one kind and avoiding wind field Wind turbines while entering tower resonance region（TEZ）Control method, according to wind
The request of the turbulence intensity, each unit of each seat in the plane point in field passes through signal, power distribution and unit off-load algorithm and determines the wind field
Whether each unit can execute the program for quickly passing through tower resonance region.
Figure of description
Fig. 1 is the operating point schematic diagram of the wind power generating set of the present invention；
Fig. 2 is the flow diagram of the present invention.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, below in conjunction with attached drawing 1 and embodiment,
The present invention will be described in further detail.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.
In conjunction with Fig. 2, the present invention is described further：1. a kind of avoiding Wind turbines while passing through tower resonance region
Control method, which is characterized in that including wind generating set main control system and wind farm management system；
The wind generating set main control system, specifically includes following steps：
Step 1：Measure the rotating speed of wind turbine；
Step 2：The filtered device of the rotating speed for the wind turbine measured in step 1 is filtered；
Step 3：The wind turbine rotating speed of filtered device filtering calculates seat in the plane point turbulence intensity, dispatching of power netwoks instruction, asks to get over
Tower resonance region unit quantity and passing through tower resonance region unit quantity；
Step 4：Tower resonance region unit quantity and is got over according to wind field seat in the plane point turbulence intensity, dispatching of power netwoks instruction, request
It passes through tower resonance region unit quantity and enters wind farm management system, and then carry out wind field Wind turbines power distribution and load control
Algorithm；
Step 5：When tower resonance region TEZ is passed through in wind power generating set request, wind farm management system determines that the Wind turbines are
It is no to pass through tower resonance region；
The step 5 specifically refers to：
When wind farm management system determines that the permission Wind turbines pass through tower resonance region for the first time, i.e., quickly pass through resonance region；
When wind farm management system determination does not allow the Wind turbines to pass through tower resonance region for the first time, Wind turbines are normally sent out
Electricity, the normal rotary work of Wind turbines, subsequently into passing through tower resonance region for the second time, when allowing to pass through tower resonance for the second time
Qu Shi enters finally into wind farm management system；When not allowing to pass through tower resonance region for the second time, Wind turbines are being fed back to just
Normal power generating stage.
An alternative embodiment of the invention is：When Wind turbines pass through tower resonance region, the power of Wind turbines allows
Zero or higher value are dropped to, to quickly pass through tower resonance region, without causing rack load to increase, while mains frequency is stablized.
The present invention improves electric power quality under the premise of ensureing running of wind generating set safety, while reducing unit fatigue load
Lotus, to reduce unit overall cost.
If unit of the invention will pass through tower resonance region, wind farm management system, wind farm management system root are sent a signal to
It determines whether unit can execute according to the power distribution and unit off-load algorithm of setting and passes through tower resonance region.
In the description of the present invention, it is to be understood that, term " one end ", " front upper place ", " end ", " length ", " width
The orientation or position of the instructions such as degree ", "inner", "upper", " other end ", " both ends ", "horizontal", " coaxial ", " bottom ", " lower section " are closed
System is merely for convenience of description of the present invention and simplification of the description to be based on the orientation or positional relationship shown in the drawings, rather than indicates
Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand
For limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, term " setting ", " engagement ", " connection ", " embedded ",
Terms such as " the covers " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be with
It is mechanical connection, can also be electrical connection；It can be directly connected, can also can be indirectly connected through an intermediary two
The interaction relationship of connection or two elements inside a element, unless otherwise restricted clearly.For the common of this field
For technical staff, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every utilization
Equivalent structure transformation made by present specification, directly or indirectly with the technology neck for being attached to other Related products
Domain is included within the scope of the present invention.
Claims (3)
1. a kind of control method avoiding Wind turbines while passing through tower resonance region, which is characterized in that including wind-driven generator
Group master control system and wind farm management system；
The wind generating set main control system, specifically includes following steps：
Step 1：Measure the rotating speed of wind turbine；
Step 2：The filtered device of the rotating speed for the wind turbine measured in step 1 is filtered；
Step 3：The wind turbine rotating speed of filtered device filtering calculates seat in the plane point turbulence intensity, dispatching of power netwoks instruction, asks to get over
Tower resonance region unit quantity and passing through tower resonance region unit quantity；
Step 4：Tower resonance region unit quantity and is got over according to wind field seat in the plane point turbulence intensity, dispatching of power netwoks instruction, request
It passes through tower resonance region unit quantity and enters wind farm management system, and then carry out wind field Wind turbines power distribution and load control
Algorithm；
Step 5：When tower resonance region TEZ is passed through in wind power generating set request, wind farm management system determines that the Wind turbines are
It is no to pass through tower resonance region.
2. a kind of control method avoiding Wind turbines while passing through tower resonance region according to claim 1, feature
It is, the step 5 specifically refers to：
When wind farm management system determines that the permission Wind turbines pass through tower resonance region for the first time, i.e., quickly pass through resonance region；
When wind farm management system determination does not allow the Wind turbines to pass through tower resonance region for the first time, Wind turbines are normally sent out
Electricity, the normal rotary work of Wind turbines, subsequently into passing through tower resonance region for the second time, when allowing to pass through tower resonance for the second time
Qu Shi enters finally into wind farm management system；When not allowing to pass through tower resonance region for the second time, Wind turbines are being fed back to just
Normal power generating stage.
3. a kind of control method avoiding Wind turbines while passing through tower resonance region according to claim 1, feature
It is, when Wind turbines pass through tower resonance region, the power of Wind turbines allows to drop to zero or higher value, to quickly pass through
Tower resonance region, without causing rack load to increase, while mains frequency is stablized.
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| CN201810087467.2A CN108425796A (en) | 2018-01-30 | 2018-01-30 | A kind of control method avoiding Wind turbines while passing through tower resonance region |
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| CN201810087467.2A CN108425796A (en) | 2018-01-30 | 2018-01-30 | A kind of control method avoiding Wind turbines while passing through tower resonance region |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671265A (en) * | 2019-10-24 | 2020-01-10 | 合肥为民电源有限公司 | Anti-resonance control method and device for wind driven generator |
| CN111502912A (en) * | 2020-04-09 | 2020-08-07 | 浙江运达风电股份有限公司 | Method and system for controlling rotating speed resonance frequency ride-through of wind turbine generator with flexible tower |
| CN111577543A (en) * | 2020-05-22 | 2020-08-25 | 三一重能有限公司 | Wind turbine resonance zone crossing method and device, wind turbine and readable storage medium |
| CN113258604A (en) * | 2021-05-24 | 2021-08-13 | 哈电风能有限公司 | Wind power plant control method and device, electronic equipment and readable storage medium |
| CN113847196A (en) * | 2020-06-28 | 2021-12-28 | 北京金风科创风电设备有限公司 | Wind generating set and rotation avoiding speed control method and device thereof |
| CN113847197A (en) * | 2020-06-28 | 2021-12-28 | 北京金风科创风电设备有限公司 | Wind generating set and rotation avoiding speed control method and device thereof |
| CN114215689A (en) * | 2021-11-17 | 2022-03-22 | 三一重能股份有限公司 | Resonance region crossing method and system and wind driven generator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187912A (en) * | 2011-12-29 | 2013-07-03 | 中国科学院沈阳自动化研究所 | Wind driven generator torque control method for passing through resonance band quickly |
-
2018
- 2018-01-30 CN CN201810087467.2A patent/CN108425796A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187912A (en) * | 2011-12-29 | 2013-07-03 | 中国科学院沈阳自动化研究所 | Wind driven generator torque control method for passing through resonance band quickly |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110671265A (en) * | 2019-10-24 | 2020-01-10 | 合肥为民电源有限公司 | Anti-resonance control method and device for wind driven generator |
| CN111502912A (en) * | 2020-04-09 | 2020-08-07 | 浙江运达风电股份有限公司 | Method and system for controlling rotating speed resonance frequency ride-through of wind turbine generator with flexible tower |
| CN111502912B (en) * | 2020-04-09 | 2021-08-17 | 浙江运达风电股份有限公司 | Method and system for controlling rotating speed resonance frequency ride-through of wind turbine generator with flexible tower |
| CN111577543A (en) * | 2020-05-22 | 2020-08-25 | 三一重能有限公司 | Wind turbine resonance zone crossing method and device, wind turbine and readable storage medium |
| CN113847196A (en) * | 2020-06-28 | 2021-12-28 | 北京金风科创风电设备有限公司 | Wind generating set and rotation avoiding speed control method and device thereof |
| CN113847197A (en) * | 2020-06-28 | 2021-12-28 | 北京金风科创风电设备有限公司 | Wind generating set and rotation avoiding speed control method and device thereof |
| CN113847197B (en) * | 2020-06-28 | 2023-02-28 | 北京金风科创风电设备有限公司 | Wind generating set and rotation avoiding speed control method and device thereof |
| CN113258604A (en) * | 2021-05-24 | 2021-08-13 | 哈电风能有限公司 | Wind power plant control method and device, electronic equipment and readable storage medium |
| CN114215689A (en) * | 2021-11-17 | 2022-03-22 | 三一重能股份有限公司 | Resonance region crossing method and system and wind driven generator |
| CN114215689B (en) * | 2021-11-17 | 2023-10-13 | 三一重能股份有限公司 | Resonance region crossing method and system and wind driven generator |
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Application publication date: 20180821 |