CN110206681A - Method and device for adaptively adjusting rotating speed of wind generating set - Google Patents

Method and device for adaptively adjusting rotating speed of wind generating set Download PDF

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Publication number
CN110206681A
CN110206681A CN201810169240.2A CN201810169240A CN110206681A CN 110206681 A CN110206681 A CN 110206681A CN 201810169240 A CN201810169240 A CN 201810169240A CN 110206681 A CN110206681 A CN 110206681A
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China
Prior art keywords
speed
generating set
maximum
power generating
wind power
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CN201810169240.2A
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Chinese (zh)
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CN110206681B (en
Inventor
方程
王明辉
张鹏飞
周桂林
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
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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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • 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 
    • 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
    • F03D7/0276—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/10—Purpose of the control system
    • F05B2270/101—Purpose of the control system to control rotational speed (n)
    • 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

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Wind Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

The invention provides a method and a device for adaptively adjusting the rotating speed of a wind generating set, wherein the method comprises the following steps: determining wind resources of a mounting machine site of a wind generating set; determining the starting and stopping frequency of the wind generating set, the turbulence intensity value of the installing machine site and the load of the wind generating set according to the determined wind resources; adjusting the minimum operation rotating speed of the wind generating set based on the blade passing frequency of the wind generating set, the first-order natural frequency of a tower of the wind generating set, the starting and stopping frequency and the output power of the wind generating set; and adjusting the maximum operation rotating speed of the wind generating set based on the rated rotating speed limit value of the wind generating set, the turbulence intensity value and the load. By adopting the method and the device for adaptively adjusting the rotating speed of the wind generating set, the generating performance of the wind generating set can be optimized, the running safety of the wind generating set is ensured, and the economical efficiency of the wind generating set is improved.

Description

The method and apparatus for being adaptively adjusted the revolving speed of wind power generating set
Technical field
All things considered of the present invention is related to technical field of wind power, more particularly, is related to one kind and is adaptively adjusted wind-force hair The method and apparatus of the revolving speed of motor group.
Background technique
Currently, wind power generating set usually determines a running speed section in the design phase, that is, wind power generating set exists It is run between minimum running speed (also referred to as grid-connected revolving speed) and maximum running speed (also referred to as rated speed).
However, locating external environment can change wind power generating set in the process of running, it is above-mentioned in the design phase The practical wind-resources in the fitting machine site in the running speed section and wind power generating set for the wind power generating set having determined Agree with poor, this can reduce the power generation performance of wind power generating set, it would be highly desirable to improve.
Summary of the invention
The purpose of the present invention is to provide a kind of method and apparatus of revolving speed for being adaptively adjusted wind power generating set, can To optimize the power generation performance of wind power generating set, guarantees the safety of wind power generating set operation, effectively improve wind-driven generator The economy of group.
An aspect of of the present present invention provides a kind of method of revolving speed for being adaptively adjusted wind power generating set, comprising: determines The wind-resources in the fitting machine site of the wind power generating set；Opening for the wind power generating set is determined according to determining wind-resources Shut down frequency, the turbulence intensity value in the fitting machine site and the load of the wind power generating set；Based on the wind-power electricity generation The blade passing frequency of unit, the pylon first natural frequency of the wind power generating set, the start and stop unit frequency and the wind The output power of power generator group adjusts the minimum running speed of the wind power generating set；Based on the wind power generating set Rated speed limiting value, the turbulence intensity value and the load adjust the maximum running speed of the wind power generating set.
Optionally it is determined that the step of wind-resources in the fitting machine site of the wind power generating set includes: to obtain the wind The wind-resources data in the fitting machine site of power generator group；Using wind power plant flow field simulation method, in conjunction with the wind-resources data Determine the wind speed probability density distribution and wind energy parameter in the fitting machine site of the wind power generating set, wherein the wind-resources Data include air speed data, wind direction data, atmospheric density data.
Optionally, the start and stop unit frequency of the wind power generating set, the installation seat in the plane are determined according to determining wind-resources The step of load of the turbulence intensity value and the wind power generating set put includes: to be determined using the wind speed probability density distribution The start and stop unit frequency；The turbulence intensity value is determined using the wind energy parameter；Use the wind energy parameter and the wind-force The maximum running speed of generating set determines the load.
Optionally, the step of adjusting the minimum running speed of the wind power generating set includes: minimum speed obtaining step: The current minimum running speed of the wind power generating set is obtained, and using the current minimum running speed as first minimum turn Speed；First comparison step: obtaining the first blade passing frequency corresponding with first minimum speed and the first pylon single order is solid There is frequency, and whether determines the first ratio between first blade passing frequency and the first pylon first natural frequency More than or equal to the first preset threshold；Second comparison step: when determine first ratio be more than or equal to described first When preset threshold, determine whether the first start and stop unit frequency of the wind power generating set corresponding with first minimum speed is small In or equal to predetermined threshold；Third comparison step: when determining that it is described predetermined that the first start and stop unit frequency is less than or equal to When threshold value, determine the first output power of corresponding with first minimum speed wind power generating set whether be greater than or Equal to the wind power generating set from power consumption；First minimum speed updates step: when determining first output power When more than or equal to the wind power generating set from power consumption, first minimum speed is updated to described first most The difference of small revolving speed and minimum running speed optimization step-length；Frequency acquisition step: corresponding with first minimum speed the is obtained Two blade passing frequencies and the second pylon first natural frequency；First minimum speed determines step: when determining second blade When being less than first preset threshold by the second ratio between frequency and the second pylon first natural frequency, or work as Determine that the second start and stop unit frequency of the wind power generating set corresponding with first minimum speed is greater than the predetermined threshold When, or when the second output power for determining the wind power generating set corresponding with first minimum speed is less than the wind Power generator group from power consumption when, the sum of first minimum speed and minimum running speed optimization step-length are determined as institute State the minimum running speed of wind power generating set.
Optionally, the step of adjusting the minimum running speed of the wind power generating set further include: the second minimum speed is more New step: when determining that second ratio is more than or equal to first preset threshold, and work as and determine that described second opens When shutting down frequency less than or equal to the predetermined threshold, and when determining second output power is greater than or equal to described Wind power generating set from power consumption when, first minimum speed is updated to first minimum speed and minimum is run The difference of rotational speed optimization step-length, and return to the frequency acquisition step.Optionally, the minimum operation of the wind power generating set is adjusted The step of revolving speed further include: third minimum speed update step: when determine first ratio be less than first preset threshold When, perhaps when determining that the first start and stop unit frequency is greater than the predetermined threshold or when determining first output power When less than the wind power generating set from power consumption, by first minimum speed be updated to first minimum speed with The sum of minimum running speed optimization step-length, and return to first comparison step.
Optionally, the step of adjusting the maximum running speed of the wind power generating set includes: turbulence intensity comparison step: Determine whether the turbulence intensity value is less than or equal to preset turbulence intensity value；First maximum (top) speed obtaining step: when true When the fixed turbulence intensity value is less than or equal to preset turbulence intensity value, the current maximum of the wind power generating set is obtained Running speed, and using the current maximum running speed as the first maximum (top) speed；First maximum (top) speed updates step: will be described First maximum (top) speed is updated to the sum of first maximum (top) speed and maximum running speed optimization step-length；First determines step: really Whether the load of the fixed wind power generating set corresponding with first maximum (top) speed is more than or equal to the wind-power electricity generation The predetermined load of unit；Second determines step: when determining that the load is less than the predetermined load, determining that described first is maximum Whether revolving speed is less than or equal to the rated speed limiting value of the wind power generating set；Maximum (top) speed determines step: working as determination When first maximum (top) speed is less than or equal to the rated speed limiting value, first maximum (top) speed is determined as described The maximum running speed of wind power generating set.
Optionally, the step of adjusting the maximum running speed of the wind power generating set further include: the first step-length updates step It is rapid: when determining that the load is more than or equal to the predetermined load, or when determining first maximum (top) speed is greater than institute When stating rated speed limiting value, the maximum running speed optimization step-length is updated to two points of maximum running speed optimization step-length One of, obtain the current maximum running speed of the wind power generating set, will the current maximum running speed as described the One maximum (top) speed, and return to first maximum (top) speed and update step.
Optionally, the step of adjusting the maximum running speed of the wind power generating set further include: the second maximum (top) speed obtains It takes step: when determining that the turbulence intensity value is greater than preset turbulence intensity value, obtaining the current of the wind power generating set Maximum running speed, and using the current maximum running speed as the first maximum (top) speed；Second maximum (top) speed updates step: will First maximum (top) speed is updated to the difference of first maximum (top) speed and maximum running speed optimization step-length；Third determines step It is rapid: to determine whether the load of the wind power generating set corresponding with first maximum (top) speed is more than or equal to the wind-force The predetermined load of generating set；Third maximum (top) speed obtaining step: it when determining that the load is less than the predetermined load, obtains The current maximum running speed of the wind power generating set, using the current maximum running speed as described first maximum turn Speed, and return to first maximum (top) speed and update step.
Optionally, the step of adjusting the maximum running speed of the wind power generating set further include: the second step-length updates step It is rapid: when determining that the load is more than or equal to the predetermined load, the maximum running speed optimization step-length being updated to Two times of maximum running speed optimization step-length obtain the current maximum running speed of the wind power generating set, will be described current Maximum running speed returns to second maximum (top) speed and updates step as first maximum (top) speed.
Another aspect of the present invention also provides a kind of device of revolving speed for being adaptively adjusted wind power generating set, comprising: Wind-resources determining module determines the wind-resources in the fitting machine site of the wind power generating set；Parameter determination module, according to determination Wind-resources determine the start and stop unit frequency of the wind power generating set, the turbulence intensity value in the fitting machine site and the wind-force The load of generating set；Minimum speed adjusts module, blade passing frequency, wind-force hair based on the wind power generating set The output power of the pylon first natural frequency of motor group, the start and stop unit frequency and the wind power generating set adjusts the wind The minimum running speed of power generator group；Maximum (top) speed adjusts module, the rated speed limit based on the wind power generating set Value, the turbulence intensity value and the load adjust the maximum running speed of the wind power generating set.
Optionally, wind-resources determining module obtains the wind-resources data in the fitting machine site of the wind power generating set, and Using wind power plant flow field simulation method, the wind in the fitting machine site of the wind power generating set is determined in conjunction with the wind-resources data Fast probability density distribution and wind energy parameter, wherein the wind-resources data include air speed data, wind direction data, atmospheric density number According to.
Optionally, parameter determination module determines the start and stop unit frequency using the wind speed probability density distribution, uses institute It states wind energy parameter and determines the turbulence intensity value, use the maximum running speed of the wind energy parameter and the wind power generating set Determine the load.
Optionally, minimum speed adjustment module includes: minimum speed acquiring unit: obtaining working as the wind power generating set Preceding minimum running speed, and using the current minimum running speed as the first minimum speed；First comparing unit: obtaining and institute Corresponding first blade passing frequency of the first minimum speed and the first pylon first natural frequency are stated, and determines first blade Whether it is more than or equal to the first preset threshold by the first ratio between frequency and the first pylon first natural frequency； Second comparing unit: it when determining that first ratio is more than or equal to first preset threshold, determines and described first Whether the first start and stop unit frequency of the corresponding wind power generating set of minimum speed is less than or equal to predetermined threshold；Third ratio Compared with unit: when determining that the first start and stop unit frequency is less than or equal to the predetermined threshold, determining and described first minimum Whether the first output power of the corresponding wind power generating set of revolving speed is more than or equal to oneself of the wind power generating set Power consumption；First minimum speed updating unit: when determine first output power be greater than or be equal to the wind-power electricity generation Unit from power consumption when, first minimum speed is updated to first minimum speed and minimum running speed optimizes The difference of step-length；Frequency acquisition unit: the second blade passing frequency corresponding with first minimum speed and the second pylon are obtained First natural frequency；First minimum speed determination unit: when determining second blade passing frequency and second pylon one When the second ratio between rank intrinsic frequency is less than first preset threshold, or when determining and first minimum speed pair When second start and stop unit frequency of the wind power generating set answered is greater than the predetermined threshold, or works as and determine with described first most Second output power of the corresponding wind power generating set of small revolving speed be less than the wind power generating set from power consumption when, The sum of first minimum speed and minimum running speed optimization step-length are determined as the minimum of the wind power generating set to run Revolving speed.
Optionally, minimum speed adjusts module further include: the second minimum speed updating unit: when determining second ratio When more than or equal to first preset threshold, and when the determining second start and stop unit frequency is less than or equal to described pre- When determining threshold value, and when determining that second output power is greater than or equal to the wind power generating set from power consumption When, first minimum speed is updated to the difference of first minimum speed and minimum running speed optimization step-length, and will more First minimum speed after new is supplied to the frequency acquisition unit.
Optionally, minimum speed adjusts module further include: third minimum speed updating unit: when determining first ratio When less than first preset threshold, perhaps when determine the first start and stop unit frequency be greater than the predetermined threshold when or work as Determine first output power be less than the wind power generating set from power consumption when, will first minimum speed update Optimize the sum of step-length for first minimum speed and minimum running speed, and updated first minimum speed is provided To the first comparing unit.
Optionally, maximum (top) speed adjustment module includes: turbulence intensity comparing unit: determining whether the turbulence intensity value is small In or equal to preset turbulence intensity value；First maximum (top) speed acquiring unit: when determine the turbulence intensity value be less than or When equal to preset turbulence intensity value, obtain the current maximum running speed of the wind power generating set, and will it is described currently most Big running speed is as the first maximum (top) speed；First maximum (top) speed updating unit: first maximum (top) speed is updated to described The sum of first maximum (top) speed and maximum running speed optimization step-length；First determination unit: determining and first maximum (top) speed pair Whether the load for the wind power generating set answered is more than or equal to the predetermined load of the wind power generating set；Second determines Unit: when determining that the load is less than the predetermined load, determine whether first maximum (top) speed is less than or equal to institute State the rated speed limiting value of wind power generating set；Maximum (top) speed determination unit: when determine first maximum (top) speed be less than or When person is equal to the rated speed limiting value, first maximum (top) speed is determined as the maximum of the wind power generating set and is run Revolving speed.
Optionally, maximum (top) speed adjust module further include: the first step-length updating unit: when determine the load be greater than or It, will be described when equal to the predetermined load, or when determining that first maximum (top) speed is greater than the rated speed limiting value Maximum running speed optimization step-length is updated to the half of maximum running speed optimization step-length, obtains the wind power generating set Current maximum running speed, will the current maximum running speed as first maximum (top) speed, and most by described first Big revolving speed is supplied to the first maximum (top) speed updating unit.
Optionally, maximum (top) speed adjusts module further include: the second maximum (top) speed acquiring unit: when determining the turbulence intensity When value is greater than preset turbulence intensity value, the current maximum running speed of the wind power generating set is obtained, and will be described current Maximum running speed is as the first maximum (top) speed；Second maximum (top) speed updating unit: first maximum (top) speed is updated to institute State the difference of the first maximum (top) speed and maximum running speed optimization step-length；Third determination unit: determining and first maximum (top) speed Whether the load of the corresponding wind power generating set is more than or equal to the predetermined load of the wind power generating set；Third is most Big revolving speed acquiring unit: when determining that the load is less than the predetermined load, obtain the wind power generating set it is current most Big running speed mentions the current maximum running speed as first maximum (top) speed, and by first maximum (top) speed Supply the first maximum (top) speed updating unit.
Optionally, maximum (top) speed adjust module further include: the second step-length updating unit: when determine the load be greater than or When equal to the predetermined load, the maximum running speed optimization step-length is updated to the two of maximum running speed optimization step-length Times, the current maximum running speed of the wind power generating set is obtained, using the current maximum running speed as described first Maximum (top) speed, and first maximum (top) speed is supplied to the second maximum (top) speed updating unit.
Another aspect of the present invention also provides a kind of computer readable storage medium, and be stored with makes when being executed by a processor It obtains processor and executes the computer program for being adaptively adjusted the method for revolving speed of wind power generating set as described above.
Another aspect of the present invention also provides a kind of computing device, comprising: processor；Memory is located for storing to work as Reason device executes so that processor executes the computer for being adaptively adjusted the method for revolving speed of wind power generating set as described above Program.
The method and apparatus of the revolving speed for being adaptively adjusted wind power generating set of the invention, according to wind power generating set The wind-resources in fitting machine site, and consider wind power generating set interval of resonance, from three kinds of power consumption and start and stop unit frequency because It is usually adaptively adjusted minimum running speed, is sent out in conjunction with the turbulence intensity value and wind-force in the fitting machine site of wind power generating set The load of motor group is adaptively adjusted maximum running speed, to optimize the power generation performance of wind power generating set, guarantees wind The safety of power generator group operation, effectively improves the economy of wind power generating set.
Detailed description of the invention
By the detailed description carried out below in conjunction with the accompanying drawings, above and other objects of the present invention, features and advantages will It becomes more fully apparent, in which:
Fig. 1 shows the process of the method for the revolving speed for being adaptively adjusted wind power generating set of embodiment according to the present invention Figure；
Fig. 2 shows the examples of the Campbell chart of the wind power generating set of embodiment according to the present invention；
Fig. 3 shows the process of the step of minimum running speed of the adjustment wind power generating set of embodiment according to the present invention Figure；
Fig. 4 shows the process of the step of maximum running speed of the adjustment wind power generating set of embodiment according to the present invention Figure；
Fig. 5 shows the frame of the device of the revolving speed for being adaptively adjusted wind power generating set of embodiment according to the present invention Figure；
Fig. 6 shows the detailed diagram of the minimum speed adjustment module of embodiment according to the present invention；
Fig. 7 shows the detailed diagram of the maximum (top) speed adjustment module of embodiment according to the present invention.
Specific embodiment
Now, different example embodiments is more fully described with reference to the accompanying drawings, wherein some exemplary embodiments are attached It is shown in figure.
Turn for being adaptively adjusted wind power generating set of embodiment according to the present invention is described referring to Fig. 1 to Fig. 7 The method and apparatus of speed.
Fig. 1 shows the process of the method for the revolving speed for being adaptively adjusted wind power generating set of embodiment according to the present invention Figure, Fig. 2 shows the examples of the Campbell of the wind power generating set of embodiment according to the present invention (Campbell) figure.
In step S10, the wind-resources in the fitting machine site of wind power generating set are determined.
In one embodiment of step S10, the wind-resources data in the fitting machine site of wind power generating set are obtained；It uses Wind power plant flow field simulation method, in conjunction with acquisition wind-resources data determine wind power generating set fitting machine site wind speed probability Density Distribution and wind energy parameter.
Here, wind-resources data include air speed data, wind direction data, atmospheric density data etc..
The practical wind-resources data in the different fitting machine sites of wind power generating set can be different, wind power generating set it is same Fitting machine site is also different in the practical wind-resources data of different moments.As an example, can be measured by wind-resources measuring system Obtain the wind-resources data in the fitting machine site of wind power generating set.
It should be appreciated that various suitable wind power plant flow field simulation methods can be used to determine the fitting machine of wind power generating set The wind speed probability density distribution and wind energy parameter in site, this is not limited by the present invention.
In step S20, the start and stop unit frequency of wind power generating set, the fitting machine site are determined according to determining wind-resources The load of turbulence intensity value and wind power generating set.
Preferably, in step S20, the start and stop unit frequency of wind power generating set is determined using wind speed probability density distribution；Make The turbulence intensity value in the fitting machine site is determined with wind energy parameter；Maximum operation using wind energy parameter and wind power generating set turns Speed determines the load of wind power generating set.
Here, the turbulence intensity value in the fitting machine site is the typical value of the turbulence intensity in the fitting machine site, for referring to Show the size of the fitting machine site turbulence intensity.
Further, can be different using the start and stop unit frequency that different wind speed probability density distributions determines, using different The turbulence intensity value in the fitting machine site that wind energy parameter determines can be different.
In step S30, the intrinsic frequency of pylon single order of blade passing frequency, wind power generating set based on wind power generating set The minimum running speed of the output power adjustment wind power generating set of rate, the start and stop unit frequency of determination and wind power generating set.
During the minimum running speed of the adjustment wind power generating set of the embodiment of the present invention, wind-force is comprehensively considered The interval of resonance of generating set, the output power of wind power generating set and three kinds of start and stop unit frequency are because being usually adjusted.
Specifically, wind power generating set avoids interval of resonance and typically refers to pylon first natural frequency corresponding with revolving speed keeping away Open blade passing frequency corresponding with the revolving speed and wheel rotation frequency (that is, impeller 1P frequency).Referring to Fig. 2, pylon single order frequency Rate f2The both ends of this line respectively correspond the minimum running speed and maximum running speed of wind power generating set, as shown in Figure 2, wind The minimum running speed of power generator group is smaller, pylon fundamental frequency f2This line passes through closer to the blade of wind power generating set Frequency f1, this can bring the risk of resonance to wind power generating set.Therefore, the embodiment of the present invention avoids wind power generating set Interval of resonance is as one of the condition for adjusting minimum running speed.
The blade passing frequency that the embodiment of the present invention passes through consideration wind power generating set corresponding with minimum running speed The pylon first natural frequency of (that is, impeller 3P frequency) and wind power generating set corresponding with minimum running speed, Lai Shixian are kept away Open the interval of resonance of wind power generating set.
The minimum running speed of wind power generating set affects the start and stop unit frequency of wind power generating set, and usual wind speed is lower When turbulent flow is larger, wind speed variation frequently, if the minimum running speed of wind power generating set is lower, be easy to cause wind-driven generator Group frequent switching between start and stop, adversely affects wind power generating set.Therefore, the embodiment of the present invention sends out wind-force The start and stop unit frequency of motor group is as one of the condition for adjusting minimum running speed.
Wind field consumable electrical phenomena is primarily referred to as wind power generating set itself power consumption that wind field occurs during generating electricity by way of merging two or more grid systems Phenomenon, in small wind operating condition, net side active power becomes negative value from positive value.The main reason for causing wind field consumable electrical phenomena is wind The output power (that is, generated output power of wind power generating set) of power generator group wind power generating set in the process of running Be not enough to support the large power-consuming equipment (such as electrical component, cooling system) of wind power generating set from power consumption, need electricity Net is additionally provided electric energy, increases so as to cause wind power plant from power consumption, brings additional generated energy to lose to wind power plant operation.Cause This, the embodiment of the present invention is using the output power of wind power generating set as one of the condition for adjusting minimum running speed.
Return to Fig. 1, in step S40, based on the rated speed limiting value of wind power generating set, the turbulence intensity value of determination and The maximum running speed of determining load adjustment wind power generating set.
During the maximum running speed of present invention adjustment wind power generating set, wind power generating set fortune is comprehensively considered Two kinds of generator maximum capacity of capable safety and wind power generating set are because being usually adjusted.Here, wind power generating set Rated speed limiting value can be preset value.
Carry out the minimum running speed of the adjustment wind power generating set of detailed description of the present invention embodiment below with reference to Fig. 3 Step.
Fig. 3 shows the process of the step of minimum running speed of the adjustment wind power generating set of embodiment according to the present invention Figure.
In step S301, that is, minimum speed obtaining step: the current minimum running speed of wind power generating set is obtained, and Using the current minimum running speed as the first minimum speed.
Here, the current minimum running speed of wind power generating set can turn for the minimum operation of preset wind power generating set Speed, the minimum running speed of the optimization obtained after can also adaptively being adjusted for last minimum running speed.
In step S302, obtains the first blade passing frequency corresponding with the first minimum speed and the first pylon single order is intrinsic Frequency.
In step S303, determine that the first ratio between the first blade passing frequency and the first pylon first natural frequency is It is no to be more than or equal to the first preset threshold.
It should be appreciated that the first comparison step (step S302 and step S303) is for making wind power generating set avoid resonance region Between.Preferably, the first preset threshold is 1.15.
Specifically, wind power generating set, which avoids interval of resonance needs, makes blade passing frequency corresponding with minimum running speed f10With pylon fundamental frequency f corresponding with minimum running speed12Meet following formula:
f10/f12>=1.15,
That is, wind power generating set can guarantee more than certain safety when determining that first ratio is more than or equal to 1.15 Amount, to effectively avoid interval of resonance.
In step S304, that is, the second comparison step: when determining that the first ratio is more than or equal to the first preset threshold, Determine whether the first start and stop unit frequency of wind power generating set corresponding with the first minimum speed is less than or equal to predetermined threshold.
Here, predetermined threshold can be preset as needed, and this is not limited by the present invention.
In step S305, that is, third comparison step: when determine the first start and stop unit frequency be less than or equal to predetermined threshold When, determine whether the first output power of wind power generating set corresponding with the first minimum speed is more than or equal to wind-power electricity generation Unit from power consumption.
In step S306, that is, the first minimum speed update step: when determine the first output power be greater than or be equal to wind-force Generating set from power consumption when, the first minimum speed is updated to the first minimum speed and minimum running speed optimizes step-length Difference.
Here, minimum running speed optimization step-length can be configured in advance as needed, and this is not limited by the present invention.
As an example it is supposed that the first minimum speed in step S301 is denoted as R1, minimum running speed optimization step-length note For △min, the first minimum speed that step S306 updates is denoted as R2, then R2It is obtained by following formula:
R2=R1-Δmin。
In step S307 (that is, frequency acquisition step), the second blade passing frequency corresponding with the first minimum speed is obtained With the second pylon first natural frequency.
Here, the second blade passing frequency is, and blade corresponding with the first minimum speed that step 306 update obtains passes through Frequency, the second pylon first natural frequency is, and pylon single order corresponding with the first minimum speed that step 306 update obtains is intrinsic Frequency.
In step S308, that is, the first minimum speed determines step: when determining the second blade passing frequency and the second pylon one When the second ratio between rank intrinsic frequency is less than the first preset threshold, or when determining wind corresponding with first minimum speed When second start and stop unit frequency of power generator group is greater than predetermined threshold, or when determining wind-force corresponding with first minimum speed Second output power of generating set be less than wind power generating set from power consumption when, by the first minimum speed and minimum run The sum of rotational speed optimization step-length is determined as the minimum running speed of wind power generating set.
As an example it is supposed that the minimum running speed of the step S308 wind power generating set determined is denoted as Rmin, then Rmin It is obtained by following formula:
Rmin=R2+Δmin。
In addition, when determining that second ratio is more than or equal to the first preset threshold, and when the determining described start and stop When unit frequency is less than or equal to predetermined threshold, and when determining second output power is greater than or is equal to wind power generating set From power consumption when, in step S309 (that is, the second minimum speed updates step), by the first minimum speed be updated to this first The difference of minimum speed and minimum running speed optimization step-length, and return step 307.
Here, it in returning to the step S307 executed, obtains corresponding with the first minimum speed that step S309 updates Blade passing frequency and pylon first natural frequency.
In addition, when step S303 determines the first ratio less than the first preset threshold, or when step S304 determines first When start and stop unit frequency is greater than predetermined threshold, or when step S305 determines that the first output power is less than the consumable of wind power generating set When electrical power, in step S310 (that is, third minimum speed updates step), the first minimum speed is updated to this first minimum turn The sum of speed and minimum running speed optimization step-length, and return to step S302.
Here, the first minimum speed that step S310 updates is the first minimum speed R in step S3011With minimum Running speed optimizes the sum of step-length.
As an example it is supposed that the first minimum speed that step S310 is updated is denoted as R3, then R3It is obtained by following formula:
R3=R1+Δmin。
In the case, return step S302 is obtained and is updated the first obtained minimum speed R3Corresponding first blade is logical Overfrequency and the first pylon first natural frequency.
Carry out the maximum running speed of the adjustment wind power generating set of detailed description of the present invention embodiment below with reference to Fig. 4 Step.
Fig. 4 shows the process of the step of maximum running speed of the adjustment wind power generating set of embodiment according to the present invention Figure.
In step S401, that is, turbulence intensity comparison step: it is preset to determine whether the turbulence intensity value is less than or equal to Turbulence intensity value.
Preferably, determine whether the turbulence intensity value under predetermined wind speed is less than or equal to the turbulent flow under the predetermined wind speed Intensity preset value.
When step S401 determines that turbulence intensity value is less than or equal to preset turbulence intensity value, in step S402, that is, First maximum (top) speed obtaining step: the current maximum running speed of wind power generating set is obtained, and the current maximum operation is turned Speed is used as the first maximum (top) speed.
Here, the current maximum running speed of wind power generating set can turn for the maximum operation of preset wind power generating set Speed, the maximum running speed of the optimization obtained after can also adaptively being adjusted for last maximum running speed.
In step S403, that is, the first maximum (top) speed updates step: the first maximum (top) speed is updated to first maximum (top) speed Optimize the sum of step-length with maximum running speed.
Here, maximum running speed optimization step-length can be configured in advance as needed, and this is not limited by the present invention.
As an example it is supposed that the first maximum (top) speed that step S402 is acquired is denoted as R10, step S403 updates First maximum (top) speed is denoted as R20, maximum running speed optimization step-length is denoted as △max, then R20It is obtained by following formula:
R20=R10+Δmax。
In step S404, that is, first determines step: determining the load of wind power generating set corresponding with the first maximum (top) speed Whether the predetermined load of wind power generating set is more than or equal to.
Specifically, it is determined that the first maximum (top) speed R updated with step S40320The load of corresponding wind power generating set Whether the predetermined load of wind power generating set is more than or equal to.
When step S404 determines that the load is less than predetermined load, in step S405, that is, second determines step: determining the Whether one maximum (top) speed is less than or equal to the rated speed limiting value of wind power generating set.
When step S405 determines that the first maximum (top) speed is less than or equal to the rated speed limiting value, in step S406, That is, maximum (top) speed determines step: the first maximum (top) speed is determined as to the maximum running speed of wind power generating set.
Here, by determining that the first maximum (top) speed is less than or equal to the rated speed limiting value, to guarantee wind-power electricity generation The safety of unit operation.
In addition, when step S404 determines that the load is more than or equal to predetermined load, or when step S405 determines the When one maximum (top) speed is greater than the rated speed limiting value, in step S407, that is, the first step-length updates step: maximum operation is turned Speed optimization step-length is updated to the half of maximum running speed optimization step-length, obtains the current maximum operation of wind power generating set Revolving speed, using the current maximum running speed as the first maximum (top) speed, and return step S403.
As an example it is supposed that returning to step the first maximum (top) speed that S403 updates is denoted as R30, then R30 is by following formula It obtains:
。
In addition, when step S401 determines that the turbulence intensity value is greater than preset turbulence intensity value, in step 408, that is, the Two maximum (top) speed obtaining steps: obtaining the current maximum running speed of wind power generating set, and by the current maximum running speed As the first maximum (top) speed.
In step 409, that is, the second maximum (top) speed updates step: the first maximum (top) speed is updated to first maximum (top) speed And the difference of maximum running speed optimization step-length.
As an example it is supposed that the first maximum (top) speed that step S408 is acquired is denoted as R10, step S409 updates First maximum (top) speed is denoted as R30, maximum running speed optimization step-length is denoted as △max, then R30It is obtained by following formula:
R30=R10-Δmax。
In step 410, that is, third determines step: determining the load of wind power generating set corresponding with the first maximum (top) speed Whether the predetermined load of wind power generating set is more than or equal to.
Specifically, it is determined that the first maximum (top) speed R updated with step S41030The load of corresponding wind power generating set Whether the predetermined load of wind power generating set is more than or equal to.
When step 410 determines that the load is less than predetermined load, in step 411, that is, third maximum (top) speed obtaining step: The current maximum running speed for obtaining wind power generating set using the current maximum running speed as the first maximum (top) speed, and returns Return step S403.
Here, as an example it is supposed that returning to step the first maximum (top) speed that S403 updates is denoted as R40, then R40 It is obtained by following formula:
R40=R30+Δmax。
In addition, when step 410 determines that the load is more than or equal to predetermined load, in step S412, that is, the second step-length It updates step: maximum running speed optimization step-length being updated to two times of maximum running speed optimization step-length, obtains wind-power electricity generation The current maximum running speed of unit, using the current maximum running speed as the first maximum (top) speed, and return step 409.
As an example it is supposed that it is R that return step 409, which updates the first obtained maximum (top) speed,50, then R50 is obtained by following formula:
R50=R10-2Δmax。
It should be appreciated that the power that the maximum running speed of adjustment wind power generating set can directly affect wind power generating set is bent Line, to influence the generated energy of wind power generating set.The maximum of the adaptive adjustment wind power generating set of the embodiment of the present invention Running speed can optimize the power generation performance of wind power generating set, effectively improve the economy of wind power generating set.
Carry out the revolving speed for being adaptively adjusted wind power generating set of detailed description of the present invention embodiment below with reference to Fig. 5 Device.
Fig. 5 shows the frame of the device of the revolving speed for being adaptively adjusted wind power generating set of embodiment according to the present invention Figure.
Referring to Fig. 5, the device of the revolving speed for being adaptively adjusted wind power generating set of embodiment according to the present invention includes: Wind-resources determining module 100, parameter determination module 200, minimum speed adjustment module 300 and maximum (top) speed adjust module 400.
Wind-resources determining module 100 determines the wind-resources in the fitting machine site of wind power generating set.
In one embodiment of wind-resources determining module 100, wind-resources determining module 100 obtains wind power generating set The wind-resources data in fitting machine site reuse wind power plant flow field simulation method, determine wind-force in conjunction with the wind-resources data of acquisition The wind speed probability density distribution and wind energy parameter in the fitting machine site of generating set.
Here, wind-resources data include air speed data, wind direction data, atmospheric density data etc..
Parameter determination module 200 determines the start and stop unit frequency of wind power generating set, the fitting machine according to determining wind-resources The turbulence intensity value in site and the load of wind power generating set.
Preferably, parameter determination module 200 determines the start and stop frequency of wind power generating set using wind speed probability density distribution Rate is determined the turbulence intensity value in the fitting machine site using wind energy parameter, uses the maximum of wind energy parameter and wind power generating set Running speed determines the load of wind power generating set.
Minimum speed adjusts the pylon of blade passing frequency of the module 300 based on wind power generating set, wind power generating set The minimum operation of the output power adjustment wind power generating set of first natural frequency, the start and stop unit frequency and wind power generating set turns Speed.
Maximum (top) speed adjusts rated speed limiting value of the module 400 based on wind power generating set, the turbulence intensity value and should The maximum running speed of load adjustment wind power generating set.
Carry out the minimum speed adjustment module adjustment wind power generating set of detailed description of the present invention embodiment below with reference to Fig. 6 Minimum running speed process.
Fig. 6 shows the detailed diagram of the minimum speed adjustment module of embodiment according to the present invention.
Referring to Fig. 6, it includes minimum speed acquiring unit 301, the first comparing unit 302, that minimum speed, which adjusts module 300, Two comparing units 303, third comparing unit 304, the first minimum speed updating unit 305, frequency acquisition unit 306 and first are most Small revolving speed determination unit 307.
Minimum speed acquiring unit 301 obtains the current minimum running speed of wind power generating set, and by the current minimum Running speed is as the first minimum speed.
First comparing unit 302 obtains the first blade passing frequency corresponding with first minimum speed and the first pylon one Rank intrinsic frequency, and determine whether the first ratio between the first blade passing frequency and the first pylon first natural frequency is greater than Or it is equal to the first preset threshold.
When determining that first ratio is more than or equal to the first preset threshold, the second comparing unit 303 determine with this Whether the first start and stop unit frequency of the corresponding wind power generating set of one minimum speed is less than or equal to predetermined threshold.
When determining that the first start and stop unit frequency is less than or equal to predetermined threshold, third comparing unit 304 is determined and the Whether the first output power of the corresponding wind power generating set of one minimum speed is more than or equal to the consumable of wind power generating set Electrical power.
When determine first output power be greater than or equal to wind power generating set from power consumption when, first minimum turns First minimum speed is updated to the difference of first minimum speed and minimum running speed optimization step-length by fast updating unit 305.
Frequency acquisition unit 306 obtains the second blade passing frequency corresponding with first minimum speed and the second pylon one Rank intrinsic frequency.
When determining the second ratio between second blade passing frequency and the second pylon first natural frequency less than When one preset threshold, or when the second start and stop unit frequency for determining wind power generating set corresponding with first minimum speed is greater than When predetermined threshold, or when the second output power for determining wind power generating set corresponding with first minimum speed is less than wind-force Generating set from power consumption when, the first minimum speed determination unit 307 is excellent by the first minimum speed and minimum running speed Change the minimum running speed that the sum of step-length is determined as wind power generating set.
In addition, minimum speed adjusts module 300 further include: the second minimum speed updating unit (not shown).
When determining that second ratio is more than or equal to the first preset threshold, and when the determining second start and stop unit frequency When less than or equal to predetermined threshold, and when determine second output power be greater than or equal to wind power generating set consumable When electrical power, the first minimum speed is updated to first minimum speed and minimum running speed by the second minimum speed updating unit Optimize the difference of step-length, and updated first minimum speed is supplied to frequency acquisition unit 306.
In addition, minimum speed adjusts module 300 further include: third minimum speed updating unit (not shown).
Make a reservation for when determining first ratio less than the first preset threshold, or when determining that the first start and stop unit frequency is greater than When threshold value, or when determining first output power less than wind power generating set from power consumption, third minimum speed is more First minimum speed is updated to the sum of first minimum speed and minimum running speed optimization step-length by new unit, in third minimum After revolving speed updating unit executes, and updated first minimum speed is supplied to the first comparing unit 301.
Carry out the maximum (top) speed adjustment module adjustment wind power generating set of detailed description of the present invention embodiment below with reference to Fig. 7 Maximum running speed process.
Fig. 7 shows the detailed diagram of the maximum (top) speed adjustment module of embodiment according to the present invention.
Referring to Fig. 7, it includes turbulence intensity comparing unit 401, the first maximum (top) speed acquisition list that maximum (top) speed, which adjusts module 400, First 402, first maximum (top) speed updating unit 403, the first determination unit 404, the second determination unit 405 and maximum (top) speed determine single Member 406.
Turbulence intensity comparing unit 401 determines whether turbulence intensity value is less than or equal to preset turbulence intensity value.
When determining that the turbulence intensity value is less than or equal to preset turbulence intensity value, the first maximum (top) speed acquiring unit 402 obtain the current maximum running speed of wind power generating set, and using the current maximum running speed as the first maximum (top) speed.
First maximum (top) speed is updated to first maximum (top) speed to first maximum (top) speed updating unit 403 and maximum operation turns The sum of speed optimization step-length.
First determination unit 404 determine the load of corresponding with the first maximum (top) speed wind power generating set whether be greater than or Equal to the predetermined load of wind power generating set.
When determining that the load is less than predetermined load, the second determination unit 405 determines whether first maximum (top) speed is less than Or the rated speed limiting value equal to wind power generating set.
When determining that first maximum (top) speed is less than or equal to the rated speed limiting value, maximum (top) speed determination unit 406 are determined as first maximum (top) speed maximum running speed of wind power generating set.
In addition, maximum (top) speed adjustment module 400 further includes the first step-length updating unit (not shown).
When determining that the load is more than or equal to predetermined load, or when determining first maximum (top) speed is greater than rated speed When limiting value, maximum running speed optimization step-length is updated to the two of maximum running speed optimization step-length by the first step-length updating unit / mono-, the current maximum running speed of wind power generating set is obtained, and the first maximum (top) speed is supplied to the first maximum (top) speed Updating unit 403.
In addition, maximum (top) speed adjustment module 400 further includes the second maximum (top) speed acquiring unit (not shown), second maximum turn Fast updating unit (not shown), third determination unit (not shown), third maximum (top) speed acquiring unit (not shown).
When determining that the turbulence intensity value is greater than preset turbulence intensity value, the second maximum (top) speed acquiring unit obtains wind-force The current maximum running speed of generating set, and using the current maximum running speed as the first maximum (top) speed.
First maximum (top) speed is updated to first maximum (top) speed and maximum running speed by the second maximum (top) speed updating unit Optimize the difference of step-length.
Third determination unit determine with first maximum (top) speed (that is, the second maximum (top) speed updating unit update the One maximum (top) speed) whether the load of corresponding wind power generating set be more than or equal to the predetermined load of wind power generating set；
When determining that the load is less than predetermined load, third maximum (top) speed acquiring unit obtains the current of wind power generating set The current maximum running speed is supplied to first as the first maximum (top) speed, and by the first maximum (top) speed by maximum running speed Maximum (top) speed updating unit 403.
In addition, maximum (top) speed adjustment module 400 further includes the second step-length updating unit (not shown).
When determining that the load is more than or equal to predetermined load, the second step-length updating unit optimizes maximum running speed Step-length is updated to two times of maximum running speed optimization step-length, obtains the current maximum running speed of wind power generating set, will First maximum (top) speed is supplied to the second maximum (top) speed and updates list by the current maximum running speed as the first maximum (top) speed Member.
In addition, the method and apparatus of the revolving speed for being adaptively adjusted wind power generating set of the embodiment of the present invention, according to The wind-resources in the fitting machine site of wind power generating set, and consider the interval of resonance of wind power generating set, from power consumption and open Three kinds of factors of frequency are shut down to be adaptively adjusted minimum running speed, in conjunction with the turbulent flow in the fitting machine site of wind power generating set The load of intensity value and wind power generating set is adaptively adjusted maximum running speed, to optimize the hair of wind power generating set Electrical property guarantees the safety of wind power generating set operation, effectively improves the economy of wind power generating set.
Embodiment according to the present invention also provides a kind of computer readable storage medium.The computer readable storage medium is deposited It contains and processor is made to execute the revolving speed for being adaptively adjusted wind power generating set as described above when being executed by a processor The computer program of method.
Embodiment according to the present invention also provides a kind of computing device.The computing device includes processor and memory.It deposits Reservoir is for storing program instruction.Described program instruction is executed by processor so that processor executes as described above adaptively Adjust the computer program of the method for the revolving speed of wind power generating set.
Moreover, it should be understood that the revolving speed according to an exemplary embodiment of the present invention for being adaptively adjusted wind power generating set Device in each unit can be implemented hardware component and/or component software.Those skilled in the art are according to each of restriction Processing performed by unit, can such as use site programmable gate array (FPGA) or specific integrated circuit (ASIC) Lai Shixian Each unit.
Although being particularly shown and describing the present invention, those skilled in the art referring to its exemplary embodiment It should be understood that in the case where not departing from the spirit and scope of the present invention defined by claim form can be carried out to it With the various changes in details.

Claims (22)

1. a kind of method for the revolving speed for being adaptively adjusted wind power generating set characterized by comprising
Determine the wind-resources in the fitting machine site of the wind power generating set；
The start and stop unit frequency of the wind power generating set, the turbulence intensity in the fitting machine site are determined according to determining wind-resources The load of value and the wind power generating set；
The pylon first natural frequency of blade passing frequency, the wind power generating set based on the wind power generating set, institute The output power for stating start and stop unit frequency and the wind power generating set adjusts the minimum running speed of the wind power generating set；
Rated speed limiting value, the turbulence intensity value and the load based on the wind power generating set adjust the wind-force The maximum running speed of generating set.
2. the method as described in claim 1, which is characterized in that determine the wind money in the fitting machine site of the wind power generating set The step of source includes:
Obtain the wind-resources data in the fitting machine site of the wind power generating set；
Using wind power plant flow field simulation method, the fitting machine site of the wind power generating set is determined in conjunction with the wind-resources data Wind speed probability density distribution and wind energy parameter,
Wherein, the wind-resources data include air speed data, wind direction data, atmospheric density data.
3. method according to claim 2, which is characterized in that determine the wind power generating set according to determining wind-resources The step of load of start and stop unit frequency, the turbulence intensity value in the fitting machine site and the wind power generating set includes:
The start and stop unit frequency is determined using the wind speed probability density distribution；
The turbulence intensity value is determined using the wind energy parameter；
The load is determined using the maximum running speed of the wind energy parameter and the wind power generating set.
4. the method as described in claim 1, which is characterized in that adjust the step of the minimum running speed of the wind power generating set Suddenly include:
Minimum speed obtaining step: obtaining the current minimum running speed of the wind power generating set, and by the current minimum Running speed is as the first minimum speed；
First comparison step: obtaining the first blade passing frequency corresponding with first minimum speed and the first pylon single order is solid There is frequency, and whether determines the first ratio between first blade passing frequency and the first pylon first natural frequency More than or equal to the first preset threshold；
Second comparison step: when determining that first ratio is more than or equal to first preset threshold, it is determining with it is described Whether the first start and stop unit frequency of the corresponding wind power generating set of the first minimum speed is less than or equal to predetermined threshold；
Third comparison step: when determining that the first start and stop unit frequency is less than or equal to the predetermined threshold, determining and institute Whether the first output power for stating the corresponding wind power generating set of the first minimum speed is more than or equal to the wind-force hair Motor group from power consumption；
First minimum speed updates step: when determining that first output power is greater than or equal to the wind power generating set When from power consumption, by first minimum speed be updated to first minimum speed and minimum running speed optimization step-length it Difference；
Frequency acquisition step: obtaining the second blade passing frequency corresponding with first minimum speed and the second pylon single order is solid There is frequency；
First minimum speed determines step: when determining second blade passing frequency and the second pylon first natural frequency Between the second ratio when being less than first preset threshold, or when determining corresponding with first minimum speed wind When second start and stop unit frequency of power generator group is greater than the predetermined threshold, or when determination is corresponding with first minimum speed The wind power generating set the second output power be less than the wind power generating set from power consumption when, by described first The sum of minimum speed and minimum running speed optimization step-length are determined as the minimum running speed of the wind power generating set.
5. method as claimed in claim 4, which is characterized in that adjust the step of the minimum running speed of the wind power generating set Suddenly further include:
Second minimum speed updates step: when determining that second ratio is more than or equal to first preset threshold, and And when determining that the second start and stop unit frequency is less than or equal to the predetermined threshold, and when determining second output work Rate be more than or equal to the wind power generating set from power consumption when, first minimum speed is updated to described first The difference of minimum speed and minimum running speed optimization step-length, and return to the frequency acquisition step.
6. method as claimed in claim 4, which is characterized in that adjust the step of the minimum running speed of the wind power generating set Suddenly further include:
Third minimum speed updates step: when determining that first ratio is less than first preset threshold, or when determination When the first start and stop unit frequency is greater than the predetermined threshold, or when determining first output power is sent out less than the wind-force Motor group from power consumption when, first minimum speed is updated to first minimum speed and minimum running speed is excellent Change the sum of step-length, and returns to first comparison step.
7. the method as described in claim 1, which is characterized in that adjust the step of the maximum running speed of the wind power generating set Suddenly include:
Turbulence intensity comparison step: determine whether the turbulence intensity value is less than or equal to preset turbulence intensity value；
First maximum (top) speed obtaining step: when determining that the turbulence intensity value is less than or equal to preset turbulence intensity value, The current maximum running speed of the wind power generating set is obtained, and using the current maximum running speed as first maximum turn Speed；
First maximum (top) speed updates step: first maximum (top) speed being updated to first maximum (top) speed and maximum operation turns The sum of speed optimization step-length；
First determines step: determine the load of corresponding with first maximum (top) speed wind power generating set whether be greater than or Person is equal to the predetermined load of the wind power generating set；
Second determines step: when determining that the load is less than the predetermined load, determining whether first maximum (top) speed is small In or equal to the wind power generating set rated speed limiting value；
Maximum (top) speed determines step: when determining that first maximum (top) speed is less than or equal to the rated speed limiting value, First maximum (top) speed is determined as to the maximum running speed of the wind power generating set.
8. the method for claim 7, which is characterized in that adjust the step of the maximum running speed of the wind power generating set Suddenly further include:
First step-length updates step: when determining that the load is more than or equal to the predetermined load, or working as described in determination When first maximum (top) speed is greater than the rated speed limiting value, the maximum running speed optimization step-length is updated to maximum operation The half of rotational speed optimization step-length obtains the current maximum running speed of the wind power generating set, by the current maximum Running speed returns to first maximum (top) speed and updates step as first maximum (top) speed.
9. the method for claim 7, which is characterized in that adjust the step of the maximum running speed of the wind power generating set Suddenly further include:
Second maximum (top) speed obtaining step: when determining that the turbulence intensity value is greater than preset turbulence intensity value, described in acquisition The current maximum running speed of wind power generating set, and using the current maximum running speed as the first maximum (top) speed；
Second maximum (top) speed updates step: first maximum (top) speed being updated to first maximum (top) speed and maximum operation turns The difference of speed optimization step-length；
Third determines step: determine the load of the wind power generating set corresponding with first maximum (top) speed whether be greater than or Person is equal to the predetermined load of the wind power generating set；
Third maximum (top) speed obtaining step: when determining that the load is less than the predetermined load, the wind-driven generator is obtained The current maximum running speed of group, will the current maximum running speed as first maximum (top) speed, and return to described the One maximum (top) speed updates step.
10. method as claimed in claim 9, which is characterized in that adjust the maximum running speed of the wind power generating set Step further include:
Second step-length updates step: when determining that the load is more than or equal to the predetermined load, by the maximum operation Rotational speed optimization step-length is updated to two times of maximum running speed optimization step-length, obtains the current maximum fortune of the wind power generating set Row revolving speed using the current maximum running speed as first maximum (top) speed, and returns to second maximum (top) speed and updates Step.
11. a kind of device for the revolving speed for being adaptively adjusted wind power generating set characterized by comprising
Wind-resources determining module determines the wind-resources in the fitting machine site of the wind power generating set；
Parameter determination module determines start and stop unit frequency, the fitting machine of the wind power generating set according to determining wind-resources The turbulence intensity value in site and the load of the wind power generating set；
Minimum speed adjusts module, the tower of blade passing frequency, the wind power generating set based on the wind power generating set The output power of frame first natural frequency, the start and stop unit frequency and the wind power generating set adjusts the wind power generating set Minimum running speed；
Maximum (top) speed adjusts module, rated speed limiting value, the turbulence intensity value and institute based on the wind power generating set State the maximum running speed that load adjusts the wind power generating set.
12. device as claimed in claim 11, which is characterized in that wind-resources determining module obtains the wind power generating set The wind-resources data in fitting machine site, and wind power plant flow field simulation method is used, the wind is determined in conjunction with the wind-resources data The wind speed probability density distribution and wind energy parameter in the fitting machine site of power generator group,
Wherein, the wind-resources data include air speed data, wind direction data, atmospheric density data.
13. device as claimed in claim 12, which is characterized in that parameter determination module uses the wind speed probability density distribution It determines the start and stop unit frequency, determines the turbulence intensity value using the wind energy parameter, use the wind energy parameter and described The maximum running speed of wind power generating set determines the load.
14. device as claimed in claim 11, which is characterized in that minimum speed adjusts module and includes:
Minimum speed acquiring unit: obtaining the current minimum running speed of the wind power generating set, and by the current minimum Running speed is as the first minimum speed；
First comparing unit: obtaining the first blade passing frequency corresponding with first minimum speed and the first pylon single order is solid There is frequency, and whether determines the first ratio between first blade passing frequency and the first pylon first natural frequency More than or equal to the first preset threshold；
Second comparing unit: when determining that first ratio is more than or equal to first preset threshold, it is determining with it is described Whether the first start and stop unit frequency of the corresponding wind power generating set of the first minimum speed is less than or equal to predetermined threshold；
Third comparing unit: when determining that the first start and stop unit frequency is less than or equal to the predetermined threshold, determining and institute Whether the first output power for stating the corresponding wind power generating set of the first minimum speed is more than or equal to the wind-force hair Motor group from power consumption；
First minimum speed updating unit: when determining that first output power is greater than or equal to the wind power generating set When from power consumption, by first minimum speed be updated to first minimum speed and minimum running speed optimization step-length it Difference；
Frequency acquisition unit: obtaining the second blade passing frequency corresponding with first minimum speed and the second pylon single order is solid There is frequency；
First minimum speed determination unit: when determining second blade passing frequency and the second pylon first natural frequency Between the second ratio when being less than first preset threshold, or when determining corresponding with first minimum speed wind When second start and stop unit frequency of power generator group is greater than the predetermined threshold, or when determination is corresponding with first minimum speed The wind power generating set the second output power be less than the wind power generating set from power consumption when, by described first The sum of minimum speed and minimum running speed optimization step-length are determined as the minimum running speed of the wind power generating set.
15. device as claimed in claim 14, which is characterized in that minimum speed adjusts module further include:
Second minimum speed updating unit: when determining that second ratio is more than or equal to first preset threshold, and And when determining that the second start and stop unit frequency is less than or equal to the predetermined threshold, and when determining second output work Rate be more than or equal to the wind power generating set from power consumption when, first minimum speed is updated to described first The difference of minimum speed and minimum running speed optimization step-length, and updated first minimum speed is supplied to the frequency Acquiring unit.
16. device as claimed in claim 14, which is characterized in that minimum speed adjusts module further include:
Third minimum speed updating unit: when determining that first ratio is less than first preset threshold, or when determination When the first start and stop unit frequency is greater than the predetermined threshold, or when determining first output power is sent out less than the wind-force Motor group from power consumption when, first minimum speed is updated to first minimum speed and minimum running speed is excellent Change the sum of step-length, and updated first minimum speed is supplied to the first comparing unit.
17. device as claimed in claim 11, which is characterized in that maximum (top) speed adjusts module and includes:
Turbulence intensity comparing unit: determine whether the turbulence intensity value is less than or equal to preset turbulence intensity value；
First maximum (top) speed acquiring unit: when determining that the turbulence intensity value is less than or equal to preset turbulence intensity value, The current maximum running speed of the wind power generating set is obtained, and using the current maximum running speed as first maximum turn Speed；
First maximum (top) speed updating unit: first maximum (top) speed is updated to first maximum (top) speed and maximum operation turns The sum of speed optimization step-length；
First determination unit: determine the load of corresponding with first maximum (top) speed wind power generating set whether be greater than or Person is equal to the predetermined load of the wind power generating set；
Second determination unit: when determining that the load is less than the predetermined load, determine whether first maximum (top) speed is small In or equal to the wind power generating set rated speed limiting value；
Maximum (top) speed determination unit: when determining that first maximum (top) speed is less than or equal to the rated speed limiting value, First maximum (top) speed is determined as to the maximum running speed of the wind power generating set.
18. device as claimed in claim 17, which is characterized in that maximum (top) speed adjusts module further include:
First step-length updating unit: when determining that the load is more than or equal to the predetermined load, or work as described in determination When first maximum (top) speed is greater than the rated speed limiting value, the maximum running speed optimization step-length is updated to maximum operation The half of rotational speed optimization step-length obtains the current maximum running speed of the wind power generating set, by the current maximum Running speed is supplied to the first maximum (top) speed updating unit as first maximum (top) speed, and by first maximum (top) speed.
19. device as claimed in claim 17, which is characterized in that maximum (top) speed adjusts module further include:
Second maximum (top) speed acquiring unit: when determining that the turbulence intensity value is greater than preset turbulence intensity value, described in acquisition The current maximum running speed of wind power generating set, and using the current maximum running speed as the first maximum (top) speed；
Second maximum (top) speed updating unit: first maximum (top) speed is updated to first maximum (top) speed and maximum operation turns The difference of speed optimization step-length；
Third determination unit: determine the load of corresponding with first maximum (top) speed wind power generating set whether be greater than or Person is equal to the predetermined load of the wind power generating set；
Third maximum (top) speed acquiring unit: when determining that the load is less than the predetermined load, the wind-driven generator is obtained The current maximum running speed of group, will the current maximum running speed as first maximum (top) speed, and by described first Maximum (top) speed is supplied to the first maximum (top) speed updating unit.
20. device as claimed in claim 19, which is characterized in that maximum (top) speed adjusts module further include:
Second step-length updating unit: when determining that the load is more than or equal to the predetermined load, by the maximum operation Rotational speed optimization step-length is updated to two times of maximum running speed optimization step-length, obtains the current maximum fortune of the wind power generating set The current maximum running speed is supplied to by row revolving speed as first maximum (top) speed, and by first maximum (top) speed Second maximum (top) speed updating unit.
21. a kind of computer readable storage medium, which is characterized in that be stored with and execute processor when being executed by a processor The computer journey of the method for the revolving speed for being adaptively adjusted wind power generating set as described in any one of claims 1 to 10 Sequence.
22. a kind of computing device characterized by comprising
Processor；
Memory is executed by processor for storing to work as so that processor is executed as described in any one of claims 1 to 10 The revolving speed for being adaptively adjusted wind power generating set method computer program.
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