CN109958576B - Method and device for controlling rotating speed of wind generating set - Google Patents

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

Info

Publication number
CN109958576B
CN109958576B CN201711434062.3A CN201711434062A CN109958576B CN 109958576 B CN109958576 B CN 109958576B CN 201711434062 A CN201711434062 A CN 201711434062A CN 109958576 B CN109958576 B CN 109958576B
Authority
CN
China
Prior art keywords
value
rotation speed
speed
rotating speed
rotational speed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201711434062.3A
Other languages
Chinese (zh)
Other versions
CN109958576A (en
Inventor
李永明
周桂林
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jinfeng Technology Co ltd
Original Assignee
Xinjiang Goldwind Science and Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xinjiang Goldwind Science and Technology Co Ltd filed Critical Xinjiang Goldwind Science and Technology Co Ltd
Priority to CN201711434062.3A priority Critical patent/CN109958576B/en
Publication of CN109958576A publication Critical patent/CN109958576A/en
Application granted granted Critical
Publication of CN109958576B publication Critical patent/CN109958576B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D7/00—Controlling wind motors 
    • 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)
    • 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
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/304—Spool rotational speed
    • 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

Landscapes

  • 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

A method and a device for controlling the rotating speed of a wind generating set are provided. The method comprises the following steps: detecting signals including the rotating speed and the rotating speed acceleration of the wind generating set in real time; determining whether the detected signal satisfies a predetermined condition; increasing the set rotational speed from a first value as a current value to a second value if the detected signal satisfies a predetermined condition; and controlling the pitch angle in real time based on the set rotating speed and the rotating speed of the wind generating set.

Description

Method and device for controlling rotating speed of wind generating set
Technical Field
The invention relates to the field of wind power generation, in particular to a method and a device for controlling the rotating speed of a wind generating set.
Background
Wind energy is increasingly paid more attention as a clean renewable energy source, and the loading amount is continuously increased. With the continuous development of wind power generation technology, various researches on wind generating sets are increasingly carried out.
When the wind generating set operates in an extreme gust environment, the limit load of the wind generating set is larger due to the fact that the rotating speed suddenly rises and then suddenly falls, and even the safe operation of the wind generating set is involved. Therefore, how to control the rotating speed of the wind generating set in an extreme gust environment to prevent the extreme load from being too large is an urgent problem to be solved.
Disclosure of Invention
The invention aims to provide a method and a device for controlling the rotating speed of a wind generating set.
One aspect of the invention provides a method of controlling a rotational speed of a wind turbine generator system, the method comprising: detecting signals including the rotating speed and the rotating speed acceleration of the wind generating set in real time; determining whether the detected signal satisfies a predetermined condition; if it is determined that the detected signal satisfies the predetermined condition, the set rotation speed is increased from a first value, which is a current value, to a second value. And controlling the pitch angle in real time based on the set rotating speed and the rotating speed of the wind generating set. Wherein the predetermined conditions are: the rotating speed of the wind generating set is greater than or equal to the safe rotating speed of the wind generating set, and the rotating speed acceleration of the wind generating set is smaller than zero.
Optionally, the step of increasing the set rotational speed from the first value to the second value comprises: the set rotational speed is gradually increased from a first value to a second value.
Optionally, the method further comprises: in the case where the set rotation speed is increased to be greater than the first value, if the rotation speed acceleration of the wind turbine generator set becomes not less than zero, the set rotation speed is reduced to the first value.
Optionally, the first value of the set rotational speed is equal to a rated rotational speed of the wind turbine generator set, and the second value of the set rotational speed is equal to the rated rotational speed of the wind turbine generator set multiplied by a predetermined coefficient.
Optionally, the method further comprises: if it is determined that the detected signal does not satisfy the predetermined condition, the set rotation speed is maintained.
Optionally, the method further comprises: if it is determined that the detected signal does not satisfy the predetermined condition, returning to the step of determining whether the detected signal satisfies the predetermined condition.
Optionally, the method further comprises: the set rotational speed is maintained at the second value for a predetermined time.
Optionally, the method further comprises: after the set rotation speed is maintained at the second value for a predetermined time, the set rotation speed is reduced from the second value to the first value.
Optionally, the step of reducing the set rotation speed from the second value to the first value comprises: the set rotational speed is gradually reduced from the second value to the first value.
Optionally, the method further comprises: after the set rotational speed is reduced to the first value, the step of determining whether the detected signal satisfies the predetermined condition is returned.
Another aspect of the present invention provides an apparatus for controlling a rotational speed of a wind turbine generator system, the apparatus comprising: the signal detection unit detects signals including the rotating speed and the rotating speed acceleration of the wind generating set in real time; a predetermined condition determining unit that determines whether the detected signal satisfies a predetermined condition; and a set rotating speed setting unit which increases the set rotating speed from a first value as a current value to a second value if the detected signal is determined to meet the predetermined condition, and a pitch angle control unit which controls the pitch angle in real time based on the set rotating speed and the rotating speed of the wind generating set. Wherein the predetermined conditions are: the rotating speed of the wind generating set is greater than or equal to the safe rotating speed of the wind generating set, and the rotating speed acceleration of the wind generating set is smaller than zero.
Alternatively, the set rotation speed setting unit increases the set rotation speed stepwise from a first value to a second value.
Alternatively, in a case where the set rotation speed is increased to be greater than the first value, the set rotation speed setting unit decreases the set rotation speed to the first value if the rotation speed acceleration of the wind turbine generator set becomes not less than zero.
Optionally, the first value of the set rotational speed is equal to a rated rotational speed of the wind turbine generator set, and the second value of the set rotational speed is equal to the rated rotational speed of the wind turbine generator set multiplied by a predetermined coefficient.
Alternatively, the set rotation speed setting unit keeps the set rotation speed unchanged if it is determined that the detected signal does not satisfy the predetermined condition.
Alternatively, if it is determined that the detected signal does not satisfy the predetermined condition, the predetermined condition determination unit continues to determine whether the detected signal satisfies the predetermined condition.
Alternatively, the set rotation speed setting unit maintains the set rotation speed at the second value for a predetermined time.
Alternatively, the set rotation speed setting unit decreases the set rotation speed from the second value to the first value after the set rotation speed is maintained at the second value for a predetermined time.
Alternatively, the set rotation speed setting unit gradually decreases the set rotation speed from the second value to the first value.
Alternatively, the predetermined condition determination unit may continue to determine whether the detected signal satisfies the predetermined condition after the set rotation speed is reduced to the first value.
Another aspect of the invention provides a system for controlling a rotational speed of a wind turbine generator system, the system comprising: a processor; a memory storing computer readable code which, when executed by the processor, performs the method described above.
Another aspect of the present invention provides a computer readable storage medium storing a computer program which, when executed, implements the method described above.
The method, the device and the system for controlling the rotating speed of the wind generating set adopt the flexible rotating speed control method, namely the set rotating speed is dynamically changed and increased in the stage of wind speed reduction or rotating speed reduction in gust, so that the pitch angle of the wind generating set is smaller than that of the control method without adopting the flexible rotating speed, and the pneumatic resistance in the front and back directions of the wind generating set is prevented from being suddenly reduced in the stage of wind speed reduction or rotating speed reduction in the gust, thereby preventing the limit load from being overlarge and simultaneously reducing the development cost of the whole machine.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a flow chart illustrating a method of flexible rotational speed control of a wind park in an extreme wind gust environment according to an embodiment of the present invention;
FIG. 2 is a block diagram illustrating a wind turbine generator set flexible speed control according to an embodiment of the present invention;
fig. 3 is a graph illustrating a flexible rotational speed control method of a wind turbine generator set according to an embodiment of the present invention.
Detailed Description
Various example embodiments will now be described more fully with reference to the accompanying drawings.
The method for controlling the flexible rotating speed of the wind generating set in the extreme gust environment will be described in detail by the aid of the figure 1.
Fig. 1 is a flow chart illustrating a method of flexible rotational speed control of a wind park in an extreme wind gust environment according to an embodiment.
Referring to fig. 1, in step S110, signals including the rotational speed and rotational speed acceleration of the wind turbine generator set are detected in real time.
The rotational speed and the rotational speed acceleration of the wind turbine generator system can be detected in various ways, and the invention is not limited. For example, the rotational speed of the wind turbine generator system may be detected by an anemometer, the rotational speed acceleration of the wind turbine generator system may be measured by an acceleration sensor, or the rotational speed acceleration may be obtained by differentiating the measured rotational speed.
In step S120, it is determined whether the detected signal satisfies a predetermined condition. Typically, a gust is a wind where the wind speed increases and then decreases. In the stage of wind speed increase of the gust, the wind generating set can adopt a conventional variable pitch control means, namely, the rotating speed of the wind generating set is controlled (reduced) by quickly retracting the pitch (increasing the pitch angle). However, in the stage of the wind speed reduction of the gust, in order to avoid the sudden reduction of the aerodynamic resistance of the wind turbine generator system in the front-rear direction with the reduction of the gust and the feathering operation, the wind turbine generator system may be subjected to flexible rotational speed control.
The predetermined condition in step S120 is a condition for determining whether the wind turbine generator set has entered a stage of wind speed reduction for a gust of wind. According to an embodiment of the inventive concept, the condition for determining whether the wind park has entered the stage of wind speed reduction of a wind gust may be: the rotating speed of the wind generating set is greater than or equal to the safe rotating speed of the wind generating set, and the rotating speed acceleration of the wind generating set is smaller than zero.
The safe rotating speed of the wind generating set represents a rotating speed which does not cause damage to the wind generating set when the actual operating rotating speed of the wind generating set is lower than the safe rotating speed. In other words, the safe rotational speed of the wind park may be the maximum rotational speed that ensures safe operation of the wind park without damage. For example, the safe rotational speed of the wind park may typically be higher than the rated rotational speed of the wind park. For example, the safe rotational speed of the wind park may be equal to the rated rotational speed of the wind park x the first predetermined FACTOR1, wherein the first predetermined FACTOR1 may be a real number greater than 1, preferably between 1 and 2. The first predetermined FACTOR1 may be determined based on different models of wind turbine generator sets, different climatic environments at the location of the wind turbine generator sets, different power generation tasks performed by the wind turbine generator sets, past experience in operating the wind turbine generator sets, and the like.
In step S130, if it is determined that the detected signal satisfies the predetermined condition, the set rotation speed is increased from the first value as the current value to the second value.
Here, the set rotation speed is a desired rotation speed of the wind turbine generator system, and the pitch control process of the wind turbine generator system is a process of adjusting an actual rotation speed of the wind turbine generator system to the set rotation speed (desired rotation speed). For example, when the difference between the rotating speed of the wind generating set and the set rotating speed is greater than zero, the wind generating set executes a blade retracting operation to increase the pitch angle; when the difference between the rotating speed of the wind generating set and the set rotating speed is less than zero, the wind generating set executes the operation of opening the propeller to reduce the pitch angle; and when the difference between the rotating speed of the wind generating set and the set rotating speed is equal to zero, the wind generating set does not execute pitch variation operation. It should be understood that pitch control based on the set rotating speed and the actual rotating speed belongs to the prior art, and is not described in detail.
The first value of the set rotating speed is equal to the rated rotating speed of the wind generating set, and the second value of the set rotating speed is higher than the first value. For example, the second value of the set rotational speed may be equal to the rated rotational speed of the wind turbine generator set x the second predetermined FACTOR 2. That is, in response to the detected signal satisfying the predetermined condition (i.e., the rotational speed of the wind park is greater than or equal to the safe rotational speed of the wind park and the rotational speed acceleration of the wind park is less than zero), the set rotational speed of the wind park is increased to a second value (i.e., the rated rotational speed x a second predetermined FACTOR 2). The second predetermined coefficient FACTOR2 may be a real number greater than 1, and preferably may be a real number between 1 and 2. The second predetermined FACTOR2 may be determined based on different models of wind turbine generator sets, different climatic environments at the location of the wind turbine generator sets, different power generation tasks performed by the wind turbine generator sets, past experience in operating the wind turbine generator sets, and the like. The first predetermined FACTOR1 may or may not be the same as the second predetermined FACTOR 2.
The set rotational speed may be increased from the first value to the second value in various ways. For example, the set rotational speed may be increased directly from the first value to the second value. Preferably, the set rotation speed may be gradually increased from a first value to a second value.
By increasing the set rotating speed, the pitch angle of the wind generating set is smaller than that of a control method without adopting a flexible rotating speed, and the sudden decrease of the aerodynamic resistance of the wind generating set in the front and back directions in the stages of wind speed reduction or rotating speed reduction in gust is avoided, so that the overlarge limit load is prevented, and the development cost of the whole machine is reduced.
In a preferred embodiment, the method further comprises: if it is determined at step S120 that the detected signal does not satisfy the predetermined condition, the current set rotational speed is maintained or is not updated. In a preferred embodiment, if the detected signal does not satisfy the predetermined condition, the step of determining whether the detected signal satisfies the predetermined condition is returned (S120).
In a preferred embodiment, the method further comprises: in the case where the set rotation speed is increased to be greater than the first value through step S130, if the rotation speed acceleration of the wind turbine generator set becomes not less than zero, the set rotation speed is decreased to the first value. Here, in the case where the set rotation speed is increased to be greater than the first value, if the rotation speed acceleration of the wind turbine generator set becomes not less than zero, it indicates that the wind turbine generator set is not in the wind speed decreasing phase in the gust of wind but in the wind speed increasing phase in the gust of wind.
In one embodiment, the method further comprises: the set rotational speed is maintained at the second value for a predetermined time. For example, the set rotational speed may be maintained at the second value for the same time as the duration of the wind speed reduction phase in the gust, or the set rotational speed may be maintained at the second value for a shorter time than the duration of the wind speed reduction phase in the gust, or the set rotational speed may be maintained at the second value for a longer time than the duration of the wind speed reduction phase in the gust.
In a preferred embodiment, the set rotation speed is reduced from the second value to the first value after the set rotation speed is maintained at the second value for a predetermined time.
The set rotational speed may be reduced to the first value in various ways. For example, the set rotational speed may be directly reduced to the first value. Preferably, the set rotation speed may be gradually reduced to a first value.
In a preferred embodiment, the method further comprises: after the set rotation speed is reduced to the first value, the step of determining whether the detected signal satisfies the predetermined condition is returned to (S130).
In the above process of executing steps S110 to S130, the pitch angle is controlled in real time based on the set rotation speed and the rotation speed of the wind turbine generator set. Since the set rotation speed is changed (increased) at the stage of wind speed reduction of the gust, flexible rotation speed control is realized.
The above is only one example of a method for realizing flexible rotation speed control of a wind generating set in an extreme gust environment, and the method for realizing flexible rotation speed control is not limited to this.
The flexible rotating speed control device of the wind generating set of the invention is described below with reference to fig. 2.
Fig. 2 is a block diagram illustrating a flexible rotational speed control apparatus of a wind turbine generator set according to an embodiment of the present invention.
Referring to fig. 2, the flexible rotation speed control device 200 of the wind generating set includes: a signal detection unit 210, a predetermined condition determination unit 220, a set rotational speed setting unit 230, and a pitch angle control unit 240.
The signal detection unit 210 detects signals including the rotation speed and the rotation speed acceleration of the wind turbine generator system in real time. The signal detection unit 210 may measure the rotation speed and the rotation speed acceleration of the wind turbine generator system by using an internal sensor, or may detect the rotation speed and the rotation speed acceleration of the wind turbine generator system by using an external sensor according to actual needs. An external detector may be used instead of the signal detection unit 210.
The predetermined condition determining unit 220 determines whether the detected signal satisfies a predetermined condition. Here, the predetermined condition is the same as the predetermined condition described with reference to fig. 1.
The set rotation speed setting unit 230 increases the set rotation speed from a first value, which is a current value, to a second value if it is determined that the detected signal satisfies a predetermined condition. Here, the first and second values of the set rotation speed are the same as those of the set rotation speed described in operation fig. 1. For example, the set rotational speed may be increased directly from the first value to the second value. Preferably, the set rotation speed may be gradually increased from a first value to a second value.
In one embodiment, in the case where the set rotation speed is increased to be greater than the first value, if the rotation speed acceleration of the wind turbine generator set becomes not less than zero, the set rotation speed setting unit 230 decreases the set rotation speed to the first value.
In one embodiment, if the detected signal does not satisfy the predetermined condition, the set rotational speed setting unit 230 keeps the set rotational speed unchanged, or keeps the current set rotational speed unchanged.
In a preferred embodiment, if it is determined that the detected signal does not satisfy the predetermined condition, the predetermined condition determination 220 unit continues to determine whether the detected signal satisfies the predetermined condition.
In one embodiment, the set rotation speed setting unit 230 maintains the set rotation speed at the second value for a predetermined time.
In a preferred embodiment, the set rotation speed setting unit decreases the set rotation speed from the second value to the first value after the set rotation speed is maintained at the second value for a predetermined time. In one embodiment, the set rotational speed may be reduced to the first value in various ways. For example, the set rotational speed may be directly reduced to the first value. Preferably, the set rotation speed may be gradually reduced to a first value.
In one embodiment, the predetermined condition determining unit 220 continues to determine whether the detected signal satisfies the predetermined condition after the set rotation speed is reduced to the first value.
The pitch angle control unit 240 controls the pitch angle based on the set rotation speed and the rotation speed of the wind turbine generator set in real time.
The effect of the flexible rotating speed control method of the wind generating set of the present invention is described below with reference to fig. 3.
Fig. 3 is a graph illustrating a flexible rotational speed control method of a wind turbine generator set according to an embodiment of the present invention.
Referring to FIG. 3, the graph depicts the results of a full gust simulation for a mean wind speed of 11.1m/s, a superimposed amplitude of 15m/s, a rated speed of 12.3rpm, and a FACTOR2 of 1.05. Wherein the horizontal axes in fig. 3 each represent time(s), (a) shows a change in wind speed (m/s) with time, (b) shows a change in set rotational speed (rpm) with time, (c) shows a change in wind turbine rotational speed (rpm) with time, (d) shows a change in pitch angle (degrees) with time, and (e) shows a change in wind turbine tower top load (kN/m) with time. Further, in fig. 3, a solid line indicates data of the flexible rotational speed control method not adopting the inventive concept, and a dotted line indicates data of the flexible rotational speed control method sampling the inventive concept.
As shown in fig. 3, in the wind speed increase stage of the gust, the rotation speed of the wind turbine generator system is continuously increased, so that the pitch control system executes the pitch retracting operation to avoid the over-high rotation speed. At this time, the method of controlling the rotational speed of the wind turbine generator set according to the present inventive concept does not change the set rotational speed (refer to fig. 3 (b)).
In the stage of wind speed reduction of gust, the rotating speed of the wind generating set is continuously reduced, the method for controlling the rotating speed of the wind generating set according to the concept of the invention increases the set rotating speed from a first value of 12.3rpm to a second value of 12.9rpm, so that the pitch angle is driven to be fast, compared with the method for controlling the rotating speed of the wind generating set which does not adopt the concept of the invention, the pitch angle at the same moment is smaller, the aerodynamic force received is relatively larger, the aerodynamic resistance in the front and back directions of an impeller of the wind generating set is improved, the displacement shake of the wind generating set is reduced, and the maximum value (namely, the limit value) of the tower top load is obviously reduced (as shown in (e) of fig..
According to an embodiment of the invention, the invention further provides a system for controlling the rotating speed of the wind generating set. The system comprises: a processor and a memory. The memory stores a computer program which, when executed by the processor, implements the above described method of controlling the rotational speed of a wind park according to an embodiment of the invention.
Furthermore, it should be understood that the respective units in the device according to the exemplary embodiment of the present invention may be implemented as hardware components and/or software components. The individual units may be implemented, for example, using Field Programmable Gate Arrays (FPGAs) or Application Specific Integrated Circuits (ASICs), depending on the processing performed by the individual units as defined by the skilled person.
Further, the above-described method according to an exemplary embodiment of the present invention may be implemented as a computer program in a computer-readable recording medium. The computer program may be implemented by a person skilled in the art from the description of the method described above. The above-described method of the present invention is implemented when the computer program is executed in a computer.
The method, the device and the system for controlling the rotating speed of the wind generating set adopt the flexible rotating speed control method, namely the set rotating speed is dynamically changed and increased in the stage of wind speed reduction or rotating speed reduction in gust, so that the pitch angle of the wind generating set is smaller than that of the control method without adopting the flexible rotating speed, and the pneumatic resistance in the front and back directions of the wind generating set is prevented from being suddenly reduced in the stage of wind speed reduction or rotating speed reduction in the gust, thereby preventing the limit load from being overlarge and simultaneously reducing the development cost of the whole machine.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims.

Claims (18)

1. A method of controlling the rotational speed of a wind turbine generator system, the method comprising:
detecting signals including the rotating speed and the rotating speed acceleration of the wind generating set in real time;
determining whether the detected signal satisfies a predetermined condition;
increasing the set rotational speed from a first value as a current value to a second value if it is determined that the detected signal satisfies a predetermined condition;
wherein, the pitch angle is controlled in real time based on the set rotating speed and the rotating speed of the wind generating set,
wherein the predetermined conditions are: the rotating speed of the wind generating set is greater than or equal to the safe rotating speed of the wind generating set, the rotating speed acceleration of the wind generating set is less than zero,
the safe rotating speed of the wind generating set is greater than the rated rotating speed of the wind generating set.
2. The method of claim 1, wherein the step of increasing the set rotational speed from a first value to a second value comprises:
the set rotational speed is gradually increased from a first value to a second value.
3. The method of claim 1, wherein the method further comprises:
in the case where the set rotation speed is increased to be greater than the first value, if the rotation speed acceleration of the wind turbine generator set becomes not less than zero, the set rotation speed is reduced to the first value.
4. The method of claim 1, wherein the first value of the set rotational speed is equal to a rated rotational speed of the wind turbine generator set, and the second value of the set rotational speed is equal to the rated rotational speed of the wind turbine generator set multiplied by a predetermined factor.
5. The method of claim 1, wherein the method further comprises:
if it is determined that the detected signal does not satisfy the predetermined condition, the set rotation speed is maintained.
6. The method of claim 1, wherein the method further comprises:
the set rotational speed is maintained at the second value for a predetermined time.
7. The method of claim 6, wherein the method further comprises:
after the set rotation speed is maintained at the second value for a predetermined time, the set rotation speed is reduced from the second value to the first value.
8. The method of claim 7, wherein the step of reducing the set rotational speed from the second value to the first value comprises:
the set rotational speed is gradually reduced from the second value to the first value.
9. An apparatus for controlling a rotational speed of a wind turbine generator system, the apparatus comprising:
the signal detection unit detects signals including the rotating speed and the rotating speed acceleration of the wind generating set in real time;
a predetermined condition determining unit that determines whether the detected signal satisfies a predetermined condition;
a set rotation speed setting unit that increases the set rotation speed from a first value as a current value to a second value if the detected signal satisfies a predetermined condition;
a pitch angle control unit for controlling the pitch angle in real time based on the set rotation speed and the rotation speed of the wind generating set,
wherein the predetermined conditions are: the rotating speed of the wind generating set is greater than or equal to the safe rotating speed of the wind generating set, the rotating speed acceleration of the wind generating set is less than zero,
the safe rotating speed of the wind generating set is greater than the rated rotating speed of the wind generating set.
10. The apparatus according to claim 9, wherein the set rotation speed setting unit increases the set rotation speed stepwise from a first value to a second value.
11. The apparatus according to claim 9, wherein the set rotation speed setting unit reduces the set rotation speed to the first value if the rotation speed acceleration of the wind turbine generator set becomes not less than zero in a case where the set rotation speed is increased to be greater than the first value.
12. The apparatus of claim 9, wherein the first value of the set rotational speed is equal to a rated rotational speed of the wind turbine generator set, and the second value of the set rotational speed is equal to the rated rotational speed of the wind turbine generator set multiplied by a predetermined factor.
13. The apparatus of claim 9, wherein the set rotation speed setting unit maintains the set rotation speed constant if it is determined that the detected signal does not satisfy the predetermined condition.
14. The apparatus according to claim 9, wherein the set rotation speed setting unit maintains the set rotation speed at the second value for a predetermined time.
15. The apparatus according to claim 14, wherein the set rotation speed setting unit decreases the set rotation speed from the second value to the first value after the set rotation speed is maintained at the second value for a predetermined time.
16. The apparatus according to claim 15, wherein the set rotation speed setting unit decreases the set rotation speed stepwise from the second value to the first value.
17. A system for controlling the rotational speed of a wind turbine generator system, the system comprising:
a processor;
memory storing a computer program which, when executed by the processor, performs the method of any one of claims 1 to 8.
18. A computer-readable storage medium storing a computer program which, when executed, implements the method of any of claims 1 to 8.
CN201711434062.3A 2017-12-26 2017-12-26 Method and device for controlling rotating speed of wind generating set Active CN109958576B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711434062.3A CN109958576B (en) 2017-12-26 2017-12-26 Method and device for controlling rotating speed of wind generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711434062.3A CN109958576B (en) 2017-12-26 2017-12-26 Method and device for controlling rotating speed of wind generating set

Publications (2)

Publication Number Publication Date
CN109958576A CN109958576A (en) 2019-07-02
CN109958576B true CN109958576B (en) 2020-05-26

Family

ID=67022265

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711434062.3A Active CN109958576B (en) 2017-12-26 2017-12-26 Method and device for controlling rotating speed of wind generating set

Country Status (1)

Country Link
CN (1) CN109958576B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110594098A (en) * 2019-09-12 2019-12-20 华电电力科学研究院有限公司 Over-speed control method for impeller of wind turbine generator
CN114198250B (en) * 2020-09-02 2023-10-31 北京金风科创风电设备有限公司 Variable pitch control method and device of wind turbine generator
CN112796939B (en) * 2021-01-05 2022-04-01 上海电气风电集团股份有限公司 Load reduction method for wind driven generator
CN112796943B (en) * 2021-03-26 2022-03-01 中国华能集团清洁能源技术研究院有限公司 Operation control method and system for wind turbine generator set under extreme wind power condition
CN114458534B (en) * 2022-01-06 2023-05-02 华能大理风力发电有限公司 Wind turbine generator rotating speed control method and system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170000933A (en) * 2015-06-25 2017-01-04 한국전기연구원 Pitch control system of wind turbines using time delay estimation and control method thereof
CN105756854A (en) * 2016-03-03 2016-07-13 北京金风科创风电设备有限公司 Variable pitch control method, device and system of wind generating set
CN106368898B (en) * 2016-09-14 2019-01-08 许继集团有限公司 A kind of Large-scale Wind Turbines adjustment control method and device

Also Published As

Publication number Publication date
CN109958576A (en) 2019-07-02

Similar Documents

Publication Publication Date Title
CN109958576B (en) Method and device for controlling rotating speed of wind generating set
US8301310B2 (en) Wind turbine operational method
US8202048B2 (en) Method of operating a wind turbine and wind turbine
EP2444659B1 (en) Method and system for adjusting a power parameter of a wind turbine
CN107559144B (en) Method and system for feed-forward control of a wind turbine
US8527453B2 (en) Method and system for predicting the occurrence of a wind gust at a wind turbine
CN108350862A (en) Electric power using the wind turbine of Model Predictive Control enhances
CN108894918B (en) Pitch control method and device and computer readable storage medium
EP2784303A1 (en) Method of operating a wind turbine
US10767620B2 (en) Water current power generation systems
CN111712631B (en) Tower damping in wind turbine power production
JP2010507044A (en) Method and system for deriving wind speed in a stall controlled wind turbine
CN111712632A (en) Tower damping in wind turbine power production
EP3594489B1 (en) Noise control method and device for wind power generator set
EP4130461A1 (en) Load reduction control method for wind turbine generator and device
CN108150351B (en) Method and device for controlling starting and grid connection of wind generating set and storage medium
CN113357097A (en) Blade clamping detection method and device of wind generating set
CN113090456A (en) Method, system and equipment for controlling pitch angle of wind turbine generator set under strong wind condition
CN114060210B (en) Load reduction control method, device and control system of wind turbine generator
CN113883007B (en) Control method and device of wind generating set and electronic equipment
CN117404259B (en) Wind driven generator blade clearance monitoring method, device, equipment and storage medium
CN113007013B (en) Torsion load control method, device and system and wind generating set
WO2024099527A1 (en) Determining wind speed at a wind turbine
US20210340957A1 (en) Control of a wind energy installation
CN114297819A (en) Control method and device of wind generating set and computer readable storage medium

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region

Patentee after: Jinfeng Technology Co.,Ltd.

Address before: 830026 No. 107, Shanghai Road, Urumqi economic and Technological Development Zone, the Xinjiang Uygur Autonomous Region

Patentee before: XINJIANG GOLDWIND SCIENCE & TECHNOLOGY Co.,Ltd.

CP01 Change in the name or title of a patent holder