CN108252857B - Vibration reduction method and device of wind generating set - Google Patents
Vibration reduction method and device of wind generating set Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
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- 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
- F05B2260/00—Function
- F05B2260/96—Preventing, counteracting or reducing vibration or noise
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- 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
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Abstract
The invention provides a vibration reduction method and a device of a wind generating set, wherein the method comprises the following steps: acquiring a generator rotating speed signal of the wind generating set; processing the generator rotating speed signal to obtain a control component; processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters; and controlling the wind generating set according to the synthesized working parameters. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized working parameters can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the operation of the wind generating set are ensured.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a vibration reduction method and device of a wind generating set.
Background
Wind power generation has been well applied as a new energy source, and generally, a wind power generator set is adopted to generate wind power, and the wind power generator set is an important tool for collecting wind energy and converting the wind energy into electric energy.
In the prior art, the blade of the wind generating set has the problem of shimmy in the rotating direction; after the wind generating set operates, an impeller of the wind generating set rotates, and the shimmy of the impeller and the wind generating set form resonance.
In the prior art, the shimmy of the impeller and the wind generating set can form resonance, and then serious vibration of the wind generating set can be caused, however, no solution is provided for the problem in the prior art, so that the serious vibration of the wind generating set can cause damage of devices of the wind generating set, and further the safety problem of the wind generating set is caused, and the normal work of the wind generating set is influenced.
Disclosure of Invention
The invention provides a vibration reduction method and device of a wind generating set, which are used for solving the problems that in the prior art, the shimmy of an impeller and the wind generating set can form resonance, so that the serious vibration problem of the wind generating set can cause the damage of devices of the wind generating set, further the safety problem of the wind generating set can be caused, and the normal work of the wind generating set is influenced.
One aspect of the present invention provides a vibration reduction method for a wind turbine generator system, including:
acquiring a generator rotating speed signal of the wind generating set;
processing the generator rotating speed signal to obtain a control component;
processing working parameters of the wind generating set according to the control component to obtain synthesized working parameters, wherein the working parameters are quadrature axis current set values or torque set values;
and controlling the wind generating set according to the synthesized working parameters.
Another aspect of the present invention provides a vibration damping device for a wind turbine generator system, including:
the acquisition module is used for acquiring a generator rotating speed signal of the wind generating set;
the control component processing module is used for processing the rotating speed signal of the generator to obtain a control component;
the working parameter processing module is used for processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters, wherein the working parameters are quadrature axis current given values or torque given values;
and the control module is used for controlling the wind generating set according to the synthesized working parameters.
The invention has the technical effects that: obtaining a generator rotating speed signal of the wind generating set; processing the generator rotating speed signal to obtain a control component; processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters; and controlling the wind generating set according to the synthesized working parameters. Because the vibration frequency of the control component is the same as the vibration frequency of the wind generating set, and the working parameters of the wind generating set are in direct proportion to the torque of the wind generating set, the synthesized working parameters are obtained according to the control component and the working parameters of the wind generating set, and the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the synthesized working parameters. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized working parameters can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the operation of the wind generating set are ensured.
Drawings
Fig. 1 is a flowchart of a vibration reduction method for a wind turbine generator system according to an embodiment of the present invention;
FIG. 2 is a flowchart of a damping method for a wind turbine generator system according to a second embodiment of the present invention;
FIG. 3 is a first algorithm block diagram of a vibration reduction method of a wind turbine generator system according to a second embodiment of the present invention;
FIG. 4 is a second algorithm block diagram of a vibration reduction method of a wind turbine generator system according to a second embodiment of the present invention;
fig. 5 is a schematic structural diagram of a vibration damping device of a wind generating set according to a third embodiment of the present invention;
fig. 6 is a schematic structural diagram of a vibration damping device of a wind turbine generator system according to a fourth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a flowchart of a vibration reduction method of a wind turbine generator system according to an embodiment of the present invention, and as shown in fig. 1, the method of the embodiment includes:
The specific implementation manner of step 101 is as follows:
acquiring a generator rotating speed signal of the wind generating set through an estimation algorithm;
alternatively, the first and second electrodes may be,
and measuring a generator rotating speed signal of the wind generating set through a rotating speed sensor.
In this embodiment, the execution subject of this embodiment is specifically a fan controller or a converter controller of a wind turbine generator system, or another device connected to the wind turbine generator system, but this embodiment is not limited to this.
Firstly, a generator rotating speed signal of the wind generating set needs to be acquired. Specifically, in the control process of the wind generating set, a generator rotating speed signal of the wind generating set can be estimated through a fan controller or a converter controller according to a preset estimation algorithm; or, the fan controller or the converter controller is connected with a rotating speed sensor, and the fan controller or the converter controller can measure a generator rotating speed signal of the wind generating set through the rotating speed sensor. The generator speed of the wind turbine generator system is also referred to as electrical angular velocity and electrical angular frequency.
And 102, processing the rotating speed signal of the generator to obtain a control component.
In this embodiment, specifically, a preset processing algorithm or a preset processor is adopted to process the collected generator rotation speed signal, and then a control component is calculated.
And 103, processing the working parameters of the wind generating set according to the control components to obtain the synthesized working parameters, wherein the working parameters are the set values of quadrature axis current or torque.
In this embodiment, specifically, the control component calculated in step 102 and the operating parameter of the wind turbine generator set are subjected to preset calculation, for example, the calculated control component and the operating parameter of the wind turbine generator set are summed, so that the operating parameter of the wind turbine generator set is processed according to the control component, and a synthesized operating parameter is obtained. The working parameters are set values of quadrature axis current or torque, and the like.
For example, if the working parameter is a quadrature axis current given value, the quadrature axis current given value of the wind generating set can be processed according to the control component to obtain a synthesized quadrature axis current given value; or, if the working parameter is a torque set value, the torque set value of the wind generating set can be processed according to the control component to obtain a synthesized torque set value.
And 104, controlling the wind generating set according to the synthesized working parameters.
In this embodiment, specifically, the obtained synthesized working parameters are added to the working process of the wind turbine generator system, for example, the synthesized working parameters are transmitted to a current controller of the wind turbine generator system, so that the current controller operates according to the synthesized working parameters, and further, the work of the wind turbine generator system is completed. At the moment, because the vibration frequency of the control component is the same as the vibration frequency of the wind generating set, and the working parameter of the wind generating set is in direct proportion to the torque of the wind generating set, the synthesized working parameter is obtained according to the control component and the working parameter of the wind generating set, and the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the synthesized working parameter. And then, controlling the wind generating set through the synthesized working parameters to counteract the vibration of the impeller of the wind generating set in the rotating direction.
For example, the wind generating set is operated according to a synthesized quadrature axis current set value, and the synthesized quadrature axis current set value can counteract the vibration of the impeller of the wind generating set in the rotating direction.
In the embodiment, a generator rotating speed signal of the wind generating set is obtained; processing the generator rotating speed signal to obtain a control component; processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters; and controlling the wind generating set according to the synthesized working parameters. Because the vibration frequency of the control component is the same as the vibration frequency of the wind generating set, and the working parameters of the wind generating set are in direct proportion to the torque of the wind generating set, the synthesized working parameters are obtained according to the control component and the working parameters of the wind generating set, and the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the synthesized working parameters. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized working parameters can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the operation of the wind generating set are ensured.
Fig. 2 is a flowchart of a vibration reduction method of a wind turbine generator system according to a second embodiment of the present invention, fig. 3 is a first algorithm block diagram of the vibration reduction method of the wind turbine generator system according to the second embodiment of the present invention, fig. 4 is a second algorithm block diagram of the vibration reduction method of the wind turbine generator system according to the second embodiment of the present invention, and based on the first embodiment, as shown in fig. 2, fig. 3 and fig. 4, in the method according to the present embodiment, a control component is an inverted alternating current component; step 102 specifically includes:
In this embodiment, specifically, as shown in fig. 3 and 4, the generator speed signal of the wind generating set may be obtained through an estimation method or a speed sensor, and then the generator speed signal is transmitted to a low-pass filter, where the low-pass filter performs filtering processing on the generator speed signal, and then the low-pass filter outputs the filtered generator speed signal.
Then, because the generator rotation speed signal has an alternating current component with the same frequency as the vibration frequency of the wind generating set, the filtered generator rotation speed signal can be input into a control component processing module, firstly, the alternating current component acquisition submodule in the control component processing module extracts the filtered generator rotation speed signal, and extracts a signal with a preset frequency range in the filtered generator rotation speed signal as an alternating current component. The gain processing may be to amplify the ac component or to reduce the ac component. Also, the alternating current component may be a sine waveform component, or a cosine waveform component, or other waveform components.
For example, the ac component obtaining sub-module may adopt a Band-Pass Filter (BPF for short), where the Band-Pass Filter extracts the filtered generator speed signal to extract a signal in a preset frequency range from the filtered generator speed signal, and the signal in the preset frequency range is an ac component in the generator speed signal. During the process of extracting the filtered generator speed signal by the band-pass filter, the center frequency of the band-pass filter needs to be adjusted, and the ac component in the generator speed signal needs to be subjected to gain processing. Specifically, a vibration sensor can be mounted on the wind generating set, a vibration signal of the wind generating set is obtained through the vibration sensor, the obtained vibration signal of the wind generating set is analyzed, the vibration frequency and the vibration amplitude of the vibration signal of the wind generating set are extracted, then the center frequency of the band-pass filter is set to be consistent with the vibration frequency of the vibration signal of the wind generating set, and further the parameter of the center frequency of the band-pass filter is automatically adjusted; the ac component extracted from the generator rotational speed signal is subjected to gain processing, which may be signal amplification or signal reduction of the ac component, that is, adjustment of the value of the band-pass filter gain, and further signal amplification or signal reduction of the ac component.
Then, the alternating current component obtaining submodule transmits the extracted alternating current component to a negation submodule in the control component processing module, the negation submodule performs negation on the alternating current component to obtain the negated alternating current component, and the negated alternating current component can be used as the control component. Specifically, the specific process of inverting the alternating current component is as follows: when the alternating current component is a positive value, the positive alternating current component + A is converted into a negative alternating current component-A, when the alternating current component is a negative value, the negative alternating current component-A is converted into the positive alternating current component + A, and in the process, the absolute value A of the alternating current component is unchanged.
When the working parameter is a quadrature axis current given value, step 103 specifically includes:
and summing the inverted alternating current component and the given value of the quadrature axis current of the wind generating set to obtain the synthesized given value of the quadrature axis current.
In this embodiment, specifically, when the working parameter is the quadrature axis current given value, the inverted ac component and the quadrature axis current given value of the wind turbine generator system are summed, so that a synthesized quadrature axis current given value can be obtained. And the summation processing is the addition processing of the quadrature axis current set value of the wind generating set and the inverted alternating current component.
The problem that an impeller of a wind generating set shakes in the rotating direction of blades of the wind generating set exists, a vibrating body of the wind generating set is on the rotating speed of a generator, and therefore alternating current components with the same frequency as the vibrating frequency of the wind generating set exist in a rotating speed signal of the generator. Extracting an alternating current component in a generator rotating speed signal, then obtaining a parameter value of the central frequency of a submodule through automatically adjusting a parameter value of gain processing and the alternating current component, further obtaining a synthetic quadrature axis current set value after the obtained alternating current component is subjected to inversion processing and added to the quadrature axis current set value of the wind generating set, and then reducing the vibration amplitude of the wind generating set to be below a standard after the wind generating set operates according to the synthetic quadrature axis current set value; furthermore, the parameter value of gain processing and the parameter value of the center frequency of the alternating current component acquisition sub-module can be adjusted continuously, after the synthesized alternating current given value is obtained, the wind generating set operates according to the synthesized alternating current given value, and the vibration amplitude of the wind generating set is reduced below the standard when the parameter value of gain processing and the parameter value of the center frequency are adjusted continuously, so that the vibration of the wind generating set is restrained.
Correspondingly, step 104 specifically includes:
and 204, controlling the wind generating set according to the synthesized quadrature axis current set value so as to counteract the vibration of the impeller of the wind generating set in the rotating direction through the synthesized quadrature axis current set value.
In this embodiment, specifically, since the inverted ac component is summed with the quadrature axis current set value of the wind turbine generator system, a synthesized quadrature axis current set value is obtained. As shown in fig. 3, the synthesized quadrature axis current given value is transmitted to a current controller of the wind turbine generator system, so that the current controller operates according to the synthesized quadrature axis current given value, thereby completing the work of the wind turbine generator system. And a reverse quadrature axis current signal with a phase difference of 180 degrees with a vibration component in a generator rotating speed signal exists in the synthesized quadrature axis current set value, and the quadrature axis current set value of the wind generating set is in direct proportion to the torque of the engine, so that the vibration of the impeller of the wind generating set in the rotating direction is counteracted through the synthesized quadrature axis current set value, and the resonance between the shimmy of the impeller and the wind generating set is further eliminated.
In the embodiment, a generator rotating speed signal of the wind generating set is obtained; carrying out signal processing on the rotating speed signal of the generator to obtain an alternating current component; negating the alternating current component to obtain a negated alternating current component; summing the inverted alternating current component and a quadrature axis current set value of the wind generating set to obtain a synthesized quadrature axis current set value; and controlling the wind generating set according to the synthesized quadrature axis current set value so as to counteract the vibration of the impeller of the wind generating set in the rotating direction through the synthesized quadrature axis current set value. Because the vibration frequency of the inverted alternating current component is the same as the vibration frequency of the wind generating set, and the given value of the quadrature axis current of the wind generating set is in direct proportion to the torque of the wind generating set, the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the given value of the quadrature axis current obtained according to the inverted alternating current component and the given value of the quadrature axis current of the wind generating set. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized quadrature axis current set value can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the work of the wind generating set are ensured.
Fig. 5 is a schematic structural diagram of a vibration damping device of a wind turbine generator system according to a third embodiment of the present invention, and as shown in fig. 5, the device according to the present embodiment includes:
the acquisition module 31 is used for acquiring a generator rotating speed signal of the wind generating set;
the control component processing module 32 is used for processing the generator rotating speed signal to obtain a control component;
the working parameter processing module 33 is used for processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters, wherein the working parameters are quadrature axis current given values or torque given values;
and the control module 34 is used for controlling the wind generating set according to the synthesized working parameters.
The vibration reduction device of the wind generating set of the embodiment can execute the vibration reduction method of the wind generating set provided by the first embodiment of the invention, the implementation principles are similar, and the details are not repeated here.
In the embodiment, a generator rotating speed signal of the wind generating set is obtained; processing the generator rotating speed signal to obtain a control component; processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters; and controlling the wind generating set according to the synthesized working parameters. Because the vibration frequency of the control component is the same as the vibration frequency of the wind generating set, and the working parameters of the wind generating set are in direct proportion to the torque of the wind generating set, the synthesized working parameters are obtained according to the control component and the working parameters of the wind generating set, and the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the synthesized working parameters. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized working parameters can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the operation of the wind generating set are ensured.
Fig. 6 is a schematic structural diagram of a vibration damping device of a wind turbine generator system according to a fourth embodiment of the present invention, and based on the third embodiment, as shown in fig. 6, the device according to the present embodiment, a control component processing module 32 includes:
the alternating current component obtaining submodule 321 is configured to extract a signal in a preset frequency range from the generator rotation speed signal to obtain an alternating current component;
and the negation submodule 322 is configured to negate the alternating current component, and use the negated alternating current component as the control component.
The working parameter processing module 33 is specifically configured to:
and summing the inverted alternating current component and the given value of the quadrature axis current of the wind generating set to obtain the synthesized given value of the quadrature axis current.
The obtaining module 31 is specifically configured to:
acquiring a generator rotating speed signal of the wind generating set through an estimation algorithm;
alternatively, the first and second electrodes may be,
the acquisition module is a rotating speed sensor and is used for measuring a generator rotating speed signal of the wind generating set.
The vibration reduction device of the wind generating set of the embodiment can execute the vibration reduction method of the wind generating set provided by the second embodiment of the invention, the implementation principles are similar, and the details are not repeated here.
In the embodiment, a generator rotating speed signal of the wind generating set is obtained; carrying out signal processing on the rotating speed signal of the generator to obtain an alternating current component; negating the alternating current component to obtain a negated alternating current component; summing the inverted alternating current component and a quadrature axis current set value of the wind generating set to obtain a synthesized quadrature axis current set value; and controlling the wind generating set according to the synthesized quadrature axis current set value so as to counteract the vibration of the impeller of the wind generating set in the rotating direction through the synthesized quadrature axis current set value. Because the vibration frequency of the inverted alternating current component is the same as the vibration frequency of the wind generating set, and the given value of the quadrature axis current of the wind generating set is in direct proportion to the torque of the wind generating set, the vibration of the impeller of the wind generating set in the rotating direction can be counteracted in the process of controlling the operation of the wind generating set according to the given value of the quadrature axis current obtained according to the inverted alternating current component and the given value of the quadrature axis current of the wind generating set. Therefore, the wind generating set can operate according to the synthesized working parameters, and in the operation process, the synthesized quadrature axis current set value can counteract the vibration of the impeller in the rotating direction, so that the resonance between the shimmy of the impeller and the wind generating set is inhibited, the damage of devices of the wind generating set is prevented, the normal operation of the wind generating set is further ensured, and the safety problem of the wind generating set and the work of the wind generating set are ensured.
Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (4)
1. A vibration reduction method of a wind generating set is characterized by comprising the following steps:
acquiring a generator rotating speed signal of the wind generating set; the generator rotating speed signal has an alternating current component with the same frequency as the vibration frequency of the wind generating set;
processing the generator rotating speed signal to obtain a control component;
processing working parameters of the wind generating set according to the control component to obtain synthesized working parameters, wherein the working parameters are quadrature axis current given values or torque given values;
controlling the wind generating set according to the synthesized working parameters;
wherein, handle generator rotational speed signal, obtain the control component, include:
adjusting the center frequency of the alternating current component acquisition submodule to be consistent with the vibration frequency of a vibration signal of the wind generating set, and extracting a signal in a preset frequency range in a generator rotating speed signal to acquire an alternating current component;
negating the alternating current component, wherein the negated alternating current component is used as the control component, and the working parameter is a given value of quadrature axis current;
processing the working parameters of the wind generating set according to the control component to obtain synthesized working parameters, wherein the synthesized working parameters comprise:
the inverted alternating current component and the quadrature axis current set value I of the wind generating setq_refSumming to directly obtain a synthetic quadrature axis current given value;
correspondingly, the controlling the wind generating set according to the synthesized working parameters comprises the following steps:
the quadrature axis current I obtained by subtracting the current detection from the set value of the synthesized quadrature axis currentqThen the given value U of the quadrature axis voltage is obtained through calculation of a current controllerq_refAccording to the quadrature axis voltage set value Uq_refAnd controlling the wind generating set so as to counteract the vibration of the impeller of the wind generating set in the rotating direction through the synthesized quadrature axis current set value.
2. The method of claim 1, wherein the obtaining a generator speed signal of a wind turbine generator system comprises:
acquiring a generator rotating speed signal of the wind generating set through an estimation algorithm;
alternatively, the first and second electrodes may be,
and measuring a generator rotating speed signal of the wind generating set through a rotating speed sensor.
3. A vibration damping device of a wind generating set is characterized by comprising:
the acquisition module is used for acquiring a generator rotating speed signal of the wind generating set; the generator rotating speed signal has an alternating current component with the same frequency as the vibration frequency of the wind generating set;
the control component processing module is used for processing the rotating speed signal of the generator to obtain a control component;
the working parameter processing module is used for processing the working parameters of the wind generating set according to the control components to obtain synthesized working parameters, wherein the working parameters are quadrature axis current given values or torque given values;
the control module is used for controlling the wind generating set according to the synthesized working parameters;
wherein the control component processing module comprises:
the alternating current component acquisition submodule is used for adjusting the center frequency of the alternating current component acquisition submodule to be consistent with the vibration frequency of the vibration signal of the wind generating set, and extracting a signal in a preset frequency range in the rotating speed signal of the generator to acquire an alternating current component;
the negation submodule is configured to negate the alternating current component, and use the negated alternating current component as the control component, where the working parameter processing module is specifically configured to:
summing the inverted AC component and the given value of the quadrature axis current of the wind generating set to directly obtain a synthesized given value of the quadrature axis current so as to subtract the quadrature axis current I obtained by current detection from the synthesized given value of the quadrature axis currentqThe given value U of the quadrature axis voltage is obtained by calculating the result through a current controllerq_refAccording to the quadrature axis voltage set value Uq_refAnd controlling the wind generating set, and further offsetting the vibration of the impeller of the wind generating set in the rotating direction through the synthesized quadrature axis current given value.
4. The apparatus of claim 3, wherein the obtaining module is specifically configured to: acquiring a generator rotating speed signal of the wind generating set through an estimation algorithm;
alternatively, the first and second electrodes may be,
the acquisition module is a rotation speed sensor and is used for measuring a generator rotation speed signal of the wind generating set.
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| JP4007268B2 (en) * | 2003-07-22 | 2007-11-14 | 株式会社日立製作所 | Wind power generator |
| DE102007019907B4 (en) * | 2007-04-27 | 2009-04-30 | Nordex Energy Gmbh | Device for the active damping of a drive train in a wind energy plant |
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| CN102130665B (en) * | 2010-12-30 | 2013-11-06 | 北京四方继保自动化股份有限公司 | Method for acquiring modal signals of shaft system of wind turbine generator system based on coordinate transformation |
| CN103296961B (en) * | 2012-02-22 | 2015-08-19 | 华锐风电科技(集团)股份有限公司 | Suppress control method and the control system of vibration of offshore wind turbine generator set |
| DK3076542T3 (en) * | 2015-04-02 | 2019-09-02 | Siemens Gamesa Renewable Energy As | NOISE CONTROL FOR A WINDMILL |
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