CN112855440A

CN112855440A - Vibration suppression device, deformation recovery method of non-return device and wind generating set

Info

Publication number: CN112855440A
Application number: CN202110362131.4A
Authority: CN
Inventors: 高杨; 赵涛; 赵树椿
Original assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Current assignee: Beijing Goldwind Science and Creation Windpower Equipment Co Ltd
Priority date: 2021-04-02
Filing date: 2021-04-02
Publication date: 2021-05-28
Anticipated expiration: 2041-04-02
Also published as: CN112855440B

Abstract

The application provides a vibration suppression device, a deformation recovery method of a non-return device and a wind generating set, wherein the vibration suppression device comprises: the mass block, the non-return device, the load measuring unit and the heating unit; the non-return device comprises a non-return inner ring structure, and the deformation of the non-return inner ring structure caused by the impact of the mass block can be recovered by heating; the load measuring unit is used for acquiring collision load parameters of the mass block on the inner check ring structure; the heating unit heats the non-return inner ring structure at the target collision position according to the heating control signal generated by the controller. The swing of the mass block is limited by arranging the check device, so that the safe operation of each component in the wind generating set can be ensured; through obtaining the collision load parameter of measuring mass piece and non return inner ring structure, realized the accurate heating to target collision position, until deformation resumes, the non return device after the recovery can recycle, has reduced wind generating set's fortune dimension cost, has promoted the economic nature of the whole life cycle of unit.

Description

Vibration suppression device, deformation recovery method of non-return device and wind generating set

Technical Field

The application relates to the technical field of wind power generation, in particular to a vibration suppression device, a deformation recovery method of a non-return device and a wind generating set.

Background

The wind generating set is a green energy source device for converting wind energy into electric energy. Wind turbine generators are distributed over most environmental areas on earth, and can be roughly divided into onshore wind turbine generators and offshore wind turbine generators, and the external environment of the wind turbine generators is extremely complex and accompanied by extreme uncertainty. The factors form various corresponding excitation sources in the operation of the wind power generator set, and the excitation sources comprise external excitation and self excitation, such as external uncertain wind load, wave load which is not regular and can be followed, self unbalance of the impeller, self rotation of the impeller and the like; the input of these deterministic and non-deterministic excitation sources causes various uncertainties in the operating characteristics of the unit and some abnormal behavior, the most intuitive response being the unit vibration.

Based on this, it is urgently needed to provide a device for suppressing vibration, which plays a role in protecting the unit safety and ensuring the unit to continuously generate power when responding to the complicated and changeable excitation outside and inside the wind generating set, and a tuned mass damper is produced at the right moment. The process of damping vibration by tuning the mass damper is essentially the process of vibration energy transfer and dissipation; specifically, when the wind generating set vibrates, the tuned mass damping device arranged in the wind generating set generates motion in a phase opposite to that of the wind generating set, so that the energy of the vibration of the wind generating set is transferred, and then the vibration energy is dissipated through the damping of the tuned mass damping device, so that the vibration is suppressed.

However, the principle of the tuned mass damper for suppressing the vibration is realized by the large-amplitude movement of the mass block of the tuned mass damper, and under the installation and limited conditions in the space of a cabin and a tower, the tuned mass damper is easy to interfere with other components in the large-amplitude movement process, so that the safe operation of the tuned mass damper is influenced.

Disclosure of Invention

The application aims at the defects of the prior art and provides a vibration suppression device, a deformation recovery method of a non-return device and a wind generating set, and the technical problem that the conventional vibration suppression device does not limit the swinging of a tuned mass damper is solved.

In a first aspect, an embodiment of the present application provides a vibration suppression device, including: the mass block, the check device, the load measuring unit, the control unit and the heating unit; the non-return device comprises a non-return inner ring structure for limiting the swing range of the mass block, and the deformation of the non-return inner ring structure caused by the impact of the mass block can be recovered by heating; the load measuring unit is arranged on one side, facing the mass block, of the inner check ring structure and is used for acquiring collision load parameters of the mass block on the inner check ring structure; the control unit is electrically connected with the load measuring unit and used for determining a target collision position and recovery energy required by deformation recovery according to the collision load parameters; generating a corresponding heating control signal according to the target collision position and the recovery energy; and the heating unit determines to heat the non-return inner ring structure at the target collision position according to the heating control signal until the deformation is recovered.

Optionally, the inner check ring structure comprises: the structure comprises a non-return interlayer inner wall structure, a non-return inner core structure and a non-return interlayer outer wall structure; the non-return inner core structure is accommodated between the non-return interlayer inner wall structure and the non-return interlayer outer wall structure, and at least one of the non-return inner core structure and the non-return interlayer inner wall structure comprises a shape memory alloy material; the load measuring unit comprises a plurality of load measuring sensors which are arranged at intervals along the circumferential direction of the inner wall structure of the check interlayer.

Optionally, the heating unit comprises an electrical heating component; the electric heating part is positioned inside the inner ring structure.

Optionally, the control unit is further configured to process the heating control signal by using a fuzzy control algorithm, and generate a first heating control signal; the electric heating part is electrically connected with the control unit and used for heating the non-return inner core structure at the target collision position according to the first heating control signal.

Optionally, the heating unit further comprises a hot air heating module; the hot air heating module comprises: the device comprises a hot air inlet channel, a plurality of vent holes, a hot air exhaust channel and a vent hole control valve for controlling the opening degree of the vent holes; the plurality of the vent holes are arranged along the circumferential direction of the non-return interlayer outer wall structure, one end of the hot air inlet channel is used for being communicated with a hot air source, the other end of the hot air inlet channel is communicated with one end of each vent hole, and the other end of each vent hole is communicated with the inner space of the non-return inner core structure; one end of the hot air exhaust channel is used for being communicated with the external atmospheric environment, and the other end of the hot air exhaust channel is communicated with the inner space of the non-return inner core structure.

Optionally, the control unit is further configured to process the heating control signal by using a fuzzy control algorithm, and generate a second heating control signal; the vent hole control valves are electrically connected with the control unit and used for adjusting the opening degree of the vent hole near the target collision position according to the second heating control signal, so that airflow with heat flows into the inner space of the non-return inner core structure to be heated.

Optionally, a plurality of the ventilation holes are concentrically arranged along the radial direction of the non-return interlayer outer wall structure.

Optionally, the non-return device further comprises a non-return outer ring structure; the non-return outer ring structure is fixedly connected with the non-return inner ring structure, and a closed annular flow passage is arranged between the non-return outer ring structure and the non-return inner ring structure; one end of the vent hole is communicated with the annular flow channel, at least one air inlet pipe opening is arranged on the outer side of the non-return outer ring structure along the radial direction, and the air inlet pipe opening is used for being communicated with the hot air inlet channel; at least one air outlet pipe opening is arranged on the radially outer side of the non-return inner ring structure and penetrates through the non-return outer ring structure to be communicated with the hot air exhaust channel.

Optionally, the diameter of the vent hole gradually increases from a position close to the air inlet pipe opening to a position close to the air outlet pipe opening.

Optionally, one end of the hot air inlet channel, which is far away from the non-return device, is used for communicating with an air outlet of the generator; and one end of the hot air exhaust channel, which is far away from the non-return device, is used for being communicated with an air outlet of the engine room.

Optionally, a gas valve and a temperature sensor are arranged on the hot air inlet channel; the gas valve is electrically connected with the control unit and is used for being opened when the second heating control signal is received; the temperature sensor is electrically connected with the control unit and used for detecting the temperature of the air flow flowing into the hot air exhaust channel so as to determine whether the control unit generates a first heating control signal.

In a second aspect, an embodiment of the present application further provides a wind turbine generator system, including: a tower and the vibration suppression device of the first aspect; the mass block of the vibration suppression device is suspended in the tower; the non-return device of the vibration suppression device is installed on the limiting platform of the tower barrel, and the non-return inner ring structure of the non-return device is sleeved outside the mass block.

Optionally, the wind generating set further comprises a nacelle and a generator mounted in the nacelle, wherein the nacelle is mounted on top of the tower; the air inlet of the engine room is communicated with the air inlet of the generator; one end of a hot air inlet channel of the vibration suppression device, which is far away from the non-return device, is communicated with an air outlet of the generator; and one end of a hot air exhaust channel of the vibration suppression device, which is far away from the non-return device, is communicated with an air outlet of the engine room.

In a third aspect, an embodiment of the present application further provides a method for recovering deformation of a check device, based on the vibration suppression device according to the first aspect, including:

acquiring collision load parameters of the mass block on the inner check ring structure;

determining a target collision position and recovery energy required for recovering deformation according to the collision load parameters;

generating a corresponding heating control signal according to the target collision position and the recovery energy;

and heating the non-return inner ring structure at the target collision position according to the heating control signal until the deformation is recovered.

Optionally, the collision load parameter includes:

and the distribution position and the collision force of each load measuring sensor contacted by the mass block when colliding with the check inner ring structure.

Optionally, the determining, according to the collision load parameter, a target collision position and recovery energy required for recovering deformation includes:

determining the azimuth angle of a collision area when the mass block collides with the inner check ring structure according to the collision load parameters;

determining the target collision position according to the collision zone azimuth;

and the number of the first and second groups,

determining the resultant collision force of the mass block when colliding with the inner check ring structure according to the collision load parameters;

and determining the recovery energy required by the deformation recovery of the target collision position according to the composite collision force.

Optionally, the generating a corresponding heating control signal according to the target collision position and the recovered energy includes:

and determining the heating temperature at least required for the non-return inner ring structure at the target collision position to recover deformation according to the recovery energy.

Optionally, after generating the corresponding heating control signal according to the target collision position and the recovery energy, the method includes:

the heating control signal is processed using a fuzzy control algorithm to generate a first heating control signal and/or a second heating control signal.

Optionally, the processing the heating control signal by using a fuzzy control algorithm to generate a first heating control signal and/or a second heating control signal includes:

generating the first heating control signal when the temperature of the air flow flowing into the hot air inlet channel is detected to be consistent with the ambient temperature;

when the temperature of the air flow flowing into the hot air inlet channel is detected to be higher than the ambient temperature and lower than the critical deformation recovery temperature of the non-return inner core structure, a first heating control signal and a second heating control signal are generated at the same time;

and generating the second heating control signal when the temperature of the air flow flowing into the hot air inlet channel is detected to be greater than the critical deformation recovery temperature of the non-return inner core structure.

Optionally, said heating the inner check ring structure at the target collision location according to the heating control signal comprises:

heating a non-return inner core structure at the target collision position according to the first heating control signal; and/or adjusting the opening degree of the vent hole near the target collision position according to the second heating control signal, so that the airflow with heat flows into the inner space of the check inner core structure for heating.

The beneficial technical effects brought by the technical scheme provided by the embodiment of the application at least comprise:

according to the vibration suppression device, the non-return device deformation recovery method and the wind generating set, the non-return device is arranged to limit the swing of the mass block, so that the mass block is limited in a certain range of the internal space of the engine room or the tower, interference between the mass block and other components in the process of large-amplitude movement is avoided, and the safe operation of each component in the wind generating set is ensured; through obtaining the collision load parameter of measuring quality piece and non return inner ring structure, can confirm target collision position and collision deformation volume for the heating unit heats the non return inner ring structure of target collision position department according to the required temperature of the deformation volume that resumes, until the deformation of non return inner ring structure resumes, the non return device need not often to be changed like this, and then has reduced wind generating set's fortune dimension cost, spare parts cost, has promoted wind generating set's whole life cycle's economic nature.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of an installation structure of a check device and a mass block of a vibration damping device according to an embodiment of the present disclosure;

fig. 2 is a schematic connection diagram of a deformation recovery system of a check device of a vibration suppression device according to an embodiment of the present disclosure;

FIG. 3 is a top view of a check device of a vibration suppression device according to an embodiment of the present disclosure;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3 according to an embodiment of the present application;

FIG. 5 is a schematic distribution diagram of load measuring sensors of a vibration damping device according to an embodiment of the present disclosure;

FIG. 6 is a force diagram illustrating a load cell sensor of a vibration damping device according to an embodiment of the present disclosure;

FIG. 7 is a schematic view of an internal structure of a hot air heating module of a vibration suppression device provided in an embodiment of the present application;

FIG. 8 is a schematic view illustrating an installation position of a vent and a vent control valve of a vibration damping device according to an embodiment of the present disclosure;

FIG. 9 is a schematic view of an internal structure of a hot air heating module of another vibration suppression device provided in an embodiment of the present application;

FIG. 10 is a flow chart illustrating a control logic of a controller of a vibration damping device according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a membership function of a vibration suppression device according to an embodiment of the present application when the heating control signal is processed by a fuzzy control algorithm;

fig. 12 is a schematic internal structural diagram of a wind turbine generator system according to an embodiment of the present disclosure; .

Fig. 13 is a schematic flow chart of a method for restoring deformation of a check device of a vibration suppression device according to an embodiment of the present application.

Wherein the reference numerals are as follows:

1-a non-return device; 110-inner non-return ring structure; 110 a-air outlet pipe orifice; 111-non-return sandwich inner wall structure; 112-non-return inner core structure; 113-non-return sandwich outer wall structure; 113 a-vent; 113 b-vent control valve; 120-non-return outer ring structure; 120 a-air inlet pipe orifice; 130-an annular flow channel;

2-a mass block;

3-a limiting platform;

4-a load measuring unit; 410-load measuring sensors;

5-a control unit;

6-a heating unit; 610-an electric heating component; 620-hot air heating module; 621-temperature sensor; 622-gas valve; 623-a first circulating fan; 624-second circulation fan; 625-a flow meter;

7-a hot air inlet channel; 8-a hot air exhaust channel;

9-the air outlet of the generator; 10-an air outlet of the cabin;

11-a tower drum; 12-a nacelle; 13-a generator; 14-a blade; 15-a hub; 16-a suspension device; 17-a swing rod; 18-a damping device; 19-tuning means; 20-an air inlet of the generator; 21-air inlet of the cabin.

Detailed Description

Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is to be understood that the term "and/or" as used herein is intended to include all or any and all combinations of one or more of the associated listed items.

The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.

Referring to fig. 1 and 2, an embodiment of the present application provides a vibration suppression device for suppressing vibration of a wind turbine generator system, the vibration suppression device mainly including: mass 2, non-return device 1, load measuring unit 4, control unit 5 and heating unit 6.

In particular, the mass 2 belongs to the main part of a tuned mass damper in a vibration damping device, and the mass 2 in fig. 1 is typically suspended in a nacelle or tower (not shown in fig. 1) by means of a pendulum rod. Because the space for installing the tuned mass damper inside the nacelle or inside the tower is limited, the mass block 2 is limited by the check device 1 in the embodiment.

The no-back device 1 in this embodiment may be mounted in a fixed position of the nacelle or the tower, for example: and a limiting platform 3. Referring to fig. 3 and 4, the check device 1 includes a check inner ring structure 110, the check inner ring structure 110 is a ring structure, and the check inner ring structure 110 is sleeved outside the mass block 2 to limit the swing range of the mass block 2. In addition, the deformation of the check inner ring structure 110 caused by the impact of the mass block 2 in the embodiment can be recovered by heating, so that the replacement frequency of the components of the check device 1 can be reduced.

Further, with continuing reference to fig. 1 and 2, in order to achieve heating of the deformation position, in the present embodiment, a load measuring unit 4 is disposed on a side of the inner check ring structure 110 facing the mass 2, and the load measuring unit 4 is used for acquiring a collision load parameter of the mass 2 on the inner check ring structure 110. The control unit 5 is electrically connected with the load measuring unit 4 and is mainly used for processing the collision load parameters acquired by the load measuring unit 4. The specific processing procedure of the control unit 5 includes: determining a target collision position and recovery energy required for recovering deformation according to the collision load parameters acquired by the load measuring unit 2; and generating a corresponding heating control signal according to the target collision position and the recovery energy. The heating unit 6 is electrically connected with the control unit 5, and determines to heat the non-return inner ring structure 110 at the target collision position according to the received heating control signal until the deformation is recovered.

It should be noted that the deformation recovery in the embodiment of the present application refers to a degree of recovery of the deformation when a condition of the deformation recovery is satisfied, and the degree of the deformation recovery may reach 100%, 95%, or 90% according to different deformation forms, positions, and materials, which is not specifically limited in this embodiment.

In the embodiment, the non-return device 1 is arranged to limit the swing of the mass block 2, so that the mass block 2 is limited in a certain range of the internal space of the engine room or the tower, the mass block of the tuned mass damper is prevented from interfering with other components in the process of large-amplitude movement, and the safe operation of each component in the wind generating set is ensured; through obtaining the collision load parameter of measuring mass block 2 and inner ring structure in non return 110, can confirm target collision position and collision deformation volume for heating unit 6 heats inner ring structure in non return 110 of target collision position department according to the temperature that the deformation volume needs that resumes, until the deformation of inner ring structure in non return 110 resumes, non return device 1 need not often to change like this, and then has reduced wind generating set's fortune dimension cost, spare parts cost, has promoted wind generating set's whole life cycle's economic nature.

In some embodiments, with continued reference to fig. 3 and 4, the inner check ring structure 110 specifically includes: a non-return sandwich inner wall structure 111, a non-return inner core structure 112 and a non-return sandwich outer wall structure 113. The non-return inner core structure 112 is accommodated between the non-return interlayer inner wall structure 111 and the non-return interlayer outer wall structure 113, and the non-return interlayer inner wall structure 111 and the non-return interlayer outer wall structure 113 can be connected through the non-return inner core structure 112 or can be connected through welding or an integrally formed mode.

Optionally, the non-return sandwich inner wall structure 111 is an elastomer, the material of which comprises a shape memory alloy material. In the working process of the vibration suppression device, the non-return interlayer inner wall structure 111 directly collides and interacts with the mass block 2. The non-return sandwich outer wall structure 113 is a rigid structure, and the non-return sandwich outer wall structure 113 has a large rigidity, so that a small deformation is allowed when the mass block 2 collides with the non-return inner ring structure 110. The material of the non-return inner core structure 112 embedded between the non-return sandwich inner wall structure 111 and the non-return sandwich outer wall structure 113 also includes shape memory alloy material, and is distributed in a multi-layer pleated, spatially zigzag surrounding, circuitous or wrapped manner (as shown in fig. 3) between the non-return sandwich inner wall structure 111 and the non-return sandwich outer wall structure 113. Because the shape memory alloy material can be heated to recover the deformation, the non-return device 1 after the deformation recovery can be repeatedly used.

From the perspective of energy transfer, when mass block 2 collides with non-return sandwich inner wall structure 111, non-return sandwich inner wall structure 111 will transmit the collision energy to non-return sandwich outer wall structure 113 on the path, because non-return inner core structure 112 takes place abundant deformation can make the abundant absorption of collision energy, directly with the less transmission of the energy of the collision source to non-return sandwich outer wall structure 113.

Alternatively, as shown in fig. 5, the load measuring unit 4 includes a plurality of load measuring sensors 410, the plurality of load measuring sensors 410 being arranged at intervals along the circumferential direction of the check sandwich inner wall structure 111. For example: along the inner side wall of the non-return sandwich inner wall structure 111, one load cell 410 is arranged at a central angle of 30 degrees, and the load cell 410 is numbered N1, N2, … … and N12 in this order.

Specifically, the load measuring sensors 410 are used for measuring the collision force of the check, the plurality of load measuring sensors 410 are uniformly distributed on the whole circumference of the check interlayer inner wall structure 111, as shown in fig. 6, when the mass block 2 collides with the check device 1 in a certain circumferential direction, at this time, the force under the precise circumferential angle can be measured by a plurality of (2-3) load measuring sensors 410 corresponding to the circumferential direction respectively, which is shown in fig. 6 that the mass block 2 contacts with two load measuring sensors 410(N1 and N12), the load collision forces corresponding to the two load measuring sensors 410 are respectively F1 and F2, and the magnitude of the resultant collision force F can be accurately obtained by vector synthesis of the forces.

Further, referring to fig. 10, based on the load impact force measured by the load cell 410 in the vicinity of the target impact location, the impact zone azimuth angle α (corresponding to the target impact location) can be determined.

In this embodiment, the structure of the non-return inner ring structure 110 colliding with the mass block 2 is made of a shape memory alloy material, so that the deformation generated after the collision of the mass block 2 can be recovered by heating; meanwhile, the load measuring sensor 410 is used for obtaining collision load parameters, so that the collision position and the energy required by deformation recovery can be determined, the collision position is heated in a targeted manner until the deformation is recovered, the non-return device 1 does not need to be replaced frequently, the operation and maintenance cost and the spare part cost of the wind generating set are reduced, and the deformation recovery efficiency of the non-return inner ring structure 110 is improved.

In some embodiments, with continued reference to fig. 2-4, the heating unit 6 includes an electric heating component 610, and the electric heating component 610 is powered on and generates heat when receiving the heating control signal. An electrical heating element 610 is located within the inner check ring structure 110. Optionally, heating element 610 is located between non-return sandwich inner wall structure 111 and non-return sandwich outer wall structure 113, and surrounds non-return inner core structure 112 (not shown). The electric heating part 610 in this embodiment may be an electric tracing band.

In this embodiment, the deformation position of the inner check ring structure 110 can be heated by the electric heating component 610 surrounding the inner check ring structure 112, and the electric heating component 610 has high heating efficiency and is not interfered by the external environment.

In some embodiments, with continued reference to fig. 2, the heating unit 6 includes a hot air heating module 620 in addition to the electrical heating component 610. As shown in fig. 7, the hot air heating module 620 specifically includes: a hot air intake passage 7, a plurality of vent holes 113a, a hot air exhaust passage 8, and a vent hole control valve 113b for controlling the opening degree of the vent hole 113 a; the relative positions of the vent hole control valve 113b and the vent hole 113a can be referred to the structure shown in fig. 8. As shown in fig. 3, a plurality of vent holes 113a are provided along the circumferential direction of the non-return sandwich outer wall structure 113, and the vent holes 113a penetrate the non-return sandwich outer wall structure 113.

Specifically, in fig. 7, one end of the hot air intake passage 7 is used to communicate with a hot air source, the other end of the hot air intake passage 7 communicates with one end of the vent hole 113a, and the other end of the vent hole 113a communicates with the inner space of the check inner core structure 112. One end of the hot air exhaust passage 8 is used for communicating with the external atmosphere, and the other end of the hot air exhaust passage 8 is communicated with the inner space of the non-return inner core structure 112. The whole hot air heating module 620 forms a hot air circulation pipeline consisting of the hot air inlet channel 7, the vent hole 113a and the hot air exhaust channel 8, and when the target deformation position needs to be heated, the vent hole control valve 113b corresponding to the vent hole 113a near the target collision position is controlled, so that the opening degree of the vent hole 113a is adjusted, and hot air with preset flow can enter the non-return inner core structure 112.

Optionally, a plurality of ventilation holes 113a are provided along a circumferential layer circumferential array of the non-return sandwich outer wall structure 113. The central angle between the adjacent vent holes 113a may be set according to actual needs, and is not particularly limited in this embodiment.

Alternatively, as shown in fig. 9, the hot air source in this embodiment is a temperature-dependent air flow discharged by the generator, so that the end of the hot air inlet channel 7 away from the non-return device 1 can be communicated with the air outlet 9 of the generator. And the air outlet 10 of cabin communicates with external atmospheric environment, and the one end that hot-blast exhaust passage 8 kept away from non return device 1 can communicate with the air outlet 10 of cabin like this to realize the intercommunication with external atmospheric environment. Note that 120a in fig. 9 is an air inlet nozzle of the linear device, and 110a in fig. 9 is an air outlet nozzle of the linear device.

In this embodiment, the deformation position of the non-return inner ring structure 110 is heated by combining the hot air heating module 620 with the electric heating component 610, so that the shape memory alloy of the non-return device 1 can be restored to the original shape after non-return deformation occurs, thereby realizing the recycling of the non-return device 1, and further reducing the cost of maintenance and replacement of the non-return device 1; and the heating unit 6 utilizes the recovery and reutilization of high-quality heat energy discharged by the generator of the unit, so that the utilization rate of energy is improved, and electric energy is saved.

Optionally, when the hot air heating module 620 can meet the requirement of recovery energy required for deformation recovery, the heating unit 6 in this embodiment may also include only the hot air heating module 620, that is, the electric heating component 610 may not be used.

In some embodiments, with continued reference to fig. 9, the hot air intake passage 7 is provided with a gas valve 622 and a temperature sensor 621. Wherein, the gas valve 622 is electrically connected to the control unit and is configured to open when receiving the second heating control signal.

The temperature sensor 621 is electrically connected to the control unit for detecting the temperature of the air flow flowing into the hot air exhaust passage 8 to determine whether the control unit generates the first heating control signal. That is, the temperature sensor 621 detects whether the temperature of the air flow reaches the critical temperature for deformation recovery of the memory alloy material, and determines whether to start the electric heating part to heat the non-return inner core structure.

Optionally, with continued reference to fig. 9, in order to increase the flow rate of the gas, a first circulation fan 623 is further disposed on the hot air inlet channel 7, and a second circulation fan 624 is further disposed on the hot air outlet channel 8, and the first circulation fan 623 and the second circulation fan 624 can be used to increase the gas circulation rate, which is beneficial to deformation recovery.

In addition, with continued reference to fig. 9, a gas flow meter 625 is provided in the hot air intake passage 7 for monitoring the flow rate of the gas flowing into the check device 1.

In this embodiment, by providing the gas valve 622 and the temperature sensor 621 on the hot air intake passage 7, the temperature of the exhaust gas flow from the generator can be monitored in real time, so that the linkage control of the hot air heating module 620 and the electric heating unit 6 is realized, the heating efficiency is favorably improved, and the resources are saved.

In some embodiments, referring to fig. 2, 9 and 10, the control unit 5 is further configured to process the heating control signal using a fuzzy control algorithm and generate a first heating control signal. The electric heating part 610 is electrically connected to the control unit 5, and is used for heating the check inner core structure 112 at the target collision position according to the first heating control signal.

Optionally, with continued reference to fig. 2, 9 and 10, the control unit 5 is further configured to process the heating control signal using a fuzzy control algorithm and generate a second heating control signal. The vent hole control valves 113b are electrically connected to the control unit 5, and are configured to adjust the opening degree of the vent hole 113a near the target collision position (the gas valve 622 may be opened first) according to the second heating control signal, so that the airflow with heat flows into the inner space of the check core structure 112 to be heated.

When the target collision position is located between the two adjacent vent holes 113a, the hot air heating may be performed by adjusting the opening degrees of the two vent holes 113a in the vicinity of the target collision position at the same time. When the target collision position corresponds to the position of one of the vent holes 113a, the hot air may be heated by adjusting only the opening degree of the vent hole 113 a. In addition, the number and positions of the openings of the vent holes 113a near the target collision position may be set according to the specific collision situation, ensuring that the deformation recovery rate and energy saving are balanced as much as possible.

In this embodiment, the heating control signal is processed by a fuzzy control algorithm, and the membership function shown in fig. 11 is executed, so that the heating recovery of the non-return inner core structure 112 is realized. When the temperature of the air flow into the non-return device 1 is comparable to the ambient temperature (indicated schematically as T1 in fig. 11), the heating of the non-return core structure 112 is entirely dependent on electrical heating, which is achieved by heating (e.g. electrical tracing band) by means of an electrical heating element 610 wound onto the non-return core structure 112. When the temperature of the air flow is greater than the ambient temperature T1 and less than the critical recovery temperature T2 of the shape memory alloy material of the non-return inner core structure 112, the non-return inner core structure 112 is heated by hot air heating and electric heating at this time, and the specific proportion is executed according to the membership function shown in fig. 11; at this time, according to the impact region azimuth angle α of the non-return device 1, the vent hole 113a corresponding to the impact region azimuth angle is opened in a targeted manner, so that efficient heating is achieved, and the recovery speed is increased; when the temperature of the air stream is greater than the critical recovery temperature T2 of the shape memory alloy material of check inner core structure 112, heating is provided entirely by hot air heating module 620.

In the embodiment, based on temperature measurement and collision load measurement, combined with machine self-learning, the heating control signal is processed by adopting a fuzzy control algorithm, and a specific heating mode can be determined according to the relative sizes of the hot air temperature and the recovery temperature of the shape memory alloy material, so that the optimal linkage of the non-return device 1 and the external working condition of the wind generating set is realized, and the function of the non-return device 1 is exerted to the maximum extent.

Optionally, as shown in fig. 4 and 8, the plurality of vent holes 113a are concentrically arranged along the radial direction of the non-return sandwich outer wall structure 113, which is equivalent to that the non-return sandwich outer wall structure 113 has the same angular position that can simultaneously correspond to the plurality of vent holes 113a, and the vent holes 113a at the same angular position can uniformly realize the control of the opening degree, so as to improve the speed of deformation recovery.

Optionally, with continued reference to fig. 3 and 4, the no-back device 1 further includes an no-back outer ring structure 120 in addition to the no-back inner ring structure 110, and the no-back outer ring structure 120 is sleeved outside the no-back inner ring structure 110 and is concentrically arranged. The check outer ring structure 120 is fixedly connected with the check inner ring structure 110, and a closed annular flow passage 130 is formed.

Further, one end of the vent hole 113a is communicated with the annular flow channel 130, at least one air inlet pipe opening 120a is arranged on the outer radial side of the non-return outer ring structure 120, and the air inlet pipe opening 120a is communicated with the hot air inlet channel 7. At least one air outlet pipe opening 110a is arranged on the inner check ring structure 110 along the radial outer side, and the air outlet pipe opening 110a penetrates through the outer check ring structure 120 and is communicated with the hot air exhaust channel 8.

The specific air flow circulation process is as follows: the air flow with temperature flowing in from the hot air inlet passage 7 can flow into the annular flow passage 130 from the air inlet pipe orifice 120a, and since one end of the vent hole 113a is communicated with the annular flow passage 130 and the other end of the vent hole 113a is communicated with the inner space of the check inner core structure 112, the air flow in the inner space of the check inner core structure 112 is discharged from the air outlet pipe orifice 110a after the shape memory alloy material is heated.

It should be noted that the outer wall of the outlet nozzle 110a is connected to the check outer ring structure 120 in a sealing manner (e.g., welded), so as to prevent gas leakage in the annular flow passage 130.

Exemplarily, as shown in fig. 3, fig. 3 illustrates two air inlet nozzles 120a and two air outlet nozzles 110a, wherein the two air inlet nozzles 120a are relatively arranged on the non-return outer ring structure 120 (the central lines coincide), the two air outlet nozzles 110a are relatively arranged on the non-return outer ring structure 120 (the central lines coincide), and the central angle between any one air outlet and the adjacent air inlet is different by 90 degrees, so that the flow rate of the gas in the non-return device 1 can be more uniform.

Optionally, with reference to fig. 3, the diameter of the vent hole 113a gradually increases from a position close to the inlet pipe opening 120a to a position close to the outlet pipe opening 110a (or away from the inlet pipe opening 120a), so as to further increase the gas flow rate of the outlet pipe opening 110a, which is beneficial to improving the uniformity of the gas flow rate at different positions in different directions.

Based on the same inventive concept, as shown in fig. 12, an embodiment of the present application provides a wind turbine generator system, including: hub 15, blades 14, generator 13, nacelle 12, tower 11, and vibration damping devices (not shown). Wherein the impeller (including the hub 15 and the blades 14) converts the wind energy into the electric energy through the generator 13 by absorbing the external wind energy.

However, under some conditions, such as external extreme wind and working conditions of sudden stop, resonance and the like caused by special wind speed, the unit can greatly shake, so that instability of the wind generating set can be induced, and the safety of the unit can be challenged; at the moment, the unit needs to be provided with a vibration suppression device, so that the safety problem of unit vibration caused by external wind load uncertainty can be effectively applied.

Specifically, the vibration suppressing device, which is a subsystem of the wind turbine generator system, may be installed inside the tower 11 or the nacelle 12. The vibration damping device comprises structures such as a suspension device 16, a swing rod 17, a frequency modulation device, a damping device 18, a tuning device 19 and the like in addition to the check device 1 and the mass block 2 in the previous embodiment of the application. In order to damp different vibration modes of the wind generating set, the arrangement positions of the vibration damping system of the whole machine are different by combining the internal space of the set, and the length of the corresponding swing rod 17, the mass block 2, the damping device 18 and the like can have various different realization modes.

In the example, the mass 2 of the vibration damping device is suspended in the tower 11; the non-return device 1 of the vibration suppression device is arranged on the limiting platform 3 of the tower tube 11, and the non-return inner ring structure 110 of the non-return device 1 is sleeved outside the mass block 2.

Further, the vibration suppressing device in the present embodiment is mounted inside the tower 11, and the nacelle 12 is mounted on top of the tower 11. An air inlet 21 of the engine room is communicated with an air inlet 20 of the generator; one end of a hot air inlet channel 7 of the vibration suppression device, which is far away from the non-return device 1, is communicated with an air outlet 9 of the generator; one end of a hot air exhaust channel 8 of the vibration suppression device, which is far away from the non-return device 1, is communicated with an air outlet 10 of the engine room, so that an air inlet 21 of the engine room is communicated with an air inlet on the non-return device 1, and an air outlet 10 of the engine room is communicated with an air outlet on the non-return device 1, thereby forming a complete air circulation path.

The wind generating set provided by the embodiment of the application comprises the vibration suppression device in the embodiment of the application, the vibration suppression device limits the swinging of the mass block 2 by arranging the check device 1, so that the mass block 2 is limited in a certain range of the internal space of the engine room 12 or the tower, the interference between the tuned mass damper and other parts in the process of large-amplitude movement is avoided, and the safe operation of each part in the wind generating set is ensured; through obtaining the collision load parameter of measuring mass block 2 and inner ring structure in non return 110, can confirm target collision position and collision deformation volume for heating unit 6 heats inner ring structure in non return 110 of target collision position department according to the temperature that the deformation volume needs that resumes, until the deformation of inner ring structure in non return 110 resumes, non return device 1 need not often to change like this, and then has reduced wind generating set's fortune dimension cost, spare parts cost, has promoted wind generating set's whole life cycle's economic nature.

Based on the same inventive concept, as shown in fig. 13, an embodiment of the present application further provides a method for recovering deformation of a check device, where based on the vibration suppression device in the foregoing embodiment of the present application, the specific structure of the vibration suppression device may refer to the content of the foregoing embodiment of the present application, and the method for recovering deformation of a check device includes the following steps:

and S100, acquiring collision load parameters of the mass block to the inner check ring structure.

Optionally, the main structure of check device 1 is designed as a multi-region sandwich structure, and check inner ring structure 110 is located at a position close to the inner side of check device 1 for limiting the swing range of mass 2. The non-return inner ring structure 110 is in direct contact collision with the mass 2. Because the deformation of the check inner ring structure 110 caused by the impact of the mass block 2 can be recovered by heating, the replacement frequency of the parts of the check device 1 can be reduced.

Specifically, in order to realize heating of the deformation position, in the present embodiment, the load measuring unit 4 is disposed on the side of the inner check ring structure 110 facing the mass 2, the load measuring unit 4 includes a plurality of load measuring sensors 410, and the load measuring sensors 410 can be used to acquire the collision load parameter of the mass 2 to the inner check ring structure 110.

Alternatively, the collision load parameters specifically include the distribution positions and collision forces of the load measuring sensors 410 that the mass 2 comes into contact with when colliding with the inner check ring structure 110.

And S200, determining the collision position of the target and the recovery energy required for recovering the deformation according to the collision load parameters.

Alternatively, as shown in fig. 10, when the mass 2 collides with the inner check ring structure 110 of the check device 1 at a certain circumferential orientation, the load cell 410 (for example, the load cell N1, the load cell N2, and the load cell N3, where N1, N2, and N3 represent the numbers of the load cell 410) near the corresponding collision position may collect collision force data, and the control unit 5 may obtain the resultant collision force F by force synthesis. Meanwhile, the control unit 5 may determine a target collision position of the mass block 2 with the check device 1, that is, a collision region azimuth angle α at the time of collision, based on a combination of the measurement and force of the plurality of load measuring sensors 410, and may obtain a deformation amount of the check inner core structure 112 according to the combined collision force F, and may calculate a recovery energy Q value in synchronization.

And S300, generating a corresponding heating control signal according to the target collision position and the recovery energy.

Optionally, with reference to fig. 10, in order to achieve deformation recovery of the non-return inner core structure 112 in the collision region more purposefully, more efficiently and more energy-saving, the control unit 5 generates a corresponding heating control signal according to the determined azimuth angle α of the collision region, that is, the target collision position can be heated more purposefully by the heating control signal corresponding to the azimuth angle α of the collision region.

S400, heating the check inner ring structure 110 at the target collision position according to the heating control signal until the deformation is recovered.

Alternatively, after receiving the heating control signal, the heating unit 6 may heat the deformed inner check ring structure 110 by using different heating methods (e.g., electrical heating and/or hot air heating), so as to recover the deformation.

The deformation recovery method for the non-return device 1 provided by the embodiment comprises the steps of obtaining collision load parameters of the measuring mass block 2 and the non-return inner ring structure 110, determining a target collision position and a collision deformation amount, heating the non-return inner ring structure 110 at the target collision position by the heating unit 6 according to the temperature required by the deformation amount, and recovering the deformation of the non-return inner ring structure 110 until the deformation of the non-return inner ring structure 110 is recovered, so that the non-return device 1 does not need to be frequently replaced, the operation and maintenance cost of the wind generating set is reduced, the cost of spare parts is reduced, the economy of the whole life cycle of the wind generating set is improved, meanwhile, the method can accurately heat according to the target collision position, and.

In some embodiments, determining the target collision position and the recovery energy required to recover the deformation according to the collision load parameter in step S200 further includes:

determining the azimuth angle of a collision area when the mass block 2 collides with the inner check ring structure 110 according to the collision load parameters;

and determining the collision position of the target according to the azimuth of the collision area.

And determining the resultant collision force when the mass block 2 collides with the inner check ring structure 110 according to the collision load parameters;

Specifically, according to the composition of each collision force in the collision load parameters, the collision region azimuth angle α of the mass block 2 and the check device 1 can be calculated, and the corresponding target collision position can be determined after the collision region azimuth angle α is determined. Meanwhile, according to the composition of each collision force in the collision load parameters, a composite collision force F can be obtained through calculation; the deformation of the non-return core structure 112 can be obtained from the resultant impact force F, and the recovery energy Q value can be synchronously calculated from the deformation.

Optionally, the design wind parameters (i.e. wind parameters) of the wind generating set are greatly different from the actual wind parameters of the site, and the external wind conditions of the fans at different machine positions of the same wind farm are also different; the complex scene with obvious differentiation causes that the vibration characteristics of fans at different machine sites of the same wind field are different, and the motion characteristics of corresponding whole machine vibration suppression devices are different, so that the collision position and the acting force of the non-return device 1 are different, and therefore, the vibration suppression device is required to have a self-learning function based on the background.

In particular, since the number of wind turbine generators in the same wind farm is large, if each wind farm is equipped with a load measuring sensor and each time processing calculations are required, this will result in increased costs. Therefore, according to different working environments of the wind generating set, machine self-learning can be utilized to model relevant parameters.

As shown in fig. 10, through the machine self-learning process, a corresponding relationship between the wind power parameters (including wind direction and wind speed) and the impact zone azimuth angle α and the resultant impact force F is established, thereby establishing a corresponding machine learning model. During model training, corresponding load measurement sensors can be arranged in a preset wind turbine generator, namely the relative position (pre-numbering, N1, N1, … N12 and the like) of each sensor can be determined, wind parameters of the external environment in a certain time period are measured, load collision parameters in a corresponding time period are measured at the same time, and due to the fact that the collision load parameters have a certain corresponding relation with a collision region azimuth angle alpha and a synthetic collision force F, the collision region azimuth angle alpha and the synthetic collision force F under the wind parameter condition can be obtained, and through training of multiple groups of wind parameters, the model relation among the wind parameters (including wind direction and wind speed) and the collision region azimuth angle alpha and the synthetic collision force F can be established.

Further, for a wind generating set without a load measuring sensor, according to the wind parameters measured in real time, the corresponding impact area azimuth angle alpha and the resultant impact force F can be obtained through the machine learning model, so that the target impact position and the corresponding recovery energy can be determined.

Alternatively, in view of model training, if the number of sensors arranged inside the inner check ring structure is limited, the collision zone azimuth may be determined by calculating the probability that the load cell is collided based on wind parameter conditions.

For example: under a certain wind parameter condition, the number of times that the load measuring sensors N1 and N2 are collided is the highest and is far greater than that of the collision times of other load measuring sensors, the collision between the mass block and the load collision sensors N1 and N2 under the wind direction and the wind speed can be considered to be a contingency factor although the other load measuring sensors may be collided, and the accidental factor is ignored in actual training, so that the accuracy of the model is improved.

In some embodiments, the generating a corresponding heating control signal according to the target collision position and the recovery energy in step S300 further includes:

and determining the heating temperature at least required for the inner check ring structure 110 at the target collision position to recover the deformation according to the recovery energy.

Optionally, after the recovery energy is determined, according to a calculation formula of the recovery energy: q ═ cm Δ t, where c denotes the specific heat capacity, m denotes the mass of the object, Δ t denotes the varying temperature of the object, i.e. t-t₀(t₀The initial temperature, t is the temperature to be heated), so that the heating control signal includes parameters such as the heating position, the heating temperature, and the heating time required for the deformation recovery of the check device 1.

Optionally, after step S300 and before step S400, the following steps are further included:

Optionally, with continued reference to fig. 10, the control unit 5 is further configured to process the heating control signal using a fuzzy control algorithm and generate a first heating control signal. The electric heating part 610 is electrically connected to the control unit 5, and is used for heating the check inner core structure 112 at the target collision position according to the first heating control signal. Furthermore, the control unit 5 is also configured to process the heating control signal using a fuzzy control algorithm and generate a second heating control signal. The vent hole control valves 113b are each electrically connected to the control unit 5, and are configured to adjust the opening degree of the vent hole 113a near the target collision position according to the second heating control signal, so that the airflow with heat flows into the inner space of the check core structure 112 to be heated.

Optionally, processing the heating control signal by using a fuzzy control algorithm to generate a first heating control signal and/or a second heating control signal, specifically including:

when it is detected that the temperature of the air flow flowing into the hot air intake passage 7 coincides with the ambient temperature, a first heating control signal is generated.

When the temperature of the air flow flowing into the hot air inlet channel 7 is detected to be higher than the ambient temperature and lower than the critical deformation recovery temperature of the non-return inner core structure 112, a first heating control signal and a second heating control signal are generated.

And when the temperature of the air flow flowing into the hot air inlet channel 7 is detected to be higher than the critical deformation recovery temperature of the non-return inner core structure 112, generating the second heating control signal.

Optionally, in this embodiment, the heating control signal is processed by a fuzzy control algorithm, and executed with reference to the membership function shown in fig. 11, so as to implement heating recovery on the non-return inner core structure 112.

When the temperature of the air stream is comparable to ambient temperature T1, the heating of check core structure 112 is entirely dependent on electrical heating, which is accomplished by heating (e.g., electrical trace tape) tape with electrical heating element 610 wrapped around check core structure 112.

When the temperature of the air flow is greater than the ambient temperature T1 and less than the critical recovery temperature T2 of the shape memory alloy material of the non-return inner core structure 112, the non-return inner core structure 112 is heated by hot air heating and electric heating at the moment, and the specific proportion is executed according to the membership function of fig. 11; at this time, according to the impact region azimuth of the non-return device 1, the vent hole 113a corresponding to the impact region azimuth is opened in a targeted manner, so that the efficient heating is performed, and the recovery speed is increased.

When the temperature of the air stream is greater than the critical recovery temperature T2 of the shape memory alloy material of check inner core structure 112, heating is provided entirely by hot air heating module 620.

Optionally, in step S400, heating the inner check ring structure 110 at the target collision position according to the heating control signal includes:

heating the non-return inner core structure 112 at the target collision position according to the first heating control signal;

and/or, according to the second heating control signal, the opening degree of the vent hole 113a near the target collision position is adjusted so that the airflow with heat flows into the inner space of the check core structure 112 to be heated.

Alternatively, as shown in fig. 2 and 10 in combination, the electric heating part 610 electrically heats the non-return inner core structure 112 at the target collision position according to the received first heating control signal. The hot air heating module 620 performs hot air heating on the non-return inner core structure 112 in the non-return device 1 according to the received second heating control signal, specifically, by adjusting the opening degree of the vent hole 113a near the target collision position, the air flow with heat flows into the inner space of the non-return inner core structure 112 to be heated until the deformation is recovered.

The above embodiments of the present application have at least the following beneficial effects:

1. the mass block is limited to swing by arranging the check device, so that the mass block is limited in a certain range in the internal space of the engine room or the tower, interference between the tuned mass damper and other components in the process of large-amplitude movement is avoided, and safe operation of each component in the wind generating set is ensured.

2. Through obtaining the collision load parameter of measuring quality piece and non return inner ring structure, can confirm target collision position and collision deformation volume for the heating unit heats the non return inner ring structure of target collision position department according to the required temperature of the deformation volume that resumes, until the deformation of non return inner ring structure resumes, the non return device need not often to be changed like this, and then has reduced wind generating set's fortune dimension cost, spare parts cost, has promoted wind generating set's whole life cycle's economic nature.

3. The structure of the non-return inner ring structure colliding with the mass block is made of shape memory alloy materials, so that deformation generated after the mass block collides can be recovered through heating; meanwhile, the collision load parameters are obtained by utilizing the load measuring sensor, the collision position can be determined, and the energy required by deformation recovery can be determined, so that the collision position is pertinently heated until the deformation is recovered, the non-return device does not need to be frequently replaced, the operation and maintenance cost and the spare part cost of the wind generating set are reduced, and the efficiency of deformation recovery of the inner ring structure of the non-return device is improved.

4. The deformation position of the non-return inner ring structure is heated by combining the hot air heating module and the electric heating component, so that the shape memory alloy of the non-return device can be restored to the original shape after non-return deformation, the recycling of the non-return device is realized, and the maintenance and replacement cost of the non-return device is reduced; and the heating unit utilizes the recovery and reutilization of the high-quality heat energy discharged by the generator of the unit, thereby improving the utilization rate of energy and saving electric energy.

5. Based on temperature measurement and collision load measurement, combined with machine self-learning, the heating control signals are processed by adopting a fuzzy control algorithm, and a specific heating mode can be determined according to the relative sizes of the hot air temperature and the recovery temperature of the shape memory alloy material, so that the optimal linkage of the non-return device and the external working condition of the wind generating set is realized, and the function of the non-return device is exerted to the maximum extent.

6. A plurality of ventilation holes are arranged along the radial concentric type of non return intermediate layer outer wall structure, and the same angular position department can correspond a plurality of ventilation holes simultaneously on being equivalent to non return intermediate layer outer wall structure, and the control of the ventilation hole of same angular position can unify realization aperture to promote the speed that deformation resumes.

7. The diameter in ventilation hole is from being close to the orificial position of air inlet to being close to the orificial position of air outlet (or keeping away from the orificial position of air inlet) crescent, can further promote the orificial gas flow rate of air outlet like this, is favorable to promoting the homogeneity of the not equidirectional position gas flow rate.

8. Through set up gas valve and temperature sensor on hot-blast inlet channel, can real-time supervision follow the temperature of the exhaust stream of generator to realize hot-blast heating module and electric heating unit's coordinated control, be favorable to promoting heating efficiency, also can resources are saved simultaneously.

Those of skill in the art will appreciate that the various operations, methods, steps in the processes, acts, or solutions discussed in this application can be interchanged, modified, combined, or eliminated. Further, other steps, measures, or schemes in various operations, methods, or flows that have been discussed in this application can be alternated, altered, rearranged, broken down, combined, or deleted. Further, steps, measures, schemes in the prior art having various operations, methods, procedures disclosed in the present application may also be alternated, modified, rearranged, decomposed, combined, or deleted.

In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.

The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.

Claims

1. A vibration damping device, comprising:

a mass block;

the non-return device comprises a non-return inner ring structure for limiting the swing range of the mass block, and the deformation of the non-return inner ring structure caused by the impact of the mass block can be recovered by heating;

the load measuring unit is arranged on one side, facing the mass block, of the inner check ring structure and is used for acquiring collision load parameters of the mass block to the inner check ring structure;

the control unit is electrically connected with the load measuring unit and used for determining a target collision position and recovery energy required by deformation recovery according to the collision load parameters; generating a corresponding heating control signal according to the target collision position and the recovery energy;

and the heating unit is electrically connected with the control unit and used for determining to heat the non-return inner ring structure at the target collision position according to the heating control signal until the deformation is recovered.

2. The vibration suppression device according to claim 1, wherein said inner check ring structure comprises: the structure comprises a non-return interlayer inner wall structure, a non-return inner core structure and a non-return interlayer outer wall structure; the non-return inner core structure is accommodated between the non-return interlayer inner wall structure and the non-return interlayer outer wall structure, and at least one of the non-return inner core structure and the non-return interlayer inner wall structure comprises a shape memory alloy material; the load measuring unit comprises a plurality of load measuring sensors which are arranged at intervals along the circumferential direction of the inner wall structure of the check interlayer.

3. The vibration suppressing device according to claim 1, wherein the heating unit includes an electric heating part; the electrical heating element is disposed inside the inner check ring structure.

4. The vibration suppression device according to claim 3, wherein the control unit is further configured to process the heating control signal using a fuzzy control algorithm and generate a first heating control signal; the electric heating part is electrically connected with the control unit and used for heating the non-return inner core structure at the target collision position according to the first heating control signal.

5. The vibration damping device according to claim 2, wherein the heating unit further comprises a hot air heating module; the hot air heating module comprises: the device comprises a hot air inlet channel, a plurality of vent holes, a hot air exhaust channel and a vent hole control valve for controlling the opening degree of the vent holes;

the plurality of the vent holes are arranged along the circumferential direction of the non-return interlayer outer wall structure, one end of the hot air inlet channel is used for being communicated with a hot air source, the other end of the hot air inlet channel is communicated with one end of each vent hole, and the other end of each vent hole is communicated with the inner space of the non-return inner core structure;

one end of the hot air exhaust channel is used for being communicated with the external atmospheric environment, and the other end of the hot air exhaust channel is communicated with the inner space of the non-return inner core structure.

6. The vibration suppression device according to claim 5, wherein the control unit is further configured to process the heating control signal using a fuzzy control algorithm and generate a second heating control signal;

the vent hole control valves are electrically connected with the control unit and used for adjusting the opening degree of the vent hole near the target collision position according to the second heating control signal, so that airflow with heat flows into the inner space of the non-return inner core structure to be heated.

7. The vibration suppression device according to claim 5, wherein a plurality of said ventilation holes are concentrically arranged in a radial direction of said check sandwich outer wall structure.

8. The vibration suppression device according to claim 5 wherein said check device further comprises a check outer ring structure;

the non-return outer ring structure is fixedly connected with the non-return inner ring structure, and a closed annular flow passage is arranged between the non-return outer ring structure and the non-return inner ring structure;

one end of the vent hole is communicated with the annular flow channel, at least one air inlet pipe opening is arranged on the outer side of the non-return outer ring structure along the radial direction, and the air inlet pipe opening is used for being communicated with the hot air inlet channel;

at least one air outlet pipe opening is arranged on the radially outer side of the non-return inner ring structure and penetrates through the non-return outer ring structure to be communicated with the hot air exhaust channel.

9. The vibration suppressing device as defined in claim 8, wherein the diameter of said ventilation hole is gradually increased from a position near said air inlet nozzle to a position near said air outlet nozzle.

10. The vibration suppression device according to claim 5, wherein one end of the hot air inlet channel away from the check device is used for communicating with an air outlet of a generator; and one end of the hot air exhaust channel, which is far away from the non-return device, is used for being communicated with an air outlet of the engine room.

11. The vibration suppression device according to claim 6, wherein a gas valve and a temperature sensor are arranged on the hot air inlet channel;

the gas valve is electrically connected with the control unit and is used for being opened when the second heating control signal is received;

the temperature sensor is electrically connected with the control unit and used for detecting the temperature of the air flow flowing into the hot air exhaust channel so as to determine whether the control unit generates a first heating control signal.

12. A wind turbine generator set, comprising: a tower and a vibration damping device as claimed in any one of claims 1 to 11;

the mass block of the vibration suppression device is suspended in the tower; the non-return device of the vibration suppression device is installed on the limiting platform of the tower barrel, and the non-return inner ring structure of the non-return device is sleeved outside the mass block.

13. The wind generating set of claim 12, further comprising a nacelle mounted atop the tower and a generator mounted within the nacelle; the air inlet of the engine room is communicated with the air inlet of the generator;

one end of a hot air inlet channel of the vibration suppression device, which is far away from the non-return device, is communicated with an air outlet of the generator; and one end of a hot air exhaust channel of the vibration suppression device, which is far away from the non-return device, is communicated with an air outlet of the engine room.

14. A deformation recovery method of a check device based on the vibration suppressing device according to any one of claims 1 to 11, comprising:

15. The check device deformation recovery method according to claim 14, wherein the collision load parameters include:

16. The method for recovering deformation of a check device according to claim 14 or 15, wherein the determining of the collision position of the target and the recovery energy required for recovering deformation based on the collision load parameter includes:

and the number of the first and second groups,

17. The method for restoring deformation of a check device according to claim 16, wherein said generating a corresponding heating control signal based on said target collision location and said restoration energy comprises:

18. The check device deformation recovery method according to claim 14, comprising, after generating a corresponding heating control signal according to the target collision position and the recovery energy, and before heating the check inner ring structure at the target collision position according to the heating control signal:

19. The method for restoring deformation of a check device according to claim 18, wherein the processing the heating control signal using a fuzzy control algorithm to generate a first heating control signal and/or a second heating control signal comprises:

when the temperature of the air flow flowing into the hot air inlet channel is detected to be higher than the ambient temperature and lower than the critical deformation recovery temperature of the non-return inner core structure, generating a first heating control signal and a second heating control signal;

20. The method for recovering deformation of a check device according to claim 18, wherein said heating the inner check ring structure at the target collision position according to the heating control signal includes:

heating a non-return inner core structure at the target collision position according to the first heating control signal;

and/or adjusting the opening degree of the vent hole near the target collision position according to the second heating control signal, so that the airflow with heat flows into the inner space of the check inner core structure for heating.