阅读说明：本技术 一种风电机组叶片表面故障快速拍照车及拍照方法 (rapid photographing vehicle and photographing method for surface faults of blades of wind turbine generator ) 是由 张士龙 刘庆超 张宁宁 于 2019-08-19 设计创作，主要内容包括：本发明公开了一种风电机组叶片表面故障快速拍照车及拍照方法,拍照车包括两组用于拍摄图像的相机群,可以伸缩的相机群支架,拍照车,激光测距仪,光束定位装置；两组用于拍摄图像的相机群安装于可以伸缩的相机群支架上,可以伸缩的相机群支架安装于拍照车后部车厢的中部两侧,激光测距仪用于测取两组用于拍摄图像的相机群的物镜至叶片中部的距离,启动自动拍摄,光束定位装置用于定位拍照车与风电机组塔筒的相对位置。本发明结构简单、实用性强,适合风电行业使用,具备可操作性,具备科学性,拍照车使得快速拍摄所有叶片正反面得以实现,符合风车扇叶长60米,宽6米的实际拍摄要求。具有灵敏度高、结果直观形象等优点,具有广泛适用性。(the invention discloses a quick photographing vehicle and a photographing method for surface faults of blades of a wind turbine generator, wherein the photographing vehicle comprises two camera groups for photographing images, a telescopic camera group support, a photographing vehicle, a laser range finder and a light beam positioning device; two sets of camera crowd that are used for shooing the image install on camera crowd support that can stretch out and draw back, camera crowd support that can stretch out and draw back installs in the middle part both sides in car rear portion carriage of shooing, and laser range finder is used for finding the objective of two sets of camera crowd that are used for shooing the image to the distance in the middle part of the blade, starts automatic shooting, and light beam positioner is used for fixing a position the car of shooing and the relative position of wind turbine generator system tower section of thick bamboo. The invention has simple structure and strong practicability, is suitable for the wind power industry, has operability and scientificity, and the camera car realizes the rapid shooting of the front and back surfaces of all the blades and meets the actual shooting requirements of the windmill blades with the length of 60 meters and the width of 6 meters. Has the advantages of high sensitivity, visual and vivid result and the like, and has wide applicability.)

1. The utility model provides a wind turbine generator system blade surface trouble car of shooing fast which characterized in that: the system comprises two groups of cameras (1) for shooting images, a telescopic camera group bracket (2), a shooting vehicle (3), a laser range finder (4) and a light beam positioning device (5); the two sets of camera crowd (1) that are used for shooting the image are installed on camera crowd support (2) that can stretch out and draw back, camera crowd support (2) that can stretch out and draw back are installed in the middle part both sides in car (3) rear portion carriage of shooing, laser range finder (4) are used for finding the distance to the blade middle part of two sets of objective that are used for shooting the camera crowd (1) of image, light beam positioner (5) are used for fixing a position and shoot the relative position of car (3) and wind turbine generator system.

2. the photographing method of the rapid photographing vehicle for the surface fault of the wind turbine generator blade according to claim 1, characterized in that: the photographing method comprises the following steps:

1) Firstly, yawing the wind turbine generator, and enabling the front and back shooting positions of the blades to be vertical to a connecting line between the shooting vehicle (3) and the sun position, wherein the shooting vehicle (3) is positioned between a tower cylinder of the wind turbine generator and the sun position;

2) the photographing vehicle (3) uses the light beam positioning device (5) to enable the connection line of the photographing vehicle (3) and the tower drum to be vertical to the rotating plane of the blades, and at the moment, the photographing vehicle (3) is located on the vertical line penetrating through the tower drum;

3) When shooting, the camera group bracket (2) is extended for a certain length, and two camera groups (1) used for shooting images are positioned at the oblique lower part of the blade;

4) When the laser range finder (4) detects that the blades rotate to a certain length away from the two sets of eyepiece of the camera group (1) for shooting images, the two sets of camera groups (1) for shooting images are automatically started to shoot and store.

Technical Field

the invention relates to a quick photographing vehicle and a photographing method for surface faults of blades of a wind turbine generator, and belongs to the field of fault diagnosis of the wind turbine generator.

Background

Wind power generation is the most mature renewable energy power generation except hydroelectric power generation, and the installed capacity of the wind power generation accounts for the vast majority of the total installed capacity of the whole renewable energy power generation.

The wind generating set comprises a wind wheel and a generator; the wind wheel comprises blades, a hub, a reinforcing member and the like; it has the functions of wind driven blade rotation to generate electricity, generator head rotation, etc. The wind power generation power supply comprises a wind generating set, a tower frame for supporting the generating set, a storage battery charging controller, an inverter, an unloader, a grid-connected controller, a storage battery pack and the like.

Blades of the wind generating set are exposed in the field all the year round and are easily subjected to wind blowing, sun drying, rain and lightning stroke, so that various defects are easily caused. The fan blade has various defects caused by the following reasons:

1. production defects

1.1 use of unreasonable materials

1.2 relaxed quality control

1.3 the process of the production tool is too complex, and products with consistent quality are difficult to produce.

2. The natural cause

The method mainly comprises the following steps: lightning strikes, particles in the air, high velocity winds, shear winds, inclement weather, and the like.

3. Improper operation and maintenance

3.1 over-rated power operation

3.2 out of control

When the variable pitch system of the fan fails, the impeller cannot stop rotating due to braking on the fan, the blades cannot control and continue to rotate rapidly, and the blades are thrown out seriously, so that disastrous accidents of the fan are caused.

3.3 lack of preventive maintenance

During routine operation and maintenance of the fan, the blades are not paid attention. However, the aging of the blades changes with time under adverse conditions such as sunlight, acid rain, gust, natural vibration, wind, sand, salt mist and the like. It is difficult to inspect and maintain the blades on a routine basis, and in many wind farms the blades are subject to natural cracking, pitting, surface wear, lightning damage, transverse cracking, etc., due to aging. If the daily maintenance is carried out in place, the problems can avoid high maintenance cost in the future and reduce the economic loss caused by shutdown.

the wind turbine generator blade is easy to generate potential safety hazards, causes of the potential safety hazards are various, and great difficulty is brought to automatic identification, classification and positioning of faults of the wind turbine generator blade. The quantity of the wind turbine generators is huge, hundreds of wind turbine generators are arranged in each wind power field, hundreds of wind power fields are arranged in each group, the situation of blade faults of the wind turbine generators of the group is mastered, fault positions are located, the faults are solved, each wind turbine generator needs to shoot, the workload is huge, and a fast shooting vehicle and a fast shooting method for the surface faults of the blades of the wind turbine generators are urgently needed.

At present, no quick photographing vehicle and quick photographing method for surface faults of blades of a wind turbine generator set are developed for relevant research.

disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a quick photographing vehicle and a quick photographing method for the surface faults of the blades of the wind turbine generator, which are reasonable in structural design.

The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a wind turbine generator system blade surface trouble car of shooing fast which characterized in that: the system comprises two camera groups for shooting images, a telescopic camera group bracket, a shooting vehicle, a laser range finder and a light beam positioning device; the two sets of camera groups for shooting images are installed on the camera group support which can stretch out and draw back, the camera group support which can stretch out and draw back is installed on the two sides of the middle of the carriage at the rear part of the shooting vehicle, the laser range finder is used for measuring the distance from the objective lens of the two sets of camera groups for shooting images to the middle of the blade, automatic shooting is started, and the light beam positioning device is used for positioning the relative position of the shooting vehicle and the tower drum of the wind turbine generator.

A photographing method of a rapid photographing vehicle for surface faults of blades of a wind turbine generator is characterized in that: the photographing method comprises the following steps:

1) Firstly, yawing the wind turbine generator, and enabling the front and back shooting positions of the blade to be vertical to a connecting line between a shooting vehicle and the sun position, wherein the shooting vehicle is positioned between a tower cylinder of the wind turbine generator and the sun position;

2) The photographing vehicle uses the light beam positioning device, so that the connection line of the photographing vehicle and the tower drum is vertical to the rotating plane of the blade, and the photographing vehicle is positioned on the vertical line penetrating through the tower drum;

3) When shooting, extending the camera group bracket for a certain length to enable two groups of camera groups for shooting images to be positioned at the oblique lower part of the blade;

4) When the laser range finder detects that the blades rotate to a certain length away from the two camera group eyepieces used for shooting the images, the two camera groups used for shooting the images are automatically started to shoot and store.

Furthermore, the invention designs the shooting vehicle, thereby greatly improving the shooting moving speed.

Furthermore, the invention designs two groups of cameras for shooting images, which can double the shooting speed, and the shooting device does not need to be moved when the front and back sides of each blade are shot.

Compared with the prior art, the invention has the following advantages and effects:

1. Simple structure, practicality are strong, are fit for the wind-powered electricity generation trade and use, possess maneuverability.

2. The novel windmill blade has the advantages that scientificity is realized, the photographing vehicle can realize rapid photographing of the front and the back of all blades, and the actual photographing requirements of 60 meters in length and 6 meters in width of the windmill blade are met.

3. Has the advantages of high sensitivity, visual and vivid result and the like.

4. Has wide applicability.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

In the figure: camera group 1, camera group support 2, car of shooing 3, laser range finder 4, light beam positioner 5.

Detailed Description

The present invention will be described in further detail below by way of examples with reference to the accompanying drawings, which are illustrative of the present invention and are not to be construed as limiting the present invention.