CN202916079U - Wind turbine tower load measurement system - Google Patents
Wind turbine tower load measurement system Download PDFInfo
- Publication number
- CN202916079U CN202916079U CN 201220577851 CN201220577851U CN202916079U CN 202916079 U CN202916079 U CN 202916079U CN 201220577851 CN201220577851 CN 201220577851 CN 201220577851 U CN201220577851 U CN 201220577851U CN 202916079 U CN202916079 U CN 202916079U
- Authority
- CN
- China
- Prior art keywords
- tower
- wireless terminal
- stress
- terminal measurement
- generating set
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Arrangements For Transmission Of Measured Signals (AREA)
- Wind Motors (AREA)
Abstract
The utility model provides a wind turbine tower load measurement system. The system comprises a plurality of measurement sub-systems and a PC machine system. Each measurement sub-system includes a plurality of wireless terminal measurement devices mounted on a same horizontal surface on the inner wall of the tower, the wireless terminal measurement device is used for measuring the stress data of the corresponding points and the plurality of measurement sub-systems are sequentially distributed along the height direction of the tower; the PC machine system is connected with each wireless terminal measurement device in the wireless transmission way, and used for collection and statistical analysis of the stress data of all the wireless terminal measurement devices, so as to obtain the load value of the whole tower. The wind turbine tower load measurement system solves the problem that the whole load of the tower on the wind electric field can not be measured. The load measurement system is simple and reliable, and convenient to popularize.
Description
The skill technical field
The utility model relates to the wind power technology field, particularly relates to a kind of tower of wind generating set cylinder load measuring system.
Background technology
Along with wind-power electricity generation constantly develops, the wind energy turbine set installed capacity is risen year by year in recent years, and the shared ratio of wind-power electricity generation is increasing, becomes gradually a kind of conventional energy resources.Along with more and more higher to wind-powered electricity generation unit performance requirement, as the important foundation that supports whole unit, the LOAD FOR of the tower cylinder of wind-powered electricity generation unit when design be ever more important also.
As everyone knows, the rounded cylindrical structure that the tower cylinder namely is made of Steel material, therefore under same material and structural condition, tower barrel thickness is thicker, and the Steel material of employing is more, and its load level is just higher, but its cost also can sharply increase.Therefore, the key of tower cylinder design is under the prerequisite that obtains enough load requirements, to reduce the use of Steel material by theoretical calculating and emulation and test as far as possible, reduces cost to reach under the prerequisite that guarantees safety as far as possible.
In existing tower cylinder design, owing to be subjected to the impact of the objective condition such as its size, it is main that its load test adopts theoretical calculating and emulation more, and then carries out simulation test for the tower cartridge unit of merogenesis.For the test of tower cylinder integral body, the especially test to tower cylinder overall load at the wind energy turbine set scene still has no relevant report up till now.Yet, basic support component as the wind power generating set of complex control system, the overall load test of tower cylinder seems particularly important, especially on-the-spot in wind energy turbine set, the tower of wind generating set cylinder of firm lifting being finished or moved the long period carries out load test, will provide reliable test basis for the further optimization of wind-powered electricity generation unit.
This shows that existing tower of wind generating set cylinder load measurement technology still has deficiency and defective, and demands urgently further being improved.How to be implemented in the wind energy turbine set scene tower cylinder overall load is measured in real time, the current industry utmost point of real genus needs improved target.
Summary of the invention
The purpose of this utility model provides a kind of tower of wind generating set cylinder load measuring system, to be implemented in the wind energy turbine set scene tower cylinder overall load is measured in real time, thereby is overcome the deficiency that existing tower cylinder load measurement adopts theoretical calculating and analogue simulation.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of tower of wind generating set cylinder load measuring system, comprise: a plurality of measurement subsystems, each measurement subsystem comprises that several are installed in the wireless terminal measurement mechanism on the tower cylinder inwall same level face, described wireless terminal measurement mechanism is used for measuring the stress data of respective point, and a plurality of measurement subsystems distribute successively along tower cylinder short transverse; The PC system is connected by wireless transmission with each wireless terminal measurement mechanism, is used for the stress data of all wireless terminal measurement mechanisms is gathered and statistical study, draws the load value of whole tower cylinder.
As further improvement, described wireless terminal measurement mechanism comprises: strain gauge, be used for finishing the stress signal collection, and be converted into electric signal; The stress treatment circuit is used for that the counter stress electric signal gathers, filtering and digitized processing; Single Chip Microcomputer (SCM) system, be used for to the stress signal after the digitized processing carry out Stress calculation, data are processed and are obtained stress data, and finish the logic control of whole wireless terminal measurement mechanism; Radio receiving transmitting module is used for calculating through Single Chip Microcomputer (SCM) system, processes the stress data that obtains and go out by wireless transmission.
As further improvement, described strain gauge adopts the higher full-bridge type stress section connected mode of measuring accuracy.
As further improvement, described Single Chip Microcomputer (SCM) system comprises the Stress calculation module, is used for the stress signal after the digitized processing is carried out Stress calculation, obtains stress data; Data processing module is analyzed the stress data after obtaining processing for the stress data that the counter stress computing module obtains; Battery module is for the energy supply of wireless terminal measurement mechanism; Logic control module is used for the transmission of the stress data after control battery module and control are processed.
As further improvement, described radio receiving transmitting module is by the Zigbee module composition.
As further improvement, described wireless terminal measurement mechanism is installed on the tower cylinder inwall by the alnico magnets that are equipped with in its bottom.
As further improvement, described several wireless terminal measurement mechanisms on tower cylinder inwall same level face evenly distribute.
Because adopt technique scheme, the utility model has the following advantages at least:
(1) by a plurality of measurement subsystems that distribute successively along tower cylinder short transverse, realized the measurement to tower of wind generating set cylinder overall load;
(2) mode of employing wirelessly transmitting data has reduced the workload that long distance line is installed in the tower cylinder;
(3) wireless terminal device adopts powered battery, has solved the problem that is difficult to power in the tower cylinder;
(4) the wireless terminal device bottom is equipped with alnico magnets, can directly be adsorbed on tower cylinder inwall, has reduced the workload that equipment is installed;
(5) the utility model need not the wind-powered electricity generation unit is carried out any transformation, also need not to carry out any information communication with the wind-powered electricity generation unit, and equipment is simple and reliable, and easy disassembling is convenient to promote.
Description of drawings
Above-mentioned only is the general introduction of technical solutions of the utility model, and for can clearer understanding technological means of the present utility model, the utility model is described in further detail below in conjunction with accompanying drawing and embodiment.
Fig. 1 is wireless terminal measurement mechanism structural representation.
Fig. 2 is the scheme of installation of measurement subsystem in the tower of wind generating set cylinder.
Fig. 3 is the utility model tower of wind generating set cylinder load measuring system one-piece construction synoptic diagram.
Embodiment
A kind of tower of wind generating set cylinder load measuring system of the present utility model comprises a plurality of measurement subsystems that distribute successively along tower cylinder short transverse, and each measurement subsystem comprises that several are installed in the wireless terminal measurement mechanism on the tower cylinder inwall same level face; The PC system is connected by wireless transmission with each wireless terminal measurement mechanism, is used for the stress data of all wireless terminal measurement mechanisms is carried out statistical study, draws the load value of whole tower cylinder.
Wherein, as shown in Figure 1, the wireless terminal measurement mechanism comprises strain gauge, stress treatment circuit, Single Chip Microcomputer (SCM) system and radio receiving transmitting module.
Strain gauge is made of stress section, and the stress signal of tower of wind generating set cylinder is converted to measurable electric signal.For measuring accuracy, stress section can adopt general full-bridge type connected mode.When should select wind little simultaneously, under the stopped status strain gauge be installed, to reduce wind to the impact of tower cylinder load as far as possible.
The electric signal that the stress treatment circuit is measured strain gauge gathers, filtering and digitized processing, is convenient to follow-up Single Chip Microcomputer (SCM) system computing and processing.
The embedded system that Single Chip Microcomputer (SCM) system is comprised of single-chip microcomputer, built-in Stress calculation module, data processing module, Logic control module, and powered by battery module.The stress signal of Stress calculation module counter stress processing circuit processes calculates, and obtains stress data; Data processing module counter stress data are processed accordingly, and then the stress data σ after obtaining processing under the control of Logic control module, sends the data to follow-up radio receiving transmitting module.The battery module of Single Chip Microcomputer (SCM) system is managed by Logic control module, and when system did not carry out stress measurement, Logic control module control battery module carried out dormancy, reduces power consumption, to prolong the surveying work time.
Radio receiving transmitting module can adopt the Zigbee module of being convenient to wireless networking to realize.Because the Zigbee home control network communication protocol can be set to each module terminal device or routing device, therefore be convenient to realize the foundation of radio sensing network.Wireless terminal measurement mechanism in the utility model all adopts the Z igbee module that is set to terminal.
Each wireless terminal measurement mechanism bottom is equipped with alnico magnets, can directly adsorb to be installed on tower cylinder inwall.During installation, the wireless terminal measurement mechanism evenly distributes at tower cylinder inwall, and on the same level face.As shown in Figure 2, S among the figure
I1, S
I2, S
I3, S
I4For absorption is installed on tower cylinder i locational 4 wireless terminal measurement mechanisms, during measurement, 4 wireless terminal measurement mechanisms are measured simultaneously, obtain stress data σ
I1, σ
I2, σ
I3, σ
I4
Several wireless terminal measurement mechanisms form a measurement subsystem, as shown in Figure 3, take 4 as example, be positioned at n measurement subsystem (S of tower cylinder differing heights
11, S
12, S
13, S
14) ... (S
Nl, S
N2, S
N3, S
N4), with the stress data (σ that measures in real time
11, σ
12, σ
13, σ
14) ... (σ
Nl, σ
N2, σ
N3, σ
N4) send to the PC system by the radio receiving transmitting module by the Zigbee module composition.The built-in data data analysis module of PC system and Logic control module, the data of each wireless terminal measurement mechanism that data analysis module collection radio receiving transmitting module receives, and carry out the data Treatment Analysis, finally draw the load value of tower cylinder integral body; Logic control module carries out logic control to load measuring system, comprises starting instructions such as measuring, stop measurement.
Use the method that the utility model carries out tower of wind generating set cylinder load measurement, comprise the steps: A, measure j the stress data σ that puts that arranges on i position of tower of wind generating set cylinder differing heights respectively
Ij, wherein i gets the natural number between 1～n, n 〉=2, and j gets the natural number between 1～m, m 〉=4, described stress data σ
Ij,, after being converted to electric signal, after filtering and digitized processing, calculated by the stress signal of measuring position; Shown in Fig. 2,3, wherein m is 4; B, with all stress data (σ that records
11, σ
12, σ
13, σ
14) ... (σ
N1, σ
N2, σ
N3, σ
N4) by the PC system that is wirelessly sent to by Z igbee module composition; C, PC system carry out statistical study to all stress datas that record, and draw the load value of whole tower cylinder.The computing formula of the load value of described whole tower cylinder is:
Stress maximal value: σ
Max=max{ (σ
11, σ
12, σ
13, σ
14) ... (σ
N1, σ
N2, σ
N3, σ
N4)
Stress mean value:
By the tower of wind generating set cylinder load measuring system that above-mentioned the utility model provides, can realize the real-time load measurement of the on-the-spot tower cylinder of wind energy turbine set, obtain the stress data of tower cylinder integral body.Simultaneously, provide reliable experimental basis for the further investigation of follow-up tower cylinder load and the further optimization of wind-powered electricity generation unit.
The above; it only is preferred embodiment of the present utility model; be not that the utility model is done any pro forma restriction, those skilled in the art utilize the technology contents of above-mentioned announcement to make a little simple modification, equivalent variations or modification, all drop in the protection domain of the present utility model.
Claims (6)
1. a tower of wind generating set cylinder load measuring system is characterized in that, comprising:
A plurality of measurement subsystems, each measurement subsystem comprises that several are installed in the wireless terminal measurement mechanism on the tower cylinder inwall same level face, described wireless terminal measurement mechanism is used for measuring the stress data of respective point, and a plurality of measurement subsystems distribute successively along tower cylinder short transverse;
The PC system is connected by wireless transmission with each wireless terminal measurement mechanism, is used for the stress data of all wireless terminal measurement mechanisms is gathered and statistical study, draws the load value of whole tower cylinder.
2. tower of wind generating set cylinder load measuring system according to claim 1 is characterized in that, described wireless terminal measurement mechanism comprises:
Strain gauge is used for finishing the stress signal collection, is converted into electric signal;
The stress treatment circuit is used for that the counter stress electric signal gathers, filtering and digitized processing;
Single Chip Microcomputer (SCM) system, be used for to the stress signal after the digitized processing carry out Stress calculation, data are processed and are obtained stress data, and finish the logic control of whole wireless terminal measurement mechanism;
Radio receiving transmitting module is used for calculating through Single Chip Microcomputer (SCM) system, processes the stress data that obtains and go out by wireless transmission.
3. tower of wind generating set cylinder load measuring system according to claim 2 is characterized in that, described strain gauge adopts full-bridge type stress section connected mode.
4. tower of wind generating set cylinder load measuring system according to claim 2 is characterized in that described radio receiving transmitting module is by the Zigbee module composition.
5. each described tower of wind generating set cylinder load measuring system is characterized in that according to claim 1～4, and described wireless terminal measurement mechanism is installed on the tower cylinder inwall by the alnico magnets that are equipped with in its bottom.
6. each described tower of wind generating set cylinder load measuring system is characterized in that according to claim 1～4, and described several wireless terminal measurement mechanisms on tower cylinder inwall same level face evenly distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577851 CN202916079U (en) | 2012-11-05 | 2012-11-05 | Wind turbine tower load measurement system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220577851 CN202916079U (en) | 2012-11-05 | 2012-11-05 | Wind turbine tower load measurement system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202916079U true CN202916079U (en) | 2013-05-01 |
Family
ID=48164384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220577851 Expired - Lifetime CN202916079U (en) | 2012-11-05 | 2012-11-05 | Wind turbine tower load measurement system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202916079U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944395A (en) * | 2012-11-05 | 2013-02-27 | 国电联合动力技术有限公司 | Load measurement system and method for tower barrel of wind generator unit |
-
2012
- 2012-11-05 CN CN 201220577851 patent/CN202916079U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944395A (en) * | 2012-11-05 | 2013-02-27 | 国电联合动力技术有限公司 | Load measurement system and method for tower barrel of wind generator unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202863475U (en) | Fastening-down rail temperature monitoring system of jointless track | |
| CN203038449U (en) | Energy consumption data collector | |
| CN102494719A (en) | Remote monitoring system of communication base station generator and method thereof | |
| CN102324180A (en) | Energy-conservation on-line data acquisition method of elevator long distance and device | |
| CN202916079U (en) | Wind turbine tower load measurement system | |
| CN103217199A (en) | Electricity-saving method for field underground water level monitoring system | |
| CN103175573A (en) | Low-power-consumption health monitoring node for bridge structures | |
| CN103243743B (en) | Quantitative detection method of safe reliability of tower foundation of wind generator | |
| CN102944395A (en) | Load measurement system and method for tower barrel of wind generator unit | |
| CN205450079U (en) | Wind generating set's thunder current measuring device | |
| CN105298751B (en) | The vertical axis wind power generation test device of survey is sentenced based on Distributed Detection and data | |
| CN111583615A (en) | Dual-mode meter reading technology based on LoRa and carrier wave | |
| CN102053285A (en) | Sensor network-based historic site protecting and monitoring system | |
| CN203858290U (en) | Wireless sensor for measuring end-screen current of capacitive equipment | |
| CN203811206U (en) | Enterprise carbon discharge metering and analysis device | |
| CN202648706U (en) | Comprehensive environment monitoring instrument | |
| CN202939473U (en) | Energy-saving technology modification and water-saving project information management system for enterprise | |
| CN205175549U (en) | A wireless low frequency acceleration sensor node means for vibrating monitoring | |
| CN205262743U (en) | Monitoring of large -scale wind energy conversion system base bearing running state and trouble early warning system | |
| CN107654341B (en) | The vertical axis wind power generation monitoring device of survey is sentenced based on power observation and data exception | |
| CN205038791U (en) | Soil moisture content bluetooth data acquisition terminal | |
| CN202583841U (en) | Remote control type energy monitoring system | |
| CN203337211U (en) | Power-saving underground water level monitoring system used in field | |
| CN205880206U (en) | UWB one -dimensional ranging system | |
| CN103001710A (en) | System and method for measuring signal intensity of intelligent antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term |