CN104280115A - Vibration test sensor of wind and solar complementary tower rod - Google Patents
Vibration test sensor of wind and solar complementary tower rod Download PDFInfo
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- CN104280115A CN104280115A CN201410318466.6A CN201410318466A CN104280115A CN 104280115 A CN104280115 A CN 104280115A CN 201410318466 A CN201410318466 A CN 201410318466A CN 104280115 A CN104280115 A CN 104280115A
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- 230000000295 complement Effects 0.000 title abstract description 3
- 230000001133 acceleration Effects 0.000 claims abstract description 25
- 230000000087 stabilizing Effects 0.000 claims abstract description 21
- 238000002955 isolation Methods 0.000 claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 11
- 238000004458 analytical method Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000005693 optoelectronics Effects 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000000875 corresponding Effects 0.000 description 3
- 230000002093 peripheral Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000003750 conditioning Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000001105 regulatory Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Abstract
The invention relates to a vibration test sensor of a wind and solar complementary tower rod. The vibration test sensor comprises a single-chip microcomputer control module, a three-dimensional acceleration detecting module, a low voltage stabilizing power source, an optoelectronic isolation module and a parameter setting circuit module, wherein the three-dimensional acceleration detecting module is connected with the single-chip microcomputer control module, the low voltage stabilizing power source is connected with the single-chip microcomputer control module, the single-chip microcomputer control module is connected with the optoelectronic isolation module, and the parameter setting circuit module is connected with the single-chip microcomputer control module. Because the vibration condition of the tower rod is measured and analyzed, the vibration condition of the tower rod is fed back to a control system, and therefore the rotating speed of a wind driven generator can be effectively adjusted by a controller in time, the running frequency of a draught fan is inconsistent with the inherent frequency of the tower rod, and the resonance phenomenon can be avoided. Thus, it can be guaranteed that a whole machine set can stably, safely and reliably run in the working process.
Description
Technical field
The invention belongs to the novel vibrating sensing technology towards the serial new forms of energy industry of scene, start the field that vibration transducer is new.
Background technology
Tower bar is the main device supporting the parts such as wind power generating set, photovoltaic module in wind-light complementary system.Most current enterprise is to the design of tower bar, mainly focus on outward appearance, durability, updating of tower bar strength and stiffness is also only considered that the thing that tower bar carries weighs (as the parts such as blower fan, photovoltaic module) and residing rugged surroundings (as extreme wind regime, corrosion) these two aspects.But ignore and can produce when blower fan rotational frequency is consistent with tower bar natural frequency this major issue resonating and endanger.
Summary of the invention
In order to solve the defect that can produce resonance when blower fan rotational frequency is consistent with tower bar natural frequency in prior art, providing one to make between blower fan operating frequency and tower bar natural frequency inconsistent, avoiding the wind-solar hybrid tower vibration of bar testing sensor resonated.
To achieve these goals, the technical solution used in the present invention is:
A kind of wind-solar hybrid tower vibration of bar testing sensor, comprise single chip control module, three-dimensional acceleration detection module, low-voltage stabilized voltage supply, photoelectric isolation module and parameter setting circuit module, three-dimensional acceleration detection module is connected with single chip control module, low-voltage stabilized voltage supply is connected with single chip control module, single chip control module is connected with photoelectric isolation module, and parameter setting circuit module is connected with single chip control module.
Above-mentioned a kind of wind-solar hybrid tower vibration of bar testing sensor, described single chip control module comprises having to be analyzed the vibration frequency signal received and to export the PIC16F675 chip of analysis result function, described three-dimensional acceleration detection module comprises the MMA7455L tri-axle digital acceleration sensor be fixedly installed between tower bar and fan, the GP4 pin of described PIC16F675 chip is connected with the SDO pin of described MMA7455L tri-axle digital acceleration sensor, the GP5 pin of described PIC16F675 chip is connected with the SDI pin of described MMA7455L tri-axle digital acceleration sensor, the GP1 pin of described PIC16F675 chip is connected with the SCL pin of described MMA7455L tri-axle digital acceleration sensor, the GP0 pin of described PIC16F675 chip is connected with the input end of described parameter setting module, the input end of described parameter setting module is connected with the output terminal of described low-voltage stabilized voltage supply by the 44 resistance, the VDD pin of described PIC16F675 chip is connected with the output terminal of described low-voltage stabilized voltage supply, the output end voltage of described low-voltage stabilized voltage supply is 3V ~ 3.5V, described photoelectric isolation module comprises the second resistance and PC817 photoelectrical coupler, one end of the second described resistance is connected with the GP2 pin of described PIC16F675 chip, the other end of the second described resistance is connected with the negative input of described PC817 photoelectrical coupler, the electrode input end of described PC817 photoelectrical coupler is connected with the output terminal of described low-voltage stabilized voltage supply, the grounded emitter of described PC817 photoelectrical coupler.
Above-mentioned a kind of wind-solar hybrid tower vibration of bar testing sensor, described low-voltage stabilized voltage supply comprises the first electrochemical capacitor, second electrochemical capacitor, first electric capacity, second electric capacity and LM1117-3.3 voltage stabilizing chip, the positive pole of the first described electrochemical capacitor is connected with outside 5V ~ 12V voltage, the positive pole of the first described electrochemical capacitor is connected with one end of the first described electric capacity and the input end of described LM1117-3.3 voltage stabilizing chip respectively, the minus earth of the first described electrochemical capacitor, the negative pole of the first described electrochemical capacitor respectively with the other end of the first described electric capacity, the pin of described LM1117-3.3 voltage stabilizing chip is earth terminal, the negative pole of the second described electrochemical capacitor is connected with one end of the second described electric capacity, the output terminal of described LM1117-3.3 voltage stabilizing chip respectively with the positive pole of the second described electrochemical capacitor, the other end of the second described electric capacity, the VDD pin of described PIC16F675 chip connects, the output voltage of the output terminal of described LM1117-3.3 voltage stabilizing chip is 3.3V.
Above-mentioned a kind of wind-solar hybrid tower vibration of bar testing sensor, described parameter setting module comprises 4-bit DIP switch, 3rd resistance, 4th resistance, 5th resistance, 6th resistance and the 5th electric capacity and the 44 resistance, one end of the 3rd described resistance respectively with one end of the 5th described electric capacity, the GP0 pin of described PIC16F675 chip and one end of the 44 described resistance connect, the other end ground connection of the 5th described electric capacity, the other end of the 44 described resistance is connected with the output terminal of described LM1117-3.3 voltage stabilizing chip, the other end of the 3rd described resistance is connected with the first moving contact of described 4-bit DIP switch and one end of the 4th described resistance respectively, the other end of the 4th described resistance is connected with described one end of the 5th resistance and the second moving contact of described 4-bit DIP switch respectively, the other end of the 5th described resistance is connected with one end of the 6th described resistance and the 3rd moving contact of described 4-bit DIP switch respectively, the other end of the 6th described resistance is connected with the 4th moving contact of described 4-bit DIP switch, the stationary contact ground connection of described 4-bit DIP switch.
Beneficial effect of the present invention is: by measuring tower vibration of bar situation and analyze, tower vibration of bar situation is fed back to control system, so that controller regulates the rotating speed of aerogenerator timely and effectively, make between blower fan operating frequency and tower bar natural frequency inconsistent, avoid resonance effect.Thus ensureing the operation that whole unit is steady and safe and reliable in the course of the work, the quiescent current of whole circuit is low, less than 100 microamperes, and the signal that single-chip microcomputer built-in circuit can all gather carries out filtering process, removes irrelevant impurity ripple.The conditioning signal exported by single-chip microcomputer has long-distance transmissions ability, 10 meters and following.
Accompanying drawing explanation
Fig. 1 is model calling figure of the present invention;
Fig. 2 is circuit theory diagrams of the present invention;
Fig. 3 is the circuit diagram of three-dimensional acceleration detection module of the present invention;
Fig. 4 is the circuit diagram of single chip control module of the present invention;
Fig. 5 is the circuit diagram of photoelectric isolation module of the present invention;
Fig. 6 is the circuit diagram of low-voltage stabilized voltage supply of the present invention;
Fig. 7 is the circuit diagram of parameter setting circuit module of the present invention.
Embodiment
For making to do further understanding to the present invention, referring to Figure of description and specific embodiment, the invention will be further described:
As shown in Figures 1 to 7, a kind of wind-solar hybrid tower vibration of bar testing sensor, comprise single chip control module 2, three-dimensional acceleration detection module 1, low-voltage stabilized voltage supply 4, photoelectric isolation module 3 and parameter setting circuit module 5, three-dimensional acceleration detection module 1 is connected with single chip control module 2, low-voltage stabilized voltage supply 4 is connected with single chip control module 2, single chip control module 1 is connected with photoelectric isolation module 3, and parameter setting circuit module 5 is connected with single chip control module 2.
Single chip control module comprises having to be analyzed the vibration frequency signal received and to export the PIC16F675 chip of analysis result function, three-dimensional acceleration detection module comprises the MMA7455L tri-axle digital acceleration sensor be fixedly installed between tower bar and fan, the GP4 pin of PIC16F675 chip is connected with the SDO pin of MMA7455L tri-axle digital acceleration sensor, the GP5 pin of PIC16F675 chip is connected with the SDI pin of MMA7455L tri-axle digital acceleration sensor, the GP1 pin of PIC16F675 chip is connected with the SCL pin of MMA7455L tri-axle digital acceleration sensor, the GP0 pin of PIC16F675 chip is connected with the input end of parameter setting module, the input end of parameter setting module is connected with the output terminal of low-voltage stabilized voltage supply by the 44 resistance, the VDD pin of PIC16F675 chip is connected with the output terminal of low-voltage stabilized voltage supply, the output end voltage of low-voltage stabilized voltage supply is 3V ~ 3.5V, photoelectric isolation module comprises the second resistance and PC817 photoelectrical coupler, one end of second resistance is connected with the GP2 pin of PIC16F675 chip, the other end of the second resistance is connected with the negative input of PC817 photoelectrical coupler, the electrode input end of PC817 photoelectrical coupler is connected with the output terminal of low-voltage stabilized voltage supply, the grounded emitter of PC817 photoelectrical coupler, T5 electricity frequently signal exports, be connected with wind/light complementation controller Signal reception.
Low-voltage stabilized voltage supply comprises the first electrochemical capacitor, second electrochemical capacitor, first electric capacity, second electric capacity and LM1117-3.3 voltage stabilizing chip, the positive pole of the first electrochemical capacitor is connected with outside 5V ~ 12V voltage, the positive pole of the first electrochemical capacitor is connected with one end of the first electric capacity and the input end of described LM1117-3.3 voltage stabilizing chip respectively, the minus earth of the first electrochemical capacitor, the negative pole of the first electrochemical capacitor respectively with the other end of the first described electric capacity, the pin of LM1117-3.3 voltage stabilizing chip is earth terminal, the negative pole of the second electrochemical capacitor is connected with one end of the second electric capacity, the output terminal of LM1117-3.3 voltage stabilizing chip respectively with the positive pole of the second electrochemical capacitor, the other end of the second electric capacity, the VDD pin of PIC16F675 chip connects, the output voltage of the output terminal of LM1117-3.3 voltage stabilizing chip is 3.3V.
Parameter setting module comprises 4-bit DIP switch, 3rd resistance, 4th resistance, 5th resistance, 6th resistance and the 5th electric capacity and the 44 resistance, one end of 3rd resistance respectively with one end of the 5th electric capacity, the GP0 pin of PIC16F675 chip and one end of the 44 resistance connect, the other end ground connection of the 5th electric capacity, the other end of the 44 resistance is connected with the output terminal of LM1117-3.3 voltage stabilizing chip, the other end of the 3rd resistance is connected with the first moving contact of 4-bit DIP switch and one end of the 4th resistance respectively, the other end of the 4th resistance is connected with one end of the 5th resistance and the second moving contact of 4-bit DIP switch respectively, the other end of the 5th resistance is connected with one end of the 6th resistance and the 3rd moving contact of 4-bit DIP switch respectively, the other end of the 6th resistance is connected with the 4th moving contact of 4-bit DIP switch, the stationary contact ground connection of 4-bit DIP switch.
As shown in Figure 2, when wind light mutual complementing unit is in practical matter operational process, when there is vibration in tower bar, by the accekeration that chip model is the 3D acceleration detection module pickup tower bar that MMA7455L and peripheral circuit form, the single chip control module of the single-chip microcomputer that model is PIC16F675 and peripheral circuit composition is transferred to after vibrating machine amount is changed into corresponding electric signal, by single-chip microcomputer, sampling analysis is carried out to data, when tower vibration of bar amplitude and vibration duration exceed setting value, by single-chip microcomputer, corresponding speed governing or brake instruction are sent to wind/light complementation controller.The voltage stabilizing chip that low pressure mu balanced circuit is LM1117-3.3 by model and peripheral circuit consist of the power supply that whole vibration-testing circuit provides 3.3V, and input voltage range is 5V ~ 12V.For the wind-solar hybrid tower bar of different size, because the natural frequency of tower bar is different, therefore design parameter arranges module.This module is made up of 4 toggle switchs and interlock circuit, the tower bar of I grade in 4 toggle switchs, II grade, III grade and the IV grade corresponding four kinds of specifications of difference.The circuit pressure drop regulating different gears to produce is different, feeds back to single-chip computer control system, makes single-chip computer control system send the regulating command of dimension to wind/light complementation controller.The effect of photoisolator is when vibration-testing circuit transmits electric signal to wind/light complementation controller while, to the isolation carrying out electrical quantity between vibration-testing circuit and wind light mutual complementing, as voltage etc., can independently normally work to make both.
The quiescent current of whole circuit is low, less than 100 microamperes, and the signal that single-chip microcomputer built-in circuit can all gather carries out filtering process, removes irrelevant impurity ripple.The conditioning signal exported by single-chip microcomputer has long-distance transmissions ability, 10 meters and following.
By measuring tower vibration of bar situation and analyze, tower vibration of bar situation is fed back to control system, so that controller regulates the rotating speed of aerogenerator timely and effectively, make between blower fan operating frequency and tower bar natural frequency inconsistent, avoid resonance effect.Thus ensure the operation that whole unit is steady and safe and reliable in the course of the work.
More than show and describe ultimate principle of the present invention, principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; the just principle of the present invention described in above-described embodiment and instructions; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention; these changes and improvements all fall in claimed scope of the present invention, and the protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (4)
1. a wind-solar hybrid tower vibration of bar testing sensor, it is characterized in that, comprise single chip control module, three-dimensional acceleration detection module, low-voltage stabilized voltage supply, photoelectric isolation module and parameter setting circuit module, three-dimensional acceleration detection module is connected with single chip control module, low-voltage stabilized voltage supply is connected with single chip control module, single chip control module is connected with photoelectric isolation module, and parameter setting circuit module is connected with single chip control module.
2. a kind of wind-solar hybrid tower vibration of bar testing sensor according to claim 1, it is characterized in that, described single chip control module comprises having to be analyzed the vibration frequency signal received and to export the PIC16F675 chip of analysis result function, described three-dimensional acceleration detection module comprises the MMA7455L tri-axle digital acceleration sensor be fixedly installed between tower bar and fan, the GP4 pin of described PIC16F675 chip is connected with the SDO pin of described MMA7455L tri-axle digital acceleration sensor, the GP5 pin of described PIC16F675 chip is connected with the SDI pin of described MMA7455L tri-axle digital acceleration sensor, the GP1 pin of described PIC16F675 chip is connected with the SCL pin of described MMA7455L tri-axle digital acceleration sensor, the GP0 pin of described PIC16F675 chip is connected with the input end of described parameter setting module, the input end of described parameter setting module is connected with the output terminal of described low-voltage stabilized voltage supply by the 44 resistance, the VDD pin of described PIC16F675 chip is connected with the output terminal of described low-voltage stabilized voltage supply, the output end voltage of described low-voltage stabilized voltage supply is 3V ~ 3.5V, described photoelectric isolation module comprises the second resistance and PC817 photoelectrical coupler, one end of the second described resistance is connected with the GP2 pin of described PIC16F675 chip, the other end of the second described resistance is connected with the negative input of described PC817 photoelectrical coupler, the electrode input end of described PC817 photoelectrical coupler is connected with the output terminal of described low-voltage stabilized voltage supply, the grounded emitter of described PC817 photoelectrical coupler.
3. a kind of wind-solar hybrid tower vibration of bar testing sensor according to claim 1, it is characterized in that, described low-voltage stabilized voltage supply comprises the first electrochemical capacitor, second electrochemical capacitor, first electric capacity, second electric capacity and LM1117-3.3 voltage stabilizing chip, the positive pole of the first described electrochemical capacitor is connected with outside 5V ~ 12V voltage, the positive pole of the first described electrochemical capacitor is connected with one end of the first described electric capacity and the input end of described LM1117-3.3 voltage stabilizing chip respectively, the minus earth of the first described electrochemical capacitor, the negative pole of the first described electrochemical capacitor respectively with the other end of the first described electric capacity, the pin of described LM1117-3.3 voltage stabilizing chip is earth terminal, the negative pole of the second described electrochemical capacitor is connected with one end of the second described electric capacity, the output terminal of described LM1117-3.3 voltage stabilizing chip respectively with the positive pole of the second described electrochemical capacitor, the other end of the second described electric capacity, the VDD pin of described PIC16F675 chip connects, the output voltage of the output terminal of described LM1117-3.3 voltage stabilizing chip is 3.3V.
4. a kind of wind-solar hybrid tower vibration of bar testing sensor according to claim 2, it is characterized in that, described parameter setting module comprises 4-bit DIP switch, 3rd resistance, 4th resistance, 5th resistance, 6th resistance and the 5th electric capacity and the 44 resistance, one end of the 3rd described resistance respectively with one end of the 5th described electric capacity, the GP0 pin of described PIC16F675 chip and one end of the 44 described resistance connect, the other end ground connection of the 5th described electric capacity, the other end of the 44 described resistance is connected with the output terminal of described LM1117-3.3 voltage stabilizing chip, the other end of the 3rd described resistance is connected with the first moving contact of described 4-bit DIP switch and one end of the 4th described resistance respectively, the other end of the 4th described resistance is connected with described one end of the 5th resistance and the second moving contact of described 4-bit DIP switch respectively, the other end of the 5th described resistance is connected with one end of the 6th described resistance and the 3rd moving contact of described 4-bit DIP switch respectively, the other end of the 6th described resistance is connected with the 4th moving contact of described 4-bit DIP switch, the stationary contact ground connection of described 4-bit DIP switch.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410318466.6A CN104280115A (en) | 2014-07-04 | 2014-07-04 | Vibration test sensor of wind and solar complementary tower rod |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410318466.6A CN104280115A (en) | 2014-07-04 | 2014-07-04 | Vibration test sensor of wind and solar complementary tower rod |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201716103U (en) * | 2010-06-13 | 2011-01-19 | 重庆市电力建设总公司 | Vibration detection device for micro-variation capacitance pole tower |
| CN103267527A (en) * | 2013-06-08 | 2013-08-28 | 重庆绿色智能技术研究院 | System and method for realizing tower stability monitoring and early-warning |
| CN203274791U (en) * | 2012-11-23 | 2013-11-06 | 国家电网公司 | Remote on-line state detection system of high-tension transmission line |
| CN204085685U (en) * | 2014-07-04 | 2015-01-07 | 宁波风神风电集团有限公司 | A kind of wind-solar hybrid tower vibration of bar testing sensor |
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2014
- 2014-07-04 CN CN201410318466.6A patent/CN104280115A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201716103U (en) * | 2010-06-13 | 2011-01-19 | 重庆市电力建设总公司 | Vibration detection device for micro-variation capacitance pole tower |
| CN203274791U (en) * | 2012-11-23 | 2013-11-06 | 国家电网公司 | Remote on-line state detection system of high-tension transmission line |
| CN103267527A (en) * | 2013-06-08 | 2013-08-28 | 重庆绿色智能技术研究院 | System and method for realizing tower stability monitoring and early-warning |
| CN204085685U (en) * | 2014-07-04 | 2015-01-07 | 宁波风神风电集团有限公司 | A kind of wind-solar hybrid tower vibration of bar testing sensor |
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