CN202250603U - Over-speed protection device based on principle of tilt sensor for hub of wind generating set - Google Patents
Over-speed protection device based on principle of tilt sensor for hub of wind generating set Download PDFInfo
- Publication number
- CN202250603U CN202250603U CN2011203499297U CN201120349929U CN202250603U CN 202250603 U CN202250603 U CN 202250603U CN 2011203499297 U CN2011203499297 U CN 2011203499297U CN 201120349929 U CN201120349929 U CN 201120349929U CN 202250603 U CN202250603 U CN 202250603U
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- wheel hub
- control system
- hub
- dip sensor
- dip
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- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses an over-speed protection device based on the principle of a tilt sensor for a hub of a wind generating set. The over-speed protection device mainly comprises the tilt sensor arranged on the hub, a singlechip connected with the tilt sensor and a control system. The utility model has the advantages that the over-speed protection for the hub of the wind generating set is more reliable; various problems in the over-speed protection for the hub of the wind generating set are solved fundamentally; and the development, the improvement and the production costs of the blower cannot be increased greatly. Particularly, the conventional wind generating set is improved, so as to greatly reduce improvement difficulty and cost, which is feasible and effective.
Description
Technical field
The utility model relates to a kind of wind generator unit wheel hub overspeed governor switch, specifically is meant a kind of wind generator unit wheel hub overspeed governor switch based on the dip sensor principle.
Background technique
At present, wind power generating set is in running, and the multiple mode that has of wheel hub is carried out overspeed protection, mode 1: use near the gear rotational speed of switch measurement synchronization in main shaft, thereby when wheel hub exceeds the speed limit, protect.Mode 2: be synchronized with the gear rotational speed of main shaft with encoder, thereby when wheel hub exceeds the speed limit, protect.Mode 3: measure the rotating speed of equipment such as slip ring, generator speed, gear-box, converse the rotational speed of wheel hub indirectly, thereby when wheel hub exceeds the speed limit, protect.
More than these protective measures; It all is the rotational speed of measuring wheel hub through the speed that measurement is connected certain parts on the wheel hub; And protection all is based on the identification and the judgement of wind power generating set master control system, and realizes axial fan hub overspeed protection function through the mode of master control cut-out theft-resistant link chain.There is following defective in these protective measures:
1, the rate signal all about wheel hub all is not to derive from wheel hub itself, and parts on the wheel hub realize but be connected through test, and this is not the direct situation of wheel hub in fact;
2, these signals are controlled by master control system finally all, and the processing of protective signal is all carried out at the master control system place, when master control system lost efficacy, can not play effective protection to axial fan hub;
3, the signal (comprising protective signal) in the wheel hub all need be through cable transmission to master control, and the possibility that transmission course is effective causes and can not play effective protection to axial fan hub.
In the fan operation of reality, usually occur because the serious accident that the wheel hub overspeed governor switch lost efficacy and causes causes the fortune loss.
The model utility content
For overcoming above problem, the utility model provides a kind of wind generator unit wheel hub overspeed governor switch based on the dip sensor principle, solves because the problem of the serious accident that the inefficacy of wheel hub overspeed governor switch causes.
The technological scheme of the utility model is: based on the wind generator unit wheel hub overspeed governor switch of dip sensor principle, it mainly is made up of the control system that is arranged on the dip sensor on the wheel hub, the single-chip microcomputer that is connected with this dip sensor and be connected with this single-chip microcomputer.
Further, the input end of said single-chip microcomputer is connected with dip sensor, and its output terminal is connected with control system.
Further, said control system is that the blower fan master control system is or/and the wheel hub control system.
Further, the output terminal of said single-chip microcomputer is connected with the theft-resistant link chain node of blower fan master control system through passive contact.
Further, said single-chip microcomputer disposes tach signal output interface or alarm signal output interface, and this tach signal output interface or alarm signal output interface are connected with the wheel hub control system.
Further, said dip sensor is 360 degree dip sensors, and is arranged on the place, axle center of wheel hub.
The utility model compared with prior art has following advantage:
(1) can be totally independent of the master control system operation.Device is installed in the wheel hub, directly measures the actual speed of wheel hub, and can when wheel hub exceeds the speed limit, in wheel hub, directly initiatively cut off theft-resistant link chain, stops fan operation, thereby plays the effect of protection blower fan.
(2) can improve the reliability of axial fan hub overspeed protection greatly, fundamentally solve the variety of issue of axial fan hub protection, and can significantly not increase blower fan development, improvement, cost of production.Particularly, will reduce greatly and improve difficulty and cost the improvement of the existing blower fan that has moved, and effective.
Description of drawings
Fig. 1 is the structured flowchart of the utility model;
Fig. 2 is for using the position view of 360 degree dip sensors;
Fig. 3 is for using the phase diagram of 360 degree dip sensors;
Fig. 4 is for using the position view of four 90 degree dip sensors;
Fig. 5 is for using the phase diagram of four 90 degree dip sensors.
Embodiment
Working principle
Wind power generating set is when work, and wind-force drives axial fan hub and produces rotation.This device that is positioned at axial fan hub geometrical center position is followed axial fan hub and is rotated synchronously, goes out axial fan hub real-time inclination angle with respect to the horizontal plane through the dip sensor synchro measure.Dip sensor is transferred to SCM system with this signal.SCM system converses axial fan hub automatically and in the unit time, has rotated how many degree according to the corresponding relation of time and the variation of axial fan hub inclination angle, obtains the rotating speed of axial fan hub.By SCM system the real-time rotating speed of axial fan hub and the axial fan hub rated speed of initial setting up are compared again; When rotating speed surpasses rated speed, be judged to be the axial fan hub hypervelocity, the output interface through SCM system is transferred to control system with signal then.
Embodiment 1
Like Fig. 1, Fig. 2, shown in Figure 3; 360 degree dip sensors are fixed on the place, axle center of axial fan hub; Dip sensor is connected with the input end of single-chip microcomputer, and the output terminal of single-chip microcomputer connects a passive contact, and passive contact is connected with any theft-resistant link chain node of blower fan master control system.When state exchange appearred in the theft-resistant link chain node, the theft-resistant link chain disconnection of all can reporting to the police stopped fan operation.
Embodiment 2
Like Fig. 1, Fig. 4, shown in Figure 5; Is that even distribution the in center is fixed on the axial fan hub with four 90 degree dip sensors with the wheel hub axle center; Dip sensor is connected with the input end of single-chip microcomputer respectively, and the tach signal output interface of single-chip microcomputer is connected with the wheel hub control system.Like this, the tach signal output interface of single-chip microcomputer is input to the original wheel hub control system of blower fan through analog signals such as electric current, voltage or communication modes with information such as the real-time rotating speed of wheel hub, positions, thereby realizes the overspeed protection effect.
Embodiment 3
As shown in Figure 1; Itself and embodiment 1 are basic identical; Just the single-chip microcomputer output interface adopts the alarm signal output interface; Through analog signals such as electric current, voltage or communication modes information such as the real-time rotating speed of wheel hub, position are input to the original wheel hub control system of blower fan, thereby realize the overspeed protection effect.
Claims (6)
1. based on the wind generator unit wheel hub overspeed governor switch of dip sensor principle, it is characterized in that: it mainly is made up of the control system that is arranged on the dip sensor on the wheel hub, the single-chip microcomputer that is connected with this dip sensor and be connected with this single-chip microcomputer.
2. the wind generator unit wheel hub overspeed governor switch based on the dip sensor principle according to claim 1, it is characterized in that: the input end of said single-chip microcomputer is connected with dip sensor, and its output terminal then is connected with control system.
3. the wind generator unit wheel hub overspeed governor switch based on the dip sensor principle according to claim 2 is characterized in that: said control system is that the blower fan master control system is or/and the wheel hub control system.
4. the wind generator unit wheel hub overspeed governor switch based on the dip sensor principle according to claim 3 is characterized in that: the output terminal of said single-chip microcomputer is connected with the theft-resistant link chain node of blower fan master control system through passive contact.
5. the wind generator unit wheel hub overspeed governor switch based on the dip sensor principle according to claim 3; It is characterized in that: said single-chip microcomputer disposes tach signal output interface or alarm signal output interface, and this tach signal output interface or alarm signal output interface are connected with the wheel hub control system.
6. according to each described wind generator unit wheel hub overspeed governor switch based on the dip sensor principle of claim 1～5, it is characterized in that: said dip sensor is 360 degree dip sensors, and is arranged on the place, axle center of wheel hub.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203499297U CN202250603U (en) | 2011-09-19 | 2011-09-19 | Over-speed protection device based on principle of tilt sensor for hub of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203499297U CN202250603U (en) | 2011-09-19 | 2011-09-19 | Over-speed protection device based on principle of tilt sensor for hub of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250603U true CN202250603U (en) | 2012-05-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203499297U Expired - Fee Related CN202250603U (en) | 2011-09-19 | 2011-09-19 | Over-speed protection device based on principle of tilt sensor for hub of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250603U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216959A (en) * | 2015-11-09 | 2016-01-06 | 佛山市广工大数控装备技术发展有限公司 | Bicycle controlled brake power generation assembly |
| CN105240214A (en) * | 2015-11-13 | 2016-01-13 | 天津瑞源电气有限公司 | Safety circuit for overspeed protection of wind turbine generating set |
-
2011
- 2011-09-19 CN CN2011203499297U patent/CN202250603U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105216959A (en) * | 2015-11-09 | 2016-01-06 | 佛山市广工大数控装备技术发展有限公司 | Bicycle controlled brake power generation assembly |
| CN105240214A (en) * | 2015-11-13 | 2016-01-13 | 天津瑞源电气有限公司 | Safety circuit for overspeed protection of wind turbine generating set |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |