CN201982244U - Wind-power generation variable-propeller system - Google Patents
Wind-power generation variable-propeller system Download PDFInfo
- Publication number
- CN201982244U CN201982244U CN2010206519828U CN201020651982U CN201982244U CN 201982244 U CN201982244 U CN 201982244U CN 2010206519828 U CN2010206519828 U CN 2010206519828U CN 201020651982 U CN201020651982 U CN 201020651982U CN 201982244 U CN201982244 U CN 201982244U
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- CN
- China
- Prior art keywords
- control box
- wind
- relay
- heavily loaded
- auxiliary contact
- 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
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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
Abstract
The utility model provides a wind-power generation variable-propeller system, which comprises an overspeed relay for receiving master control voltage signals and PLC security signals within the wind-power generation variable-propeller system, a first axle control box, a second axle control box and a third axle control box electrically connected with the overspeed relay for starting a variable propeller. The overspeed relay comprises a first auxiliary contact and a second auxiliary contact. When PLC security signals are inputted into the overspeed relay, the first auxiliary contact and the second auxiliary contact are closed and the first axle control box, the second axle control box and the third axle control box are running. When PLC security signals are inputted into the overspeed relay, the first auxiliary contact and the second auxiliary contact are closed and the first axle control box, the second axle control box and the third axle control box stop running. Safety chain control method is adopted by the wind-power generation variable-propeller system of the utility model, thus is good in protection effect.
Description
Technical field
The utility model relates to a kind of wind power plant, relates in particular to a kind of wind-power generating variable oar system.
Background technique
Along with non-renewable energy resources face exhausted awkward situation at world wide, for satisfying industrialized production and the human lives is required, people are to the concern of solar energy, wind-force, these renewable energy sourcess of waterpower and utilize day by day and promote.Wherein, wind-power electricity generation is a kind of relatively ripe, higher energy development technology of conversion efficiency that developed, especially on the plateau, there is popularization and application widely in area such as coastal.
Wind-power electricity generation is very high to safe requirement.Only is the conduct protection of adopting some simple 24V through connect signals mostly in the at present existing wind-power generating variable oar system, effect is relatively poor when running into situation such as 24V short circuit.
The model utility content
At the deficiencies in the prior art, the utility model purpose is to provide a kind of improved wind-power generating variable oar system.
For solving the problems of the technologies described above, the technical solution of the utility model is achieved in that
A kind of wind-power generating variable oar system, wherein, described wind-power generating variable oar system comprises that one is used to receive the overspeed relay of master control voltage signal and described wind generating variable-propeller internal system PLC safety signal, and electrically connect described overspeed relay and be used to start first control box that becomes oar, second control box and the 3rd control box, described overspeed relay comprises first auxiliary contact and second auxiliary contact, after described PLC safety signal is imported described overspeed relay, described first auxiliary contact and the second auxiliary contact closure, described first control box, second control box, the 3rd control box operation, after described PLC safety signal disappears, described first auxiliary contact and second auxiliary contact disconnect, described first control box, second control box, the 3rd control box is out of service.
As a further improvement on the present invention, described wind-power generating variable oar system also comprises heavily loaded plug and overvoltage protector, behind described master control voltage signal described heavily loaded plug of process and the overvoltage protector, inputs to described overspeed relay.
As a further improvement on the present invention, described master control voltage signal is+the 24VDC signal.
As a further improvement on the present invention, described PLC safety signal is pulse or square wave or analog amount.
As a further improvement on the present invention, described first control box comprises the first heavily loaded plug and first relay in parallel with the described first heavily loaded plug; Described second control box comprises the second heavily loaded plug and second relay in parallel with the described second heavily loaded plug; Described the 3rd control box comprises the 3rd heavily loaded plug and three relay in parallel with the described the 3rd heavily loaded plug; After described PLC safety signal is imported described overspeed relay, the described first heavily loaded plug, the second heavily loaded plug, the 3rd heavily loaded plug closure, described first relay, second relay, the 3rd relay adhesive.
Compared with prior art, the beneficial effects of the utility model are: adopt the controlling method of theft-resistant link chain in the wind generating variable-propeller control system of the present utility model, the protection effect is good.
Description of drawings
Fig. 1 is the circuit diagram of wind-power generating variable oar system of the present utility model.
Embodiment
Mode with example describes embodiment of the present utility model with reference to the accompanying drawings.
The utility model has disclosed a kind of wind-power generating variable oar system.
As shown in Figure 1; need to increase an overspeed relay 10 in the wind-power generating variable oar system in the utility model; from master control+the 24VDC signal voltage enters overspeed relay 10 by heavily loaded plug 11 and overvoltage protector 12; the safety signal that described overspeed relay 10 is accepted from pitch-controlled system inside PLC; this safety signal can be pulse; square wave, analog amount various ways such as (as 0--± 10V, 4--20mA or 0--20mA).Under the normal condition, pulse signal input overspeed relay 10 is arranged, first auxiliary contact 13 of overspeed relay 10, second auxiliary contact, 14 closures, like this master control+the 24VDC signal voltage just passes through G1, G2, G3 heavy duty plug is input to three axle control boxs respectively, make first in the control box relay 1K, the relay 2K in second control box and the relay 3K in the 3rd control box get electric adhesive, 1K, 2K and 3K get the precondition of electric adhesive as the operation of wind-power generating variable oar system axle control box.In case if pitch-controlled system PLC power down, deadlock; or the signal of input pitch-controlled system PLC has fault; perhaps master control system sends a signal to wind-power generating variable oar system PLC and requires shutdown; pulse signal from PLC just disappears so; auxiliary contact 13 in the overspeed relay 10; 14 flick; like this from master control+the 24VDC signal voltage just disconnects; work as 1K; when 2K and 3K can't accept this signal; described first control box, second control box, the 3rd control box are out of service, make the pitch-controlled system security of operation, thereby reach the purpose of the whole blower fan of protection.
Although be the example purpose, preferred implementation of the present utility model is disclosed, but those of ordinary skill in the art will recognize that under situation about not breaking away from by the disclosed scope and spirit of the present utility model of appending claims, various improvement, increase and replacement are possible.
Claims (5)
1. wind-power generating variable oar system, it is characterized in that, described wind-power generating variable oar system comprises that one is used to receive the overspeed relay of master control voltage signal and described wind generating variable-propeller internal system PLC safety signal, and electrically connect described overspeed relay and be used to start first control box that becomes oar, second control box and the 3rd control box, described overspeed relay comprises first auxiliary contact and second auxiliary contact, after described PLC safety signal is imported described overspeed relay, described first auxiliary contact and the second auxiliary contact closure, described first control box, second control box, the 3rd control box operation, after described PLC safety signal disappears, described first auxiliary contact and second auxiliary contact disconnect, described first control box, second control box, the 3rd control box is out of service.
2. wind-power generating variable oar system as claimed in claim 1; it is characterized in that; described wind-power generating variable oar system also comprises heavily loaded plug and overvoltage protector, behind described master control voltage signal described heavily loaded plug of process and the overvoltage protector, inputs to described overspeed relay.
3. wind-power generating variable oar system as claimed in claim 2 is characterized in that, described master control voltage signal is+the 24VDC signal.
4. wind-power generating variable oar system as claimed in claim 1 is characterized in that, described PLC safety signal is pulse or square wave or analog amount.
5. wind-power generating variable oar system as claimed in claim 1 is characterized in that, described first control box comprises the first heavily loaded plug and first relay in parallel with the described first heavily loaded plug; Described second control box comprises the second heavily loaded plug and second relay in parallel with the described second heavily loaded plug; Described the 3rd control box comprises the 3rd heavily loaded plug and three relay in parallel with the described the 3rd heavily loaded plug; After described PLC safety signal is imported described overspeed relay, the described first heavily loaded plug, the second heavily loaded plug, the 3rd heavily loaded plug closure, described first relay, second relay, the 3rd relay adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206519828U CN201982244U (en) | 2010-12-10 | 2010-12-10 | Wind-power generation variable-propeller system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206519828U CN201982244U (en) | 2010-12-10 | 2010-12-10 | Wind-power generation variable-propeller system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201982244U true CN201982244U (en) | 2011-09-21 |
Family
ID=44609706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206519828U Expired - Lifetime CN201982244U (en) | 2010-12-10 | 2010-12-10 | Wind-power generation variable-propeller system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201982244U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011695A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Wind turbine pitch system |
-
2010
- 2010-12-10 CN CN2010206519828U patent/CN201982244U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011695A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Wind turbine pitch system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |
|
| CX01 | Expiry of patent term |