CN102011695A - Wind turbine pitch system - Google Patents
Wind turbine pitch system Download PDFInfo
- Publication number
- CN102011695A CN102011695A CN2010105817203A CN201010581720A CN102011695A CN 102011695 A CN102011695 A CN 102011695A CN 2010105817203 A CN2010105817203 A CN 2010105817203A CN 201010581720 A CN201010581720 A CN 201010581720A CN 102011695 A CN102011695 A CN 102011695A
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- Prior art keywords
- relay
- control box
- heavily loaded
- wind
- loaded plug
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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 invention provides a wind turbine pitch system, which comprises an overspeed relay, a first axis control cabinet, a second axis control cabinet and a third axis control cabinet, wherein the overspeed relay is used for receiving main control voltage signals and PLC (programmable logic controller) security signals in the wind turbine pitch system, and the first, second and third axis control cabinets are electrically connected with the overspeed relay and used for pitch starting; the overspeed relay comprises a first auxiliary contact and a second auxiliary contact; when the PLC security signals are input in the overspeed relay, the first and second auxiliary contacts are closed, the first, second and third axis control cabinets operate; and when the PLC security signals disappear, the first and second auxiliary contacts are broken off, and the first, second and third axis control cabinets stop operating. The wind turbine pitch system provided by the invention has the advantage that: because a safety chain control method is adopted, the protection effect is good.
Description
Technical field
The present invention relates to a kind of wind power plant, relate 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.
Summary of the invention
At the deficiencies in the prior art, the object of the invention is to provide a kind of improved wind-power generating variable oar system.
For solving the problems of the technologies described above, technological scheme of the present invention 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 invention has the beneficial effects as follows: adopt the controlling method of theft-resistant link chain in the wind generating variable-propeller control system of the present invention, the protection effect is good.
Description of drawings
Fig. 1 is the circuit diagram of the wind-power generating variable oar system of prior art.
Embodiment
Mode with example describes the specific embodiment of the present invention with reference to the accompanying drawings.
The present invention 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 present invention; 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 invention 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 invention 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 |
|---|---|---|---|
| CN2010105817203A CN102011695A (en) | 2010-12-10 | 2010-12-10 | Wind turbine pitch system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105817203A CN102011695A (en) | 2010-12-10 | 2010-12-10 | Wind turbine pitch system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102011695A true CN102011695A (en) | 2011-04-13 |
Family
ID=43841993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105817203A Pending CN102011695A (en) | 2010-12-10 | 2010-12-10 | Wind turbine pitch system |
Country Status (1)
| Country | Link |
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| CN (1) | CN102011695A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155354A (en) * | 2011-05-03 | 2011-08-17 | 国网电力科学研究院 | Safety chain control system for wind generating set |
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| CN102828907A (en) * | 2011-06-13 | 2012-12-19 | 苏州能健电气有限公司 | Pitch control system with PLC (programmable logic control) controller detection device |
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN114000973A (en) * | 2021-10-29 | 2022-02-01 | 重庆科凯前卫风电设备有限责任公司 | Wind turbine generator safety controller information transmission method based on digital output pulse |
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| CN2736554Y (en) * | 2004-01-12 | 2005-10-26 | 新疆金风科技股份有限公司 | Airscrew pitch variable control device |
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| CN101893855A (en) * | 2009-05-20 | 2010-11-24 | 天津瑞能电气有限公司 | Control method for guaranteeing safe operation of wind turbine |
| CN201982244U (en) * | 2010-12-10 | 2011-09-21 | 苏州能健电气有限公司 | Wind-power generation variable-propeller system |
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2010
- 2010-12-10 CN CN2010105817203A patent/CN102011695A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5210704A (en) * | 1990-10-02 | 1993-05-11 | Technology International Incorporated | System for prognosis and diagnostics of failure and wearout monitoring and for prediction of life expectancy of helicopter gearboxes and other rotating equipment |
| CN2736554Y (en) * | 2004-01-12 | 2005-10-26 | 新疆金风科技股份有限公司 | Airscrew pitch variable control device |
| CN101311527A (en) * | 2007-05-23 | 2008-11-26 | 连云港杰瑞电子有限公司 | Pitch control system of wind mill generator |
| CN101571104A (en) * | 2009-03-12 | 2009-11-04 | 苏州能健电气有限公司 | Safety chain control system |
| CN201372895Y (en) * | 2009-03-12 | 2009-12-30 | 苏州能健电气有限公司 | Safety chain control system |
| CN101893855A (en) * | 2009-05-20 | 2010-11-24 | 天津瑞能电气有限公司 | Control method for guaranteeing safe operation of wind turbine |
| CN201982244U (en) * | 2010-12-10 | 2011-09-21 | 苏州能健电气有限公司 | Wind-power generation variable-propeller system |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155354A (en) * | 2011-05-03 | 2011-08-17 | 国网电力科学研究院 | Safety chain control system for wind generating set |
| CN102828907A (en) * | 2011-06-13 | 2012-12-19 | 苏州能健电气有限公司 | Pitch control system with PLC (programmable logic control) controller detection device |
| CN102828907B (en) * | 2011-06-13 | 2014-04-30 | 苏州能健电气有限公司 | Pitch control system with PLC (programmable logic control) controller detection device |
| CN103061976A (en) * | 2011-10-20 | 2013-04-24 | 苏州能健电气有限公司 | Alternating current variable pitch and collecting pitch control system of wind generating set |
| CN102817778A (en) * | 2012-09-14 | 2012-12-12 | 国电联合动力技术有限公司 | Method and device for preventing PLC (programmable logic controller) control system of fan from crashing |
| CN114000973A (en) * | 2021-10-29 | 2022-02-01 | 重庆科凯前卫风电设备有限责任公司 | Wind turbine generator safety controller information transmission method based on digital output pulse |
| CN114000973B (en) * | 2021-10-29 | 2023-09-12 | 重庆科凯前卫风电设备有限责任公司 | Wind turbine generator safety controller information transmission method based on digital output pulse |
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Application publication date: 20110413 |