CN101571104A - Safety chain control system - Google Patents
Safety chain control system Download PDFInfo
- Publication number
- CN101571104A CN101571104A CNA2009100259462A CN200910025946A CN101571104A CN 101571104 A CN101571104 A CN 101571104A CN A2009100259462 A CNA2009100259462 A CN A2009100259462A CN 200910025946 A CN200910025946 A CN 200910025946A CN 101571104 A CN101571104 A CN 101571104A
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- 238000012544 monitoring process Methods 0.000 claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims description 13
- 230000009977 dual effect Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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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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- Wind Motors (AREA)
- Control Of Eletrric Generators (AREA)
Abstract
The invention discloses a safety chain control system, which comprises an overspeed monitoring relay and a safety relay which are connected between a control box and an axle box, wherein the overspeed monitoring relay detects whether a PLC control system has a fault; and the safety relay detects whether an I/O end of the PLC control system has input/output signals. The safety chain control system has the following advantages that: a double safety chain control system is adopted, the normal operation of the PLC control system must be met before a master control system sends a pitch-controlled starting signal, and a pitch-controlled system can be started, so the safety and the reliability of the system are ensured, and the work efficiency is improved.
Description
Technical field
The present invention relates to a kind of wind power plant, relate in particular to the electric and dual safety chain control system of software in a kind of wind-power paddle changing device.
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 energy development technology that developed, especially on the plateau, there is popularization and application widely in area such as coastal.
In the modern wind power generation system, variable pitch control unit is its very part and parcel, can be described as core cell.Because nature change of wind velocity, if make the blower fan can be steadily and rotate evenly and generate electricity, thereby that just must be efficiently and controls the blade angle accurately and control wind-receiving face, therefore based on above strict demand, must place safety operation control above the other things for becoming the oar control gear, prevent because the misoperation of variable pitch control unit causes whole system to break down, even damage system equipment, in the prior art as shown in Figure 1, master control system sends " EFC " actuating signal and gives variable blade control system, behind the lightning protection device-X1 in the control box, send signal in the axle box contactor-1K1,-1K1 coil gets electric, the normally opened contact closure of-1K1, and contactor-1K2 coil gets, 1K2 normally opened contact closure, like this, " RFG " signal that produces in the axle box just can be transferred to driver, and then drives the rotation of wind oar.As can be seen, when the PLC system broke down in the variable blade control system, this driver still can drive the wind oar and rotate from prior art.But because variable blade control system can produce alarm signal and cause whole variable blade control system to need shutdown inspection; and the shutdown of variable blade control system and start are very complicated and processes slowly; therefore be necessary to take duplicate protection in variable blade control system, promptly being electrically connected with signal of preliminary examination necessity transmitted before the variable blade control system start.
Summary of the invention
The objective of the invention is to solve the above-mentioned technical problem that prior art exists, the electric and dual safety chain control system of software in a kind of wind electricity change paddle control gear is provided, be used to reach variable pitch control unit Security and reliability requirement.
Purpose of the present invention is achieved through the following technical solutions:
A kind of safety chain control system, comprise the lightning protection device that is positioned at control box, described lightning protection device is connected to the signal output part of wind-power paddle changing device master control system, described master control system transmission " EFC " actuating signal is given axle box, be provided with contactor in the described axle box, this contactor receives after " EFC " actuating signal electricly and transmission " RFG " signal is given the driver that is attached thereto, and described safety chain control system comprises monitoring overspeed relay and safety relay;
The auxiliary normally opened contact of described monitoring overspeed relay is connected with lightning protection device, be used to receive " EFC " actuating signal of master control system transmission, described monitoring overspeed relay also comprises " house dog " signal receiving end, is connected with the signal output part of PLC control system;
First contact of described safety relay is connected with the auxiliary normally opened contact of monitoring overspeed relay, second contact of described safety relay is connected with " EFC " actuating signal output terminal of PLC control system, is used to receive " EFC " actuating signal of PLC control system transmission; Contactor in the 3rd contact of described safety relay and the axle box is connected.
Further, described safety relay has three the 3rd identical contacts, each contact all with one independently the contactor of axle box be connected.
Again further, " EFC " actuating signal of described PLC control system comprises that washout, backup battery do not have power supply signal in system.
Further, second contact of described safety relay is connected with the I/O end of PLC control system.
Whether beneficial effect of the present invention: detecting the PLC control system has fault if being mainly reflected in, whether PLC control system I/O end has input/output signal, prior art does not detect the input/output signal of PLC control system, not to PLC control system feedback trouble signal.And adopt dual safety chain control system, master control system give become the oar actuating signal before, must satisfy the normal operation of PLC control system after, variable blade control system could start, and has guaranteed the Security and the reliability of system, has improved working efficiency.
Description of drawings
Below in conjunction with accompanying drawing technical solution of the present invention is described further:
Fig. 1: the circuit diagram of prior art.
Fig. 2: the circuit diagram of safety chain control system of the present invention.
Embodiment
The present invention has disclosed a kind of safety chain control system, as shown in Figure 2, comprise lightning protection device-X1 of being positioned at control box and be positioned at two contactor-1K1 that axle box pinches ,-1K2, described lightning protection device-X1 is connected to the signal output part-0 of wind-power paddle changing device master control system, the same with prior art, described master control system transmission " EFC " actuating signal is given axle box, contactor-1K1 ,-1K2 receives after " EFC " actuating signal electricly and transmission " RFG " signal is given the driver that is attached thereto.
Unlike the prior art be: before master control system transmission " EFC " actuating signal is given axle box, must be through monitoring overspeed relay-1A1 and safety relay-1A2.
As shown in the figure, the auxiliary normally opened contact 13 of described monitoring overspeed relay-1A1 is connected with lightning protection device-X1, be used to receive " EFC " actuating signal of master control system transmission, described monitoring overspeed relay also comprises " house dog " signal receiving end 4, is connected with the signal output part of PLC control system; Described safety continues-and first contact 33 of 1A2 electrical equipment is connected with the auxiliary normally opened contact 14 of monitoring overspeed relay, the second contact S52 of described safety relay is connected with the I/O of PLC control system end, is used to receive " EFC " actuating signal of PLC control system transmission; Contactor-1K1 in the 3rd contact 14 of described safety relay and the axle box is connected.
Specifically describe the running of this preferred embodiment below.
Master control system sends " EFC " actuating signal and gives variable blade control system, behind the lightning protection device-X1 in the control box, " EFC " actuating signal enters the auxiliary normally opened contact of monitoring overspeed relay, when " house dog " signal that comes from the PLC control system just often, trigger monitoring overspeed relay-1A1 work, the normally opened contact closure of monitoring overspeed relay-1A1." house dog " signal mainly is whether detection PLC control system work operation is normal, and whether fault is arranged.When the PLC control system had fault or quits work, monitoring overspeed relay-1A1 quit work; The S52 contact that comes from " EFC " actuating signal triggering safety relay of PLC control system, " EFC " actuating signal of PLC control system comprises that washout, backup battery do not have power supply signal in system in the present embodiment, when this " EFC " actuating signal just often, make safety relay-1A2 operation, the normally opened contact closure.When monitoring overspeed relay-1A1 and safety relay-1A2 proper functioning, " EFC " actuating signal that master control system sends gets contactor-1K1 coil, the normally opened contact closure, contactor-1K2 coil gets, the normally opened contact closure, like this, " RFG " signal that produces in the axle box just can be transferred to driver, and then drives the rotation of wind oar.
The control theory that safety chain control system of the present invention has adopted electrical control to combine with software control.Article two, be in series and form the chain type safety system, so be called theft-resistant link chain.Whether the monitoring overspeed relay detects the PLC control system fault, and whether safety relay detects PLC control system I/O end input/output signal.If it is good or when going offline that certain of PLC control system inputs or outputs terminal connections, perhaps CPU damages etc., the PLC control system can't be given trigger signal of safety relay, cause safety relay to work, normally opened contact disconnects, thereby the actuating signal " EFC " that causes master control to send can't send driver to.
Say that from another point of view technology of the present invention has been avoided also having strengthened the stability and the reliability of system owing to three adverse consequencess of rotating the asynchronous wind-driven generator moment unbalances that cause of possibility.Simultaneously, safety relay is taked modular design, and it is convenient to change.
Claims (4)
1. safety chain control system, comprise the lightning protection device that is positioned at control box, described lightning protection device is connected to the signal output part of wind-power paddle changing device master control system, described master control system transmission " EFC " actuating signal is given axle box, be provided with contactor in the described axle box, this contactor receives after " EFC " actuating signal electricly and transmission " RFG " signal is given the driver that is attached thereto, and it is characterized in that: described safety chain control system comprises monitoring overspeed relay and safety relay
The auxiliary normally opened contact of described monitoring overspeed relay is connected with lightning protection device, be used to receive " EFC " actuating signal of master control system transmission, described monitoring overspeed relay also comprises " house dog " signal receiving end, is connected with the signal output part of PLC control system;
First contact of described safety relay is connected with the auxiliary normally opened contact of monitoring overspeed relay, second contact of described safety relay is connected with " EFC " actuating signal output terminal of PLC control system, is used to receive " EFC " actuating signal of PLC control system transmission; Contactor in the 3rd contact of described safety relay and the axle box is connected.
2. safety chain control system according to claim 1 is characterized in that: described safety relay has three the 3rd identical contacts, each contact all with one independently the contactor of axle box be connected.
3. safety chain control system according to claim 1 is characterized in that: " EFC " actuating signal of described PLC control system comprises that washout, backup battery do not have power supply signal in system.
4. safety chain control system according to claim 1 is characterized in that: second contact of described safety relay is connected with the I/O of PLC control system end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100259462A CN101571104B (en) | 2009-03-12 | 2009-03-12 | Safety chain control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100259462A CN101571104B (en) | 2009-03-12 | 2009-03-12 | Safety chain control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101571104A true CN101571104A (en) | 2009-11-04 |
| CN101571104B CN101571104B (en) | 2011-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100259462A Expired - Fee Related CN101571104B (en) | 2009-03-12 | 2009-03-12 | Safety chain control system |
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| Country | Link |
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| CN (1) | CN101571104B (en) |
Cited By (9)
| 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 |
| CN102011694A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Variable-pitch control system |
| CN102418662A (en) * | 2011-12-27 | 2012-04-18 | 东方电气集团东方汽轮机有限公司 | Safety operation control system of wind driven generator |
| 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 |
| CN103226334A (en) * | 2013-04-28 | 2013-07-31 | 东方电气集团东方汽轮机有限公司 | Hardware safety chain control method in upgrade process of control system of wind generating set |
| CN104460656A (en) * | 2014-11-13 | 2015-03-25 | 湖南世优电气股份有限公司 | Comprehensive testing platform of variable pitch control system of wind generating set and testing method thereof |
| CN106468242A (en) * | 2015-08-21 | 2017-03-01 | 上海昱章电气成套设备有限公司 | Safety chain of wind power pitch system and wind power pitch system |
| WO2022068255A1 (en) * | 2020-09-29 | 2022-04-07 | 北京金风科创风电设备有限公司 | Wind power generating set safety chain system, monitoring method, variable pitch controller and wind power generating set |
-
2009
- 2009-03-12 CN CN2009100259462A patent/CN101571104B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102011694A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Variable-pitch control system |
| CN102011694B (en) * | 2010-12-10 | 2012-07-04 | 苏州能健电气有限公司 | Variable-pitch control system |
| CN102011695A (en) * | 2010-12-10 | 2011-04-13 | 苏州能健电气有限公司 | Wind turbine pitch system |
| 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 |
| 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 |
| CN102418662A (en) * | 2011-12-27 | 2012-04-18 | 东方电气集团东方汽轮机有限公司 | Safety operation control system of wind driven generator |
| CN102418662B (en) * | 2011-12-27 | 2013-11-27 | 东方电气集团东方汽轮机有限公司 | Safety operation control system of wind driven generator |
| 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 |
| CN103226334A (en) * | 2013-04-28 | 2013-07-31 | 东方电气集团东方汽轮机有限公司 | Hardware safety chain control method in upgrade process of control system of wind generating set |
| CN103226334B (en) * | 2013-04-28 | 2015-11-18 | 东方电气集团东方汽轮机有限公司 | Hardware security chain control method in a kind of wind turbine control system escalation process |
| CN104460656A (en) * | 2014-11-13 | 2015-03-25 | 湖南世优电气股份有限公司 | Comprehensive testing platform of variable pitch control system of wind generating set and testing method thereof |
| CN106468242A (en) * | 2015-08-21 | 2017-03-01 | 上海昱章电气成套设备有限公司 | Safety chain of wind power pitch system and wind power pitch system |
| CN106468242B (en) * | 2015-08-21 | 2019-05-14 | 上海昱章电气成套设备有限公司 | Safety chain of wind power pitch system and wind power pitch system |
| WO2022068255A1 (en) * | 2020-09-29 | 2022-04-07 | 北京金风科创风电设备有限公司 | Wind power generating set safety chain system, monitoring method, variable pitch controller and wind power generating set |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101571104B (en) | 2011-05-18 |
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Effective date of registration: 20220629 Address after: 215400 No. 17, gugang Road, Chengxiang Industrial Park, Taicang City, Suzhou City, Jiangsu Province Patentee after: JIANGSU RUIXIN UNITED AUTOMOBILE TECHNOLOGY GROUP Co.,Ltd. Address before: 215122 No. 80, Shuang Ma Street, Suzhou Industrial Park, Jiangsu, China Patentee before: REnergy Electric (Suzhou) Co.,Ltd. |
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Effective date of registration: 20220725 Address after: 215131 room 908, floor 9, building 5 (Building 1), No. 2266 Taiyang Road, high speed rail new town, Xiangcheng District, Suzhou, Jiangsu Province Patentee after: Suzhou xinnengjian Electric Co.,Ltd. Address before: 215400 No. 17, gugang Road, Chengxiang Industrial Park, Taicang City, Suzhou City, Jiangsu Province Patentee before: JIANGSU RUIXIN UNITED AUTOMOBILE TECHNOLOGY GROUP Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 |