CN202417820U - Wind driven generator safety control device - Google Patents
Wind driven generator safety control device Download PDFInfo
- Publication number
- CN202417820U CN202417820U CN2012200177845U CN201220017784U CN202417820U CN 202417820 U CN202417820 U CN 202417820U CN 2012200177845 U CN2012200177845 U CN 2012200177845U CN 201220017784 U CN201220017784 U CN 201220017784U CN 202417820 U CN202417820 U CN 202417820U
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- China
- Prior art keywords
- driven generator
- switch
- emergency stop
- safety
- wind
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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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Abstract
The utility model discloses a wind driven generator safety control device, which comprises a safety relay, wherein all input nodes on a safety chain of a wind driven generator are connected in series in sequence to a first input terminal of the safety relay to form a first input loop; a yaw control relay of the wind driven generator is connected to the first input terminal of the safety relay to form a first output loop; and a tower bottom reset switch of the wind driven generator and an engine room position switch are connected in series to a reset end of the safety relay to form a reset loop. By the wind driven generator safety control device, three safety modules of Beckhoff are replaced by the safety relay so as to form a real hardware safety chain loop; and a power failure protection strategy is adopted, namely various nodes are normally closed under normal conditions, so that if any node is abnormal, the nodes are disconnected, and the whole input loop is immediately disconnected. The wind driven generator safety control device is high in stability, high in reliability and low in cost.
Description
Technical field
The utility model relates to wind-driven generator, is specifically related to the wind-driven generator safety control.
Background technique
Wind-driven generator (blower fan) is a kind ofly to utilize the pneumatic equipment blades made capturing wind energy, and is converted into rotating mechanical energy, so drive generator for electricity generation can source machine.The safety control of general blower fan is all adopted the duplicate protection strategy, i.e. software protection and hardware protection.Be that 3 big security modules (KL1904, KL2904 and KL6904) through times good fortune realize at present based on the hardware protection strategy of times blower fan of good fortune controller.Promptly with KL1904 as load module, all theft-resistant link chain nodes all will be linked the KL1904 module, carry out logic operation through the KL6904 module then, carry out the output of theft-resistant link chain at last through KL2904.Communication between them realizes through optical fiber and Profibus bus.Be that theft-resistant link chain node signal on the cabin earlier converts optical signal to through photoelectric conversion module; By Optical Fiber Transmission at the bottom of the tower; Again convert electrical signal to through the photoelectric conversion module at the bottom of the tower again, and the communication between each slave station and the main website realizes through the Profibus bus.This safety protection strategy mainly contains following defective:
(1) signal is interfered poor stability easily through optical fiber and profibus bus transfer.
(2) the security logic computing module KL6904 by times good fortune carries out logical operation, is not hardware protection loop truly, and reliability is not high.
(3) cost is higher.
The model utility content
The utility model technical problem to be solved is that solution wind-driven generator safety control is interfered easily, reliability is not high, the cost problem of higher.
In order to solve the problems of the technologies described above; The technological scheme that the utility model adopted provides a kind of wind-driven generator safety control; Comprise safety relay; First input end that is connected to said safety relay after all input nodes on the wind-driven generator theft-resistant link chain are connected is successively formed first input circuit; The driftage control relay of wind-driven generator is connected to first Out let of said safety relay and forms first output loop, and reset switch and cabin get the reset terminal that is connected to said safety relay after the bit switch series connection and form the loop that resets at the bottom of the tower of wind-driven generator.
In such scheme; All input nodes on the said wind-driven generator theft-resistant link chain comprise emergency stop button at the bottom of the tower, plc emergency stop switch, cabin emergency stop button, become the oar emergency stop switch, turn round and pull emergency stop switch, first overrun emergency stop switch, second overrun emergency stop switch, vibration emergency stop switch and the long-range emergency stop button in cabin, and above-mentioned each button or switch are the Normally closed type switch.
In such scheme; Emergency stop button and cabin emergency stop button are ganged switch at the bottom of the said tower; Wherein a switch is connected in first input circuit; Another joins second input terminal that is connected to said safety relay after switch is connected successively and forms second input circuit, and the change slurry control relay of wind-driven generator is connected to second Out let of said safety relay and forms second output loop.
In such scheme, said change oar emergency stop switch is formed by first, second switch in parallel.
The utility model; Relay safe in utilization replaces 3 big security modules of times good fortune to form hardware security chain loop truly; Adopt the loss protecting strategy, promptly each node all is normally closed under the normal condition, and is unusual if any one node occurs; Node breaks off, and then whole input circuit breaks off immediately.Stability is high, good reliability, and cost is low.
Description of drawings
Fig. 1 is the control relay schematic representation of the utility model.
Embodiment
The utility model, relay safe in utilization replace 3 big security modules of times good fortune controller to form hardware security chain loop truly, and stability is high, good reliability, and cost is low.Below in conjunction with accompanying drawing the utility model is made detailed explanation.
As shown in Figure 1; The wind-driven generator safety control that the utility model provides; Main through safety relay K12 realization control; Safety relay K12 has first, second two input terminals (S11, S12), (S21, S22); First, second two Out lets (13,14), (23,24) and a reset terminal (S33, S34), the sub-S11 of first input end, the S12 that are connected to safety relay K12 after all the input nodes on the wind-driven generator theft-resistant link chain are connected successively form first input circuit, and the driftage control relay 346K3 of wind-driven generator is connected to first Out let 13,14 of safety relay K12 and forms first output loop; Reset switch 11S3 and cabin get the reset terminal S33, the S34 that are connected to safety relay K12 after the bit switch 347S2 series connection and form the loop that resets at the bottom of the tower of wind-driven generator; Its effect is after having got rid of the theft-resistant link chain fault of blower fan, presses corresponding SR and makes theft-resistant link chain closed again, and blower fan gets into normal working.
All input nodes on the wind-driven generator theft-resistant link chain comprise:
Emergency stop button 13S1 at the bottom of the tower: it is an emergency stop button, breaks off when pressing down, and is closed when pulling out, and is to be in normally off under the normal condition.When blower fan occurs unusually, can take emergency stop button 13S1 at the bottom of the tower, make the blower fan emergency shutdown, the safety of protection blower fan.
PLC emergency stop switch 13K8: it is the theft-resistant link chain node of a monitoring times good fortune controller and blower fan control program; Be in normally off under the normal condition; When times good fortune controller or blower fan control program occur when unusual, PLC emergency stop switch 13K8 breaks off, and theft-resistant link chain is broken off; The blower fan emergency shutdown, the safety of protection blower fan.
Cabin emergency stop button 345S1: its effect is similar to emergency stop button 13S1 at the bottom of the tower, unique difference be one at the bottom of tower, one in the cabin.
Becoming the oar emergency stop switch is made up of two related first, second switch 359K7,359K8 that are provided with: the first switch 359K7 is in normally off under the normal condition, and unusual when the wheel hub appearance, the first switch 359K7 breaks off, blower fan emergency shutdown, the safety of protection blower fan.Second switch 359K8 is the bypass of the first switch 359K7, becomes the oar emergent stop signal and is different from other safety chain signal, and it only is at theft-resistant link chain could be closed under the normal state; Therefore need roadside road signal, when reset switch 11S3 and cabin got bit switch 347S2 at the bottom of pressing tower, second switch 359K8 was closed; If this time, other nodes of theft-resistant link chain all were in closed state; Then the whole piece theft-resistant link chain is closed, and the first switch 359K7 is closed, second switch 359K8 automatic disconnection after 5 seconds; Because at this time the first switch 359K7 is closed, theft-resistant link chain is in the normally closed state.
Turn round and pull emergency stop switch 360K7: blower fan is when normal operation, and all in driftage, the time has been grown and will occur turning round pulling, and at this time will shut down and untie the mooring rope, in order to avoid power cable is twisted into two parts all the time.Turn round under the normal condition and pull emergency stop switch 360K7 and be in normally off, pull angle when surpassing 900 ° when turning round of blower fan, turn round and pull emergency stop switch 360K7 and break off, theft-resistant link chain breaks off, the blower fan emergency shutdown.
First, second overrun emergency stop switch 360K3,360K6:360K3 and 360K6 are the two-way emergent stop signals of overrunning, and under the normal condition, the wheel speed of blower fan is controlled at below per minute 17.4 changes; The emergency stop switch of overrunning is normally closed; If Control Failure, when rotating speed rose rapidly, 360K3 and 360K6 will break off; Theft-resistant link chain breaks off, the blower fan emergency shutdown.
Vibration emergency stop switch 345S7: the vibration emergent stop signal is normally closed under the normal condition.If blower fan occurs unusual, rock very severity, will trigger the vibration emergent stop signal, vibration emergency stop switch 345S7 breaks off, and theft-resistant link chain breaks off, the blower fan emergency shutdown.
The long-range emergency stop button 1S2 in cabin: be similar to emergency stop button 13S1 and cabin emergency stop button 345S1 at the bottom of the tower; Difference is that the long-range emergency stop button 1S2 in cabin is arranged on the Direct box; When blower fan occurs when unusual, the commissioning staff can hold Direct box and press the long-range emergency stop button 1S2 in cabin in any position in cabin, and theft-resistant link chain is broken off; The blower fan emergency shutdown is guaranteed personal safety.
Above-mentioned each button or switch are the Normally closed type switch.
The present technique scheme adopts the loss protecting strategy, and promptly each node on the theft-resistant link chain all is normally closed under the normal condition, and unusual if any one node occurs, then switch breaks off, and whole input circuit breaks off immediately.In order further to improve the reliability of blower fan theft-resistant link chain control; Extract from first input circuit especially that emergency stop button 13S1 and cabin emergency stop button 345S1 form the second road input circuit at the bottom of the tower; Concrete scheme is: emergency stop button 13S1 and cabin emergency stop button 345S1 are ganged switch at the bottom of the tower; Wherein a switch is connected in first input circuit; Another joins the second input terminal S21, the S22 that are connected to safety relay after switch is connected successively and forms second input circuit, and the effect of this design is in order to prevent the misoperation of remote reset, and the field maintenance personnel have only the fault of having got rid of all security nodes; The theft-resistant link chain that just can reset has at the scene increased Security greatly.The change slurry control relay 346K6 of wind-driven generator is connected to second Out let 23,24 of safety relay K12 and forms second output loop.
When theft-resistant link chain is under the closed state, first Out let 13,14 and second Out let, 23,24 closures, driftage control relay 346K3 with become slurry control relay 346K6 and get electric adhesive; Driftage and change oar loop are normal, otherwise when theft-resistant link chain breaks off, first Out let 13,14 and second Out let 23; 24 break off; Driftage control relay 346K3 and change slurry control relay 346K6 dead electricity are broken off, yaw loop and the loop disconnection of change oar, and blower fan stops driftage; And through becoming oar storage battery feathering to 91 °, blower fan is anxious shuts down.
In sum, the utility model directly connects to form hardware security chain loop truly with electric wire, has avoided the interference of communication; Stability has improved greatly; With 3 big modules of safety relay replacement times good fortune controller, avoided the logical operation of module, reliability has strengthened greatly; And used after the safety relay, cost greatly reduces.
The utility model is not limited to above-mentioned preferred forms, and anyone should learn the structural change of under the enlightenment of the utility model, making, every with the utlity model has identical or close technological scheme, all fall within the protection domain of the utility model.
Claims (4)
1. wind-driven generator safety control; It is characterized in that; Comprise safety relay; First input end that is connected to said safety relay after all input nodes on the wind-driven generator theft-resistant link chain are connected is successively formed first input circuit; The driftage control relay of wind-driven generator is connected to first Out let of said safety relay and forms first output loop, and reset switch and cabin get the reset terminal that is connected to said safety relay after the bit switch series connection and form the loop that resets at the bottom of the tower of wind-driven generator.
2. wind-driven generator safety control as claimed in claim 1; It is characterized in that; All input nodes on the said wind-driven generator theft-resistant link chain comprise emergency stop button at the bottom of the tower, plc emergency stop switch, cabin emergency stop button, become the oar emergency stop switch, turn round and pull emergency stop switch, first overrun emergency stop switch, second overrun emergency stop switch, vibration emergency stop switch and the long-range emergency stop button in cabin, and above-mentioned each button or switch are the Normally closed type switch.
3. wind-driven generator safety control as claimed in claim 2; It is characterized in that; Emergency stop button and cabin emergency stop button are ganged switch at the bottom of the said tower; Wherein a switch is connected in first input circuit, and another joins second input terminal that is connected to said safety relay after switch is connected successively and forms second input circuit, and the change slurry control relay of wind-driven generator is connected to second Out let of said safety relay and forms second output loop.
4. wind-driven generator safety control as claimed in claim 2 is characterized in that, said change oar emergency stop switch is formed by first, second switch in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177845U CN202417820U (en) | 2012-01-16 | 2012-01-16 | Wind driven generator safety control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200177845U CN202417820U (en) | 2012-01-16 | 2012-01-16 | Wind driven generator safety control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417820U true CN202417820U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200177845U Expired - Fee Related CN202417820U (en) | 2012-01-16 | 2012-01-16 | Wind driven generator safety control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417820U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865190A (en) * | 2012-10-19 | 2013-01-09 | 国电南瑞科技股份有限公司 | Safety protection device suitable for hydraulic pitch variation system |
| CN103557116A (en) * | 2013-09-30 | 2014-02-05 | 天津瑞能电气有限公司 | Hard-wire constructed safety protection device of wind generating set |
| CN110630439A (en) * | 2019-09-24 | 2019-12-31 | 重庆科凯前卫风电设备有限责任公司 | Safety control system and control method of yaw motor |
| CN113110185A (en) * | 2021-04-19 | 2021-07-13 | 深圳市车百路科技有限公司 | Intelligent monitoring equipment system for new energy operation and maintenance management |
-
2012
- 2012-01-16 CN CN2012200177845U patent/CN202417820U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102865190A (en) * | 2012-10-19 | 2013-01-09 | 国电南瑞科技股份有限公司 | Safety protection device suitable for hydraulic pitch variation system |
| CN102865190B (en) * | 2012-10-19 | 2014-09-03 | 国电南瑞科技股份有限公司 | Safety protection device suitable for hydraulic pitch variation system |
| CN103557116A (en) * | 2013-09-30 | 2014-02-05 | 天津瑞能电气有限公司 | Hard-wire constructed safety protection device of wind generating set |
| CN103557116B (en) * | 2013-09-30 | 2015-12-09 | 天津瑞能电气有限公司 | The safety device for wind generating set that a kind of hardwire is built |
| CN110630439A (en) * | 2019-09-24 | 2019-12-31 | 重庆科凯前卫风电设备有限责任公司 | Safety control system and control method of yaw motor |
| CN113110185A (en) * | 2021-04-19 | 2021-07-13 | 深圳市车百路科技有限公司 | Intelligent monitoring equipment system for new energy operation and maintenance management |
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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: 20120905 Termination date: 20200116 |
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| CF01 | Termination of patent right due to non-payment of annual fee |