CN201835984U - Highly-reliable pitch control device - Google Patents
Highly-reliable pitch control device Download PDFInfo
- Publication number
- CN201835984U CN201835984U CN201020244664XU CN201020244664U CN201835984U CN 201835984 U CN201835984 U CN 201835984U CN 201020244664X U CN201020244664X U CN 201020244664XU CN 201020244664 U CN201020244664 U CN 201020244664U CN 201835984 U CN201835984 U CN 201835984U
- Authority
- CN
- China
- Prior art keywords
- oars
- driver
- motor
- limit switch
- power supply
- 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 - Fee Related
Links
Images
Classifications
-
- 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 relates to a highly-reliable pitch control device, which comprises a main power source, a standby power source, a driver, a motor, a transmission mechanism, a vane and a limit switch, wherein an encoder is arranged on the motor, the main power source is connected with the driver, the driver is connected with the motor, the motor is connected with the transmission mechanism, the transmission mechanism is connected with the vane, the standby power source is connected with the driver through a first change-over switch, the standby power source is connected with the motor through a second change-over switch, the encoder is connected with the driver, and the limit switch is arranged behind the pitch control position of the vane. Compared with the prior art, the utility model has the advantages that all sorts of emergency situations are considered in advance, perfect functions are achieved and the reliability and the safety are improved.
Description
Technical field
The utility model relates to a kind of control system of putting away the oars, and especially relates to a kind of control gear of putting away the oars of high reliability.
Background technique
The control system of putting away the oars of pitch-variable system is the main braking mechanism of wind-driven generator, and it provides powerful guarantee for blower fan safety, shutdown stably.Therefore, the put away the oars reliability of control has material impact to the Security of blower fan.
Problems such as it is lower that the control of putting away the oars of present most of pitch-controlled systems exists level of security, and control mode is too concentrated have influenced the reliability that blower fan is put away the oars.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of consideration various emergency case for the defective that overcomes above-mentioned prior art existence, Perfect in shape and function, the control gear of putting away the oars of safe high reliability.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of control gear of putting away the oars of high reliability, it is characterized in that, comprise primary power supply, standby power supply, driver, motor, driving mechanism, blade, limit switch, described motor is provided with encoder, described primary power supply is connected with driver, described driver is connected with motor, described motor is connected with driving mechanism, described driving mechanism is connected with blade, described standby power supply is connected with driver by first diverter switch, described standby power supply is connected with motor by second diverter switch, and described encoder is connected with driver, and described limit switch is located at the blade back, position of putting away the oars.
Also comprise redundant limit switch, this redundancy limit switch is located at the back of limit switch.
Line between described limit switch and the blade rotation axle center, and the angle between the blade is 0.5 °～3 °.
Line between described redundant limit switch and the blade rotation axle center, and the angle of line is 2 °～5 ° between limit switch and the blade rotation axle center.
Compared with prior art, the utility model adopts the design of three level securities, adopts corresponding level of security at different failure conditions, can effectively finish the function of putting away the oars; Simultaneously, system adopts three independent control modes, effectively reduces the risk that control mechanism is made mistakes, greatly the reliability and the integrity of the control system of putting away the oars of Ti Gaoing.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, a kind of control gear of putting away the oars of high reliability, comprise primary power supply 1, standby power supply 3, driver 2, motor 4, driving mechanism 6, blade 7, limit switch 8, described motor 4 is provided with encoder 5, described primary power supply 1 is connected with driver 2, described driver 2 is connected with motor 4, described motor 4 is connected with driving mechanism 6, described driving mechanism 6 is connected with blade 7, described standby power supply 3 is connected with driver 2 by first diverter switch 9, described standby power supply 3 is connected with motor 4 by second diverter switch 10, and described encoder 5 is connected with driver 2, and described limit switch 8 is located at blade 7 back, position of putting away the oars.
The utility model adopts the design of three level securities, and every grade of different system's control of design consideration requires to finish the operation of putting away the oars accordingly.This design method is considered various emergency case, Perfect in shape and function, reliability and safe.
1) normally put away the oars:
The system that is meant that normally puts away the oars carries out normal stopping process as required under the situation that fault-free takes place.The process of normally putting away the oars, is driven blade 7 and slowly returns 90 degree from current location through driving mechanism 6 by driver 2 drive motor 4, finishes the aerodynamic brake process of blower fan.This process is joined by primary power supply 1, driver 2, motor 4, encoder 5, driving mechanism 6 these several parts and is finished.
2) promptly put away the oars:
When system breaks down, need quick shutdown, promptly need promptly to put away the oars.The process of promptly putting away the oars, is driven blade 7 and slowly returns 90 degree from current location through driving mechanism 6 by driver 2 drive motor.
This process is according to the difference of fault point, and used power supply is also different.If break down in the system outside of putting away the oars, the process of then putting away the oars is identical with the used method of normally putting away the oars, and is just quicker than normally putting away the oars; If the primary power supply of system 1 breaks down, then switch to standby power supply 3 power supply states by first diverter switch 9, directly power to finish promptly for driver 2 dc buss by standby power supply 3 and put away the oars.
3) open loop is put away the oars:
(main finger actuator 2 faults or encoder 5 faults) need carry out open loop and put away the oars when catastrophe failure takes place.When driver 2 or encoder 5 break down, be the internal fault of the system of putting away the oars, put away the oars and can't carry out this moment.At this situation, we adopt the method for directly powering for motor 4 to put away the oars.The open loop process of putting away the oars is uncontrollable, and when blade receives that 90 can not stop when spending, so we are when installing a limit switch 8 when this switch triggering in 91 degree positions, and system gives motor 4 outages by disconnecting second diverter switch 10, and pressure is stopped it.For anti-limit switch 8 faults here, we have installed a redundant limit switch again in 94 degree positions, guarantee the security of system shutdown.
For the reliability of enhanced system, reduce the degree of risk of fault point, we adopt separate control mode to three blades respectively, and three blades all can independently be put away the oars.Even the motor 4 of a blade or driving mechanism 6 break down like this, putting away the oars of other two blades also can be finished, and can play the aerodynamic brake function equally.
Claims (4)
1. the control gear of putting away the oars of a high reliability, it is characterized in that, comprise primary power supply, standby power supply, driver, motor, driving mechanism, blade, limit switch, described motor is provided with encoder, described primary power supply is connected with driver, described driver is connected with motor, described motor is connected with driving mechanism, described driving mechanism is connected with blade, described standby power supply is connected with driver by first diverter switch, described standby power supply is connected with motor by second diverter switch, and described encoder is connected with driver, and described limit switch is located at the blade back, position of putting away the oars.
2. the control gear of putting away the oars of a kind of high reliability according to claim 1 is characterized in that, also comprises redundant limit switch, and this redundancy limit switch is located at the back of limit switch.
3. the control gear of putting away the oars of a kind of high reliability according to claim 1 is characterized in that, line between described limit switch and the blade rotation axle center, and the angle between the blade is 0.5 °～3 °.
4. the control gear of putting away the oars of a kind of high reliability according to claim 2 is characterized in that, line between described redundant limit switch and the blade rotation axle center, and the angle of line is 2 °～5 ° between limit switch and the blade rotation axle center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020244664XU CN201835984U (en) | 2010-06-29 | 2010-06-29 | Highly-reliable pitch control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020244664XU CN201835984U (en) | 2010-06-29 | 2010-06-29 | Highly-reliable pitch control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201835984U true CN201835984U (en) | 2011-05-18 |
Family
ID=44006088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020244664XU Expired - Fee Related CN201835984U (en) | 2010-06-29 | 2010-06-29 | Highly-reliable pitch control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201835984U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312774A (en) * | 2010-06-29 | 2012-01-11 | 上海派恩科技有限公司 | Pitch-withdrawing control system |
| CN104090566A (en) * | 2014-07-04 | 2014-10-08 | 成都阜特科技股份有限公司 | Wind power variable pitch loading and testing system |
| CN112145349A (en) * | 2020-09-28 | 2020-12-29 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch system limit switch trigger identification and control method |
-
2010
- 2010-06-29 CN CN201020244664XU patent/CN201835984U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312774A (en) * | 2010-06-29 | 2012-01-11 | 上海派恩科技有限公司 | Pitch-withdrawing control system |
| CN104090566A (en) * | 2014-07-04 | 2014-10-08 | 成都阜特科技股份有限公司 | Wind power variable pitch loading and testing system |
| CN104090566B (en) * | 2014-07-04 | 2017-01-11 | 成都阜特科技股份有限公司 | Wind power variable pitch loading and testing system |
| CN112145349A (en) * | 2020-09-28 | 2020-12-29 | 中国船舶重工集团海装风电股份有限公司 | Wind turbine generator pitch system limit switch trigger identification and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102418662B (en) | Safety operation control system of wind driven generator | |
| WO2012073351A1 (en) | Control device for electric vehicle | |
| CN110017245B (en) | Redundant control circuit and method for motor band-type brake in double-drive variable-pitch system | |
| CN104329221B (en) | Paddle retracting method of variable-pitch system | |
| CN103225586B (en) | Anti-runaway safety control method for wind generating set | |
| EP2639449B1 (en) | Electrical yaw drive for a wind turbine, wind turbine and method for operating a wind turbine | |
| CN211701892U (en) | Safe redundant control system of motor band-type brake of double-drive electric variable pitch system | |
| CN201835984U (en) | Highly-reliable pitch control device | |
| CN105484937A (en) | Control method and device for variable pitch system of wind generating set | |
| WO2019011164A1 (en) | Power exchange station and protection system thereof | |
| CN114856910A (en) | Multi-drive variable pitch system and fan | |
| CN102312774A (en) | Pitch-withdrawing control system | |
| CN102287332A (en) | Unidirectional braking device for wind turbine pitch system | |
| CN103452755B (en) | A kind of controlling method of putting away the oars of wind power generating set direct current variable pitch control system | |
| CN102913388B (en) | Emergency propeller retraction system of wind generating set and control method | |
| KR101298627B1 (en) | Yaw control system and method of wind power generator | |
| CN110821759B (en) | Hydraulic variable propeller fault rapid positioning and safe shutdown method | |
| US20160245257A1 (en) | System for pitch control | |
| CN102522807A (en) | Control power supply of pitch system of wind driven generator | |
| CN102434390B (en) | Blade brake device | |
| CN105905090B (en) | A kind of electric vacuum pump control circuit | |
| CN202867090U (en) | Emergency oar-retracting of wind generating set | |
| CN209855958U (en) | Redundant control circuit of motor band-type brake in dual-drive variable pitch system | |
| CN105257472A (en) | Safety control method for direct-drive fan direct-current pitch varying system | |
| CN109240074B (en) | Method for switching main and standby work of actuator in dual-redundancy control mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20130629 |