CN204312247U - Regenerative electric power braking device - Google Patents
Regenerative electric power braking device Download PDFInfo
- Publication number
- CN204312247U CN204312247U CN201420806412.XU CN201420806412U CN204312247U CN 204312247 U CN204312247 U CN 204312247U CN 201420806412 U CN201420806412 U CN 201420806412U CN 204312247 U CN204312247 U CN 204312247U
- Authority
- CN
- China
- Prior art keywords
- grid
- wind turbines
- pass switch
- electric power
- braking device
- 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
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 discloses a kind of regenerative electric power braking device, it is characterized in that, be made up of low voltage ride through device/de-excitation resistance R, super capacitor C, by-pass switch K and controller; Described low voltage ride through device/de-excitation resistance R, super capacitor C and by-pass switch K connect the grid-connected bypass being formed and interlock with grid-connected switch control circuit successively; When described controller receives brake failure signal, control by-pass switch K to close, by grid-connected bypass access generator unit stator loop, the excitation contactor simultaneously also controlling Wind turbines frequency conversion system closes, the dump energy access generator amature energized circuit produced by Wind turbines frequency conversion system off-grid.Usefulness of the present utility model is: do not need to change blower fan wiring, installs transformation conveniently; Back-up protection can not only be provided for wind power generating set brake, and the power storage that generator produces can be got up, realize electric regenerative and recycle; Under accident conditions, braking effect is obvious, and loss is little.
Description
Technical field
The utility model relates to a kind of braking device, is specifically related to a kind of regenerative electric power braking device, belongs to electrical brake braking technology field.
Background technique
Wind turbines is under theft-resistant link chain action and hypervelocity driving state, and when air brake (pitch-controlled system) lost efficacy, when high speed shaft mechanical brake system also lost efficacy, fan blade, by high speed operation, so just likely the accident such as tower, blade broken can occur down.
Model utility content
For solving the deficiencies in the prior art, the purpose of this utility model is to provide a kind of braking device, and this braking device can not only protect fan safe to shut down, and the power storage that generator produces can be got up, and realizes electric regenerative and recycles.
In order to realize above-mentioned target, the utility model adopts following technological scheme:
A kind of regenerative electric power braking device, is characterized in that, be made up of low voltage ride through device/de-excitation resistance R, super capacitor C, by-pass switch K and controller;
Aforementioned low voltage ride through device/de-excitation resistance R, super capacitor C and by-pass switch K connect formation series circuit successively, aforementioned series circuit is grid-connected bypass, realize interlocking with grid-connected switch control circuit by by-pass switch K, when the action of fan safe chain, protection act hypervelocity are shut down, the grid-connected switch protection tripping operation of Wind turbines;
The brake failure signal that aforementioned controllers comes for the detection device transmission receiving Wind turbines, when brake failure, aforementioned controllers controls by-pass switch K and closes, by grid-connected bypass access generator unit stator loop, the excitation contactor that aforementioned controllers also controls Wind turbines frequency conversion system simultaneously closes, the dump energy access generator amature energized circuit produced by Wind turbines frequency conversion system off-grid, provides rotor-exciting indirectly.
Aforesaid regenerative electric power braking device, is characterized in that, aforementioned de-excitation resistance R is high-power resistance.
Aforesaid regenerative electric power braking device, is characterized in that, aforementioned high-power resistance is DC bus quenching resistor.
Usefulness of the present utility model is: structure is simple, economical rationality; Do not need to change blower fan wiring, transformation is installed conveniently; Back-up protection can not only be provided for wind power generating set brake, and the power storage that generator produces can be got up, realize electric regenerative and recycle; Under accident conditions, braking effect is obvious, and loss is little, effectively can reduce blower fan hypervelocity simultaneously and fall brake for a long time thermal source that produces of the risk of tower and high-speed disc and to ignite the risk of blower fan.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of regenerative electric power braking device of the present utility model access Wind turbines.
Embodiment
Below in conjunction with the drawings and specific embodiments, concrete introduction is done to the utility model.
With reference to Fig. 1, regenerative electric power braking device of the present utility model is made up of de-excitation resistance R (or low voltage ride through device), super capacitor C, by-pass switch K and controller.Wherein, de-excitation resistance R, super capacitor C and by-pass switch K connect formation series circuit successively; this series circuit is grid-connected bypass; realize interlocking with grid-connected switch control circuit by by-pass switch K; when the action of fan safe chain, protection act hypervelocity are shut down, the grid-connected switch protection tripping operation of Wind turbines.The brake failure signal that controller comes for the detection device transmission receiving Wind turbines, such as: pitch-controlled system controls disablement signal, high speed shaft mechanical brake Systematical control disablement signal, when brake failure, controller controls by-pass switch K and closes, by grid-connected bypass access generator unit stator loop, the excitation contactor that this controller also controls Wind turbines frequency conversion system simultaneously closes, the dump energy access generator amature energized circuit produced by fan frequency conversion system off-grid, provides rotor-exciting indirectly.
Regenerative electric power braking device of the present utility model, its working principle is as follows:
Wind turbines is under theft-resistant link chain action and hypervelocity driving state, blower fan off-grid (not switch protection tripping operation), when air brake (pitch-controlled system) lost efficacy, when high speed shaft mechanical brake system also lost efficacy, brake failure signal is sent to controller by the detection device of Wind turbines, controller controls by-pass switch K and closes, by de-excitation resistance R, the grid-connected bypass that super capacitor C and by-pass switch K series connection is formed is access in generator unit stator loop, wherein, super capacitor C is used for the electrical power storage of generator generation, the electric energy stored can by inversion circuit inversion to blower fan 400V power system, as fan yaw and hydraulic station electrical source of power, can also be seen off by electrical network, recycle to realize electrical energy regeneration.During super capacitor C electricity excess of storage, de-excitation resistance R will discharge the electricity of this surplus with the form of heat energy, thus prevents blower fan to exceed the speed limit and the overheated initiation fire of the long-term drag friction of high speed shaft brake callipers, namely protects fan safe and shuts down.Meeting produce power after fan frequency conversion system off-grid, the excitation contactor that controller controls Wind turbines frequency conversion system closes, thus the dump energy access generator amature energized circuit that Wind turbines frequency conversion system off-grid is produced, indirectly provide rotor-exciting.
In the utility model, the de-excitation resistance R of release heat energy is high-power resistance, can select DC bus quenching resistor.
As can be seen here; regenerative electric power braking device of the present utility model; not only structure simply, does not need to change blower fan wiring, installation transformation is convenient for it; and back-up protection can be provided for wind power generating set brake; the power storage that generator produces can also be got up simultaneously; realize electric regenerative to recycle, there is fabulous application value.
It should be noted that, above-described embodiment does not limit the utility model in any form, the technological scheme that the mode that all employings are equal to replacement or equivalent transformation obtains, and all drops in protection domain of the present utility model.
Claims (3)
1. regenerative electric power braking device, is characterized in that, is made up of low voltage ride through device/de-excitation resistance R, super capacitor C, by-pass switch K and controller;
Described low voltage ride through device/de-excitation resistance R, super capacitor C and by-pass switch K connect formation series circuit successively, described series circuit is grid-connected bypass, realize interlocking with grid-connected switch control circuit by by-pass switch K, when the action of fan safe chain, protection act hypervelocity are shut down, the grid-connected switch protection tripping operation of Wind turbines;
The brake failure signal that described controller comes for the detection device transmission receiving Wind turbines, when brake failure, described controller controls by-pass switch K and closes, by grid-connected bypass access generator unit stator loop, the excitation contactor that described controller also controls Wind turbines frequency conversion system simultaneously closes, the dump energy access generator amature energized circuit produced by Wind turbines frequency conversion system off-grid, provides rotor-exciting indirectly.
2. regenerative electric power braking device according to claim 1, is characterized in that, described de-excitation resistance R is high-power resistance.
3. regenerative electric power braking device according to claim 2, is characterized in that, described high-power resistance is DC bus quenching resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806412.XU CN204312247U (en) | 2014-12-17 | 2014-12-17 | Regenerative electric power braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420806412.XU CN204312247U (en) | 2014-12-17 | 2014-12-17 | Regenerative electric power braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312247U true CN204312247U (en) | 2015-05-06 |
Family
ID=53134566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420806412.XU Expired - Fee Related CN204312247U (en) | 2014-12-17 | 2014-12-17 | Regenerative electric power braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089582A (en) * | 2016-08-15 | 2016-11-09 | 许继集团有限公司 | Vertical shaft wind brake system, braking method and wind generator system |
| CN112128281A (en) * | 2020-10-20 | 2020-12-25 | 马少华 | Symmetric multipoint monitoring wear early warning brake caliper |
| CN116317742A (en) * | 2023-05-16 | 2023-06-23 | 北京金风科创风电设备有限公司 | Torque control device of wind generating set, wind generating set and control method |
-
2014
- 2014-12-17 CN CN201420806412.XU patent/CN204312247U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089582A (en) * | 2016-08-15 | 2016-11-09 | 许继集团有限公司 | Vertical shaft wind brake system, braking method and wind generator system |
| CN106089582B (en) * | 2016-08-15 | 2019-03-05 | 许继集团有限公司 | Vertical shaft wind brake system, braking method and wind generator system |
| CN112128281A (en) * | 2020-10-20 | 2020-12-25 | 马少华 | Symmetric multipoint monitoring wear early warning brake caliper |
| CN112128281B (en) * | 2020-10-20 | 2021-07-09 | 采埃孚汽车系统(武汉)有限公司 | Symmetric multipoint monitoring wear early warning brake caliper |
| CN116317742A (en) * | 2023-05-16 | 2023-06-23 | 北京金风科创风电设备有限公司 | Torque control device of wind generating set, wind generating set and control method |
| CN116317742B (en) * | 2023-05-16 | 2023-08-29 | 北京金风科创风电设备有限公司 | Torque control device of wind generating set, wind generating set and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI494505B (en) | Wind power generating system and control method thereof | |
| CN102709944B (en) | Control method of low voltage through of wind driven generator set based on DGNR variable pitch system | |
| CN204312247U (en) | Regenerative electric power braking device | |
| CN104329225B (en) | Wind power generator set power control method | |
| CN103423096B (en) | With the wind power generating set of accumulated energy flywheel | |
| CN201129270Y (en) | Electromagnetic reduced speed pressure-limiting type 600 w wind and light complementary power generation system | |
| CN201991694U (en) | Control system for blade speed regulating device of wind generating set | |
| CN107701372A (en) | A kind of wind power generating set self-protection control method become under oar Actuators Failures | |
| JP3200127U (en) | Wind power generation system with brake control | |
| CN104047802A (en) | Method for controlling speed-limitation speed-stabilization current-limitation power generation of wind driven generator | |
| CN104716666B (en) | For being detached from the control strategy of the double fed induction generators wind power system of linear power grid | |
| CN207212600U (en) | A kind of wind generator set blade deicing system | |
| CN203248316U (en) | Operation control system for variable pitch system | |
| CN205779476U (en) | A kind of double-fed wind generating device | |
| CN102751814A (en) | Small wind generator hybrid braking system and braking method | |
| TWI498477B (en) | Wind power generating system | |
| CN205330883U (en) | Multi -functional aerogenerator with adjustable direction | |
| CN103410661B (en) | A kind of device of putting away the oars exchanging variable-pitch control system | |
| CN102946119B (en) | Methods and system for controlling wind turbine generator to be power-off and power-on | |
| CN102434390A (en) | Blade brake device | |
| CN202659414U (en) | Paddle-switching system with paddle self-locking function | |
| CN202108662U (en) | Safe and stable alternating-current propeller change control system | |
| CN104564522A (en) | Method for controlling operating angle of blades of wind generating set | |
| CN202383538U (en) | Heating return circuit of wheel axle box of wind power pitch-regulated system | |
| CN204316403U (en) | A kind of blower fan tower barrel device with photovoltaic panel |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20171217 |