CN201574893U - Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system - Google Patents
Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system Download PDFInfo
- Publication number
- CN201574893U CN201574893U CN2009202988867U CN200920298886U CN201574893U CN 201574893 U CN201574893 U CN 201574893U CN 2009202988867 U CN2009202988867 U CN 2009202988867U CN 200920298886 U CN200920298886 U CN 200920298886U CN 201574893 U CN201574893 U CN 201574893U
- Authority
- CN
- China
- Prior art keywords
- direct
- contactor
- self
- drive
- permanent magnet
- 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 - Lifetime
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
The utility model discloses a self-close brake device for a permanent magnet direct-drive/semi-direct-drive wind turbine generator system. The self-close brake device comprises a contactor, a discharge resistor and an anti-parallel thyristor, wherein the contactor and the anti-parallel thyristor are connected in parallel; the discharge resistor is connected at output ends of the contactor and the anti-parallel thyristor, and an input end of the contactor is connected with an output end of a permanent-magnet generator through a dual-way circuit breaker. The self-close brake device has the benefits that firstly, the installation of a hydraulic brake device can be dispensed, thereby reducing the manufacturing cost of the permanent-magnet generator; secondly, the easy damage part is eliminated, thereby achieving more secure and reliable use; and thirdly, no electric arc occurs during switching in or off, thereby mitigating the damage of elements and devices.
Description
Technical field
The utility model relates to a kind of power equipment, the particularly a kind of permanent magnet direct-drive/self-enclosed braking device of semi-direct driving wind power generator group.
Background technique
At present, both at home and abroad permanent magnet direct-drive/semi-direct driving wind power generator group all adopts the hydraulic disc brake break, is installed on the permanent magnet generator unit braking device as wind power generating set.This employing hydraulic disk brake device has the following disadvantages: 1. fluid brake takes up room, and increases generator length, directly drives generator for cantilever structure, and increase increases body load because of the length of encorbelmenting; 2. hydraulic pressure installation exists the fault point many, makes wind-driven generator produce disorderly closedown; 3. fluid brake increases the generator manufacture cost; 4. fluid brake is installed in pernicious damage has been caused in permanent magnet generator inside to generator hidden danger.
Summary of the invention
For solving above technical deficiency, the utility model provides a kind of cost low, and rate of fault is low, does not produce electric arc and damages the safe and reliable permanent magnet direct-drive/self-enclosed braking device of semi-direct driving wind power generator group.
The utility model is realized by following measure:
Permanent magnet direct-drive of the present utility model/self-enclosed the braking device of semi-direct driving wind power generator group, comprise contactor, unloading resistance and anti-parallel thyristor, described contactor and anti-parallel thyristor parallel connection, unloading resistance is the output terminal that star connection is connected contactor and anti-parallel thyristor, and the input end of described contactor is connected with generator output end by the two-way circuit breaker.
The beneficial effects of the utility model are: thereby 1. can remove from fluid brake minimizing generator manufacture cost is installed.2. reduced vulnerable point, used more safe and reliable.3. do not produce electric arc during switch, reduce damage components and parts.
Description of drawings
Fig. 1 is a circuit connection diagram of the present utility model.
Fig. 2 is a scheme of installation of the present utility model.
Embodiment
As shown in Figure 1, 2, the T among Fig. 1 is permanent magnet direct-drive of the present utility model/self-enclosed braking device of semi-direct driving wind power generator group, and wherein Fig. 2 is a circuit connection diagram of the present utility model, and A wherein, B, C three-phase are connected on the K1 end respectively.It comprises contactor CJ, unloading resistance R 1, R2, R3 and anti-parallel thyristor DG1, DG2, DG3, contactor CJ and anti-parallel thyristor DG1, DG2, DG3 parallel connection.The output terminal of permanent magnet generator G connects a pair of circuit breaker K, and the end K2 of two-way circuit breaker K connects electric power output units such as current transformer PWM, and the other end K1 connects the input end of contactor CJ.Unload resistance R 1, R2, R3 simultaneously and be the output terminal that the y connection mode is connected contactor CJ and anti-parallel thyristor DG1, DG2, DG3.The model of contactor CJ, anti-parallel thyristor DG1, DG2, DG3 and unloading resistance R 1, R2, R3 is determined according to the model of permanent magnet generator G.
Its working principle is: the characteristics of utilizing the intrinsic retarding torque in the self-enclosed back of permanent magnet generator, when not needing self-enclosed brake, two-way circuit breaker K links to each other with current transformer PWM input end, permanent magnet generator G normally exports, when permanent magnet generator G first brake system is after the pitch-controlled system feathering is carried out, permanent magnet generator unit speed drop is when 2-5 changes, two-way circuit breaker K moment switches, K1 links to each other with contactor CJ, therefore instantaneous short circuit during the permanent magnet generator slow-speed of revolution, thus the purpose of permanent magnet generator braking finished.
Claims (1)
1. permanent magnet direct-drive/self-enclosed braking device of semi-direct driving wind power generator group, it is characterized in that: comprise contactor, unloading resistance and anti-parallel thyristor, described contactor and anti-parallel thyristor parallel connection, unloading resistance is the output terminal that star connection is connected contactor and anti-parallel thyristor, and the input end of described contactor is connected with the permanent magnet generator output terminal by the two-way circuit breaker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202988867U CN201574893U (en) | 2009-12-19 | 2009-12-19 | Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202988867U CN201574893U (en) | 2009-12-19 | 2009-12-19 | Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201574893U true CN201574893U (en) | 2010-09-08 |
Family
ID=42694766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202988867U Expired - Lifetime CN201574893U (en) | 2009-12-19 | 2009-12-19 | Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201574893U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718260B (en) * | 2009-12-19 | 2011-07-27 | 山东鲁科风电设备有限公司 | Self-sealing brake device of permanent-magnet direct drive/semi-direct drive wind generating set |
-
2009
- 2009-12-19 CN CN2009202988867U patent/CN201574893U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101718260B (en) * | 2009-12-19 | 2011-07-27 | 山东鲁科风电设备有限公司 | Self-sealing brake device of permanent-magnet direct drive/semi-direct drive wind generating set |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106877301A (en) | A kind of high voltage DC breaker and test method | |
| CN102223126A (en) | Variable resistor Crowbar structures for low-voltage ride-through of wind power generation and method for realizing variable resistor Crowbar structures | |
| CN106877300A (en) | A kind of low-voltage direct breaker and test method | |
| CN102005994A (en) | Same-phase switching circuit and actuating device of rare-earth permanent magnet synchronous electric motor | |
| CN105048497A (en) | Doubly-fed wind turbine generator low-voltage ride through method | |
| CN205070452U (en) | Double -fed type wind turbine generator system high voltage system of passing through | |
| CN201574893U (en) | Self-close brake device for permanent magnet direct-drive/semi-direct-drive wind turbine generator system | |
| CN101718260B (en) | Self-sealing brake device of permanent-magnet direct drive/semi-direct drive wind generating set | |
| CN101859157B (en) | Current compensation type alternating-current voltage stabilizer | |
| CN109560565B (en) | Overload protection method for converter of flexible direct current transmission bipolar system | |
| CN113765146B (en) | Double-fed induction fan fault ride-through system and method under direct-current commutation failure | |
| CN201976056U (en) | Same-phase switching circuit of rare earth permanent magnet synchronic motor | |
| CN102790406B (en) | Doubly-fed converter with reliable low-voltage ride-through capacity | |
| CN202550586U (en) | Switches and dynamic resistors for low-voltage ride through of double-fed-type wind driven generator set | |
| CN201584666U (en) | Low-voltage comprehensive power distribution box | |
| CN103746399A (en) | Main circuit and method for improving voltage-source transverter DC power-transmission fault ride-through capability | |
| CN204118716U (en) | A kind of distributed power source failure protecting device being applicable to multi-source electrical network | |
| CN201766546U (en) | Wind generating set protector for coping with voltage dip of power grid | |
| CN201830134U (en) | Frequency converter with bypass | |
| CN203301163U (en) | Composite switch of 10-kV no-impact switched multi-group capacitor group | |
| CN203787969U (en) | Doubly-fed wind turbine grid-connected power generation system | |
| CN203722247U (en) | Major loop for improving DC power transmission fault ride-through capability of voltage source converter | |
| CN203434639U (en) | Grid-connected control device of wind turbine generator | |
| CN103887819B (en) | Doubly-fed fan grid-connected power generation system and control method | |
| CN203387190U (en) | High-voltage reactive compensator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100908 Effective date of abandoning: 20091219 |