CN205248900U - Incessant control source of wind generating set feather system - Google Patents
Incessant control source of wind generating set feather system Download PDFInfo
- Publication number
- CN205248900U CN205248900U CN201520821292.5U CN201520821292U CN205248900U CN 205248900 U CN205248900 U CN 205248900U CN 201520821292 U CN201520821292 U CN 201520821292U CN 205248900 U CN205248900 U CN 205248900U
- Authority
- CN
- China
- Prior art keywords
- power supply
- source
- negative pole
- bus
- generating set
- 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
- 210000003746 feather Anatomy 0.000 title abstract description 5
- 230000005611 electricity Effects 0.000 claims abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
Classifications
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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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
- Y02E10/76—Power conversion electric or electronic aspects
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
Abstract
The utility model provides an incessant control source of wind generating set feather system, includes converter (1), the machine that charges (2), back -up source (3), diode (D1) and switching power supply (4), the input of converter (1) and machine (2) of charging is connected respectively to AC electric network's three -phase electricity, the anodal of machine (2) output that charge is connected with the anodal of back -up source (3), and the negative pole of the machine that charges (2) output is connected with the negative pole of back -up source (3), the positive pole of back -up source (3) passes through anodal connection of dc bus of diode (D1) and converter (1), and the negative pole of back -up source (3) is connected to the negative pole of the dc bus of converter (1), the positive input terminal of switching power supply (4) receives the positive pole of converter dc bus, and the negative pole of converter dc bus is received to the negative pole input of switching power supply (4), the output of switching power supply (4) is the control source of wind generating set feather system.
Description
Technical field
The utility model relates to a kind of wind generating set pitch control that is applied to apart from the uninterrupted control power supply in system.
Background technology
Adopt the wind-driven generator of feather control not only can absorb more wind energy, regulate wind power generating set power, and make wind energy conversion system there is better startup and braking ability, ensure wind energy conversion system reliability service. In the time that wind power generating set or electrical network break down, can control pulp distance varying mechanism and make blade feathering, thereby impeller is braked rapidly; During higher than safe operation wind speed, can make blade in full feathering state at wind speed, improve the force-bearing situation of Wind turbine, avoid the infringement of strong wind to wind energy conversion system. In addition, if by suitable feather control, can reduce the mechanical oscillation on transfer chain, reduce the impact of fitful wind to pylon and the load to blade, thereby reach the fatigue strength that reduces blower fan, extend the wind energy conversion system object in service life.
Wind generating set pitch control apart from the control power supply of system to control device power supplies such as PLC, relay and the contactors of pitch-controlled system. The power supply of controlling power supply has two types conventionally: one is Alternating Current Power Supply, and another kind is direct current supply. Alternating Current Power Supply control power supply is powered by AC network, in the time of AC network fault or ac power supply line fault, controls power supply no-output, and the work such as debugging, malfunction elimination, maintenance and repair are brought inconvenience. Direct current supply control power supply is powered by back-up source, and back-up source is generally battery or super capacitor, in the time of back-up source fault or direct current supply line fault, controls power supply no-output, and the work such as debugging, malfunction elimination, maintenance and repair are brought inconvenience.
Utility model content
The purpose of this utility model is the shortcoming that overcomes prior art, propose a kind of for wind generating set pitch control the uninterrupted control power supply apart from system. The utility model both can be given and control Power supply through frequency changer direct current bus by AC network, can be given and control Power supply through frequency changer direct current bus by back-up source again.
For achieving the above object, the utility model by the following technical solutions:
A kind of wind generating set pitch control is uninterruptedly controlled power supply apart from system, comprises a frequency converter, a charger, a back-up source, a diode and a Switching Power Supply.
The three-phase electricity of AC network is received the input of frequency converter and charger. The positive pole of charger output connects the positive pole of back-up source, and the negative pole of charger output connects the negative pole of back-up source. The positive pole of back-up source is connected with the positive pole of the dc bus of frequency converter by diode, and the negative pole of back-up source connects the negative pole of the dc bus of frequency converter. The electrode input end of Switching Power Supply connects the positive pole of frequency changer direct current bus, and the negative input of Switching Power Supply connects the negative pole of frequency changer direct current bus. The output of Switching Power Supply is the control power supply of wind generating set pitch control apart from system.
Brief description of the drawings
Fig. 1 the utility model wind generating set pitch control is uninterruptedly controlled power supply apart from system;
In figure: 1 frequency converter, 2 chargers, 3 back-up sources, 4 Switching Power Supplies.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figure 1, the utility model comprises a frequency converter 1, charger 2, back-up source 3, diode D1 and a Switching Power Supply 4.
The three-phase electricity of AC network connects respectively the input of frequency converter 1 and charger 2. The positive pole that charger 2 is exported is connected with the positive pole of back-up source 3, and the negative pole of charger output is connected with the negative pole of back-up source 3. The positive pole of back-up source 3 is anodal connection of dc bus with frequency converter 1 by diode D1, and the negative pole of back-up source 3 is connected to the negative pole of the dc bus of frequency converter 1. The electrode input end of Switching Power Supply 4 is received the positive pole of frequency changer direct current bus, and the negative input of Switching Power Supply 4 is received the negative pole of frequency changer direct current bus. The output of Switching Power Supply 4 is the control power supply of wind generating set pitch control apart from system.
When normal work, the three-phase electricity of AC network produces DC voltage through the rectification circuit of frequency converter inside on the dc bus at frequency converter. The alternating current of AC network charges to back-up source 3 through charger 2, and when back-up source 3 is full of electricity, charger 2 transfers floating charge pattern to. And the DC bus-bar voltage of frequency converter is greater than back-up source 3 voltages. Because the positive pole of back-up source 3 is received the positive pole of the dc bus of frequency converter through diode D1, due to the characteristic of the reverse cut-off of diode, the high voltage of dc bus can not charge to back-up source 3, plays the effect of protection back-up source 3. The now bus power taking of wind generating set pitch control apart from the control power supply of system from frequency converter 1, can bio-occlusion wind generating set pitch control apart from system power supply.
Back-up source 3, charger 2 or back-up source supply line fault, and ac power supply line is when normal, the three-phase electricity of AC network produces DC voltage through the rectification circuit of frequency converter inside on the dc bus of frequency converter 1. The now bus power taking of wind generating set pitch control apart from the control power supply of system from frequency converter, can bio-occlusion wind generating set pitch control apart from system power supply.
AC network fault or ac power supply line fault, and direct current supply line is when normal, the DC bus-bar voltage of frequency converter 1 reduces gradually, when lower than back-up source voltage. Back-up source 3 is DC bus powered to frequency converter 1 through diode D1, and the now dc bus power taking of wind generating set pitch control apart from the control power supply of system from frequency converter, gives wind generating set pitch control apart from system power supply.
The utility model is realized the uninterrupted power supply of wind generating set pitch control apart from system control power supply in this way.
Claims (1)
1. a wind generating set pitch control is uninterruptedly controlled power supply apart from system, it is characterized in that, described uninterrupted control power supply comprises frequency converter (1), charger (2), back-up source (3), diode (D1) and Switching Power Supply (4); The three-phase electricity of AC network connects respectively the input of frequency converter (1) and charger (2); The positive pole of charger (2) output is connected with the positive pole of back-up source (3), and the negative pole of charger (2) output is connected with the negative pole of back-up source (3); The positive pole of back-up source (3) is anodal connection of dc bus with frequency converter (1) by diode (D1), and the negative pole of back-up source (3) is connected to the negative pole of the dc bus of frequency converter (1); The electrode input end of Switching Power Supply (4) is received the positive pole of frequency changer direct current bus, and the negative input of Switching Power Supply (4) is received the negative pole of frequency changer direct current bus; The output of Switching Power Supply (4) is the control power supply of wind generating set pitch control apart from system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821292.5U CN205248900U (en) | 2015-10-22 | 2015-10-22 | Incessant control source of wind generating set feather system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520821292.5U CN205248900U (en) | 2015-10-22 | 2015-10-22 | Incessant control source of wind generating set feather system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205248900U true CN205248900U (en) | 2016-05-18 |
Family
ID=55947970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520821292.5U Expired - Fee Related CN205248900U (en) | 2015-10-22 | 2015-10-22 | Incessant control source of wind generating set feather system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205248900U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
| CN112196739A (en) * | 2020-10-10 | 2021-01-08 | 国电联合动力技术有限公司 | Wind generating set uninterrupted power supply intelligent regulation and control system and method |
-
2015
- 2015-10-22 CN CN201520821292.5U patent/CN205248900U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110875594A (en) * | 2018-08-31 | 2020-03-10 | 北京金风科创风电设备有限公司 | Wind generating set and standby redundant power supply system thereof |
| CN112196739A (en) * | 2020-10-10 | 2021-01-08 | 国电联合动力技术有限公司 | Wind generating set uninterrupted power supply intelligent regulation and control system and method |
| CN112196739B (en) * | 2020-10-10 | 2022-04-26 | 国电联合动力技术有限公司 | Wind generating set uninterrupted power supply intelligent regulation and control system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190809 Address after: 226400 East of Jinggangshan Road, Rudong County, Nantong City, Jiangsu Province Co-patentee after: CORONA WIND ENERGY EQUIPMENT (BEIJING) Co.,Ltd. Patentee after: Jiangsu Guoke Intelligent Electric Co.,Ltd. Address before: 100083 Beijing city Haidian District Wangzhuang Road No. 1, Tsinghua Tongfang Technology Plaza, B block 23 layer Patentee before: CORONA WIND ENERGY EQUIPMENT (BEIJING) Co.,Ltd. |
|
| 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: 20160518 |