CN201092937Y - Structure for installing transformer on engine room rear in wind power generation system - Google Patents
Structure for installing transformer on engine room rear in wind power generation system Download PDFInfo
- Publication number
- CN201092937Y CN201092937Y CNU2007200392253U CN200720039225U CN201092937Y CN 201092937 Y CN201092937 Y CN 201092937Y CN U2007200392253 U CNU2007200392253 U CN U2007200392253U CN 200720039225 U CN200720039225 U CN 200720039225U CN 201092937 Y CN201092937 Y CN 201092937Y
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- Prior art keywords
- transformer
- cabin
- wind
- generating system
- power generating
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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 relates to a wind-driven generating system, in particular to a structure that a transformer in the wind-driven generating system is installed on the back portion of a cabin. According to the technical scheme, the upper end of the transformer is mutually connected with the top portion of the cabin through a draw rod, a damping washer is arranged on the joint portion of the draw rod and the transformer, and a cushion socket is arranged between the bottom of the transformer and the base of the bottom of the cabin. The transformer is installed in an independent chamber on the back portion of the cabin, thereby reducing the distance between the transformer and the generator and a frequency-converter, decreasing interconnecting cables which are demanded, reducing line loss, saving cost, increasing the efficiency of wind-driven generation, and avoiding generating over-voltage when high-frequency impulse voltage which is output by a PWM transformer is transmitted in the cable.
Description
Technical field
The utility model relates to wind-power generating system, and transformer is installed on the structure of nacelle rear in specifically a kind of wind-power generating system.
Background technique
The MW class variable-speed constant-frequency wind power generation system needs to use boosting transformer to come the voltage of match generator and medium voltage network when generating electricity by way of merging two or more grid systems.In traditional wind power generating set, boosting transformer all is installed at the bottom of the tower of wind-power generating system, is convenient to like this safeguard, has also alleviated the weight in cabin simultaneously.
But present domestic transformer technology can adapt to the rugged environment of wind power generating set fully, and non-maintaining; Therefore there has not been too big advantage at the bottom of boosting transformer being installed in tower.
In the megawatt level wind power generation system, the height of pylon is generally about 80 meters.If way according to routine, at the bottom of transformer is placed on tower, then need the output power of frequency variator and generator unit stator to be delivered to transformer through long cable, simultaneously because the voltage of step down side has only 690V, so being used for the cable of transmission electric power can compare slightly, the loss of circuit is very big like this, and cable and laying expense are all very high.
The PWM frequency variator has adopted the high frequency turn-off device simultaneously, the pulsed voltage du/dt of its output is higher, therefore when between frequency variator, generator and the transformer during through long cable connection, if matching, impedance will not produce overvoltage on the line, this will increase the insulation stress of generator and Transformer Winding, reduce the working life of winding, frequency variator is also had many adverse influences.
Summary of the invention
The purpose of this utility model is to provide transformer in a kind of wind-power generating system to be installed on the structure of nacelle rear, transformer is installed in the independent cell of nacelle rear, distance between transformer and generator and the frequency variator has just been reduced widely, required conjunction cable is shorter, line loss has just reduced, and saved cost, improved the efficient of wind-power electricity generation, also avoided the high-frequency electrical pulses of PWM frequency variator output to be pressed in generation overvoltage when transmitting in the cable.
According to the technological scheme that the utility model provides, utilize pull bar to interconnect between the upper end of transformer and the top in cabin, in the connecting part of pull bar and transformer beam is set; In the bottom of transformer and be arranged between the base of bottom, cabin shock absorbing seat is arranged.
Pull bar is a flexible rod, comprises outer bar and the telescopic bar that is positioned at outer bar, and outer bar wherein is connected with transformer, and interior bar is connected with top-support.Be provided for the partition wall that the inside with transformer and cabin separates at the rear portion in cabin, the rear portion in cabin is divided into a cell that independently is used to install transformer, the fence of being convenient to air ventilation is set in the bottom of cell; One section safe distance is arranged between transformer and partition wall.Pull bar has two, lays respectively at the both sides, top of transformer.On base, be provided for installing the support of fan, flexible pipeline be installed, in flexible pipe, wear power line and signaling line in the inside of support.
The low voltage side of transformer utilizes flexible cable to link to each other with the generating pusher side that is installed on the front portion, cabin, and betwixt fus is set; The medium voltage side of transformer utilizes three core cable to be connected to electrical network, and betwixt the metal oxide arrester that shields is set; The low pressure neutral end of transformer is directly connected on the earthed system of wind-power generating system.
The utility model has the advantages that: because transformer is installed in the independent cell of nacelle rear, therefore reduced the distance between transformer and generator and the frequency variator, shortened required conjunction cable, reduced line loss, saved cost, improve the efficient of wind-power electricity generation, also avoided the high-frequency electrical pulses of PWM frequency variator output to be pressed in generation overvoltage when transmitting in the cable.
Description of drawings
Fig. 1 is blower fan engine room structure figure.
Fig. 2 is the scheme of installation of transformer at nacelle rear.
Fig. 3 is the right elevation of Fig. 2.
Fig. 4 is the top scheme of installation of transformer.
Fig. 5 is the scheme of installation of transformer bottom.
Embodiment
As shown in the figure: 4 at the top in the upper end of transformer 2 and cabin 1 utilizes pull bar 5 to interconnect, and in the connecting part of pull bar 5 and transformer 2 beam 6 is set, and this beam 6 can adopt the rubber seal with high strength elastic, to play the effect of good damping; In the bottom of transformer 2 and 8 of bases being arranged at 1 bottom, cabin shock absorbing seat 7 is arranged, shock absorbing seat 7 can adopt the rubber seal of high strength elastic equally, to play the effect of damping.Base 8 is fixed by bolts in the independent cell at 1 rear portion, cabin.
1 rear portion is provided for the partition wall 3 that the inside with transformer 2 and cabin 1 separates in the cabin, and the rear portion in cabin 1 is divided into an independently cell; And, one section safe distance is arranged between transformer 2 and partition wall 3, have good cooling space to guarantee equipment.
On base 8, be provided for installing the support of fan, flexible pipeline be installed, in flexible pipe, wear power line and signaling line in the inside of support.Have the support of row portion fan power supply line and signaling line on the base of transformer, signaling line and feed cable are placed in the flexible pipe, are fixed on the outside of transformer.These pipes are installed in the inside of fan supporting frame, therefore can not be damaged.
The rated power of transformer 2 obtains under the forced air cooling condition.The temperature of transformer 2 is controlled by the temp controller that is installed on the transformer 2.The startup that the data that the temp controller collection is installed in the temperature transducer on Transformer Winding and the iron core are controlled cooling fan with close, this temp controller sends the running state parameter of transformer 2 to by the RS485 interface master controller of blower fan simultaneously.
Cool exterior air flows to the independent cell that transformer 2 is installed by the fence of 1 bottom, cabin; The renewal of indoor air is to finish by the natural convection of the fan of transformer 2 or air.
Simultaneously, transformer 2 is installed in the effect that balance wind wheel weight is also played at 1 rear portion, cabin, makes the driftage revolution support stress balance, has increased the stability in cabin 1.
Blower fan dedicated transformer 2 is meant the three-phase power transformer that connects BN2000 wind energy conversion system low pressure and wind energy turbine set medium voltage network.Its task is the voltage of match generator and medium voltage network, transmission generator all electric power that send or that consume.Transformer is installed in the independent cell of nacelle rear, and low voltage side is connected to the generating pusher side by flexible cable, and the fus protection is arranged; Medium voltage side is connected to electrical network by three core cable, and metal oxide arrester and the switching device protection that is installed under the tower are arranged; The low pressure neutral end is directly connected on the earthed system of wind energy conversion system.The mounting structure of this transformer in the cabin designs the innovation structure design that blower fan dedicated transformer that title just writes is installed on nacelle rear.
The low voltage side of transformer 2 utilizes flexible cable to link to each other with the generating pusher side that is installed on 1 front portion, cabin, and betwixt fus is set; The medium voltage side of transformer 2 utilizes three core cable to be connected to electrical network, and betwixt the metal oxide arrester that shields is set; The low pressure neutral end of transformer 2 is directly connected on the earthed system of wind-power generating system.
Claims (6)
1. transformer is installed on the structure of nacelle rear in the wind-power generating system, it is characterized in that: utilize pull bar (5) to interconnect between the top (4) of the upper end of transformer (2) and cabin (1), in the connecting part of pull bar (5) and transformer (2) beam (6) is set; In the bottom of transformer (2) and be arranged between the base (8) of bottom, cabin (1) shock absorbing seat (7) is arranged.
According to claim 1 in the wind-power generating system transformer be installed on the structure of nacelle rear, it is characterized in that: pull bar (5) is a flexible rod, comprise outer bar and the telescopic bar that is positioned at outer bar, outer bar wherein is connected with transformer, and interior bar is connected with top-support (4).
According to claim 1 in the wind-power generating system transformer be installed on the structure of nacelle rear, it is characterized in that: the rear portion of (1) is provided for the partition wall (3) that the inside with transformer (2) and cabin (1) separates in the cabin, the rear portion of cabin (1) is divided into a cell that independently is used to install transformer (1), the fence of being convenient to air ventilation is set in the bottom of cell; Between transformer (2) and partition wall (3), one section safe distance is arranged.
According to claim 1 in the wind-power generating system transformer be installed on the structure of nacelle rear, it is characterized in that: pull bar (5) has two, lays respectively at the both sides, top of transformer (2).
According to claim 1 in the wind-power generating system transformer be installed on the structure of nacelle rear, it is characterized in that: the support that on base (8), is provided for installing fan, flexible pipeline is installed in inside at support, wears power line and signaling line in flexible pipe.
According to claim 1 in the wind-power generating system transformer be installed on the structure of nacelle rear, it is characterized in that: the low voltage side of transformer (2) utilizes the flexible cable generating pusher side anterior with being installed on cabin (1) to link to each other, and betwixt fus is set; The medium voltage side of transformer (2) utilizes three core cable to be connected to electrical network, and betwixt the metal oxide arrester that shields is set; The low pressure neutral end of transformer (2) is directly connected on the earthed system of wind-power generating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200392253U CN201092937Y (en) | 2007-06-04 | 2007-06-04 | Structure for installing transformer on engine room rear in wind power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200392253U CN201092937Y (en) | 2007-06-04 | 2007-06-04 | Structure for installing transformer on engine room rear in wind power generation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201092937Y true CN201092937Y (en) | 2008-07-30 |
Family
ID=39900903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200392253U Expired - Fee Related CN201092937Y (en) | 2007-06-04 | 2007-06-04 | Structure for installing transformer on engine room rear in wind power generation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201092937Y (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101713377A (en) * | 2009-10-14 | 2010-05-26 | 任树华 | Novel wind driven generator |
| CN102979682A (en) * | 2011-09-02 | 2013-03-20 | 西门子公司 | Wind turbine, transformer chamber for a wind turbine, wind turbine structure component, and method for assembling a wind turbine |
| CN103174599A (en) * | 2013-03-17 | 2013-06-26 | 浙江海洋学院 | Ocean wind energy converting device |
| US8648488B2 (en) | 2008-12-16 | 2014-02-11 | Vestas Wind Systems A/S | Wind turbine |
| CN106224178A (en) * | 2016-08-24 | 2016-12-14 | 天津天洲津重风力发电设备有限公司 | A kind of 1.5MW engine compartment seat of wind generating set |
| CN106762473A (en) * | 2016-12-22 | 2017-05-31 | 江苏金风科技有限公司 | Wind power generating set |
| WO2019121040A1 (en) * | 2017-12-20 | 2019-06-27 | Siemens Aktiengesellschaft | Assembly consisting of a transformer tank and a nacelle of a wind turbine |
| CN112820500A (en) * | 2021-01-04 | 2021-05-18 | 中车株洲电力机车研究所有限公司 | Fully-integrated wind turbine generator set with built-in dry-type transformer and design method thereof |
| CN114278523A (en) * | 2020-11-16 | 2022-04-05 | 中车株洲电力机车研究所有限公司 | Wind generating set of cabin integrated step-up transformer |
| CN114278524A (en) * | 2020-11-18 | 2022-04-05 | 中车株洲电力机车研究所有限公司 | Connecting structure of wind turbine generator cabin and dry-type transformer |
-
2007
- 2007-06-04 CN CNU2007200392253U patent/CN201092937Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8648488B2 (en) | 2008-12-16 | 2014-02-11 | Vestas Wind Systems A/S | Wind turbine |
| CN101713377A (en) * | 2009-10-14 | 2010-05-26 | 任树华 | Novel wind driven generator |
| CN102979682A (en) * | 2011-09-02 | 2013-03-20 | 西门子公司 | Wind turbine, transformer chamber for a wind turbine, wind turbine structure component, and method for assembling a wind turbine |
| US9514874B2 (en) | 2011-09-02 | 2016-12-06 | Siemens Aktiengesellschaft | Transformer chamber for a wind turbine |
| CN103174599A (en) * | 2013-03-17 | 2013-06-26 | 浙江海洋学院 | Ocean wind energy converting device |
| CN106224178A (en) * | 2016-08-24 | 2016-12-14 | 天津天洲津重风力发电设备有限公司 | A kind of 1.5MW engine compartment seat of wind generating set |
| CN106762473A (en) * | 2016-12-22 | 2017-05-31 | 江苏金风科技有限公司 | Wind power generating set |
| WO2019121040A1 (en) * | 2017-12-20 | 2019-06-27 | Siemens Aktiengesellschaft | Assembly consisting of a transformer tank and a nacelle of a wind turbine |
| CN111542696A (en) * | 2017-12-20 | 2020-08-14 | 西门子股份公司 | Assembly comprising a wind turbine transformer box and a nacelle |
| US11506187B2 (en) | 2017-12-20 | 2022-11-22 | Siemens Energy Global GmbH & Co. KG | Assembly consisting of a transformer tank and a nacelle of a wind turbine |
| CN114278523A (en) * | 2020-11-16 | 2022-04-05 | 中车株洲电力机车研究所有限公司 | Wind generating set of cabin integrated step-up transformer |
| CN114278524A (en) * | 2020-11-18 | 2022-04-05 | 中车株洲电力机车研究所有限公司 | Connecting structure of wind turbine generator cabin and dry-type transformer |
| CN112820500A (en) * | 2021-01-04 | 2021-05-18 | 中车株洲电力机车研究所有限公司 | Fully-integrated wind turbine generator set with built-in dry-type transformer and design method thereof |
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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: 20080730 Termination date: 20100604 |