CN207530549U - A kind of dual feedback wind power generation system using mesolow hybrid technology - Google Patents
A kind of dual feedback wind power generation system using mesolow hybrid technology Download PDFInfo
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- CN207530549U CN207530549U CN201721694698.7U CN201721694698U CN207530549U CN 207530549 U CN207530549 U CN 207530549U CN 201721694698 U CN201721694698 U CN 201721694698U CN 207530549 U CN207530549 U CN 207530549U
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- mesolow
- current transformer
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- generator
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Abstract
A kind of dual feedback wind power generation system using mesolow hybrid technology provided by the utility model, including according to being sequentially connected the wind wheel connect, gear-box, generator, current transformer and transformer, the low-pressure side of transformer includes voltage tap and middle pressure tap, middle pressure tap is connected with generator unit stator, voltage tap is connected with current transformer, generator is mesolow mixed type double-fed generator, generator unit stator output is middle pressure, for low pressure, current transformer connect to feed electric energy to power grid with the rotor of mesolow mixed type double-fed generator for rotor output.Using mesolow hybrid technology by mesolow mixed type double-fed generator, current transformer and with it is middle pressure, voltage tap transformer be connected with power grid, unit is reduced to be lost from power consumption and power cable, wind energy utilization is promoted, so as to less unit cost, promotes unit cost performance.
Description
Technical field
The utility model is related to technical field of wind power generation, and in particular to be sent out using the double-fed wind-force of mesolow hybrid technology
Electric system.
Background technology
Wind power generating set is to convert wind energy into a kind of device of electric energy, energy is obtained from wind by wind wheel, by passing
Dynamic chain is transferred to generator and generates electricity, and usual large-scale wind driven generator is controlled by generator control wind wheel torque, pitch-controlled system
Blade pitch angle maintains wind turbine stable operation under various wind regime.
The electricity generation system of double-fed wind power generator group is mostly using low-pressure system at present, i.e., using low pressure double-fed generator,
Low pressure current transformer and matched transformer.With the increase of power grade, low-voltage power generating system power cable quantity
It is significantly increased, line loss increases therewith, and arrangement, the difficulty of construction of cable also accordingly increase.
Utility model content
For the defects in the prior art, the utility model provides a kind of double-fed wind-force using mesolow hybrid technology and sends out
Electric system can reduce the quantity of unit power cable, reduce unit cost, reduce loss during unit cable transmission, be promoted
Unit generation amount.
A kind of dual feedback wind power generation system using mesolow hybrid technology provided by the utility model, including generator,
Current transformer and transformer, transformer include low pressure side and high pressure side, and the low-pressure side of transformer includes voltage tap and middle pressure tap,
Middle pressure tap is connected with generator unit stator, and voltage tap is connected with current transformer, and generator is sent out for mesolow mixed type double-fed
Motor, current transformer are connect with the rotor of mesolow mixed type double-fed generator.
Further, mesolow mixed type doubly-fed generation machine stator rated voltage is middle pressure, and mesolow mixed type double-fed is sent out
Rotor rated voltage is low pressure.
Further, mesolow mixed type doubly-fed generation machine stator output terminal passes through first contactor, main circuit breaker and change
Tap connection is pressed in depressor.
Further, current transformer include controller, wave filter, rotor-side converter, net side current transformer, second contactor,
Breaker and soft strater, wherein, mesolow mixed type double-fed generator rotor output passes through wave filter, rotor-side unsteady flow
Device, soft strater, breaker and transformer low voltage tap connect；Net side current transformer is connected by second contactor with breaker
It connects；Controller respectively with wave filter, rotor-side converter, net side current transformer, second contactor, breaker, first contactor and
Main circuit breaker is connected.
Further, engine room control cabinet and column foot control cabinet are further included, column foot control cabinet is connected with the output terminal of current transformer
It connects, after column foot control cabinet receives the output signal of current transformer, sends control command to engine room control cabinet so that wind wheel to be controlled to rotate.
Further, column foot control cabinet is connected with transformer low voltage tap, and the column foot control cabinet is to transformer low voltage
Side is monitored.
As shown from the above technical solution, the beneficial effects of the utility model：
The utility model provides a kind of dual feedback wind power generation system using mesolow hybrid technology, including according to being sequentially connected
Wind wheel, gear-box, generator, current transformer and the transformer connect, the low-pressure side of transformer include voltage tap and middle pressure tap, in
Pressure tap is connected with generator unit stator, and voltage tap is connected with current transformer, and generator is mesolow mixed type doubly-fed generation
Machine, current transformer connect to feed electric energy to power grid with the rotor of mesolow mixed type double-fed generator.Skill is mixed using mesolow
Art by mesolow mixed type double-fed generator, current transformer and with it is middle pressure, voltage tap transformer be connected with power grid, drop
Low unit is lost from power consumption and power cable, promotes wind energy utilization, so as to less unit cost, promotes unit cost performance.
Description of the drawings
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution of the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described.In all the appended drawings, it is similar
Element or part are generally identified by similar reference numeral.In attached drawing, each element or part might not be according to practical ratios
It draws.
Fig. 1 is a kind of principle schematic of dual feedback wind power generation system using mesolow hybrid technology of the utility model.
Reference numeral：
1- wind wheels, 2- gear-boxes, 3- generators, 4- current transformers, 5- transformers, 51- step down sides, 52- transformers
In high-pressure side, 511- press tap, 512- voltage taps, 6- first contactors, 7- main circuit breakers, 8- controllers, 9- wave filters,
10- rotor-side converters, 11- net side current transformers, 12- second contactors, 13- breakers, 14- soft straters, 15- column foot master controls
Cabinet, 16- engine room control cabinets.
Specific embodiment
The embodiment of technical solutions of the utility model is described in detail below in conjunction with attached drawing.Following embodiment is only
For clearly illustrating the technical solution of the utility model, therefore example is only used as, and cannot this practicality be limited with this
Novel protection domain.
It should be noted that unless otherwise indicated, technical term or scientific terminology used in this application should be this reality
The ordinary meaning understood with novel one of ordinary skill in the art.
Referring to Fig. 1, a kind of dual feedback wind power generation system using mesolow hybrid technology provided in this embodiment, including
According to the wind wheel connect 1, gear-box 2 and generator 3 is sequentially connected, current transformer 4 and transformer 5 are further included, transformer 5 includes low-pressure side
51 and high-pressure side 52,51 side of low pressure of transformer includes voltage tap 512 and middle pressure tap 511, middle pressure tap 511 and generator
Stator is connected, and voltage tap 512 is connected with current transformer, and generator is mesolow mixed type double-fed generator, and generator is fixed
For middle pressure, rotor output is low pressure for son output, and current transformer 4 is connect with the rotor of mesolow mixed type double-fed generator with to power grid
It feeds electric energy.Mesolow mixed type double-fed generator electronic voltage is middle pressure（3300V or 6000V）, rotor rated voltage is
Low pressure, rotor voltage opening voltage and working voltage are identical with conventional double-fed generator.Current transformer selects conventional low voltage double frequency to become
Device, step down side 690V are flowed, medium voltage side is matched with generator unit stator voltage.Using mesolow hybrid technology by mesolow
Mixed type double-fed generator, current transformer and the transformer with middle pressure, voltage tap are connected with power grid, reduce unit consumable
Electricity and power cable loss, promote wind energy utilization, so as to less unit cost, promote unit cost performance.
Mesolow mixed type doubly-fed generation machine stator output terminal is by first contactor 6, main circuit breaker 7 with being pressed in transformer
Tap 511 connects.Current transformer 4 includes controller 8, wave filter 9, rotor-side converter 10, net side current transformer 11, second contactor
12nd, breaker 13 and soft strater 14, wherein, mesolow mixed type double-fed generator rotor output passes through wave filter 9, rotor
Side converter 10, soft strater 14, breaker 13 are connect with transformer low voltage tap 512；Net side current transformer 11 connects by second
Tentaculum 12 is connected with breaker 13；Controller 8 respectively with wave filter 9, rotor-side converter 10, net side current transformer 11, second
Contactor 12, breaker 13, first contactor 6 are connected with main circuit breaker 7.
Engine room control cabinet 16 and column foot control cabinet 15 are further included using the dual feedback wind power generation system of mesolow hybrid technology,
Column foot control cabinet 15 is connected with the output terminal of current transformer 4, after column foot control cabinet 15 receives the output signal of current transformer, sends control
System orders to engine room control cabinet 16 that wind wheel 1 is controlled to rotate.The connection of column foot control cabinet 15 is connected with the voltage tap 512 of transformer
It connects, column foot control cabinet 15 is monitored step down side 51.
Finally it should be noted that：The above various embodiments is only to illustrate the technical solution of the utility model rather than it is limited
System；Although the utility model is described in detail with reference to foregoing embodiments, those of ordinary skill in the art should
Understand：It can still modify to the technical solution recorded in foregoing embodiments either to which part or whole
Technical characteristic carries out equivalent replacement；And these modifications or replacement, this practicality that it does not separate the essence of the corresponding technical solution are new
The range of each embodiment technical solution of type, should all cover in the claim of the utility model and the range of specification.
Claims (6)
1. a kind of dual feedback wind power generation system using mesolow hybrid technology, it is characterised in that：Including generator, current transformer and
Transformer, the transformer include low pressure side and high pressure side, and the low-pressure side of the transformer includes voltage tap and middle pressure tap,
Medium pressure tap is connected with generator unit stator, and the voltage tap is connected with current transformer, and the generator is mesolow
Mixed type double-fed generator, the current transformer are connect with the rotor of mesolow mixed type double-fed generator.
2. a kind of dual feedback wind power generation system using mesolow hybrid technology according to claim 1, it is characterised in that：
The mesolow mixed type doubly-fed generation machine stator rated voltage be middle pressure, the mesolow mixed type doubly-fed generation machine rotor volume
Constant voltage is low pressure.
3. a kind of dual feedback wind power generation system using mesolow hybrid technology according to claim 2, it is characterised in that：
The mesolow mixed type doubly-fed generation machine stator output terminal in first contactor, main circuit breaker and transformer by pressing tap to connect
It connects.
4. a kind of dual feedback wind power generation system using mesolow hybrid technology according to claim 3, it is characterised in that：
The current transformer includes controller, wave filter, rotor-side converter, net side current transformer, second contactor, breaker and soft start
Device, the mesolow mixed type double-fed generator rotor output pass through wave filter, rotor-side converter, soft strater, open circuit
Device is connect with transformer low voltage tap；The net side current transformer is connected by second contactor with breaker；The controller
Respectively with wave filter, rotor-side converter, net side current transformer, second contactor, breaker, first contactor and main circuit breaker phase
Connection.
5. a kind of dual feedback wind power generation system using mesolow hybrid technology according to claim 4, it is characterised in that：
Engine room control cabinet and column foot control cabinet are further included, the column foot control cabinet is connected with the output terminal of current transformer, the column foot master
After controlling the output signal that cabinet receives current transformer, control command is sent to engine room control cabinet so that wind wheel to be controlled to rotate.
6. a kind of dual feedback wind power generation system using mesolow hybrid technology according to claim 5, it is characterised in that：
The column foot control cabinet is connected with transformer low voltage tap, and the column foot control cabinet is monitored step down side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721694698.7U CN207530549U (en) | 2017-12-08 | 2017-12-08 | A kind of dual feedback wind power generation system using mesolow hybrid technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721694698.7U CN207530549U (en) | 2017-12-08 | 2017-12-08 | A kind of dual feedback wind power generation system using mesolow hybrid technology |
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| Publication Number | Publication Date |
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| CN207530549U true CN207530549U (en) | 2018-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769262A (en) * | 2017-12-08 | 2018-03-06 | 中国船舶重工集团海装风电股份有限公司 | A kind of dual feedback wind power generation system using mesolow hybrid technology |
-
2017
- 2017-12-08 CN CN201721694698.7U patent/CN207530549U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107769262A (en) * | 2017-12-08 | 2018-03-06 | 中国船舶重工集团海装风电股份有限公司 | A kind of dual feedback wind power generation system using mesolow hybrid technology |
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