CN106640527A - Hydraulic control system and wind power generating set - Google Patents
Hydraulic control system and wind power generating set Download PDFInfo
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- CN106640527A CN106640527A CN201611144738.0A CN201611144738A CN106640527A CN 106640527 A CN106640527 A CN 106640527A CN 201611144738 A CN201611144738 A CN 201611144738A CN 106640527 A CN106640527 A CN 106640527A
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- hydraulic
- generator
- passage
- accumulator
- hydraulic control
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/40—Transmission of power
- F05B2260/406—Transmission of power through hydraulic systems
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
-
- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
-
- 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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The embodiment of the invention provides a hydraulic control system and a wind power generating set. The hydraulic control system is used for the wind power generating set and comprises a hydraulic pump, a hydraulic motor, a first hydraulic channel and a second hydraulic channel. The hydraulic pump is driven by a high-speed shaft of a gear box, and the gear box is arranged in a cabin located at the top end of a tower frame. The hydraulic motor is used for driving a power generator, and the power generator is arranged on the tower frame. The first hydraulic channel communicates with an outlet of the hydraulic motor and an inlet of the hydraulic pump and is used for oil returning. The second hydraulic channel communicates with an outlet of the hydraulic pump and an inlet of the hydraulic motor and is used for oil supply. According to the hydraulic control system provided in the embodiment, long-distance power transmission from the cabin to the power generator on the tower frame is achieved through the design of the hydraulic pump, the hydraulic motor and the hydraulic channels.
Description
Technical field
The invention belongs to technical field of wind power generation, more particularly to a kind of hydraulic control system and wind power generating set.
Background technology
The cabin of wind power generating set is arranged on pylon top, the height of pylon typically in tens meters of even rice up to a hundred, this
Plant design feature to have resulted in the stator of wind power generating set, rotor in the operation being lifted into when pylon top is installed or changed
It is very difficult, need by large-scale crane, and if offshore wind turbine, the height of its pylon is higher, it is contemplated that sea
On, installation environment is more difficult to, and common ship cannot carry large-scale crane, and be also relatively difficult to ensure card large-scale crane stability and
The security of operation；And the height of pylon is higher, the difficulty installed and change wind power generating set group is bigger.At sea pacify
During dress wind power generating set, generally require and adopt large-scale crane, large-scale installation ship is equipped with, by the big of large-scale installation ship
Type operating platform, and the more preferable stability of large-scale installation ship, so that it is guaranteed that the installation and replacing of offshore wind turbine group.
But, because large-scale installation ship, large-scale crane belong to heavy type or superduty equipment, whole hoisting cost is very high, so as to
Significantly lift installation, use, the maintenance cost of offshore wind turbine.
If generator is arranged on into the middle and lower part of pylon, above-mentioned technical problem can be solved, but due to wheel hub, gear
Case is all installed on cabin, needs to transmit power to generator, the distance between from cabin to generator for tens meters even on
Hundred meters, the problem of the long range propagation of power is thus brought, common gear transmission obviously cannot solve such long range
Power transmission.
The content of the invention
A kind of hydraulic control system and wind power generating set are embodiments provided, sending out for wind power generating set is solved
Group of motors is arranged on pylon, and power is transferred to the problem of generator from cabin.
In a first aspect, embodiments provide a kind of hydraulic control system, for wind power generating set, including：
Hydraulic pump, drives hydraulic pump, the gear-box to be mounted on the cabin on pylon top by the high speed shaft of gear-box
In；
Hydraulic motor, for driving generator, the generator to be arranged on pylon；
First hydraulic channel, connects outlet and the entrance of the hydraulic pump of the hydraulic motor, for oil return；
Second hydraulic channel, connects outlet and the entrance of the hydraulic motor of the hydraulic pump, for fuel feeding.
Alternatively, the generator is arranged on the middle part or bottom of the pylon.
Alternatively, the hydraulic control system, also includes：
Fuel tank, is located on first hydraulic channel, one end of the fuel tank and the outlet of hydraulic motor, the other end
Connect with the entrance of the hydraulic pump.
Alternatively, the hydraulic control system, also includes：
Rotation speed detection unit, for detecting the rotating speed of the generator or the hydraulic motor, it is preferable that the rotating speed inspection
Survey unit is speed probe；
Accumulator, is connected by double-direction control passage with second hydraulic channel；
Controller, receives the tach signal of the rotation speed detection unit, and controls the accumulator according to tach signal.
Further, the accumulator is controlled according to tach signal, including：
When the rotating speed of the generator or the hydraulic motor exceedes rated speed, the accumulator is controlled from described the
Two hydraulic channels obtain energy and store；
And/or, when the rotating speed of the generator or the hydraulic motor is less than rated speed, control the accumulator to
Second hydraulic channel releases energy, and makes the generator or the rotating speed of the hydraulic motor reach rated speed.
Further, accumulator is controlled according to tach signal, is also included：
When generator is in malfunction, controls the accumulator and obtain energy and store from second hydraulic channel
Get up.
Alternatively, the accumulator is arranged in the pylon.
Alternatively, the double-direction control passage, including：
Supplied to the energy storage passage of the accumulator and from the accumulator to the hydraulic motor from the hydraulic pressure oil pump feed
Letting out for oil can passage.
Alternatively, the energy storage passage is provided with the first check valve, for controlling the hydraulic pump to the accumulator
Unidirectional fuel feeding；Preferably, first check valve is hydraulic control one-way valve；
The energy passage of letting out is provided with the second check valve, for controlling unidirectional confession of the accumulator to the hydraulic motor
Oil；Preferably, second check valve is electric control one-way valve.
Alternatively, overflow valve is additionally provided with the energy storage passage, the overflow valve is located at the first check valve downstream
On passage.
Alternatively, the hydraulic control system also includes fuel tank, and the fuel tank is located on first hydraulic channel, described
One end of fuel tank and the outlet of hydraulic motor, the other end is connected with the entrance of the hydraulic pump, the outlet of the overflow valve
Connect with the fuel tank.
Alternatively, the double-direction control passage, also includes：
Commutation passage, the energy storage passage, described letting out can be connected after passage parallel connection with the commutation passage；In the commutation
Passage is provided with reversal valve and relay, and when the energy in the accumulator oversteps the extreme limit, the relay work drives institute
State reversal valve transposition pressure release；Preferably, the reversal valve is two position three way directional control valve.
Alternatively, the 3rd check valve is provided with the second hydraulic channel, for controlling the hydraulic pump to the hydraulic pressure horse
The unidirectional fuel feeding for reaching, it is preferable that the 3rd check valve is hydraulic control one-way valve.
Alternatively, the energy storage passage is connected in the upstream passageway of the 3rd check valve；Described letting out can passage connection
On the downstream passage of the 3rd check valve.
Alternatively, the hydraulic control system, also includes：
Cooler, is arranged on first hydraulic channel between the fuel tank and the hydraulic pump.
Second aspect, the embodiment of the present invention additionally provides a kind of wind power generating set, including：
Basis；
Pylon, be fixedly mounted on it is described on the basis of；
Cabin, is fixedly mounted on the top of the pylon, and engine room inside is provided with gear-box；
Generator, the generator is arranged on the pylon；
Above-mentioned hydraulic control system, the hydraulic control system is arranged into described from the cabin downward along the pylon
Generator, by the power that the cabin is obtained the generator is delivered to.
Hydraulic control system provided in an embodiment of the present invention, it is real by the design of hydraulic pump, hydraulic motor and hydraulic channel
The long range power transmission between the generator on from cabin to pylon is showed.
The hydraulic control system that the present embodiment is provided, at the same disclosure satisfy that generator breaking down, impeller normal rotation
When, the energy produced by impeller is preserved to greatest extent, and be short of power to keep generator in rated speed in hydraulic motor
During lower operating, compensated by accumulator, make generator reach rated speed, stable electric generation acc power can be played a part of；With
The stable output for being realized electric energy by current transformer at this stage is compared, and the accumulator in the present invention can preferably stablize blower fan and turn
Speed, realizes the stable output of electric energy.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to make needed for the embodiment of the present invention
Accompanying drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structural representation of the hydraulic control system of the embodiment of the present invention.
Fig. 2 is the structural representation of the wind power generating set of the embodiment of the present invention.
Fig. 3 is the structural representation of the hydraulic control system of the embodiment of the present invention.
Fig. 4 is the schematic flow sheet of the hydraulic control system of the embodiment of the present invention.
In figure：
1st, wheel hub；2nd, cabin；3rd, pylon；4th, generator；5th, fuel tank；6th, cooler；7th, hydraulic pump；8th, the first check valve；
9th, the 3rd check valve；10th, overflow valve；11st, the second check valve；12nd, hydraulic motor；13rd, reversal valve；14th, relay；15th, accumulation of energy
Device；16th, gear-box；21st, the first hydraulic channel；22nd, the second hydraulic channel；23rd, double-direction control passage；231st, energy storage passage；
232nd, letting out can passage；233rd, commutate passage；100th, hydraulic control system.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
The feature and exemplary embodiment of various aspects of the invention is described more fully below.In following detailed description
In, it is proposed that many details, to provide complete understanding of the present invention.But, to those skilled in the art
It will be apparent that the present invention can be implemented in the case of some details in not needing these details.Below to implementing
The description of example is just for the sake of by illustrating that the example of the present invention is better understood to provide to the present invention.The present invention is never limited
In any concrete configuration and algorithm set forth below, but cover under the premise of without departing from the spirit of the present invention element,
Any modification, replacement and the improvement of part and algorithm.In the the accompanying drawings and the following description, known structure and skill is not shown
Art, to avoid that unnecessary obscuring is caused to the present invention.
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Below with reference to the accompanying drawings and in conjunction with the embodiments describing the application in detail.
Fig. 1, Fig. 3 show a kind of hydraulic control system of a preferred embodiment of the present invention.The hydraulic control system 100,
For wind power generating set, including：Hydraulic pump 7, hydraulic motor 12, the first hydraulic channel 21, the second hydraulic channel 22.
Hydraulic pump 7, gear-box 16 is driven to be mounted in the cabin 2 on the top of pylon 3 by the high speed shaft of gear-box 16；Liquid
Pressure motor 12 is used to drive generator 4, generator 4 to be arranged on pylon 3；First hydraulic channel 21, connects hydraulic motor 12
Outlet and the entrance of hydraulic pump 7, for oil return；Second hydraulic channel 22, the connection outlet of hydraulic pump 7 and entering for hydraulic motor 12
Mouthful, for fuel feeding.
Gear-box 16 drives operating by the wheel hub of impeller, then by the accelerating function of gear-box 16, by gear-box 16
High speed shaft export high rotating speed, so as to drive hydraulic pump 7 to operate；Hydraulic pump 7 promotes hydraulic oil to supply along the second hydraulic channel 22
Hydraulic motor 12 is given, so as to drive hydraulic motor 12 to operate；Hydraulic motor 12 drives the rotor operating of generator 4, and then makes
Generator 4 generates electricity and exports electric energy；The hydraulic oil that hydraulic motor 12 is exported is back to hydraulic pump 7 by the first hydraulic channel 21, from
And realize the loop control of whole hydraulic control system 100.
Because hydraulic pump 7 is located inside the cabin 2 on the top of pylon 3, hydraulic motor 12 is located at 4, generator on pylon 3
Put, there is relatively long distance between hydraulic pump 7 and hydraulic motor 12.It is different according to the size of wind power generating set, hydraulic pump 7 with
The distance of hydraulic motor 12 can reach tens meters of even rice up to a hundred.
The hydraulic control system 100 provided using the present invention, realizes the top cabin 2 of pylon 3 from wind power generating set
In gear-box to pylon 3 on generator 4 long range power transmission, adopt gear with the wind power generating set of prior art
The mode for entering action edge transmission is compared, and simple structure, efficiency of transmission is high, is not limited by transmission range, solves existing wind-force
The gear drive of generating set can not carry out the problem of long range power transmission.
Selectively, generator 4 is arranged on the middle part or bottom of pylon 3, now can be provided by the embodiment of the present invention
Hydraulic control system 100 carry out bigger distance power transmission.
The implication of relevant technical terms in the embodiment of the present invention：
The middle part of pylon, is that for whole pylon, including pylon centre position length (or height) is whole tower
The region of frame length (or height) 1/3；
The bottom of pylon, is that for whole pylon, including pylon lower position length (or height) is whole tower
The region of frame length (or height) 1/3；
Alternatively, the hydraulic control system 100, also including fuel tank 5, fuel tank 5 is located on the first hydraulic channel 21, fuel tank 5
One end and hydraulic motor 12 outlet, the other end connects with the entrance of hydraulic pump 7.Fuel tank 5 is used to store hydraulic control
The circulation hydraulic oil of system 100, the hydraulic oil storage that hydraulic motor 12 can be exported, and supply hydraulic pump 7 and extract.
Alternatively, the hydraulic control system 100, also including accumulator 15, accumulator 15 is arranged in pylon 3.
Accumulator 15 is connected by double-direction control passage 23 with the second hydraulic channel 22, for the energy storage for producing in impeller
Store away, and be discharged into when 4 rotating speed of compensated dynamo is needed in the second hydraulic channel 22.
The rotating speed of generator 4 or hydraulic motor 12 is detected by rotation speed detection unit；Rotating speed measring list is received by controller
The tach signal of unit, and accumulator 15 is controlled according to tach signal.
Preferably, rotation speed detection unit is speed probe.
As shown in figure 4, specifically, the control method of accumulator 15, including：
When the rotating speed of generator 4 or hydraulic motor 12 exceedes rated speed, control accumulator 15 is from the second hydraulic channel
22 acquisition energy are simultaneously stored；
When the rotating speed of generator 4 or hydraulic motor 12 is less than rated speed, control accumulator 15 is to the second hydraulic channel
22 release energy, and make generator 4 or the rotating speed of hydraulic motor 12 reach rated speed.
When the rotating speed of generator 4 exceedes rated speed, start accumulator 15, ensure generator 4 in rated speed operating
On the premise of, the part energy of impeller is stored；When the rotating speed of generator 4 is less than rated speed, start accumulator 15,
The wind energy that accumulator 15 and impeller are produced is set to drive generator 4 to rotate simultaneously so that generator 4 reaches rated speed, so as to reach
To full hair-like state, it is ensured that generator 4 runs well, power generating quality is lifted.
As shown in figure 4, specifically, the control method of accumulator 15, also includes：
When generator 4 is in malfunction, control accumulator 15 is from the second hydraulic channel 22 obtains energy and storage
Come.Accumulator 15 in this hydraulic control system can not only the accumulation of energy in blower fan normal work, when generator 4 damage or send out
When the mal-operation of motor 4 or generator failure lamp situation, impeller can normal rotation, accumulator 15 can be by impeller
The energy storage of generation gets up, and after 4 normal work of generator, generates electricity for driving generator 4 to rotate.
The double-direction control passage 23 being connected with accumulator 15, including：Energy storage passage 231, let out can passage 232 and commutation passage
233, the effect of wherein energy storage passage 231 be by the fuel feeding of hydraulic pump 7 to accumulator 15, let out can the effect of passage 232 be by accumulation of energy
Device 15 is to the fuel feeding of hydraulic motor 12.Energy storage passage 231, let out and can be connected with commutation passage 233 after the parallel connection of passage 232, when energy storage it is logical
When road 231 is opened, let out energy passage 232 and be closed, when the energy opening of passage 232 is let out, energy storage passage 231 is in closes shape
State.
The hydraulic control system that the present embodiment is provided, by the design to double-direction control passage 23, can control accumulator
15 complete energy storage and let out two kinds of working conditions of energy.
The hydraulic control system that the present embodiment is provided, at the same disclosure satisfy that generator breaking down, impeller normal rotation
When, the energy produced by impeller is preserved to greatest extent, and be short of power to keep generator 4 in rated speed in hydraulic motor
During lower operating, compensated by accumulator 15, make generator reach rated speed, the power of stable generator 4 can be played a part of.
In order to further improve above-mentioned design, energy storage passage 231 is provided with the first check valve 8, for controlling hydraulic pump 7 pairs
The unidirectional fuel feeding of accumulator 15, prevents hydraulic oil from springing back over hydraulic pump 7 along energy storage passage 231 in thermal energy storage process；Preferably,
First check valve 8 is hydraulic control one-way valve, is started when the inlet pressure of the first check valve 8 is more than rated value, and specifically this is specified
Value is corresponding with the rated speed of generator 4, when the rotating speed of generator 4 exceedes rated speed, the inlet pressure of the first check valve 8
More than rated value, now the first check valve 8 is opened；
Let out energy passage 232 and be provided with the second check valve 11, for controlling unidirectional fuel feeding of the accumulator 15 to hydraulic motor 12,
Prevent hydraulic oil during energy is let out along let out can passage 232 spring back over accumulator 15；Preferably, the second check valve 11 is automatically controlled
Check valve, the second check valve 11 is controlled to be opened or closed, or the aperture of the second check valve 11 of adjustment, so that generating set 4
When rotating speed is less than rated speed, the second check valve 11 of control is opened, and compensates the hydraulic pressure of the second hydraulic channel 22, promotes generating set
4 rotating speed reaches rated speed.
Reversal valve 13 and relay 14 are provided with commutation passage 233, relay 14 is used for when the energy in accumulator 15
When overstepping the extreme limit, relay 14 works, and drives the transposition pressure release of reversal valve 13, it is ensured that the normal work of accumulator 15；Preferably, commutate
Valve 13 is two position three way directional control valve.
Overflow valve 10 is additionally provided with energy storage passage 231, overflow valve 10 is located on the passage in the downstream of the first check valve 8.Energy storage
Overflow valve 10 on passage 231, aids in the first check valve 8 to reach the effect of security control, when the energy storage of accumulator 15 reaches maximum
During value, unnecessary fluid power is released by overflow valve 10, so as to ensure that generator 4 works under rated speed, it is to avoid generate electricity
The overspeed operation of machine 4.
Hydraulic control system 100, also includes：Fuel tank 5, is located on the first hydraulic channel 21, one end and the hydraulic pressure horse of fuel tank 5
Up to 12 outlet, the other end is connected with the entrance of hydraulic pump 7, and the outlet of overflow valve 10 is connected with fuel tank 5, so that overflow
The hydraulic oil of valve 10 avoids wasting, and ensures that the hydraulic oil total amount in whole hydraulic control system keeps constant.
The 3rd check valve 9 is provided with the second hydraulic channel 22, for controlling unidirectional confession of the hydraulic pump 7 to hydraulic motor 12
Oil；When generator 4 breaks down, the tube wall of the 3rd check valve 9, so as to carry out energy storage to accumulator 15；Preferably, the 3rd is unidirectional
Valve is hydraulic control one-way valve.
Energy storage passage 231 is connected in the upstream passageway of the 3rd check valve 9, when the 3rd check valve 9 is closed, can be started
The first check valve 9 on energy storage passage 231 is to the energy storage of accumulator 15；Let out can passage 232 be connected to the 3rd check valve 9 downstream lead to
On road, let out can compensate when, let out can passage 232 only second hydraulic channel 22 in the downstream of the 3rd check valve 9 is compensated, it is to avoid
Let out energy hypertonia to backwash to the second hydraulic channel 22 of the upstream of the 3rd check valve 9, the first check valve 9 not only can ensured just
Often work, it can also be ensured that the normal operation of hydraulic pump 7.
When generator 4 breaks down, now generator 4 stops operating, and the pressure in hydraulic motor this oil circuit can be more
Come bigger, now the 3rd check valve 9 is closed, the first check valve 8 is opened, and control the second check valve 11 to close, now by impeller
The energy of generation is saved in accumulator 15.
Alternatively, hydraulic control system 100, also including cooler 6.Cooler 6 be arranged on fuel tank 5 and hydraulic pump 7 it
Between the first hydraulic channel 21 on, for cooling down to the fluid on the first hydraulic channel 21.
As shown in Fig. 2 the embodiment of the present invention also provides a kind of wind power generating set, including basis, pylon 3, cabin 2, send out
Motor 4 and hydraulic control system provided in an embodiment of the present invention 100.Wherein, on the basis of pylon 3 is fixedly mounted on；Cabin 2 is consolidated
Dingan County is mounted in the top of pylon 3, and engine room inside is provided with gear-box 16；Generator 4 is arranged on pylon 3, hydraulic control system 100
Generator 4 is arranged into downward along pylon 3 from cabin 2, the power that cabin 2 is obtained is delivered to into generator 4.
The hydraulic control system 100 includes：Hydraulic pump 7, hydraulic motor 12, the first hydraulic channel 21, the second hydraulic channel
22。
Hydraulic pump 7 is driven by the high speed shaft of gear-box 16；Hydraulic motor 12 is used to drive generator 4；First hydraulic channel
21, the outlet of hydraulic motor 12 and the entrance of hydraulic pump 7 are connected, for oil return；Second hydraulic channel 22, connects hydraulic pump 7
Outlet and the entrance of hydraulic motor 12, for fuel feeding.
Wind power generating set provided in an embodiment of the present invention, using hydraulic pump 7, hydraulic motor 12 and liquid therebetween
Pressure passageway, realizes the long range power transmission of generator 4 from the gear-box on the top of pylon 3 to the middle and lower part of pylon 3, and existing
The wind power generating set of technology is entered by the way of action edge is transmitted to compare using gear, and simple structure, efficiency of transmission is high, is not transmitted
The restriction of distance, solving the problems, such as the gear drive of existing wind power generating set can not carry out long range power transmission.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or replacement all should be included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
The protection domain of requirement is defined.
Claims (20)
1. hydraulic control system (100), for wind power generating set, it is characterised in that include：
Hydraulic pump (7), drives hydraulic pump (7), the gear-box (16) to be mounted on pylon by the high speed shaft of gear-box (16)
(3) in the cabin (2) on top；
Hydraulic motor (12), for driving generator (4), the generator (4) is on pylon (3)；
First hydraulic channel (21), connects the outlet of the hydraulic motor (12) and the entrance of the hydraulic pump (7), for returning
Oil；
Second hydraulic channel (22), connects the outlet of the hydraulic pump (7) and the entrance of the hydraulic motor (12), for supplying
Oil.
2. hydraulic control system (100) as claimed in claim 1, it is characterised in that
The generator (4) is installed in the middle part or bottom of the pylon (3).
3. hydraulic control system (100) as claimed in claim 1, it is characterised in that also include：
Fuel tank (5), is located on first hydraulic channel (21), and one end of the fuel tank connects with the outlet of hydraulic motor (12)
Logical, the other end is connected with the entrance of the hydraulic pump (7).
4. hydraulic control system (100) as claimed in claim 1, it is characterised in that also include：
Rotation speed detection unit, for detecting the rotating speed of the generator (4) or the hydraulic motor (12)；
Accumulator (15), is connected by double-direction control passage (23) with second hydraulic channel (22)；
Controller, receives the tach signal of the rotation speed detection unit, and controls the accumulator (15) according to tach signal.
5. hydraulic control system (100) as claimed in claim 4, it is characterised in that
The accumulator (15) is controlled according to tach signal, including：
When the rotating speed of the generator (4) or the hydraulic motor (12) exceedes rated speed, the accumulator (15) is controlled
Energy is obtained from second hydraulic channel (22) and store；
And/or, when the rotating speed of the generator (4) or the hydraulic motor (12) is less than rated speed, control the accumulation of energy
Device (15) to second hydraulic channel (22) releases energy, and makes the rotating speed of the generator (4) or the hydraulic motor (12)
Reach rated speed.
6. hydraulic control system (100) as claimed in claim 4, it is characterised in that
Accumulator (15) is controlled according to tach signal, is also included：
When the generator (4) is in malfunction, controls the accumulator (15) and obtain from second hydraulic channel (22)
Obtain energy and store.
7. hydraulic control system (100) as described in one of claim 4-6, it is characterised in that
The accumulator (15) is in the pylon (3).
8. hydraulic control system (100) as described in one of claim 4-6, it is characterised in that
The double-direction control passage (23), including：
From the hydraulic pump (7) fuel feeding to the energy storage passage (231) of the accumulator (15) and from the accumulator (15) to institute
Stating letting out for hydraulic motor (12) fuel feeding can passage (232).
9. hydraulic control system (100) as claimed in claim 8, it is characterised in that
The energy storage passage (231) is provided with the first check valve (8), for controlling the hydraulic pump (7) to the accumulator
(15) unidirectional fuel feeding；
Energy passage (232) of letting out is provided with the second check valve (11), for controlling the accumulator (15) to the hydraulic pressure horse
Up to the unidirectional fuel feeding of (12).
10. hydraulic control system (100) as claimed in claim 9, it is characterised in that
First check valve (8) is hydraulic control one-way valve.
11. hydraulic control systems (100) as claimed in claim 9, it is characterised in that
Second check valve (11) is electric control one-way valve.
12. hydraulic control systems (100) as claimed in claim 9, it is characterised in that
Overflow valve (10) is additionally provided with the energy storage passage (231), the overflow valve (10) is under first check valve (8)
On the passage of trip.
13. hydraulic control systems (100) as claimed in claim 12, it is characterised in that also include：Fuel tank (5), is located at described
On first hydraulic channel (21), one end of the fuel tank and the outlet of hydraulic motor (12), the other end and the hydraulic pump
(7) entrance connection, the outlet of the overflow valve (10) is connected with the fuel tank (5).
14. hydraulic control systems (100) as claimed in claim 8, it is characterised in that
The double-direction control passage (23), also includes：
Commutation passage (233), the energy storage passage (231), it is described let out can passage (232) parallel connection after with the commutation passage
(233) connect；Reversal valve (13) and relay (14) are provided with commutation passage (233), the relay (14) is used for
When the energy in the accumulator (15) oversteps the extreme limit, relay (14) work drives reversal valve (13) transposition
Pressure release.
15. hydraulic control systems (100) as claimed in claim 14, it is characterised in that
The reversal valve (13) is two position three way directional control valve.
16. hydraulic control systems (100) as claimed in claim 12, it is characterised in that
The 3rd check valve (9) is provided with the second hydraulic channel (22), for controlling the hydraulic pump (7) to the hydraulic motor
(12) unidirectional fuel feeding.
17. hydraulic control systems (100) as claimed in claim 16, it is characterised in that
3rd check valve (9) is hydraulic control one-way valve.
18. hydraulic control systems (100) as claimed in claim 17, it is characterised in that the energy storage passage (231) is connected to
In the upstream passageway of the 3rd check valve (9)；It is described to let out the downstream that energy passage (232) is connected to the 3rd check valve (9)
On passage.
19. hydraulic control systems (100) as claimed in claim 3, it is characterised in that also include：
Cooler (6), is arranged on first hydraulic channel (21) between the fuel tank (5) and the hydraulic pump (7).
20. wind power generating sets, it is characterised in that include：
Pylon (3)；
Cabin (2), is fixedly mounted on the top of the pylon (3), and inside the cabin (2) gear-box (16) is provided with；
Generator (4), the generator (4) is on the pylon (3)；
Hydraulic control system (100) as described in one of claim 1-19, the hydraulic control system (100) is from the cabin
(2) generator (4) is arranged into downward along the pylon (3), the power that the cabin (2) is obtained is delivered to described
Generator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144738.0A CN106640527A (en) | 2016-12-12 | 2016-12-12 | Hydraulic control system and wind power generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611144738.0A CN106640527A (en) | 2016-12-12 | 2016-12-12 | Hydraulic control system and wind power generating set |
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| CN106640527A true CN106640527A (en) | 2017-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611144738.0A Pending CN106640527A (en) | 2016-12-12 | 2016-12-12 | Hydraulic control system and wind power generating set |
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| CN (1) | CN106640527A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107630787A (en) * | 2017-08-28 | 2018-01-26 | 西安理工大学 | A kind of floating marine wind power generation plant with constant pressure liquid energy storage |
| CN110821759A (en) * | 2019-12-13 | 2020-02-21 | 北京三力新能科技有限公司 | Hydraulic variable propeller fault rapid positioning and safe shutdown method |
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| CN101929441A (en) * | 2010-08-23 | 2010-12-29 | 大连星火新能源发展有限公司 | Hydraulic transmission wind generator set |
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| CN107630787B (en) * | 2017-08-28 | 2019-05-28 | 西安理工大学 | A kind of floating marine wind power generation plant with constant pressure liquid energy storage |
| CN110821759A (en) * | 2019-12-13 | 2020-02-21 | 北京三力新能科技有限公司 | Hydraulic variable propeller fault rapid positioning and safe shutdown method |
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