CN208122994U - A kind of compact controllable power generation device from sea current - Google Patents
A kind of compact controllable power generation device from sea current Download PDFInfo
- Publication number
- CN208122994U CN208122994U CN201820210016.9U CN201820210016U CN208122994U CN 208122994 U CN208122994 U CN 208122994U CN 201820210016 U CN201820210016 U CN 201820210016U CN 208122994 U CN208122994 U CN 208122994U
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- CN
- China
- Prior art keywords
- planetary gear
- rear side
- power generation
- ocean current
- gear mechanism
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- 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.)
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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
- Y02E10/20—Hydro energy
-
- 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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The utility model discloses a kind of compact controllable power generation device from sea current to export the electrical power that the when Variable power of ocean current impeller is converted into generator by using double cascade planetary gear trains and control motor.By efficiently controlling the revolving speed of control motor, ocean current impeller can be made to track optimal tachometer value in real time, so that unit operates on best power point, realize maximum ocean current power capture；Meanwhile the revolving speed for being input to generator can be made to keep stablizing, so that generator long-play is between high efficient area.
Description
Technical field
The utility model relates to a kind of technical field of power generation, especially ocean current energy generator.
Background technique
The reserves of energy by ocean current are big, and energy density is high, and predictability is strong, have been increasingly becoming and have solved energy crisis and weather change
The new industry of the global problems such as warm.Energy by ocean current generating set be it is a kind of by seawater flow in the kinetic energy that is contained be converted to electric energy
Novel power generation device.Wherein, trunnion axis ocean current generator group primary energy capture rate is high, and mechanical mechanism is compact, current
It occupies an leading position on domestic and international market.Horizontal axial type ocean current generator group can also be divided into machinery according to the difference of the kind of drive
Gearbox drive unit and hydraulic drive unit；Whether it is connected by gear-box according to impeller and generator (or hydraulic pump),
It is divided into direct-drive unit and half direct-drive type unit.
Ocean current generator group based on gearbox drive realizes step-up drive, Wu Fayou using the gear-box of fixed gear ratio
Effect ground realizes that generating unit speed is controlled and adjusted with the variable speed of ocean current flow velocity, therefore in terms of MPPT maximum power point tracking
It needs to be further improved.Based on the straight ocean current generator group for driving transmission, that there are direct driving motor volumes is excessive, copper consumption is high, is fabricated to
A series of problems, such as this is excessively high.Although solve asking for gearbox drive high failure rate based on hydraulicdriven ocean current generator group
Topic, but the whole efficiency of unit is obviously more relatively low than purely mechanic transmission, and there is also the leakages of high pressure liquid pressure oil and a large amount of pollutions etc. to ask
Topic.
Therefore, there is a degree of ask with control mode in all kinds of transmissions used by existing energy by ocean current generating set
Topic and disadvantage, for example efficiency is relatively low, volume is bigger than normal, cost is excessively high and hydraulic contamination etc., and the solution of these problems is also required to one
Not only transmission efficiency with higher is planted, but also is capable of the novel transmission mode of variable speed control.
Utility model content
The technical problems to be solved in the utility model is：Improve and promoted the transmission side of current energy by ocean current generating set
Formula makes it variable speed continuous operation, and all has higher transmission efficiency under any ocean current state.
The solution that the utility model solves its technical problem is：A kind of compact controllable power generation device from sea current, including
Casing, the casing are externally provided with ocean current impeller, include in the casing first planetary gear mechanism, the second planetary gear mechanism with
Permanent magnet generator, the first planetary gear mechanism are located at the front of the second planetary gear mechanism, the ocean current impeller and first
Planetary gear mechanism connection, the first planetary gear mechanism are connect with the second planetary gear mechanism, second planetary gear
Mechanism is connect with permanent magnet generator, further includes control motor, the control motor and the second planetary gear mechanism 3 in the casing
It is drivingly connected.
As a further improvement of the above technical scheme, the first planetary gear mechanism includes front side planet carrier, front side
Planetary gear, front side sun gear, second planetary gear mechanism include rear side sun gear, rear side planet carrier and rear side planetary gear,
The ocean current impeller is fixedly connected with front side sun gear, and the front side planetary gear is fixedly connected with rear side planetary gear 33, after described
Side sun gear and permanent magnet generator are drivingly connected, and the rear side planet carrier is connect with control motor driven.
As a further improvement of the above technical scheme, the control motor includes motor output shaft, the permanent magnet generator
Machine includes power generation input shaft, and the motor output shaft is fixedly connected with rear side planet carrier, the power generation input shaft and the rear side sun
Wheel is fixedly connected；The electronic output shaft is hollow shaft, and the power generation input shaft runs through the motor input shaft.
The utility model has the beneficial effects that：The utility model is by the planetary gear using two-stage to the biography for carrying out energy
It passs, and control speed regulation is carried out to second level planetary gear using control motor, by efficiently controlling the revolving speed of control motor,
Ocean current impeller can be made to track optimal tachometer value in real time, so that unit operates on best power point, realized most
Big ocean current power capture, meanwhile, the revolving speed for being input to generator can be made to keep stablizing, so that generator long-play
Between high efficient area.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described.Obviously, described attached drawing is a part of the embodiment of the utility model, rather than complete
Portion's embodiment, those skilled in the art without creative efforts, can also be obtained according to these attached drawings it
His design scheme and attached drawing.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the transfer control principle schematic diagram of the control motor of the utility model.
Specific embodiment
It is carried out below with reference to technical effect of the embodiment and attached drawing to the design of the utility model, specific structure and generation
It clearly and completely describes, to be completely understood by the purpose of this utility model, feature and effect.Obviously, described embodiment
It is a part of the embodiment of the utility model, rather than whole embodiments, it is based on the embodiments of the present invention, the skill of this field
Art personnel other embodiments obtained without creative efforts belong to the model of the utility model protection
It encloses.In addition, all connection/connection relationships being previously mentioned in text, not singly refer to that component directly connects, and referring to can be according to specific reality
Situation is applied, by adding or reducing couple auxiliary, to form more preferably coupling structure.Each technology in the invention is special
Sign, can be with combination of interactions under the premise of not conflicting conflict.
Referring to Fig.1, a kind of compact controllable power generation device from sea current, including casing, the casing are externally provided with ocean current impeller 1,
It include first planetary gear mechanism 2, the second planetary gear mechanism 3 and permanent magnet generator 4, the first planet tooth in the casing
Wheel mechanism 2 is located at the front of the second planetary gear mechanism 3, and the ocean current impeller 1 is connect with first planetary gear mechanism 2, described
First planetary gear mechanism 2 is connect with the second planetary gear mechanism 3, and second planetary gear mechanism 3 connects with permanent magnet generator 4
It connects, further includes control motor 5 in the casing, the control motor 5 and the second planetary gear mechanism 3 are drivingly connected.
When work, when generator in the case that be lower than nominal flow rate, can by adjust in real time ocean current impeller turn
Speed is allowed to track optimum speed, achievees the purpose that maximum power efficiency；It, can be by controlling impeller when being higher than nominal flow rate
Torque plays the vibration of limiting gear system and reduces the purpose of noise.While wheel speed changes in real time, it is input to generator
Revolving speed can keep stablizing in more broad range, enable the long-term efficient operation of generator.
Generator of the invention can be directly incorporated into power grid, without connecting power inverter, so that the structure of unit entirety
Significantly simplified, unit cost is greatly reduced.Meanwhile the present invention only needs simple planetary gear train to realize unit
The variable speed of revolving speed controls, and has compact, speed adjustable range simple for structure extensively and a series of advantages such as efficiency is higher.
It is further used as preferred embodiment, the first planetary gear mechanism includes front side planet carrier 21, front side row
Star-wheel 22, front side sun gear 23, second planetary gear mechanism 3 include rear side sun gear 31, rear side planet carrier 32 and rear side
Planetary gear 33, the ocean current impeller 1 are fixedly connected with front side sun gear 23, and the front side planetary gear 22 and rear side planetary gear 33 are solid
Fixed connection, the rear side sun gear 31 are drivingly connected with permanent magnet generator 4, and the rear side planet carrier 32 drives with control motor 5
Connection.
It is further used as preferred embodiment, the control motor 5 includes motor output shaft, the permanent magnet generator 4
Including the input shaft that generates electricity, the motor output shaft is fixedly connected with rear side planet carrier 32, the power generation input shaft and the rear side sun
Wheel 31 is fixedly connected；The electronic output shaft is hollow shaft, and the power generation input shaft runs through the motor input shaft.
When work, ocean current impeller is fixedly connected with front side sun gear by transmission shaft, for moving the ocean current of capture
The mechanical kinetic energy of gear train can be converted into.Front side sun gear engages connection with front side planetary gear, and front side planetary gear passes through front side
Planet carrier is supported on transmission shaft.Front side planetary gear is fixedly connected with rear side planetary gear, and transfers the motion to control motor
Output shaft in.Rear side planetary gear is meshed with rear side sun gear, and rear side sun gear is fixed with the input shaft of generator simultaneously to be connected
It connects, the latter passes through hollow control motor output shaft, directly drives generator rotation to produce electricl energy, generator and control motor
Structure is more compact.Therefore, the mechanical kinetic energy of system is mainly output in generator via rear sun gear and generator input shaft
Realize power generation, meanwhile, control motor realizes that the continuous change of system is adjusted by its output shaft and rear planetary gear, that is, guarantees power generation
Machine revolving speed remains to keep constant in the case where input speed changes.
The major function of control motor speed control has：1. keeping hair in the entire section of ocean current generator group operation
Motor speed is stablized；2. the revolving speed of main drive shaft is made to be able to maintain optimal tip speed ratio compared with low flow velocity
Value, to realize the best power capture control of low regime；3. when more than specified ocean current flow velocity, so that the revolving speed of generator is kept
For steady state value.
Referring to fig. 2, control motor mainly has two-phase control loop, and a phase is for setting up optimal tachometer valueIn addition
One phase is used for control magnetic flux, is allowed to be maintained at rated valueRotation speed control loop passes through proportional integration rotational speed governor first and obtains
Obtain the reference value of electromagnetic torqueBy it and the true value T that is obtained by torque estimationemIt makes the difference, and difference is passed through into two-phase
Torque controller obtains certain voltage vector, and enters vector C to be selected in vector selection tableT.The motor magnetic flux in another circuit
Controller is first by given flux referenceWith the true value Φ obtained by stator magnetic flux estimationsIt makes the difference, by its difference
Obtaining via the flux guide of two-phase is voltage vector C to be selectedΦ.Vector C to be selectedTAnd CΦVoltage vector is entered simultaneously
Selection table in, control the switch matrix of full-bridge by selecting the output of suitable voltage vector, and therefore realize control motor
Rotation speed regulating and controlling.Clarke transformation in figure is the electricity for electromagnetic torque estimation and the necessary vector space of stator magnetic flux estimation preparation
Stream and voltage vector.
The better embodiment of the utility model is illustrated above, but the invention be not limited to it is described
Embodiment, those skilled in the art can also make various equivalent changes without departing from the spirit of the present invention
Type or replacement, these equivalent variation or replacement are all included in the scope defined by the claims of the present application.
Claims (3)
1. a kind of compact controllable power generation device from sea current, it is characterised in that：Including casing, the casing is externally provided with ocean current impeller
It (1), include first planetary gear mechanism (2), the second planetary gear mechanism (3) and permanent magnet generator (4) in the casing, it is described
First planetary gear mechanism (2) is located at the front of the second planetary gear mechanism (3), the ocean current impeller (1) and the first planet tooth
Mechanism (2) connection is taken turns, the first planetary gear mechanism (2) connect with the second planetary gear mechanism (3), the second planet tooth
Wheel mechanism (3) connect with permanent magnet generator (4), further includes controlling motor (5) in the casing, the control motor (5) and the
Two planetary gear mechanisms (3) are drivingly connected.
2. compact controllable power generation device from sea current according to claim 1, it is characterised in that：The first planetary gear machine
Structure includes front side planet carrier (21), front side planetary gear (22), front side sun gear (23), the second planetary gear mechanism (3) packet
Include rear side sun gear (31), rear side planet carrier (32) and rear side planetary gear (33), the ocean current impeller (1) and front side sun gear
(23) be fixedly connected, the front side planetary gear (22) is fixedly connected with rear side planetary gear (33), the rear side sun gear (31) with
Permanent magnet generator (4) is drivingly connected, and the rear side planet carrier (32) and control motor (5) are drivingly connected.
3. compact controllable power generation device from sea current according to claim 2, it is characterised in that：Control motor (5) packet
Motor output shaft is included, the permanent magnet generator (4) includes power generation input shaft, and the motor output shaft and rear side planet carrier (32) are solid
Fixed connection, the power generation input shaft are fixedly connected with rear side sun gear (31)；The motor output shaft is hollow shaft, the power generation
Input shaft runs through the motor input shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820210016.9U CN208122994U (en) | 2018-02-05 | 2018-02-05 | A kind of compact controllable power generation device from sea current |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820210016.9U CN208122994U (en) | 2018-02-05 | 2018-02-05 | A kind of compact controllable power generation device from sea current |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208122994U true CN208122994U (en) | 2018-11-20 |
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ID=64207100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820210016.9U Expired - Fee Related CN208122994U (en) | 2018-02-05 | 2018-02-05 | A kind of compact controllable power generation device from sea current |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208122994U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331703A (en) * | 2018-02-05 | 2018-07-27 | 佛山科学技术学院 | A kind of compact controllable power generation device from sea current |
| CN111502894A (en) * | 2020-04-26 | 2020-08-07 | 广州纯元科技有限公司 | Hydraulic power generation device capable of automatically radiating heat |
-
2018
- 2018-02-05 CN CN201820210016.9U patent/CN208122994U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108331703A (en) * | 2018-02-05 | 2018-07-27 | 佛山科学技术学院 | A kind of compact controllable power generation device from sea current |
| CN111502894A (en) * | 2020-04-26 | 2020-08-07 | 广州纯元科技有限公司 | Hydraulic power generation device capable of automatically radiating heat |
| CN111502894B (en) * | 2020-04-26 | 2021-07-09 | 赵明星 | Hydraulic power generation device capable of automatically radiating heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20181120 Termination date: 20210205 |