CN1556570A - Protective method of oscillaton water column type wave energy device turbine electric generator set - Google Patents
Protective method of oscillaton water column type wave energy device turbine electric generator set Download PDFInfo
- Publication number
- CN1556570A CN1556570A CNA2004100150166A CN200410015016A CN1556570A CN 1556570 A CN1556570 A CN 1556570A CN A2004100150166 A CNA2004100150166 A CN A2004100150166A CN 200410015016 A CN200410015016 A CN 200410015016A CN 1556570 A CN1556570 A CN 1556570A
- Authority
- CN
- China
- Prior art keywords
- water column
- turbo
- wave energy
- energy
- column type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/141—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy with a static energy collector
- F03B13/142—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy with a static energy collector which creates an oscillating water column
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention relates to a wave energy conversion system, especially relates to turbo generating machine protection method by using oscillating water column wave energy conversion system. In the oscillating water column wave energy conversion system, the conversion is completed by the air room, turbo, and electric machine, the relation of the turbo and the machine is coaxial connection, there have not other parts or devices between them, the rotating direction, speed and time and phase of the turbo and the electric machine are consistent totally. Thus the energy absorption conversion efficiency of the system is reduced, which is the main problem of current system. The invention arranges three middle sections between the turbo and the electric machine: buffer energy saving section, safety clutch, and overpass clutch. The method can upgrade the output electric energy quality, at the same time; it can reduce the negative work consumption when the electric machine is in motor state.
Description
Technical field
The present invention relates to a kind of Wave energy conversion system, particularly a kind of turbine power generation unit guard method that is used in the oscillating water column wave energy conversion system.
Background technology
Usually, in oscillaton water column type (OWC) wave energy conversion system, finish the conversion of wave energy → mechanical energy → electric energy by air chamber, turbine, motor, wherein turbine is coaxial connection with the relation of motor, do not have other equipment or parts between the two, the rotation direction of turbine and motor, speed, time, phase place are in full accord.Simultaneously, aspect the employing of motor,, adopt asynchronous machine to finish the conversion of mechanical energy → electric energy usually because the particularity of wave energy causes turbine speed to change greatly, and considers the transportation problem of electric energy.The characteristic of asynchronous machine is when its rotating speed surpasses synchronous speed, is in the generator operating state, to extraneous electrical network output energy; When rotating speed is lower than synchronous speed, be in the motor operating state, need absorb energy, promptly do negative work from extraneous electrical network.Because the variation of turbine speed is very frequent, causes motor to be changed between generator and motor operating state continually.Even at generating state, the voltage waveform that sends also is the pulse type that is sharp-pointed, and the quality of power supply is very poor; Problem is to be lower than synchronous speed when turbine speed on the other hand, when motor is in electric motor state, because the hard connection between turbine and the motor, turbine is equivalent to the load of motor again, not only do not have the output of electric energy, expended every loss of motor self, also added a turbine load.During the generator state, the quality of power supply is poor, during electric motor state, extra load is arranged again, makes the energy absorption conversion efficiency of system itself reduce, or even " unable to make ends meet ", and this is the fatal hard defects that present most of oscillaton water column type wave energy utilizes system to exist.
The object of the present invention is to provide and a kind ofly can improve the output quality of power supply, the method for the negative work loss when reducing motor simultaneously and being in electric motor state.
Summary of the invention
In order to reach described purpose, the present invention provides three intermediate links between turbine and motor:
First buffering accumulation of energy link, constitute by rubber flexible coupling or spring-elastic shaft coupling, purpose is tentatively to eliminate the incoming flow energy spikes, and it is temporary by elastomeric element portion of energy, when coming stream energy to be in trough, discharge again, promptly increased the link of a mechanical energy → elastic potential energy → mechanical energy.
It two is an overload clutch, and purpose is to limit an incoming flow crest maximum, when coming stream energy greater than set point, and the part that overload clutch will be pruned and surpass.(be bigger than the peak value that motor can bear sometimes) when considering stream energy too big and tend to make system-down; and the frequent shutdown-starting of motor causes whole system stability and fail safe to reduce; though the employing of overload clutch makes energy that partial loss be arranged, make the stability of a system and fail safe improve greatly.
It three is a freewheel clutch, its effect is exactly when turbine speed is lower than the synchronous speed of asynchronous machine, make turbine and motor be in the automatic state that separates, though motor is in motoring, but the energy of actual consumption only is the loss of motor itself, and it is minimum that system capacity consumption is reduced to; And when turbine speed was higher than the synchronous speed of asynchronous machine and is lower than the set point of overload clutch, freewheel clutch just can deliver power to motor, drove electric power generation.
Description of drawings
Fig. 1 is traditional oscillaton water column type wave power device turbine power generation unit;
Fig. 2 is novel oscillaton water column type wave power device turbine power generation unit;
Among the figure: 1-turbine, 2-motor, 3-spring coupling
The 4-friction plate, the 5-freewheel clutch.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail.
As shown in the figure: turbine 1, spring coupling 3, friction plate 4, freewheel clutch 5,2 five whole order coaxial connections of part of motor; The compressed air that turbine 1 receives from air chamber, under the promotion of air-flow, run up, finish the conversion of wave energy → mechanical energy, spring coupling 3 turns round under the drive of turbine 1, existing mechanical energy is held flexible potential energy again, friction plate 4 passes at turbine 1 and spring coupling 3 when the speed of coming surpasses set point too soon skidding can take place, unnecessary energy is discharged by this form, freewheel clutch 5 then at turbine 1 through spring coupling 3, when the rotating speed that friction plate 4 biographies are come is lower than the synchronous speed of asynchronous machine, separate motor 2 and aforementioned part, when the rotating speed of coming when biography is higher than the synchronous speed of asynchronous machine, freewheel clutch delivers power to motor, drives electric power generation.
Claims (3)
1, a kind of oscillaton water column type wave power device turbine power generation unit guard method is characterized in that this method is that three intermediate links are set between turbine (1) and motor (2):
By buffering accumulation of energy link, the overload clutch of rubber flexible coupling (3) formation, and freewheel clutch (5).
2, according to a kind of oscillaton water column type wave power device turbine power generation unit guard method described in the claim 1, it is characterized in that described buffering accumulation of energy link, constitute by the spring-elastic shaft coupling.
3, according to a kind of oscillaton water column type wave power device turbine power generation unit guard method described in the claim 1, it is characterized in that described overload clutch can be wearing piece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100150166A CN100367616C (en) | 2004-01-05 | 2004-01-05 | Protective method of oscillaton water column type wave energy device turbine electric generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100150166A CN100367616C (en) | 2004-01-05 | 2004-01-05 | Protective method of oscillaton water column type wave energy device turbine electric generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556570A true CN1556570A (en) | 2004-12-22 |
| CN100367616C CN100367616C (en) | 2008-02-06 |
Family
ID=34351278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100150166A Expired - Fee Related CN100367616C (en) | 2004-01-05 | 2004-01-05 | Protective method of oscillaton water column type wave energy device turbine electric generator set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100367616C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431144A (en) * | 2020-03-17 | 2020-07-17 | 神华神东电力有限责任公司 | Generator protection device and method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO172307C (en) * | 1991-01-31 | 1993-06-30 | Dyno Ind As Sivile Sprengstoff | SYSTEM FOR UTILIZATION OF ENERGY IN WATER WAVES, COMPREHENSIVE FLOW BODIES CONNECTED WITH WEIGHT |
| DE19504356A1 (en) * | 1995-02-10 | 1996-08-14 | Oejvind Boltz | Multiple system wave energy converter for electricity generation |
-
2004
- 2004-01-05 CN CNB2004100150166A patent/CN100367616C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111431144A (en) * | 2020-03-17 | 2020-07-17 | 神华神东电力有限责任公司 | Generator protection device and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100367616C (en) | 2008-02-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102966336B (en) | Wind power direct-driven oil pumper | |
| CN101657609A (en) | Be used to move the method for power plant equipment | |
| CN102916453A (en) | Energy management control system | |
| CN115419542A (en) | Pumped storage unit | |
| WO2024207738A1 (en) | Multi-electric-motor combined scraper conveyor and control method therefor | |
| CN102654105B (en) | Separating flexible speed increasing device based on inner-curve hydraulic motor | |
| CN1556570A (en) | Protective method of oscillaton water column type wave energy device turbine electric generator set | |
| CN102384055B (en) | Low-rotating-speed plunger pump device and wind power generation device applying same | |
| CN201739098U (en) | Wind driven generator blade stretching structure | |
| CN105545770A (en) | Shafting capable of achieving steam-electric alternate drive and combined drive of large-scale static-blade adjustable axial flow fan | |
| CN111287805A (en) | High-efficient nimble vapour electricity hybrid power equipment | |
| CN109403921A (en) | A kind of half direct-drive beam pumping unit | |
| CN212454554U (en) | High-efficient nimble vapour electricity hybrid power equipment | |
| CN102536687A (en) | Low-flow-rate no-load starting device for fans or tide power generation mechanisms | |
| CN101013880A (en) | Special frequency converter for oil pumping unit | |
| CN202467946U (en) | Low-pressure saturated steam recycling apparatus | |
| CN208268070U (en) | A kind of converting operation device of desulfurization roots blower | |
| CN201319576Y (en) | Special frequency-conversion feedback energy-saving device for oil pumping unit in oil field | |
| CN201459393U (en) | Energy-saving adjustment device of electric sewing machine | |
| CN201474839U (en) | Water circulation system with water-pump excess energy recovery device | |
| CN111980841A (en) | High-efficient hydraulic turbine double-movable guide vane device | |
| CN204493082U (en) | A kind of wind-power electricity generation configuration-system | |
| CN113006895B (en) | Method and system for reducing station power consumption rate of power plant | |
| CN2764049Y (en) | Semi-automatic generator | |
| CN201869148U (en) | Switching device for coil connection of permanent magnet wind driven generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |