SE524852C2 - Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turns - Google Patents
Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turnsInfo
- Publication number
- SE524852C2 SE524852C2 SE0200613A SE0200613A SE524852C2 SE 524852 C2 SE524852 C2 SE 524852C2 SE 0200613 A SE0200613 A SE 0200613A SE 0200613 A SE0200613 A SE 0200613A SE 524852 C2 SE524852 C2 SE 524852C2
- Authority
- SE
- Sweden
- Prior art keywords
- switchgear
- intermediate station
- voltage
- seabed
- generator sets
- Prior art date
Links
- 238000004804 winding Methods 0.000 title abstract 2
- 230000005611 electricity Effects 0.000 title description 4
- 238000000034 method Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000004146 energy storage Methods 0.000 claims description 4
- 238000004873 anchoring Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000009972 noncorrosive effect Effects 0.000 claims description 3
- 239000004575 stone Substances 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000001419 dependent effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 241000340127 Boloria sipora generator Species 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- 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
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- 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
-
- 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
- F03B13/26—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 tide energy
- F03B13/264—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 tide energy using the horizontal flow of water resulting from tide movement
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- 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
- F03B17/00—Other machines or engines
- F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
-
- F03D11/04—
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- 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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
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- 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
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
- F03D9/255—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor
- F03D9/257—Wind motors characterised by the driven apparatus the apparatus being an electrical generator connected to electrical distribution networks; Arrangements therefor the wind motor being part of a wind farm
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
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- 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
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
- F03D13/256—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation on a floating support, i.e. floating wind motors
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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
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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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
-
- 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
- Y02E10/727—Offshore wind turbines
-
- 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
- Y02E10/728—Onshore wind turbines
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Oceanography (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
25 30 land, vilket avstånd ibland kan vara stort. Föreliggande uppfinning är inriktad på problemet att på ett effektivt sätt överföra energin från generatoraggregaten till ett på land baserat elnät och har som ändamål att uppnå en lösning på detta. 25 30 countries, which distance can sometimes be large. The present invention is directed to the problem of efficiently transferring the energy from the generator sets to a shore-based electricity grid and aims to achieve a solution thereto.
Redogörelse för uppfinningen Det angivna ändamålet har enligt uppfinningens första aspekt ernàtts genom att ett system av det i patentkravets 1 ingress angivna slaget innefattar de speciella sårdragen att systemet innefattar ett flertal ställverk, varvid vardera ställverk är anslutet till ett antal generatoraggregat och att vardera ställverk innefattar en vattentät behållare inrymmande ställverkskomponenter, vilken behållare är förankrad i havsbottnen, och att systemet innefattar en mellanstation till vilken åtminstone några av ställverken är anslutna, vilken mellanstation är ansluten till mottagningsstationen.Description of the invention The stated object has according to the first aspect of the invention been achieved in that a system of the type stated in the preamble of claim 1 comprises the special features that the system comprises a plurality of switchgear, each switchgear being connected to a number of generator sets and each switchgear comprising a waterproof container accommodating switchgear components, which tank is anchored in the seabed, and that the system comprises an intermediate station to which at least some of the switchgear are connected, which intermediate station is connected to the receiving station.
Tack vare ett så utformat system kan ställverket förläggas i nära anslut- ning till generatoraggregaten. Detta medför minimering av förluster och möjliggör att energin från ett flertal generatoraggregat kan överföras via en enda gemen- sam kabel som ansluts till elnätet på land. Systemet medför en helhetslösning där såväl generatoraggregaten och ställverket kan byggas upp som standardiserade moduler med standardiserade komponenter. Förutom en god ekonomi vad gäller såväl uppbyggande som drift av ett system enligt uppfinningen medför det även fördelar ur miljösynpunkt eftersom något behov av att uppföra ställverksbyggnader i miljökänsliga kustområden ej föreligger. Anordnandet av en mellanstation medför att överföringen till land görs på ett enkelt och rationellt sätt genom den därmed åstadkomna centraliseringen av överföringen.Thanks to such a designed system, the switchgear can be located in close proximity to the generator sets. This minimizes losses and enables the energy from a plurality of generator sets to be transferred via a single common cable that is connected to the electricity grid on land. The system entails a complete solution where both the generator sets and the switchgear can be built up as standardized modules with standardized components. In addition to good economy in terms of both construction and operation of a system according to the invention, it also entails advantages from an environmental point of view since there is no need to build switchgear buildings in environmentally sensitive coastal areas. The arrangement of an intermediate station means that the transfer to land is made in a simple and rational manner through the centralization of the transfer thus achieved.
Enligt föredragna utföringsformer av det uppfunna systemet innefattar generatoraggregaten vindkraftaggregat och/eller vågkraftaggregat och/eller av havsströmmar drivna aggregat. Därvid är det normalt de lokala betingelserna som är bestämmande vilka slag av aggregat som är de mest lämpade. I vissa fall kanske endast ett slag av aggregat är aktuellt medan i andra fall en kombination kan vara möjlig och fördelaktig.According to preferred embodiments of the invented system, the generator units comprise wind power units and / or wave power units and / or units powered by sea currents. In this case, it is normally the local conditions that determine which types of units are the most suitable. In some cases only one type of unit may be relevant, while in other cases a combination may be possible and advantageous.
Enligt ytterligare en fördelaktig utföringsform är vardera ställverk anslutet till en på land anordnad mottagningsstation.According to a further advantageous embodiment, each switchgear is connected to a receiving station arranged on land.
Enligt ytterligare en föredragen utföringsform innefattar mellanstationen en vattentät behållare inrymmande elektriska komponenter, vilken behållare är för- 15 20 25 30 (fw l' J) Ja.. t' I) C, I FO 3 ankrad i havsbotten. Genom att även mellanstationen är utformad för förankring i havsbotten ges stor flexibilitet för var den kan lokaliseras så att systemet som hel- het kan optimeras ur lokaliseringssynpunkt.According to a further preferred embodiment, the intermediate station comprises a watertight container accommodating electrical components, which container is pre-anchored in the seabed. Because the intermediate station is also designed for anchoring in the seabed, great flexibility is given for where it can be located so that the system as a whole can be optimized from a location point of view.
Enligt ytterligare en föredragen utföringsform är åtminstone något ställverk och/eller mellanstationen beläget under vattenytan, företrädesvis intill havsbotten.According to a further preferred embodiment, at least some switchgear and / or the intermediate station is located below the water surface, preferably next to the seabed.
Fördelaktigast är därvid om samtliga dessa enheter är belägna på detta sätt.The most advantageous is if all these units are located in this way.
Genom lokaliseringen under vattenytan och speciellt intill havsbotten minimeras störningarna på omgivningen. Systemet kan därför anläggas på platser där det eljest skulle kunna uppstå konflikt med andra intressen såsom fiske, sjöfart och miljö.Due to the location below the water surface and especially next to the seabed, the disturbance to the surroundings is minimized. The system can therefore be installed in places where there could otherwise be a conflict with other interests such as fishing, shipping and the environment.
Enligt ytterligare en föredragen utföringsform innefattar åtminstone något av ställverken, normalt samtliga, en spänningshöjande transformator. Alternativt eller som komplement är en spänningshöjande transformator anordnad i mellan- stationen. Genom att överföra energin på en förhöjd spänningsnivå uppnås en gynnsammare överföring såväl ur teknisk som ekonomisk synvinkel.According to a further preferred embodiment, at least some of the switchgear, normally all of them, comprise a voltage-increasing transformer. Alternatively or as a complement, a voltage-increasing transformer is arranged in the intermediate station. By transferring the energy at an elevated voltage level, a more favorable transfer is achieved from both a technical and economic point of view.
Enligt ytterligare en föredragen utföringsform innefattar ställverken och/eller mellanstationen en omriktare. Därmed kan spänningen gynnsamt över- föras som AC.According to a further preferred embodiment, the switchgear and / or the intermediate station comprise a converter. Thus, the voltage can be favorably transmitted as AC.
Enligt ytterligare en föredragen utföringsform innefattar ställverken och/eller mellanstationen energilagringsorgan. Därmed kan systemet enkelt anpassa levererad effekt i beroende av fluktuationer hos tillgänglig effekt respek- tive effektbehov.According to a further preferred embodiment, the switchgear and / or the intermediate station comprise energy storage means. Thus, the system can easily adapt delivered power depending on fluctuations in available power and power requirements.
Enligt ytterligare en föredragen utföringsform innefattar ställverken och/eller mellanstationen filtreringsorgan för filtrering av utgående och/eller inkom- mande ström och spänning. Spänningen levererad av generatoraggregat av det slag det här är fråga om kan i många fall vara instabil och variera med avseende på frekvens och amplitud samt innehålla överlagringar. Genom anordnande av fil- treringsorganen uppnås att dessa defekter elimineras eller åtminstone reduceras så att en ren och störningsfri spänning överförs till nätet.According to a further preferred embodiment, the switchgear and / or the intermediate station comprise filtering means for filtering outgoing and / or incoming current and voltage. The voltage supplied by generator sets of the type in question can in many cases be unstable and vary with respect to frequency and amplitude and contain superimpositions. By arranging the filtering means, it is achieved that these defects are eliminated or at least reduced so that a clean and interference-free voltage is transmitted to the mains.
Enligt ytterligare en föredragen utföringsform är ställverken och/eller mellanstationen fyllda med en icke-korrosiv, buffrad vätska. Därmed förhindras att aggressivt saltvatten tränger in och komponenterna i ställverk och mellanstation skyddas. 20 25 30 C 7"! PÅ) -fïu C Û l P »D 4 Ovan angivna föredragna utföringsformer av det uppfunna systemet anges i de av kravet 1 beroende patentkraven.According to a further preferred embodiment, the switchgear and / or the intermediate station are filled with a non-corrosive, buffered liquid. This prevents aggressive salt water from penetrating and protects the components in the switchgear and intermediate station. The above-mentioned preferred embodiments of the invented system are set out in the claims dependent on claim 1.
Ur uppfinningens andra aspekt har det angivna ändamålet ernåtts genom att ett elektriskt ställverk av det i patentkravets 13 ingress angivna slaget innefattar de speciella särdragen att ställverket innefattar en vattentät behållare inrymmande ställverkskomponenter, vilken behållare är anordnad för förankring i havsbotten.From the second aspect of the invention, the stated object has been achieved in that an electrical switchgear of the type stated in the preamble of claim 13 comprises the special features that the switchgear comprises a waterproof container accommodating switchgear components, which container is arranged for anchoring in the seabed.
Genom det uppfunna ställverket tillhandahålles en central komponent för det uppfunna systemet. Med ställverket enligt uppfinningen möjliggörs därför att förverkliga de fördelar som är förknippade med ett sådant system och som redo- gjorts för ovan.The invented switchgear provides a central component for the invented system. The switchgear according to the invention therefore makes it possible to realize the advantages which are associated with such a system and which have been described above.
Föredragna utföringsformer av det uppfunna ställverket anges i de av kra- vet 15 beroende patentkraven. Dessa utföringsformer har sin motsvarighet i en del av de föredragna utföringsformerna av det uppfunna systemet. Dessa har redo- gjorts för ovan och vad som vinnes med dessa utföringsformer, varför här hänvi- sas till dessa.Preferred embodiments of the invented switchgear are set out in the claims dependent on claim 15. These embodiments have their equivalent in some of the preferred embodiments of the invented system. These have been described above and what is gained with these embodiments, which is why reference is made here to these.
Ur uppfinningens tredje aspekt har det angivna ändamålet ernåtts genom att ett förfarande av det i patentkravets 19 ingress angivna slaget innefattar de speciella åtgärderna att ställverkets komponenter anordnas inne i en vattentät behållare, vilken behållare förankras i havsbotten, och av att ett flertal ställverk ansluts till en gemensam mellanstation, vilken mellanstation är ansluten till mottagnlngsstationen.From the third aspect of the invention, the stated object has been achieved in that a method of the type stated in the preamble of claim 19 comprises the special measures that the components of the switchgear are arranged inside a watertight container, which container is anchored in the seabed, and a plurality of switchgear are connected to a common intermediate station, which intermediate station is connected to the receiving station.
Genom det uppfunna förfarandet vinnes fördelar av samma slag som angi- vits ovan för det uppfunna systemet.Through the invented method, advantages of the same kind as stated above for the invented system are obtained.
Föredragna utförandeformer av det uppfunna förfarandet anges i de av kravet 19 beroende patentkraven. Därvid vinnes fördelar av motsvarande slag som vinnes med de föredragna utföringsformerna av det uppfunna systemet och som redogjorts för ovan.Preferred embodiments of the invented method are set out in the claims dependent on claim 19. Thereby, advantages of a corresponding kind are obtained which are gained with the preferred embodiments of the invented system and which have been described above.
Uppfinningen förklaras närmare genom efterföljande detaljerade beskriv- ning av fördelaktiga utföringsexempel av desamma under hänvisning till medföl- jande ritningsfigurer.The invention is explained in more detail by the following detailed description of advantageous embodiments of the same with reference to the accompanying drawing figures.
Kort beskrivning av figurerna Fig 1 är en schematisk sidovy av ett första utföringsexempel enligt uppfinningen, 15 20 25 30 Fig 2 är en schematisk vy från ovan av ett andra utföringsexempel enligt uppfin- ningen, Fig 3-6 är scheman illustrerande olika exempel på omvandling av spänningen vid ett system enligt uppfinningen, Fig 7 är ett schema över några komponenter hos ett ställverk enligt uppfin- ningen, Fig 8 illustrerar ett alternativt likriktningsexempel.Brief Description of the Figures Fig. 1 is a schematic side view of a first embodiment according to the invention, Fig. 2 is a schematic top view of a second embodiment according to the invention, Figs. 3-6 are diagrams illustrating various examples of conversion of the voltage in a system according to the invention, Fig. 7 is a diagram of some components of a switchgear according to the invention, Fig. 8 illustrates an alternative rectification example.
Beskrivning av fördelaktiga utföringsexempel l fig 1 illustreras i en principskiss ett exempel på ett system enligt uppfin- ningen. Ett ställverk 1 är anordnat vilande på havsbotten B. Ställverket 1 består av en vattentät behållare bildad av en huskåpa 2 och en bottenplatta 3, vilken exempelvis kan vara av betong. Ställverket 1 är förankrat i havsbotten B. Till ställ- verket är generatorerna 4-9 hos ett antal generatoraggregat anslutna. Generator- aggregaten har i figuren symboliserats med olika slags symboler representerande vindkraftaggregat 4, 5, vågkraftaggregat 6, 7 en av ytströmmar driven vattenturbin 8 och en av undervattenströmmar driven vattenturbin 9. Till ett och samma ställ- verk kan generatoraggregat av olika slag vara anslutna såsom illustrerats i figu- rerna. Normalt torde dock endast ett slag av aggregat vara anslutbara, varför figu- rerna kan ses som illustrerande olika tänkbara exempel. Vindkraftaggregaten 4, 5 kan med fördel utgöras av aggregat i enlighet med de som beskrivs i SE 0200064- 4, men kan naturligtvis vara av godtyckligt slag. Vågkraftaggregaten 6, 7 kan med fördel utgöras av aggregat i enlighet med de som beskrivs i SE 0200065-1 och SE 0200066-9, men kan naturligtvis även de vara av godtyckligt slag.Description of advantageous embodiments Fig. 1 illustrates in a principle sketch an example of a system according to the invention. A switchgear 1 is arranged resting on the seabed B. The switchgear 1 consists of a waterproof container formed by a housing cover 2 and a bottom plate 3, which may, for example, be made of concrete. The switchgear 1 is anchored in the seabed B. Generators 4-9 of a number of generator sets are connected to the switchgear. In the figure, the generator sets have been symbolized by different kinds of symbols representing wind power units 4, 5, wave power units 6, 7, a water turbine 8 driven by surface currents and a water turbine 9 driven by underwater currents. illustrated in the figures. Normally, however, only one type of unit should be connectable, which is why the figures can be seen as illustrating various conceivable examples. The wind power units 4, 5 can advantageously consist of units in accordance with those described in SE 0200064- 4, but can of course be of any kind. The wave power units 6, 7 can advantageously consist of units in accordance with those described in SE 0200065-1 and SE 0200066-9, but can of course also be of any kind.
Vardera generatoraggregat 4-9 är elektriskt förbundet med ställverket 1 genom ledningar 10-15 som via genomföringar genom huskåpan 2 är anslutna till komponenterna inne i ställverket. Spänningen matas från respektive aggregat såsom làgspänd lik- eller växelspänning.Each generator set 4-9 is electrically connected to the switchgear 1 through wires 10-15 which are connected to the components inside the switchgear via bushings through the housing cover 2. The voltage is supplied from the respective unit as low-voltage direct or alternating voltage.
Komponenterna i ställverket 1 är av konventionellt slag och är ej utritade i figurerna. Dessa komponenter kan innefatta halvledare, omriktare, brytare, mät- organ, reläskydd, ventilavledare eller andra överspänningsskydd, jordare, last- kopplare eller frånsklljare samt transformator.The components in the switchgear 1 are of a conventional type and are not drawn in the figures. These components can include semiconductors, inverters, switches, measuring devices, relay protection, valve diverters or other overvoltage protection, earth, load switches or disconnectors and transformers.
Genom utgående ledningar 16 levererar ställverket en utgående lik- eller växelspänning, företrädesvis högspänning. Växelspänningen är lågfrekvent och 10 15 20 25 30 (Il l J CTO C '1 l* J 6 kan vara tre- eller flerfasig. Även standardfrekvenser såsom 50 eller 60 Hz kan användas.Through output lines 16, the switchgear delivers an output DC or AC voltage, preferably high voltage. The AC voltage is low frequency and can be three-phase or multiphase. Standard frequencies such as 50 or 60 Hz can also be used.
Genom den i ställverket anordnade transformatorn omvandlas inkom- mande lågspänning till utgående högspänning. Omriktare respektive växelriktare i ställverket används i förekommande fall då omvandling DC-AC eller vice versa är aktuellt.Through the transformer arranged in the switchgear, the incoming low voltage is converted to the output high voltage. Inverters and inverters in the switchgear are used when the DC-AC conversion or vice versa is relevant.
Spänningen levereras till en på land belägen mottagningsstation, eventu- ellt via en mellanstation, för att matas ut på ett elnät.The voltage is delivered to an onshore receiving station, possibly via an intermediate station, to be output on an electricity network.
Fig 2 illustrerar ett exempel på ett system enligt uppfinningen som kan vara ändamålsenligt då ett större antal generatoraggregat ingår i systemet. Figurer är en symbolrepresentation av systemet sett i fågelperspektiv och visar ett havs- område H ifigurens vänstra del och ett landområde L i dess högra del. Kom- ponenterna i vänstra delen av figuren är belägna delvis under delvis ovanför vattenytan.Fig. 2 illustrates an example of a system according to the invention which may be expedient when a larger number of generator sets are included in the system. Figures are a symbolic representation of the system seen from a bird's perspective and show a sea area H in the left part of the figure and a land area L in its right part. The components in the left part of the figure are located partly below and partly above the water surface.
Systemet innefattar en första grupp generatoraggregat 4a-6a, en andra grupp generatoraggregat 4b-6b och en tredje grupp generatoraggregat 4c-6c.The system comprises a first group of generator sets 4a-6a, a second group of generator sets 4b-6b and a third group of generator sets 4c-6c.
Vardera aggregat kan vara av godtyckligt slag bland de som illustreras i fig 1. Den första gruppens generatoraggregat 4a-6a är via undervattensledningar förbundna med ett första ställverk 1a beläget under vattenytan. På motsvarande sätt är de båda övriga grupperna generatoraggregat 4b-6b och 4c-6c anslutna till ett andra lb respektive tredje 1c ställverk. Vardera av ställverken 1a-1c är via undervat- tensledningar 16a-16c anslutna till en mellanstation 17, även den belägen under vattenytan. Från mellanstationen 17 leds spänningen som lågfrekvent trefas växelspänning via undervattensledningar 18 till en på land belägen mottagnings- station 19. I mottagningsstationen omvandlas spänningen till standardfrekvens såsom 50 eller 60 Hz.Each unit can be of any kind among those illustrated in Fig. 1. The first group generator units 4a-6a are connected via underwater lines to a first switchgear 1a located below the water surface. Correspondingly, the other two groups of generator sets 4b-6b and 4c-6c are connected to a second lb and a third 1c switchgear, respectively. Each of the switchgear 1a-1c is connected via underwater lines 16a-16c to an intermediate station 17, also located below the water surface. From the intermediate station 17, the voltage is conducted as a low-frequency three-phase alternating voltage via underwater lines 18 to an onshore receiving station 19. In the receiving station, the voltage is converted to a standard frequency such as 50 or 60 Hz.
Avståndet mellan generatoraggregaten och mottagningsstationen kan vara från någon kilometer till många 10-tals kilometer. Då systemet är uppbyggt enligt fig 2 får avstånden mellan å ena sidan ställverken och mellanstationen och å andra sidan mellan mellanstationen och mottagningsstationen optimeras.The distance between the generator sets and the receiving station can be from a few kilometers to many tens of kilometers. When the system is built according to Fig. 2, the distances between on the one hand the switchgear and the intermediate station and on the other hand between the intermediate station and the receiving station are optimized.
Transmissionen från generatoraggregaten till en mottagningsstation på land kan ske på olika sätt med olika omvandlingar av spänningen. I fig 3 till 6 illust- reras schematiskt några exempel på detta. I vardera exempel är generatoraggre- gaten anordnade längst till vänster och mottagningsstationen på land L längst till 10 15 20 25 30 35 c w r-a IX. c :z (fl ro 7 höger. Med 21 symboliseras en omriktare/växelriktare och med 22 en spännings- höjande transformator. I fig 3 och 4 levererar generatoraggregaten Iikspänning som ifig 3 överförs till land som växelspänning och i fig 4 som Iikspänning.The transmission from the generator sets to a receiving station on land can take place in different ways with different conversions of the voltage. Figures 3 to 6 schematically illustrate some examples of this. In each example, the generator sets are arranged at the far left and the receiving station on land L at the farthest to 10 15 20 25 30 35 c w r-a IX. c: z (fl ro 7 right. With 21 symbolizes a converter / inverter and with 22 a voltage-increasing transformer. In Figs. 3 and 4 the generator sets supply DC voltage which in Fig. 3 is transmitted to shore as alternating voltage and in Fig. 4 as DC voltage.
I fig 5 och 6 levererar generatoraggregaten växelspänning som omvandlas till Iikspänning. I fig 5 överförs det till land som växelspänning och i fig 6 som lik- spänning.In Figs. 5 and 6, the generator sets supply alternating voltage which is converted to DC voltage. In Fig. 5 it is transmitted to land as alternating voltage and in Fig. 6 as direct voltage.
I fig 7 illustreras närmare några vitala komponenter i ett ställverk enligt ett utföringsexempel med tre generatoraggregat 4, 5, 6 anslutna till ställverket 1. Var- dera aggregat är via en brytare eller kontaktor 23 och en likriktare 24 ansluten till en växelriktare 25 i en bipolär koppling enligt figuren. I figuren är kopplingsschema utritat endast för aggregatet 4. Övriga aggregat 5, 6 är anslutna på motsvarande sätt.Fig. 7 illustrates in more detail some vital components in a switchgear according to an exemplary embodiment with three generator units 4, 5, 6 connected to the switchgear 1. Each unit is connected via a switch or contactor 23 and a rectifier 24 to an inverter 25 in a bipolar coupling according to the figure. In the figure, the wiring diagram is drawn only for the unit 4. Other units 5, 6 are connected in a corresponding manner.
Växelriktaren levererar trefasström via en transformator 26 till en trefasled- ning som leder till en mottagningsstation på land, eventuellt via en mellanstation.The inverter delivers three-phase current via a transformer 26 to a three-phase line that leads to a receiving station on land, possibly via an intermediate station.
Likriktarna kan vara dioder som kan vara styrda och av typen IGBT, GTO eller tyristor, innefattar bipolära komponenter eller ostyrda. Spänningarna på DC- sidan kan vara parallellkopplade, seriekopplade eller en kombination av båda delarna. Andra kända halvledarkombinationer kan alternativt användas.The rectifiers may be diodes which may be controlled and of the IGBT, GTO or thyristor type, include bipolar components or uncontrolled. The voltages on the DC side can be connected in parallel, connected in series or a combination of both parts. Other known semiconductor combinations may alternatively be used.
Många andra kopplingsalternativ visas inom uppfinningens ram. Exempel- vis kan man använda en helvågslikriktare av den typ som illustreras i fig 8.Many other coupling options are shown within the scope of the invention. For example, a full-wave rectifier of the type illustrated in Fig. 8 may be used.
I vardera ställverk 1 och/eller i mellanstationen 17 kan även vara inrymda energilager och filter. Energilagren kan exempelvis utgöras av batterier, konden- satorer, SMES-typer, svänghjul eller kombinationer av dessa. Filtren kan innefatta aktiva komponenter på motsvarande sätt som vid omriktare. Även passiva LC-filter liksom elektromekaniska komponenter såsom svänghjul omformare eller synkron- kompensator.Energy storage and filters can also be accommodated in each switchgear 1 and / or in the intermediate station 17. The energy stores can, for example, consist of batteries, capacitors, SMES types, flywheels or combinations of these. The filters may include active components in the same way as in inverters. Also passive LC filters as well as electromechanical components such as flywheel inverters or synchronous compensators.
Ehuru systemet enligt uppfinningen är tillämpbart på olika slag av vågkraft- aggregat, vindkraftaggregat och havsströmdrivna turbinaggregat är det speciellt fördelaktigt att utnyttja aggregat av de slag som beskrivs i de inledningsvis nämnda SE 0200064-4, SE 0200065-1 och SE 0200066-9.Although the system according to the invention is applicable to different types of wave power units, wind power units and offshore turbines, it is particularly advantageous to use units of the types described in the initially mentioned SE 0200064-4, SE 0200065-1 and SE 0200066-9.
Claims (24)
Priority Applications (26)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0200613A SE524852C2 (en) | 2002-01-08 | 2002-02-28 | Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turns |
| EP02793705A EP1466090B1 (en) | 2002-01-08 | 2002-12-19 | Wave-power unit and plant for the production of electric power and a method of generating electric power |
| CA2472942A CA2472942C (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| AU2002359188A AU2002359188B2 (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| EP02793706A EP1474607B1 (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| DK02793705T DK1466090T3 (en) | 2002-01-08 | 2002-12-19 | Wave energy unit and plants for generating electric energy and a method for generating electric energy |
| AU2002359187A AU2002359187A1 (en) | 2002-01-08 | 2002-12-19 | Wave-power unit and plant for the production of electric power and a method of generating electric power |
| ES02793705T ES2282505T3 (en) | 2002-01-08 | 2002-12-19 | UNIT AND SMALL PLANT FOR THE PRODUCTION OF ELECTRICAL ENERGY AND A METHOD FOR GENERATING ELECTRICAL ENERGY. |
| PT02793706T PT1474607E (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| JP2003558334A JP4732690B2 (en) | 2002-01-10 | 2002-12-19 | Wave power device, use of wave power device for power generation, power generation method, and set of components for manufacturing linear generator for wave power device |
| DK02793706T DK1474607T3 (en) | 2002-01-10 | 2002-12-19 | Wave energy unit and the use of a wave energy unit for producing electric power, a method for generating electric power and a system of components for producing a linear generator for a wave unit |
| DE60221712T DE60221712T2 (en) | 2002-01-10 | 2002-12-19 | WAVE ENERGY UNIT AND THE USE OF A WAVE POWER UNIT FOR GENERATING ELECTRICAL ENERGY, METHOD FOR GENERATING ELECTRICAL ENERGY AND COMPONENT SYSTEM FOR PRODUCING A LINEAR GENERATOR FOR A WAVE POWER UNIT |
| PCT/SE2002/002404 WO2003058054A1 (en) | 2002-01-08 | 2002-12-19 | Wave-power unit and plant for the production of electric power and a method of generating electric power |
| PCT/SE2002/002405 WO2003058055A1 (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| PT02793705T PT1466090E (en) | 2002-01-08 | 2002-12-19 | Wave-power unit and plant for the production of electric power and a method of generating electric power |
| NZ534543A NZ534543A (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and the use of a wave-power unit for production of electric power, a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| AT02793706T ATE369492T1 (en) | 2002-01-10 | 2002-12-19 | WAVE ENERGY UNIT AND THE USE OF A WAVE ENERGY UNIT FOR GENERATING ELECTRICAL ENERGY, METHOD FOR GENERATING ELECTRICAL ENERGY AND COMPONENT SYSTEM FOR PRODUCING A LINEAR GENERATOR FOR A WAVE ENERGY UNIT |
| DE60218900T DE60218900T2 (en) | 2002-01-08 | 2002-12-19 | WAVE POWER UNIT AND APPARATUS FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR GENERATING ELECTRICAL ENERGY |
| AT02793705T ATE356931T1 (en) | 2002-01-08 | 2002-12-19 | WAVE ENERGY UNIT AND SYSTEM FOR GENERATING ELECTRICAL ENERGY AND METHOD FOR GENERATING ELECTRICAL ENERGY |
| US10/501,068 US7045912B2 (en) | 2002-01-08 | 2002-12-19 | Wave-power electric device and method |
| CN028270541A CN1615400B (en) | 2002-01-10 | 2002-12-19 | A wave-power unit and generator comprising the wave-power unit, generation method and module system of linear generator for producing wave-power units |
| ES02793706T ES2291525T3 (en) | 2002-01-10 | 2002-12-19 | A SMALL UNIT AND THE USE OF A SMALL UNIT FOR THE PRODUCTION OF ELECTRICAL ENERGY, A METHOD FOR GENERATING ELECTRICAL ENERGY AND A COMPONENT SYSTEM FOR MANUFACTURING A LINEAR GENERATOR FOR A SMALL UNIT. |
| TW092100176A TWI276741B (en) | 2002-01-10 | 2003-01-06 | Electric device and method |
| TW092100175A TW200302317A (en) | 2002-01-10 | 2003-01-06 | Electric device and method |
| ZA2004/06297A ZA200406297B (en) | 2002-01-10 | 2004-08-06 | A wave-power unit and the use of a wave-power unit for production of electric power a method of generating electric power and a system of components for manufacturing a linear generator for a wave-power unit |
| CY20071101266T CY1106906T1 (en) | 2002-01-10 | 2007-10-04 | KYMATIKIS UNIT OPERATION AND USE OF A UNIT OPERATION KYMATIKIS FOR GENERATION OF ELECTRICAL METHOD OF PRODUCTION OF ELECTRICITY AND SYSTEM PARTS FOR CONSTRUCTION OF LINEAR GENERATOR FOR OPERATING UNIT OPERATION KYMATIKIS |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0200066A SE524400C2 (en) | 2002-01-08 | 2002-01-08 | Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turns |
| SE0200065A SE520921C2 (en) | 2002-01-10 | 2002-01-10 | Wave power unit for generation of electricity has a float that moves with the waves and is mechanically coupled to a linear generator |
| SE0200613A SE524852C2 (en) | 2002-01-08 | 2002-02-28 | Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turns |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| SE0200613D0 SE0200613D0 (en) | 2002-02-28 |
| SE0200613L SE0200613L (en) | 2003-07-11 |
| SE524852C2 true SE524852C2 (en) | 2004-10-12 |
Family
ID=27354791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE0200613A SE524852C2 (en) | 2002-01-08 | 2002-02-28 | Wave power electricity generator has stator with winding connected to rectifier and movement transmitter converting vertical movement of floating body into rotor turns |
Country Status (1)
| Country | Link |
|---|---|
| SE (1) | SE524852C2 (en) |
-
2002
- 2002-02-28 SE SE0200613A patent/SE524852C2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| SE0200613D0 (en) | 2002-02-28 |
| SE0200613L (en) | 2003-07-11 |
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