Disclosed herein is an array (6', 6'') comprising at least ten wave power converters (12, 12'') and at least one marine substation (14), each wave energy converter (12, 12'') comprising a floating body (18, 18'), a wire (22), a housing (24) anchored in the sea- or lakebed (32), said housing (24) comprising a stator (26) and a seesawing translator (28). The seesawing translator (28) is connected via the wire (22) to the floating body (18, 18'), each of the at least ten wave power converters (12, 12'') is electrically connected to the marine substation (14). The at least ten wave energy converters (12, 12'') are arranged on a symmetric, open, concave line (34a, 34a', 34b, 34b'), wherein a symmetry axis (A) is at least more or less parallel to a primary wave direction (3) and wherein the marine substation (14) is arranged on the symmetry axis (A).
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
2.
METHOD FOR DETERMINING THE ARRANGEMENT OF WAVE ENERGY CONVERTERS
Disclosed herein is a method for determining the arrangement of wave energy converters (1, 1a, 1b, 1c, 1d, 1e) in a wave power park in a sea- or lake area comprising the steps of: - Measuring wavelength and wave direction over a period of time; - Collecting all values measured for the wavelength and the wave direction in a matrix; - Statistically determining, from the matrix, a predominant wavelength (PWL) and a predominant wave direction (12); - Arranging an amount X of wave energy converters (1, 1a, 1b, 1c, 1d, 1e) at regular intervals over a distance that corresponds to half of the length of the predominant wavelength (PWL) or a multiple thereof, wherein the distance is measured in a direction at least more or less parallel to the predominant wave direction (12).
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
F03B 13/12 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy
The invention relates to a stator frame (12) for a submerged linear generator. According to the invention the stator frame (12) includes a cylindrical tube of metal with mounting means (13, 14, 15, 16) for mounting stator packages to the inside wall of the tube. The stator frame (12) also is the external circumferential wall of the linear generator. The invention also relates to the use of such a stator frame (12) and to a method for manufacturing a linear generator with such a stator frame (12).
F03B 13/10 - Submerged units incorporating electric generators or motors
F03B 13/12 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
H02K 15/00 - Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines
F03B 13/14 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
H02K 35/02 - Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
4.
Linear generator for submerged use and a method of producing electric energy
A linear generator for submerged use in generating electricity has a linearly reciprocating translator which is attached to a wire and a rod arranged to connect the translator to a floating body on the sea surface. The generator has a sealed housing forming a watertight chamber in which the translator is located. The rod is arranged to pass through a sealed opening in a wall portion of the housing. When operated, the wall portion with the sealed opening is located at a level that is below the level of the upper end of the translator at least during a part of the movement of the translator.
F03B 13/10 - Submerged units incorporating electric generators or motors
F03B 13/12 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy
H02P 9/04 - Control effected upon non-electric prime mover and dependent upon electric output value of the generator
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
H02K 35/02 - Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit with moving magnets and stationary coil systems
H02K 41/03 - Synchronous motorsMotors moving step by stepReluctance motors
5.
AN ELECTRIC DEVICE AND A METHOD FOR A WAVE POWER PLANT
The invention relates to an electric device with a winding (12) and means for inducing a current in the winding. A bridge circuit (400) electrically connects the winding (12) to a load (13). According to the invention the bridge circuit (400) includes capacitor means (401, 402), which is adapted for obtaining resonance with the impedance of the winding (12)
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
The invention relates to a stator frame (12) for a submerged linear generator. According to the invention the stator frame (12) includes a cylindrical tube of metal with mounting means (13, 14, 15, 16) for mounting stator packages to the inside wall of the tube. The stator frame (12) also is the external circumferential wall of the linear generator. The invention also relates to the use of such a stator frame (12) and to a method for manufacturing a linear generator with such a stator frame (12).
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
7.
A LINEAR GENERATOR FOR SUBMERGED USE AND A METHOD OF PRODUCING ELECTRIC ENERGY
The invention relates to a linear generator for submerged use. It has a linearly reciprocating translator (6) which is attached to connection means (3, 7) arranged to connect the translator (6) to a floating body (1) on the sea surface. The generator has a sealed housing (4) forming a water-tight chamber, in which the translator (6) is located. The connection means is arrange to pass through a sealed (12) opening in a wall portion (18) of the housing (4). According to the invention, at operation, the wall portion (18) with the sealed (12) opening is located at a level that is below the level of the upper end of the translator (6) at least during a part of the movement of the translator (6). The invention also relates to a use of the generator and to a method of generating electric energy.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
The invention relates to a wave power unit having a submerged station anchored on the sea bottom, a floating body floating on the sea surface and flexible connection means (3) connecting these. The submerged station has a linear generator with a reciprocating translator. According to the invention, the station includes a guiding device (9) for the flexible connection means (3). The guiding device (9) has a plurality of rotatable rollers (15a – 18c). The rollers (15a – 18c) form a passage for the flexible connection means (3). The invention also relates to use of the wave power unit and to a method for producing electric power.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
B66D 1/38 - Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel
F16H 7/18 - Means for guiding or supporting belts, ropes, or chains
9.
A WAVE POWER UNIT, A USE OF A SUCH AND A METHOD OF PRODUCING ELECTRIC ENERGY
The invention relates to a wave power unit with a floating body (1), a submerged station (2) and flexible connection means (3) connecting the floating body (1) to the submerged station (100). The submerged station (100) has a stator 5 (5) and a moving part (6). According to the invention the flexible connection means (3) is provided with a damper (12). The damper (12) is arranged to absorb tensile forces in the flexible connection means (3). The invention also relates to a use of such a wave power unit and to a 10 method for producing and supplying electric energy.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
F16F 1/38 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction with a sleeve of elastic material between a rigid outer sleeve and a rigid inner sleeve or pin
B63B 21/04 - Fastening or guiding equipment for chains, ropes, hawsers, or the like
10.
A LINEAR GENERATOR FOR SUBMERGED USE AND A METHOD OF PRODUCING ELECTRIC ENERGY
The invention relates to a linear generator for submerged use. It has a linearly reciprocating translator (6) which is attached to connection means (3, 7) arranged to connect the translator (6) to a floating body (1) on the sea surface. The generator has a sealed housing (4) forming a water-tight chamber, in which the translator (6) is located. The connection means is arrange to pass through a sealed (12) opening in a wall portion (18) of the housing (4). According to the invention, at operation, the wall portion (18) with the sealed (12) opening is located at a level that is below the level of the upper end of the translator (6) at least during a part of the movement of the translator (6). The invention also relates to a use of the generator and to a method of generating electric energy.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
The invention relates to a stator frame (12) for a submerged linear generator. According to the invention the stator frame (12) includes a cylindrical tube of metal with mounting means (13, 14, 15, 16) for mounting stator packages to the inside wall of the tube. The stator frame (12) also is the external circumferential wall of the linear generator. The invention also relates to the use of such a stator frame (12) and to a method for manufacturing a linear generator with such a stator frame (12).
H02K 5/12 - Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
H02K 1/18 - Means for mounting or fastening magnetic stationary parts on to, or to, the stator structures
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
The invention relates to a switchgear having electric components (2, 3) enclosed by a housing (1). According to the invention the switchgear has a frame structure (6). At least one electric component (2) is mounted on a cooling element (7). Clamping means (8) is mounted on the frame structure (6) and presses the cooling element against an inner surface of the housing wall (41). The invention also relates to a method for manufacturing such a switch- gear.
The invention relates to a wave power unit having a generator (2) powered by wave energy, The generator (2) has primary electric connection (12) means for supplying energy to an electric network (21). According to the invention the generator (2) has secondary electric connection means (13) connecting the generator to a load (14).
F03B 13/14 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy
The invention relates to a wave-power unit for the production of electric power. It comprises a floating body (1) arranged for floating on the sea and an electric linear generator (2) having a stator (5) and a translator (8) reciprocating along a center axis. The stator (5) is arranged to be anchored in the bed of the sea and the translator (8) is connected to the floating body (1) by connection means (3, 7). According to the invention the generator (2) is eπctosed in a water-tight encapsulation (4) having an upper end wall with an opening through which the connection means (7) extends. The opening has a seal (12) that seals against the connection means (7). The seal (12) is flexibly mounted. The invention also relates to the use of the wave-power unit and to a method for producing electric power.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
F16J 15/56 - Other sealings for reciprocating rods
The invention relates to a wave-power unit for the production of electric power. It comprises a floating body arranged for floating on the sea and an electric linear generator with a stator (5) and a reciprocating translator (6). The stator (5) is arranged to be anchored in the bed of a sea and the translator (6) is connected to the floating body by connection means, The translator (6) is journalled in a plurality of roiling elements (15) such that a circumferential gap (14) is formed between the stator and the translator. According to the invention each rolling element (15) has an elasticity that is low enough to meet the condition that a change in the width (d) of the gap results in a change in the total force from the roiling elements (15) that is larger than the total magnet forces on the translator resulting from the change in width (d). The invention also relates to a use of the invented wave-power unit.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
H02K 35/00 - Generators with reciprocating, oscillating or vibrating coil system, magnet, armature or other part of the magnetic circuit
The invention relates to a wave-power unit with a floating body (1) connected by flexible connection means (3) to a translator (6)re-ciprocating in a linear generator (2), The floating body (1) is arranged for floating on the sea and the stator (8) of the generator for anchoring on the sea bed, According to the invention the connection means is guided by a guiding device (9) through lower and upper openings, The part of the con-nection means (3) that momentary is within the guiding device (9) is there-by guided to be aligned with the translator movements adjacent the lower opening and to be allowed to be inclined adjacent the upper opening. The invention aiso relates to a use of the invented wave-power piant and to a method for producing electric energy.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
The invention relates to a wave-power unit with a floating body (1) connected by flexible connection means (3) to a translator (6) reciprocating in a linear generator (2), The floating body (1) is arranged for floating on the sea and the stator (8) of the generator for anchoring on the sea bed, According to the invention the connection means is guided by a guiding device (9) through lower and upper openings, The part of the connection means (3) that momentary is within the guiding device (9) is thereby guided to be aligned with the translator movements adjacent the lower opening and to be allowed to be inclined adjacent the upper opening. The invention aiso relates to a use of the invented wave-power piant and to a method for producing electric energy.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
18.
A WAVE POWER UNIT, A BUOY, USE OF A WAVE POWER UNIT AND A METHOD FOR PRODUCING ELECTRIC ENERGY
The invention relates to a wave power unit with a buoy (3), adapted to float on a water surface (2). An electric generator (5) is connected to the buoy through connection means (4, 12, 13). According to the invention the buoy (3) when floating on a water surface (2) and when seen in a direction perpendicular to the water surface has the shape of a closed loop enclosing a inner opening (14). The invention also relates to a buoy (3) for a wave power unit, which buoy has the corresponding features as above. Further, the invention relates to the use of the invented wave power unit and to a method for producing electric energy with the invented wave power unit.
F03B 13/16 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
The invention relates to a system for generating electric energy from renewable energy sources. The system includes a plurality of generator aggregates (4a-6c) arranged in the sea and a plurality of switchgears (1 a-1 c) arranged in the sea. Each switchgear (1 a-1 c) is connected to a plurality of the generator aggregates (4a-6c). According to the invention the system includes a plurality of primary intermediate stations (17a-17c). The system also includes at least one secondary intermediate station (19). Each primary intermediate station (17a-17c) is connected to a plurality of the switchgears and each secondary intermediate station (19) is connected to a plurality of the primary intermediate stations (17a-17c). The secondary intermediate station is also connected to a land based electric network. Switching means (192) is present for allowing selective connection to various locations (193,194,195) in the electric network. The invention also relates to an electric network and to a method for supplying energy to an electric network.
F03B 13/18 - Adaptations of machines or engines for special useCombinations of machines or engines with driving or driven apparatusPower stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member and another member wherein the other member is fixed, at least at one point, with respect to the sea bed or shore
patents
