# US 2021/0277866 A1 · A multirotor wind turbine with guy wires

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- Number: US 2021/0277866 A1
- Document ID: US20210277866A1
- Status: Published application
- Kind: A1
- Application number: 16/610,724
- Filed: 2018-06-12
- Published: 2021-09-09
- Earliest claimed: 2017-06-19
- Assignees: Vestas Wind Systems A/S
- Applicants: Vestas Wind Systems A/S
- Inventors: Torben Ladegaard Baun; Peter Bøttcher; Jesper Lykkegaard Neubauer; Leif Christoffersen
- Web page: https://patentgrep.com/patent/US20210277866A1

## CPC

- F03D 7/0204: {for orientation in relation to wind direction}
- E04H 12/20: Side-supporting means therefor, e.g. using guy ropes or struts
- F03D 1/02: having a plurality of rotors
- F03D 13/20: Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
- F05B 2240/37: Multiple rotors
- F05B 2240/912: on a tower
- Y02E 10/72: Wind turbines with rotation axis in wind direction
- Y02E 10/728: Onshore wind turbines
- F03D: WIND MOTORS
- E04H: BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL (foundations E02D)
- F05B: INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A multirotor wind turbine (1) comprising a tower structure (2) and at least one load carrying structure (3), each load carrying structure (3) being arranged to carry two or more energy generating units (5), is disclosed. The wind turbine (1) further comprises a yawing arrangement (6) comprising a first part (9) being fixedly connected to the tower structure (2) and a second part (10) being fixedly connected to at least one of the load carrying structure(s) (3). The first part (9) and the second part (10) are configured to perform rotating movements relative to each other, thereby allowing the load carrying structure (3) to perform yawing movements relative to the tower structure (2). At least one guy wire (7) is connected between an anchoring point (8) at the ground and the first part (9) of the yawing arrangement (6). The invention further provides a yawing arrangement (6) for such a multirotor wind turbine (1).

## Claims

### Claim 1

A multirotor wind turbine comprising:
a tower structure,
at least one load carrying structure, each load carrying structure being arranged to carry two or more energy generating units,
a yawing arrangement comprising a first part being fixedly connected to the tower structure and a second part being fixedly connected to at least one of the load carrying structure(s), the first part and the second part being configured to perform rotating movements relative to each other, thereby allowing the load carrying structure to perform yawing movements relative to the tower structure, and
at least one guy wire being connected between an anchoring point at the ground and the first part of the yawing arrangement.

### Claim 2 (depends on 1)

The multirotor wind turbine according to claim 1, wherein the guy wire(s) is/are connected to an exterior portion of the first part of the yawing arrangement.

### Claim 3 (depends on 1)

The multirotor wind turbine according to claim 1, wherein the guy wire(s) extend(s) through the first part of the yawing arrangement, and wherein the guy wire(s) is/are connected to an interior portion of the first part of the yawing arrangement.

### Claim 4 (depends on 3)

The multirotor wind turbine according to claim 3, further comprising a hoisting mechanism arranged inside an outer periphery defined by the tower structure and/or the yawing arrangement, the hoisting mechanism being configured to hoist the guy wire(s) to a mounting position.

### Claim 5 (depends on 1)

The multirotor wind turbine according to claim 1, wherein the first part of the yawing arrangement is or comprises a yaw ring, and the second part of the yawing arrangement is or comprises one or more yaw drive units.

### Claim 6 (depends on 1)

The multirotor wind turbine according to claim 1, wherein the first part of the yawing arrangement is or comprises one or more yaw drive units, and the second part of the yawing arrangement is or comprises a yaw ring.

### Claim 7 (depends on 1)

The multirotor wind turbine according to claim 1, wherein the first part of the yawing arrangement is a casted part.

### Claim 8 (depends on 1)

The multirotor wind turbine according to claim 1, wherein at least one of the load carrying structure(s) comprises two arms extending away from the tower structure, each arm being arranged to carry one or more energy generating units.

### Claim 9 (depends on 1)

A yawing arrangement for use in a multirotor wind turbine according to claim 1, the yawing arrangement comprising a first part being configured to be fixedly connected to a tower structure and a second part being configured to be fixedly connected to a load carrying structure, the first part and the second part being configured to perform rotating movements relative to each other, wherein the first part is provided with one or more connecting structures for connecting one or more guy wires to the first part of the yawing arrangement.

### Claim 10 (depends on 9)

The yawing arrangement according to claim 9, wherein the connecting structure(s) is/are arranged on an exterior portion of the first part of the yawing arrangement.

### Claim 11 (depends on 9)

The yawing arrangement according to claim 9, wherein the connecting structure(s) is/are arranged on an interior portion of the first part of the yawing arrangement, and wherein the first part of the yawing arrangement is further provided with one or more through-going passages allowing a guy wire to pass through the first part of the yawing arrangement.