CN116946314A - Floating fan with initiative ballast device - Google Patents
Floating fan with initiative ballast device Download PDFInfo
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- CN116946314A CN116946314A CN202210396001.7A CN202210396001A CN116946314A CN 116946314 A CN116946314 A CN 116946314A CN 202210396001 A CN202210396001 A CN 202210396001A CN 116946314 A CN116946314 A CN 116946314A
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- 238000007667 floating Methods 0.000 title claims abstract description 132
- 239000007788 liquid Substances 0.000 claims abstract description 87
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 10
- 230000001276 controlling effect Effects 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 230000005484 gravity Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B39/00—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude
- B63B39/02—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses
- B63B39/03—Equipment to decrease pitch, roll, or like unwanted vessel movements; Apparatus for indicating vessel attitude to decrease vessel movements by displacement of masses by transferring liquids
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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
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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
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/446—Floating structures carrying electric power plants for converting wind energy into electric energy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2207/00—Buoyancy or ballast means
- B63B2207/02—Variable ballast or buoyancy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B2207/00—Buoyancy or ballast means
- B63B2207/04—Pressure equalising or adjusting
-
- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sustainable Development (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Energy (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Wind Motors (AREA)
Abstract
The application discloses a floating fan with an active ballast device, which comprises: the support upright post is used for installing the wind turbine generator; the floating upright posts are provided with first ballast cavities capable of containing liquid, the floating upright posts are distributed along the circumferential direction of the supporting upright posts, and the first ballast cavities of the adjacent floating upright posts are respectively communicated through first connecting channels; the first driving parts are respectively arranged on the first connecting channels and used for providing power in two directions; and the control system controls the flow direction and the flow rate of the liquid in the two first ballast cavities communicated with the first driving piece by controlling the first driving piece. The first driving piece is used for adjusting the volume of liquid in the first ballast cavity of the floating upright column, so that the weight and distribution of the ballast are changed, the active ballast of the floating fan is realized, and the stability of the floating fan is ensured.
Description
Technical Field
The application relates to the technical field of offshore fans, in particular to a floating fan with an active ballast device.
Background
The floating fan is a development trend of offshore wind power. The semi-submersible type wind turbine generator is suitable for a domestic floating type fan foundation, is a main current foundation type, and is mainly applied to three gorges leading numbers and sea supporting numbers.
However, since the floating type wind turbine floats on the sea surface, the motion response of the floating type wind turbine is large and the shaking of the foundation is large due to the action of wind power and sea waves, so that the stability of the floating type wind turbine needs to be improved by adopting a ballast technology.
At present, the ballast mode of the floating fan mainly comprises a passive pressure cabin, namely, according to the inclined angle and direction, an operator changes the position and adjusts the weight of the ballast of the floating fan. However, this passive pressure cabin approach is inflexible and can also result in significant labor.
Therefore, how to ensure the stability of the floating fan is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present application provides a floating blower with an active ballast means to ensure the stability of the floating blower.
In order to achieve the above purpose, the present application provides the following technical solutions:
a floating wind turbine with active ballast means, comprising:
the support upright post is used for installing the wind turbine generator;
the floating upright posts are provided with first ballast cavities capable of containing liquid, the floating upright posts are distributed along the circumferential direction of the supporting upright posts, and the first ballast cavities of the adjacent floating upright posts are respectively communicated through first connecting channels;
the first driving parts are respectively arranged on the first connecting channels and used for providing power in two directions;
and the control system controls the flow direction and the flow rate of the liquid in the two first ballast cavities communicated with the first driving piece by controlling the first driving piece.
Preferably, in the floating fan with active ballast device, the support column is provided with a second ballast cavity for containing liquid, the first ballast cavity is respectively communicated with the second ballast cavity through a second connecting channel, the second connecting channels are respectively provided with a second driving piece for providing power in two directions,
the control system controls the flow direction and the flow rate of the liquid in the first and second ballast cavities communicated with the second driving member by controlling the second driving member.
Preferably, in the above floating fan with active ballast device, the number of floating columns is three, and the floating columns are uniformly distributed along the circumferential direction of the supporting columns.
Preferably, in the above floating fan with an active ballast device, the first driving member and the second driving member are both bidirectional water pumps.
Preferably, the floating fan with the active ballast device further comprises an angle monitor for acquiring the yaw angle of the wind turbine, and angle information acquired by the angle monitor is transmitted to the control system.
Preferably, in the above floating fan with active ballast means, the first connection channels are located on the same plane, and the second connection channels are located on the same plane.
Preferably, in the above floating fan with active ballast device, the floating fan further comprises:
the calculating module is used for calculating the liquid volume required to be adjusted by each first ballast cavity in the balanced state when the yaw angle is alpha; the calculating module is in signal connection with the control system, and the control system receives the liquid volume which is calculated by the calculating module and is required to be adjusted by each first ballast cavity, so that the flow direction and the flow rate of the liquid in the two corresponding first ballast cavities which are in driving communication with each other by the first driving piece are controlled;
and/or the number of the groups of groups,
the calculating module is used for calculating the liquid volume required to be regulated by each first ballast cavity and the liquid volume required to be regulated by the second ballast cavity when the yaw angle is alpha and controlling the flow direction and the flow rate of the liquid in the first ballast cavity and the second ballast cavity which are communicated with each other by the corresponding second driving piece through the control system;
and when the first driving piece and the second driving piece supply liquid to one first ballast cavity at the same time, the liquid supply amounts of the first driving piece and the second driving piece are distributed according to the length proportion of the first connecting channel and the second connecting channel corresponding to the first driving piece and the second driving piece.
Preferably, in the above floating fan with active ballast means, the control system acquires the liquid volume to be adjusted for each of the first ballast cavities, and then controls the first driving member, which is connected to one of the first ballast cavities and needs to reduce the liquid volume and one needs to increase the liquid volume, to operate.
Preferably, in the above floating fan with active ballast means, the calculating module calculates the liquid volume to be adjusted for each of the first ballast cavities, including:
vertical force balance: the whole floating fan satisfies: Σf Floating device ＝∑G Heavy weight +∑G Mooring of +∑G The pressure of the ballast is controlled, wherein Σf Floating device For the floating fan to receive buoyancy, sigma G Heavy weight Is the sum of the gravity and Sigma G of the floating upright post, the supporting upright post and the wind turbine generator Mooring of Sigma G for the weight of all mooring lines Ballast for ballast The sum of the weights of all the first and second ballast chambers;
the weight G required for each of said first ballasts Ballast for ballast The torque balance is calculated and obtained;
the adjusted liquid volume V required for each of said first ballasts Adjustment of ＝V-V Before ballasting Wherein V is the calculated yaw angle α, the actual required fluid for each first ballast chamber in equilibriumVolume of body, V Before ballasting To re-balance the liquid volume in each first ballast cavity.
Preferably, the floating fan with the active ballast device further comprises a detection device for acquiring the displacement of the floating upright post.
The application provides a floating fan with an active ballast device, wherein the volume of liquid in a first ballast cavity of a floating upright column is regulated through a first driving piece, so that the weight and the distribution of ballast are changed, the active ballast of the floating fan is realized, and the stability of the floating fan is ensured.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a floating blower with active ballast means as disclosed in an embodiment of the present application;
FIG. 2 is a schematic illustration of an arrangement of a floating wind turbine with active ballasting means as disclosed in an embodiment of the present application;
FIG. 3 is a schematic yaw of a floating wind turbine with active ballast means disclosed in an embodiment of the present application;
FIG. 4 is a force analysis diagram of a floating blower with active ballasting means as disclosed in an embodiment of the present application;
the wind turbine generator system comprises a wind turbine generator system 1, a floating upright column 2, a supporting upright column 3, a first driving piece 4, a second driving piece 5, a first connecting channel 6, a second connecting channel 7 and a mooring rope 8.
Detailed Description
The application discloses a floating fan with an active ballast device, which is used for ensuring the stability of the floating fan.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terms "first" and "second" are used below for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature.
As shown in fig. 1 and 2, a floating wind turbine with active ballast means is disclosed, comprising support columns 3, floating columns 2, a first drive 4 and a control system. The specific size and structure of the support upright 3 serving as a mounting base for mounting the wind turbine generator 1 are not limited herein, so long as the wind turbine generator 1 can be mounted. The floating upright post 2 is used as a floating structure of the whole floating fan, is provided with a first ballast cavity capable of containing liquid, and can stably adjust different yaw angles by adjusting the liquid volume in the first ballast cavity. Specifically, the floating columns 2 are distributed along the circumferential direction of the support columns 3, and the first ballast cavities of adjacent floating columns 2 are respectively communicated through the first connecting channels 6, i.e. two adjacent floating columns 2 are respectively communicated through the first connecting channels 6, and the liquid volumes in the two first ballast cavities are changed by bidirectional flow and adjustment of the liquid in the two first ballast cavities.
The first driving member 4 is configured to power the flow of the liquid in the adjacent two first ballast chambers, and in order to realize the bidirectional exchange of the liquid in the adjacent two first ballast chambers, the first driving member 4 is required to be configured to power the liquid in both directions. Specifically, each first connecting channel 6 is provided with a first driving member 4, so as to realize the independent control of every two adjacent first ballast cavities.
The control system controls the flow direction and the flow rate of the liquid in the two first ballast cavities communicated with the first driving piece 4 by controlling the first driving piece 4. Specifically, the control system controls the volume and the direction of the liquid to be regulated according to each first ballast cavity so as to realize the regulation of the stability of the floating fan at different yaw angles by changing the weight of the liquid in the ballast cavity.
According to the application, the first driving piece 4 is used for adjusting the volume of liquid in the first ballast cavity of the floating upright post 2, so that the weight and distribution of the ballast are changed, the active ballast of the floating fan is realized, and the stability of the floating fan is ensured.
In a specific embodiment, the support column 3 has a second ballast cavity for accommodating a liquid, and the first ballast cavity is respectively communicated with the second ballast cavity through a second connecting channel 7, and in addition, the second connecting channels 7 are respectively provided with a second driving member 5 for bidirectionally providing power. Specifically, the control system controls the flow direction and the flow rate of the liquid in the first and second ballast chambers communicating with the second driving member 5 by controlling the second driving member 5.
The second ballast cavity of the support upright post 3 is communicated with the first ballast cavity of the floating upright post 2, and the liquid volumes in the first ballast cavity and the second ballast cavity are regulated through the communication of the first ballast cavity and the second ballast cavity, so that the weight and the distribution of the ballast are changed, the active ballast of the floating fan is realized, and the stability of the floating fan is ensured.
As can be seen from the above description, two sets of adjusting devices are provided in the present application, namely one set is to change the weight and distribution of the ballast by adjusting the volume of liquid in the adjacent first ballast cavity; the other set is to change the weight and distribution of the ballast by adjusting the liquid volumes of the first and second ballast chambers.
In the use process, only one set of adjusting device can be used, namely the first connecting channel 6 or the second connecting channel 7 is selected for use, and the other set is used as a redundant design, so that the normal use of the floating fan is ensured. In addition, in practice, two sets of adjusting devices can be used for adjusting at the same time, so that higher-efficiency ballast control can be realized.
In a specific embodiment, the number of floating columns 2 may be three, and the three floating columns 2 may be uniformly distributed along the circumferential direction of the support column 3. The number and arrangement of the floating columns 2 can be set according to different requirements and are all within the protection scope. In this embodiment, the floating columns 2 are three, and the supporting columns 3 are arranged in the middle, so that the stability of the whole floating fan can be conveniently ensured. When in the initial state when there is no yaw, the liquid volume in the first ballast cavity of each floating column 2 is the same.
The first driving member 4 and the second driving member 5 disclosed in the above embodiments may be configured as two-way water pumps in practice, and by being configured as two-way water pumps, two-way flow of liquid may be achieved, so that the volumes of liquid in the first ballast cavity and the second ballast cavity may be adjusted, and weight change and distribution may be achieved.
In practice, the first driving member 4 and the second driving member 5 may be two unidirectional water pumps with opposite driving directions, so that the bidirectional driving structure of the liquid flow can be realized within the protection range.
In a further embodiment, the floating wind turbine with active ballast means further comprises an angle monitor for acquiring the yaw angle of the wind turbine 1, and the angle information acquired by the angle monitor is transferred to the control system. Specifically, the control system acquires the measured rotation angles in the x and y directions of the floating platform in real time through an analysis angle monitor, and calculates the inclination information of the wind turbine generator system 1 through coordinate conversion so as to acquire the water level adjusting direction, so that the first driving piece 4 and/or the second driving piece 5 are started to adjust the mass distribution of the first ballast cavity.
In practice, the first connecting channels 6 and the second connecting channels 7 are located in the same plane, and the plane of the first connecting channels 6 and the plane of the second connecting channels 7 may be coplanar or non-coplanar, so that the weight adjustment is facilitated.
In a specific embodiment, the first connecting channel 6 and the second connecting channel 7 are pipes, for example, may be hard pipes, such as metal pipes, and the first connecting channel 6 and the second connecting channel 7 are formed through hollow channels of the hard pipes.
In a further embodiment, the device further comprises a calculation module, and the calculation module is used for calculating the liquid volume to be adjusted when each first ballast cavity reaches the required weight in the balanced state when the yaw angle is alpha; the calculating module is in signal connection with the control system, and the control system receives the liquid volume which is calculated by the calculating module and is required to be adjusted by each first ballast cavity, so that the flow direction and the flow rate of the liquid in the two first ballast cavities which are in driving communication with the corresponding first driving piece are controlled;
and/or the number of the groups of groups,
the calculating module is used for calculating the liquid volume required to be regulated by each first ballast cavity and the liquid volume required to be regulated by each second ballast cavity when the yaw angle is alpha and controlling the flow direction and the flow rate of the liquid in the first ballast cavity and the second ballast cavity which are communicated with each other by the corresponding second driving piece through the control system;
and when the first driving member 4 and the second driving member 5 simultaneously supply liquid to one first ballast chamber, the liquid supply amounts of the first driving member 4 and the second driving member 5 are distributed according to the length ratio of the first connecting channel 6 and the second connecting channel 7 corresponding to the first driving member 4 and the second driving member 5.
As shown in fig. 3 and 4, wherein calculating the volume of liquid that needs to be adjusted when each first ballast cavity reaches the desired weight comprises:
vertical force balance: the whole floating fan satisfies: Σf Floating device ＝∑G Heavy weight +∑G Mooring of +∑G The pressure of the ballast is controlled, wherein Σf Floating device The floating fan is subjected to buoyancy sum, sigma G Heavy weight Is the sum of the gravity and Sigma G of the floating upright post, the supporting upright post and the wind turbine generator Mooring of Sum, Σg, of the weights of all mooring lines Ballast for ballast The sum of the weights of all the first and second ballast chambers;
therefore, ΣG Ballast for ballast ＝∑f Floating device -∑G Heavy weight -∑G Mooring of ；
The weight G required for each first ballast Ballast for ballast The torque balance is calculated and obtained;
the adjusted liquid volume V required for each of said first ballasts Adjustment of ＝V-V Before ballasting Wherein V is the calculated yaw angle α, the actual required liquid volume of each first ballast cavity in equilibrium, V Before ballasting To re-balance the liquid volume in each first ballast cavity.
Specifically, as shown in fig. 4, the derivation is performed by taking an example that three floating columns are provided and are uniformly arranged along the circumferential direction of the support column, wherein the action points of the three floating columns are respectively denoted as A, B, C, and the action points of the support column are denoted as D:
when the yaw angle is alpha and the floating fan is in a balanced state,
in the vertical direction, the gravity and buoyancy of the whole floating fan are balanced:
∑f floating device ＝∑G Heavy weight +∑G Mooring of +∑G The pressure of the ballast is controlled, wherein Σf Floating device The floating fan is subjected to buoyancy sum, sigma G Heavy weight Is the sum of the gravity and Sigma G of the floating upright post, the supporting upright post and the wind turbine generator Mooring of Sigma G for the weight of all mooring lines Ballast for ballast The sum of the weights of all the first and second ballast chambers; therefore, ΣG Ballast for ballast ＝∑f Floating device -∑G Heavy weight -∑G Mooring of ；
Therefore, ΣG Ballast for ballast ＝G Ballast A +G Ballast B +G Ballast C ＝∑f Floating device -∑G Heavy weight -∑G Mooring of Wherein Σf Floating device ＝f Floating A +f Float B +f Floating C +f Floating D ，∑G Heavy weight ＝G Heavy A +G Weight B +G Heavy C +G Wind turbine generator system +G Support column ，∑G Mooring of ＝G Mooring 1 +G Mooring 2 +G Mooring 3 ；
Point D in fig. 4 satisfies the moment balance to the y-axis: Σmyd=0,
namely, (f) Floating A -G Heavy A -G Mooring 1 -G Ballast A )·AD-(f Float B +f Floating C -G Weight B -G Heavy C -G Mooring 1 -G Mooring 2 -G Ballast B -G Ballast C )·DF+f Push x ·(DE+EG)＝0；
Meanwhile, the point D meets the balance of bending moment on the x axis: Σ MxD =0,
namely, (f) Float B -G Weight B -G Mooring B -G Ballast B )·CF-(f Floating C -G Heavy C -G Mooring C -G Ballast C )·FB+f Push y ·(DE+EG)＝0；
In practice, the weights of the wind turbine, the three floating columns, and the weight of all mooring lines are determined values, and in addition, the formula: AD. DF, DE, EG, CF and FB are both lengths of piping and thus are also determined values;
and f Push-out Can be calculated by measuring wind speed and wind direction, and concretely, f Push-out The numerical value of (2) can be obtained by measuring the wind speed at the center of the hub of the wind turbine, for example, by measuring a wind speed sensor and combining the diameter of the whole wind wheel, so as to obtain the numerical value by calculation; and f Push-out The direction of (2) can be obtained through a wind vane;
and combine with G Ballast A ＝m Liquid g and f Float 1 ＝(m Heavy A +m Liquid )ρ Liquid V Row of rows Wherein m is Liquid For the mass of liquid in the first ballast chamber, m Heavy A Is the mass of the first floating column A, V Row of rows The volume of the drain of the first floating column after being filled with the desired volume of liquid;
furthermore, m Liquid ＝ρ Liquid V，V Row of rows When the floating fan is positioned in the sea, the liquid in the first ballast cavity is also seawater, and V is the volume required by the first ballast cavity of the first floating upright A;
in practice, the V Row of rows The water drainage can be obtained by measuring, for example, scale can be arranged on the floating upright post, the draft of the first floating upright post is observed, and then the water drainage is calculatedVolume V Row of rows ；
For automatic control, a detector for detecting the draft of the first floating column may preferably be provided, and the drain volume V may be automatically calculated Row of rows ；
In summary, the volume V required in the first ballast cavity of the first floating column A can be calculated and compared with the volume V of the liquid in the first ballast cavity of the first floating column A in the state of equilibrium again Before ballasting Calculating the required regulated volume V in the first ballast cavity of the first floating column A Adjustment of ，V Adjustment of ＝V-V Before ballasting ；
The calculated difference is the adjustment amount, the calculated positive and negative values are the adjustment directions, and when the calculated difference is positive, liquid needs to be added into the first ballast cavity of the first floating column A, and when the calculated difference is negative, liquid needs to be extracted from the first ballast cavity of the first floating column A.
It should be noted that the adjustment volume of the liquid volume in the other first ballast chambers is the same as the calculation process described above, and will not be described here again.
Similarly, when only the second connecting channel is used, the liquid volumes of the first and second ballast chambers are adjusted as well with reference to the above calculation formula.
After considering the yaw rate, the principle of selecting a water pump is as follows: under the extreme fastest yaw working condition, the bidirectional water suction pump can still synchronously complete the active ballast water adjusting function under the least adverse condition of single system damage.
For example: the 90-degree yaw takes 8 minutes, namely 480 seconds; the 180 degree yaw takes 16 minutes, i.e. 960 seconds,
the minimum functional requirements that the bi-directional suction pump needs to achieve are:
Max{|G ballast A _t°-G Ballast A _(90+t)°|/480，|G Ballast B _t°-G Ballast B _(90+t)°|/480，|G Ballast C _t°-G Ballast C _(90+t)°|/480，|G Ballast A _t°-G Ballast A _(180+t)°|/960，|G Ballast B _t°-G Ballast B _(180+t)°|/960，|G Ballast C _t°-G Ballast C _(180+t)°|/960}，
Wherein t is any angle.
As used in the specification and in the claims, the terms "a," "an," "the," and/or "the" are not specific to a singular, but may include a plurality, unless the context clearly dictates otherwise. In general, the terms "comprises" and "comprising" merely indicate that the steps and elements are explicitly identified, and they do not constitute an exclusive list, as other steps or elements may be included in a method or apparatus. The inclusion of an element defined by the phrase "comprising one … …" does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises an element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A floating wind turbine having an active ballast means, comprising:
the support upright post is used for installing the wind turbine generator;
the floating upright posts are provided with first ballast cavities capable of containing liquid, the floating upright posts are distributed along the circumferential direction of the supporting upright posts, and the first ballast cavities of the adjacent floating upright posts are respectively communicated through first connecting channels;
the first driving parts are respectively arranged on the first connecting channels and used for providing power in two directions;
and the control system controls the flow direction and the flow rate of the liquid in the two first ballast cavities communicated with the first driving piece by controlling the first driving piece.
2. The floating wind turbine with active ballast means of claim 1, wherein the support columns have second ballast chambers for receiving liquid, and the first ballast chambers are respectively communicated with the second ballast chambers through second connection channels, and second driving members for bi-directionally supplying power are respectively arranged on the second connection channels,
the control system controls the flow direction and the flow rate of the liquid in the first and second ballast cavities communicated with the second driving member by controlling the second driving member.
3. The floating wind turbine with active ballast means of claim 2, wherein the number of floating columns is three and is evenly distributed along the circumference of the support columns.
4. The floating wind turbine with active ballast means of claim 2, wherein the first and second driving members are bi-directional water pumps.
5. The floating wind turbine with active ballast means of claim 2, further comprising an angle monitor for acquiring the yaw angle of the wind turbine, and wherein the angle information acquired by the angle monitor is communicated to the control system.
6. The floating wind turbine with active ballast means of claim 2, wherein the first connecting passage is in the same plane and the second connecting passage is in the same plane.
7. The floating wind turbine with active ballast means of claim 2, further comprising:
the calculating module is used for calculating the liquid volume required to be adjusted by each first ballast cavity in the balanced state when the yaw angle is alpha; the calculating module is in signal connection with the control system, and the control system receives the liquid volume which is calculated by the calculating module and is required to be adjusted by each first ballast cavity, so that the flow direction and the flow rate of the liquid in the two corresponding first ballast cavities which are in driving communication with each other by the first driving piece are controlled;
and/or the number of the groups of groups,
the calculating module is used for calculating the liquid volume required to be regulated by each first ballast cavity and the liquid volume required to be regulated by the second ballast cavity when the yaw angle is alpha and controlling the flow direction and the flow rate of the liquid in the first ballast cavity and the second ballast cavity which are communicated with each other by the corresponding second driving piece through the control system;
and when the first driving piece and the second driving piece supply liquid to one first ballast cavity at the same time, the liquid supply amounts of the first driving piece and the second driving piece are distributed according to the length proportion of the first connecting channel and the second connecting channel corresponding to the first driving piece and the second driving piece.
8. The floating wind turbine with active ballast means of claim 7, wherein said control system, after taking the volume of liquid to be adjusted for each of said first ballast chambers, controls operation of said first driver in communication with one of said first ballast chambers requiring a decrease in liquid volume and one requiring an increase in liquid volume.
9. The floating wind turbine with active ballast means of claim 7, wherein the calculation module calculates the required adjusted liquid volume for each of the first ballast cavities, comprising:
vertical force balance: whole floatThe fan satisfies: Σf Floating device ＝∑G Heavy weight +∑G Mooring of +∑G The pressure of the ballast is controlled, wherein Σf Floating device For the floating fan to receive buoyancy, sigma G Heavy weight Is the sum of the gravity and Sigma G of the floating upright post, the supporting upright post and the wind turbine generator Mooring of Sigma G for the weight of all mooring lines Ballast for ballast The sum of the weights of all the first and second ballast chambers;
the weight G required for each of said first ballasts Ballast for ballast The torque balance is calculated and obtained;
the adjusted liquid volume V required for each of said first ballasts Adjustment of ＝V-V Before ballasting Wherein V is the calculated yaw angle α, the actual required liquid volume of each first ballast cavity in equilibrium, V Before ballasting To re-balance the liquid volume in each first ballast cavity.
10. The floating wind turbine with active ballast means of claim 9, further comprising a detection means for capturing the displacement of the floating column.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210396001.7A CN116946314A (en) | 2022-04-15 | 2022-04-15 | Floating fan with initiative ballast device |
| PCT/CN2023/087963 WO2023198137A1 (en) | 2022-04-15 | 2023-04-13 | Floating wind turbine provided with active ballast device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210396001.7A CN116946314A (en) | 2022-04-15 | 2022-04-15 | Floating fan with initiative ballast device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116946314A true CN116946314A (en) | 2023-10-27 |
Family
ID=88329019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210396001.7A Pending CN116946314A (en) | 2022-04-15 | 2022-04-15 | Floating fan with initiative ballast device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN116946314A (en) |
| WO (1) | WO2023198137A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013040871A1 (en) * | 2011-09-22 | 2013-03-28 | Huang Canguang | Pre-stressed concrete floating platform for supporting offshore wind turbine and marine energy generator |
| CN103758705B (en) * | 2014-02-14 | 2016-03-23 | 南通中远川崎船舶工程有限公司 | A kind of binary floating offshore wind turbine system |
| CN109026551B (en) * | 2018-08-27 | 2020-04-14 | 浙江大学 | Novel floating type wind turbine foundation platform based on tuned liquid column oscillation damper |
| CN210239909U (en) * | 2019-04-20 | 2020-04-03 | 湖南科技大学 | Control device for yaw stability of floating type fan |
| CN111891308A (en) * | 2020-09-16 | 2020-11-06 | 烟台中集来福士海洋工程有限公司 | Floating wind power generation platform |
| CN113306671A (en) * | 2021-05-24 | 2021-08-27 | 中国能源建设集团广东省电力设计研究院有限公司 | Floating type offshore wind turbine system |
-
2022
- 2022-04-15 CN CN202210396001.7A patent/CN116946314A/en active Pending
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2023
- 2023-04-13 WO PCT/CN2023/087963 patent/WO2023198137A1/en unknown
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| Publication number | Publication date |
|---|---|
| WO2023198137A1 (en) | 2023-10-19 |
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