CN116717426A - Variable pitch adjusting device and wind energy and tidal current energy combined power generation system - Google Patents

Variable pitch adjusting device and wind energy and tidal current energy combined power generation system Download PDF

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Publication number
CN116717426A
CN116717426A CN202310689587.0A CN202310689587A CN116717426A CN 116717426 A CN116717426 A CN 116717426A CN 202310689587 A CN202310689587 A CN 202310689587A CN 116717426 A CN116717426 A CN 116717426A
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CN
China
Prior art keywords
blade
wind
power generation
piece
tidal current
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310689587.0A
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Chinese (zh)
Inventor
陈乃超
颜华鑫
苟培瑜
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Shanghai Electric Power University
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Shanghai Electric Power University
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Application filed by Shanghai Electric Power University filed Critical Shanghai Electric Power University
Priority to CN202310689587.0A priority Critical patent/CN116717426A/en
Publication of CN116717426A publication Critical patent/CN116717426A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • 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
    • F03D7/022—Adjusting aerodynamic properties of the blades
    • F03D7/0224—Adjusting blade pitch
    • 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
    • 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
    • F03B15/00—Controlling
    • F03B15/02—Controlling by varying liquid flow
    • F03B15/04—Controlling by varying liquid flow of turbines
    • F03B15/06—Regulating, i.e. acting automatically
    • 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
    • F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
    • 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
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • 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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • 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
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/32—Wind speeds
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • 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
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/321—Wind directions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • 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
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/341—Liquid flow velocity or direction

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Power Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Oceanography (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The application discloses a variable pitch regulating device and a wind energy and tidal current energy combined power generation system, and belongs to the field of power generation, wherein the variable pitch regulating device comprises a shell assembly, a rotating part and a driving part, wherein the driving part is arranged in the rotating part; the blade assembly comprises a blade which is rotatably arranged on the rotating piece and is in transmission connection with the driving piece; an adjustment assembly includes a lock disposed on the blade, the lock adapted to limit loosening of the blade. The opening angle of the blade is adjusted through the driving piece, and the locking piece can limit transmission between the driving piece and the blade, so that the opening angle of the blade is kept unchanged, and the stability of the blade is further ensured.

Description

Variable pitch adjusting device and wind energy and tidal current energy combined power generation system
Technical Field
The application relates to the technical field of power generation, in particular to a variable pitch adjusting device and a wind energy and tidal current energy combined power generation system.
Background
The wind generating set is a generating system for converting wind energy into electric energy, wherein the size of the pitch angle of the blades directly influences the wind energy absorbed by the wind generating set. The pitch angle of the blades of the wind generating set is required to be continuously adjusted according to the wind speed during operation, so that the wind generating set is ensured to be in an optimal operation state.
The existing large-scale wind turbine generator system pitch device mostly adopts a special pitch bearing to change the pitch, but the special pitch bearing has large volume, high manufacturing cost and difficult manufacture, transportation and installation, and the small-scale wind turbine generator system has a simple structure, and the pitch bearing is difficult to adapt to the small-scale wind turbine generator system, so that the existing small-scale wind turbine generator system does not adopt the pitch bearing, but adjusts the angle of the blade through the matching of a simpler motor, a gear and a rack, but in actual work, the rack is influenced by the vibration of the wind turbine generator system to generate movement, so that the gear rotates in a small amplitude, and finally the blade is unstable.
In addition, the wind driven generator and the tidal current energy generator of the existing offshore power generator platform cannot automatically sense the wind speed and the flow speed, and the blade angles of the wind driven generator and the tidal current energy generator cannot be automatically adjusted.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned and/or existing problems with power generation devices.
It is therefore an object of the present application to provide a pitch adjustment device, which solves the problem of how to solve the problem of stabilizing the blades of the pitch adjustment device.
In order to solve the technical problems, the application provides the following technical scheme: a pitch adjustment device comprising, a housing assembly including a rotating member and a driving member disposed within the rotating member; the blade assembly comprises a blade which is rotatably arranged on the rotating piece and is in transmission connection with the driving piece; an adjustment assembly includes a lock disposed on the blade, the lock adapted to limit loosening of the blade.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the rotary piece is provided with three mounting holes, and the three mounting holes are uniformly arranged around the center of the rotary piece.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the blade assembly further comprises a connecting piece, one end of the connecting piece is rotationally connected with the mounting hole, and the other end of the connecting piece is fixedly connected with the blade.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the connecting piece include the pivot and with pivot fixed connection's body portion, the blade with body portion fixed connection, fixed mounting has the gear in the pivot, be equipped with the spout of vertical setting in the rotating member, slidingtype elastic mounting has the rack in the spout, the rack with the gear meshes mutually.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the output end of the driving piece is provided with a first bevel gear, the rotating piece is rotationally provided with an output shaft, one end of the output shaft is provided with a second bevel gear meshed with the first bevel gear, the other end of the output shaft is provided with a cam, and the cam is in contact with the bottom of the rack.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the locking piece comprises a sliding sleeve which is slidably arranged on the rotating shaft, the sliding sleeve is positioned between the gear and the body part, a second spring is sleeved on the rotating shaft, and two ends of the second spring are respectively connected with the sliding sleeve and the body part.
As a preferable embodiment of the pitch adjusting device of the present application, wherein: the locking piece comprises a connecting arm, one end of the connecting arm is fixedly connected with the sliding sleeve, the other end of the connecting arm is provided with a ratchet, a ratchet strip is elastically installed on the rack, the ratchet is suitable for being clamped with the ratchet strip, and the ratchet is suitable for limiting the movement of the rack.
The variable pitch adjusting device has the beneficial effects that: the opening angle of the blade is adjusted through the driving piece, and the locking piece can limit transmission between the driving piece and the blade, so that the opening angle of the blade is kept unchanged, and the stability of the blade is further ensured.
The application provides a wind energy and tidal current energy combined power generation system, which aims to solve the problem of how to automatically pitch an offshore power generator platform according to wind speed and flow rate.
In order to solve the technical problems, the application provides the following technical scheme: the wind energy and tidal current energy combined power generation system comprises the pitch adjusting device, and a control module, wherein the control module comprises a controller, a wind power generation module, a wind driven generator and a wind speed and direction sensing module, and the wind power generator and the wind speed and direction sensing module are electrically connected with the controller; the tidal current energy power generation module comprises a tidal current energy power generator and a flow speed and flow direction sensing module which are electrically connected with the controller; the power transmission module comprises a first main relay and a first thyristor which are electrically connected with the wind power generator, and a second main relay and a second thyristor which are electrically connected with the tidal current energy generator.
As a preferable scheme of the wind energy and tidal current energy combined power generation system, the application comprises the following steps: the main switch is electrically connected with the first main relay, the first thyristor, the second main relay and the second thyristor.
As a preferable scheme of the wind energy and tidal current energy combined power generation system, the application comprises the following steps: the power supply system further comprises a fuse and a transformer which are electrically connected with the main switch in sequence, wherein the transformer is used for being connected with an external power grid.
The wind energy and tidal current energy combined power generation system has the beneficial effects that: the wind speed sensing module senses the wind speed, the flow speed sensing module senses the flow speed of water flow and transmits data to the controller, and the controller controls the wind driven generator and the tidal current energy generator to automatically change the pitch.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
fig. 1 is a structural view of a pitch adjustment device.
Fig. 2 is an internal structural view of the pitch adjustment device.
Fig. 3 is a transmission diagram of the connection piece of the pitch adjustment device.
Fig. 4 is a transmission diagram of the locking member of the pitch adjustment device.
Fig. 5 is an exploded view of the connection member and the locking member of the pitch adjustment device.
FIG. 6 is a flow chart of a wind energy and tidal current energy combined power generation system of a pitch adjustment device.
FIG. 7 is a second flowchart of a wind energy and tidal current energy combined power generation system of the pitch adjustment device.
FIG. 8 is a wiring diagram of a wind energy and tidal current energy combined power generation system of a pitch adjustment device.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 to 5, a first embodiment of the present application provides a pitch adjusting apparatus, which includes a housing assembly 100, a blade assembly 200, and an adjusting assembly 300, wherein the housing assembly 100 is used for mounting components, the blade assembly 200 is used for driving a rotating member 101 to rotate, and the adjusting assembly 300 is used for adjusting an opening angle of a blade 201 and fixing the blade 201.
Specifically, the housing assembly 100 includes a rotating member 101 and a driving member 102, and the driving member 102 of the present embodiment is preferably a motor, and the motor is disposed in the rotating member 101; the blade assembly 200 comprises blades 201, the blades 201 are rotatably arranged on the rotating piece 101, the blades 201 are three, the three blades 201 are uniformly arranged around the center of the rotating piece 101, the blades 201 are in transmission connection with the output end of a motor, and the motor can drive the blades 201 to rotate so as to adjust the opening angle of the blades 201; the adjusting assembly 300 comprises a locking piece 301, wherein the locking piece 301 is arranged on the blade 201 and is in transmission connection with the driving piece 102, and the locking piece 301 can limit the loosening of the blade 201, namely, after the motor drives the blade 201 to adjust a proper opening angle, the opening angle of the blade 201 is forced to keep inconvenient, the opening angle of the blade 201 is prevented from being changed due to the influence of vibration, and the stability of the blade 201 is ensured.
When the motor-driven blade 201 is used, the motor drives the blade 201 to rotate, so that the blade 201 can adjust the opening angle of the motor-driven blade, and then the locking piece 301 locks the blade 201, so that the blade 201 can avoid changing the opening angle due to shaking generated in the working process of the generator set, and the stability of the blade 201 is ensured.
Example 2
Referring to fig. 1 to 5, a second embodiment of the present application is based on the previous embodiment.
Specifically, three mounting holes are formed in the rotating member 101, the three mounting holes are uniformly formed around the center of the rotating member 101, the three mounting holes are arranged in one-to-one correspondence with the three blades 201, and the mounting holes are used for mounting the blades 201.
Preferably, the blade assembly 200 further includes a connecting member 202, one end of the connecting member 202 is rotatably connected to the mounting hole through a bearing, and the other end is fixedly connected to the blade 201 through a bolt.
Preferably, the connecting piece 202 includes a rotating shaft 202a and a body portion 202b, the body portion 202b is fixedly connected with the rotating shaft 202a through bolts or integrally formed, the cross section of the body portion 202b is in a U shape with an opening rightward, the blade 201 is inserted into the opening of the body portion 202b and is fixedly connected through bolts, the central axis of the rotating shaft 202a is perpendicular to the left side end face of the body portion 202b, a gear 202c is fixedly installed on the rotating shaft 202a, a vertically arranged sliding groove is formed in the rotating piece 101, a rack 202d is slidably installed in the sliding groove, a first spring 301f is arranged at the top of the rack 202d, the first spring 301f is connected with the upper inner surface of the sliding groove, the rack 202d is meshed with the gear 202c, when the rack 202d moves vertically, the gear 202c can be driven to rotate, and when the gear 202c rotates, the blade 201 can be driven to rotate through the connecting piece 202 to adjust the opening angle of the blade 201.
Preferably, a first bevel gear 202e is arranged at the output end of the motor, an output shaft 202h which is horizontally arranged is rotatably arranged on the rotating member 101, a second bevel gear 202f which is meshed with the first bevel gear 202e is arranged at one end, close to the motor, of the output shaft 202h, a cam 202g is fixed at the other end of the output shaft 202h, the cam 202g is in contact with the bottom of the rack 202d, when the first bevel gear 202e at the output end of the motor rotates, the output shaft 202h is driven to rotate through the second bevel gear 202f, and when the output shaft 202h rotates, a cam 202g which is arranged on the output shaft 202h is driven to rotate, the cam 202g can push the rack 202d to rise or enable the rack 202d to fall in the rotating process, and the lifting of the rack 202d drives the blades 201 through the gear 202c to adjust the opening angle.
Further, the locking piece 301 includes a sliding sleeve 301a, the sliding sleeve 301a is slidably mounted on the rotating shaft 202a, the sliding sleeve 301a is located between the gear 202c and the body 202b, a second spring 301b is further sleeved on the rotating shaft 202a, two ends of the second spring 301b are respectively connected with the sliding sleeve 301a and the body 202b, when the blade 201 is static, the right end of the sliding sleeve 301a is pressed by the second spring 301b, and therefore the left end of the sliding sleeve 301a is attached to the right end face of the gear 202 c.
Further, the locking piece 301 includes a connecting arm 301c, one end of the connecting arm 301c is fixedly connected with the outer circumferential surface of the sliding sleeve 301a through a bolt or integrally formed, the other end is provided with a ratchet 301d, one side end surface of the rack 202d far away from the sliding sleeve 301a is provided with an inwards concave installation groove, the ratchet 301e is slidably installed in the installation groove, the bottom of the ratchet 301e is provided with a third spring 301g, the third spring 301g is connected with the inner bottom surface of the installation groove, when the blade 201 rotates, the sliding sleeve 301a can move towards the direction far away from the ratchet 301e under the centrifugal action, the ratchet 301d is driven by the connecting arm 301c to move towards the direction close to the ratchet 301e, when the rotating speed of the blade 201 is in a normal range or overspeed, the ratchet 301d is clamped with the ratchet 301e, but when the cam 202g rotates, a gap is generated between the cam 202g and the bottom of the rack 202d, the cam 202d is not limited to be moved downwards by the thrust of the first spring 301f, when the blade 201 rotates slowly, the blade 201 rotates under the centrifugal action, the blade 301e is not clamped with the blade 301e, the rotating angle is not limited by the rack 301e, the normal angle is regulated, and the ratchet 301d is not regulated, and the rotating angle is not regulated, and the normal angle is not regulated, and the rotating angle of the ratchet 301d is limited.
When in use, namely when the wind speed is normal and the blade 201 rotates at normal speed, the sliding sleeve 301a is centrifugally acted to clamp the ratchet 301d and the ratchet strip 301e, so that the rack 202d is limited to ascend, and the stability of the blade 201 is ensured;
when the wind speed is high, the blades 201 rotate at an overspeed, the original ratchet 301d and the ratchet 301e are in a clamping state, the rack 202d cannot ascend, the motor rotates positively, the cam 202g rotates, the rack 202d is forced to descend by the pressure of the first spring 301f, the ratchet 301e is periodically contracted inwards under the pressure of the ratchet 301d and moves downwards along with the rack 202d in the descending process of the rack 202d, when the opening angle of the rotation of the blades 201 rotates to the normal speed of the blades 201, the motor stops working, the ratchet 301d and the ratchet 301e cooperate to limit the rack 202d to ascend, the blades 201 are guaranteed to be stable, the wind speed is higher, the ratchet 301d and the ratchet 301e are clamped tightly, the blades 201 cannot move in disorder before the motor plays a role;
when the wind speed is small and the rotation is slow, the centrifugal action of the ratchet 301d is small, the ratchet 301d and the ratchet 301e are not in a clamping state, the motor reversely rotates to enable the rack 202d to be lifted by the cam 202g, the blades 201 adjust the opening angle, after the blades 201 rotate to a normal speed, the centrifugal action of the ratchet 301d is strengthened enough to enable the ratchet to be automatically clamped with the ratchet 301e, and stability of the blades 201 can be guaranteed after self-locking is completed.
Example 3
Referring to fig. 6 to 8, a third embodiment of the present application is based on the first two embodiments. The embodiment provides a wind energy and tidal current energy combined power generation system, which comprises the pitch adjusting device, a control module 400, a wind power generation module 500, a tidal current energy generation module 600 and a power transmission module 700, wherein the control module 400 is used for controlling the operation of a motor, the wind power generation module 500 can generate power by utilizing wind power, the tidal current energy generation module 600 can generate power by utilizing water flow, and the power transmission module 700 is used for transmitting power to a power grid.
Specifically, the control module 400 includes a controller 401, a wind power generation module 500, and a wind power generator 501 and a wind speed sensing module 502 electrically connected to the controller 401; the wind driven generator 501 comprises a first generator 501a and a first gear box 501b, the tidal current energy power generation module 600 comprises a tidal current energy generator 601 and a flow rate sensing module 602 which are electrically connected with the controller 401, and the tidal current energy generator 601 comprises a second generator 601a and a second gear box 601b; the power transmission module 700 includes a first main relay 701 and a first thyristor 702 electrically connected to the wind power generator 501, and a second main relay 703 and a second thyristor 704 electrically connected to the tidal current energy generator 601.
Preferably, the power supply further comprises a main switch 705 electrically connected with each of the first main relay 701, the first thyristor 702, the second main relay 703 and the second thyristor 704, and a fuse 706 and a transformer 707 electrically connected with the main switch 705 in sequence, wherein the transformer 707 is used for connecting an external power grid.
When the wind power generator is used, the wind speed sensing module 502 senses the wind speed, the flow speed sensing module 602 senses the flow speed of water flow, data are transmitted to the controller 401, and the controller 401 controls the wind power generator 501 and the tidal current energy generator 601 to automatically pitch.
Above the first gear box 501b is a wind power generator module 500, wind power drives the wind power generator 501 to rotate the blade 201, and after the speed of the first gear box 501b is regulated, the first power generator 501a is driven to rotate to generate a large amount of induced electromotive force and induced current, so that a large amount of electric energy is generated. The control module 400 obtains wind speed and wind direction through the wind speed sensing module 502, and the rotation speed and state of the wind driven generator 501, and drives the pitch adjusting device and signal feedback through the control module 401 to adjust the angle of the blade 201 in real time. The absorbed mechanical energy is controlled, and the impact of wind power on the wind driven generator module 500 is reduced on the premise of ensuring that the maximum energy is obtained. The tidal current energy power generation module 600 is arranged below, and similar to the wind driven generator module 500, the tidal current energy power generation module 600 obtains the flow speed and direction of ocean tidal current through the flow speed sensing module 602, and the position and angle of the turbine of the second generator 601a are adjusted in real time through the control module 400 to obtain the maximum energy and reduce the tidal current impact. The high flow rate tide drives the turbine to rotate when the ocean tide is rising and falling, so that the second generator 601a is driven to rotate to generate a large amount of induced electromotive force and induced current, and a large amount of electric energy is obtained. The wind driven generator module 500 and the tidal current energy power generation module 600 are connected into a power grid in a grid mode, and stable electric energy output is controlled through power feedback adjustment. The wind energy and the tidal current energy are utilized simultaneously, the problem of periodic unstable power generation is solved, the power generation capacity of the platform is greatly improved through the power generation combination of the wind power generator module 500 above and the tidal current energy power generation module 600 below, and meanwhile, the space resources are fully utilized.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.

Claims (10)

1. A pitch control device, characterized in that: comprising the steps of (a) a step of,
a housing assembly (100) comprising a rotary member (101) and a drive member (102) disposed within the rotary member (101);
a blade assembly (200) comprising a blade (201) rotatably mounted on said rotary member (101) and drivingly connected to said driving member (102);
an adjustment assembly (300) comprising a locking member (301) arranged on the blade (201), the locking member (301) being adapted to limit loosening of the blade (201).
2. The pitch adjustment device of claim 1, wherein: three mounting holes are formed in the rotating piece (101), and the three mounting holes are uniformly formed around the center of the rotating piece (101).
3. The pitch adjustment device of claim 2, wherein: the blade assembly (200) further comprises a connecting piece (202), one end of the connecting piece (202) is rotationally connected with the mounting hole, and the other end of the connecting piece is fixedly connected with the blade (201).
4. A pitch adjustment device according to claim 3, wherein: the connecting piece (202) comprises a rotating shaft (202 a) and a body part (202 b) fixedly connected with the rotating shaft (202 a), the blades (201) are fixedly connected with the body part (202 b), a gear (202 c) is fixedly installed on the rotating shaft (202 a), a vertically arranged chute is formed in the rotating piece (101), a rack (202 d) is elastically installed in the chute in a sliding mode, and the rack (202 d) is meshed with the gear (202 c).
5. The pitch adjustment device of claim 4, wherein: the novel gear rack is characterized in that a first bevel gear (202 e) is arranged at the output end of the driving piece (102), an output shaft (202 h) is rotatably arranged in the rotating piece (101), a second bevel gear (202 f) meshed with the first bevel gear (202 e) is arranged at one end of the output shaft (202 h), a cam (202 g) is arranged at the other end of the output shaft (202 h), and the cam (202 g) is in contact with the bottom of the rack (202 d).
6. The pitch control device of claim 4 or 5, wherein: the locking piece (301) comprises a sliding sleeve (301 a) which is slidably mounted on the rotating shaft (202 a), the sliding sleeve (301 a) is located between the gear (202 c) and the body portion (202 b), the rotating shaft (202 a) is further sleeved with a second spring (301 b), and two ends of the second spring (301 b) are respectively connected with the sliding sleeve (301 a) and the body portion (202 b).
7. The pitch adjustment device of claim 6, wherein: the locking piece (301) comprises a connecting arm (301 c), one end of the connecting arm (301 c) is fixedly connected with the sliding sleeve (301 a), a ratchet (301 d) is arranged at the other end of the connecting arm, a ratchet strip (301 e) is elastically installed on the rack (202 d), the ratchet (301 d) is suitable for being clamped with the ratchet strip (301 e), and the ratchet (301 d) is suitable for limiting the rack (202 d) to move.
8. A wind energy and tide energy combined power generation system is characterized in that: comprising a pitch adjustment device according to any one of claims 1 to 7, and,
a control module (400) comprising a controller (401),
a wind power generation module (500) comprising a wind power generator (501) and a wind speed sensing module (502) electrically connected to the controller (401);
a tidal current energy power generation module (600) comprising a tidal current energy power generator (601) and a flow rate sensing module (602) which are electrically connected with the controller (401);
-a power transmission module (700) comprising a first main relay (701) and a first thyristor (702) electrically connected to the wind generator (501), and a second main relay (703) and a second thyristor (704) electrically connected to the tidal current energy generator (601).
9. The wind energy and tidal current energy combined power generation system of claim 8, wherein: the power transmission module (700) further comprises a main switch (705) electrically connected to each of the first main relay (701), the first thyristor (702), the second main relay (703) and the second thyristor (704).
10. The wind energy and tidal current energy combined power generation system of claim 9, wherein: the power transmission module (700) further comprises a fuse (706) and a transformer (707) electrically connected in sequence with the main switch (705), the transformer (707) being for connecting to an external power grid.
CN202310689587.0A 2023-06-12 2023-06-12 Variable pitch adjusting device and wind energy and tidal current energy combined power generation system Pending CN116717426A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310689587.0A CN116717426A (en) 2023-06-12 2023-06-12 Variable pitch adjusting device and wind energy and tidal current energy combined power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310689587.0A CN116717426A (en) 2023-06-12 2023-06-12 Variable pitch adjusting device and wind energy and tidal current energy combined power generation system

Publications (1)

Publication Number Publication Date
CN116717426A true CN116717426A (en) 2023-09-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310689587.0A Pending CN116717426A (en) 2023-06-12 2023-06-12 Variable pitch adjusting device and wind energy and tidal current energy combined power generation system

Country Status (1)

Country Link
CN (1) CN116717426A (en)

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