CN111005840A - Fan control method and device and wind power generation system - Google Patents

Fan control method and device and wind power generation system Download PDF

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Publication number
CN111005840A
CN111005840A CN201911311391.8A CN201911311391A CN111005840A CN 111005840 A CN111005840 A CN 111005840A CN 201911311391 A CN201911311391 A CN 201911311391A CN 111005840 A CN111005840 A CN 111005840A
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China
Prior art keywords
fan
control instruction
rotating speed
preset
weather information
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Pending
Application number
CN201911311391.8A
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Chinese (zh)
Inventor
张家前
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Hefei Sungrow New Energy Technology Co Ltd
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Hefei Sungrow New Energy Technology Co Ltd
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Priority to CN201911311391.8A priority Critical patent/CN111005840A/en
Publication of CN111005840A publication Critical patent/CN111005840A/en
Pending legal-status Critical Current

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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
    • F03D7/0204—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
    • 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
    • F03D7/0264—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
    • F03D7/0268—Parking or storm protection
    • 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
    • F03D7/0276—Controlling wind motors  the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling rotor speed, e.g. variable speed
    • 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

Abstract

The embodiment of the invention discloses a fan control method, a fan control device and a wind power generation system, wherein the fan control method comprises the following steps: when the current rotating speed of the fan is larger than a first preset threshold value, receiving weather information sent by a cloud server, wherein the weather information at least comprises wind power information; generating a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction; controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to a first control instruction; or controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; the first preset inclination angle is smaller than the second preset inclination angle. The fan control method, the fan control device and the wind power generation system provided by the embodiment of the invention can ensure that the fan has larger generated energy and prolong the service life of the fan.

Description

Fan control method and device and wind power generation system
Technical Field
The embodiment of the invention relates to a wind power generation technology, in particular to a fan control method and device and a wind power generation system.
Background
Along with the requirement on the green and environment protection of power generation, the wind power generation is more and more widely applied, wind power generation is carried out in many areas by using a fan, the power generation efficiency is influenced by the rotating speed and the orientation of the fan, and the service life of the fan is also influenced by the improper rotating speed and orientation, so that the control of the rotating speed and the orientation of the fan is very important work.
At present, the existing fan control method enables a fan to generate power by controlling the direction of the fan to be always in the windward direction, but the direction of the fan cannot be adjusted when the wind speed is too high or the weather changes, and the direction of the fan is still in the windward direction, so that the service life and the power generation amount of the fan are influenced.
Disclosure of Invention
The embodiment of the invention provides a fan control method, a fan control device and a wind power generation system, which are used for ensuring that a fan has larger generating capacity and prolonging the service life of the fan.
In a first aspect, an embodiment of the present invention provides a fan control method, where the fan control method includes:
when the current rotating speed of the fan is larger than a first preset threshold value, receiving weather information sent by a cloud server, wherein the weather information at least comprises wind power information;
generating a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction;
controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to a first control instruction; alternatively, the first and second electrodes may be,
controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; the first preset inclination angle is smaller than the second preset inclination angle.
Optionally, according to weather information, generate fan control command, include:
if the weather information indicates that the current moment has the super-strong gust, generating a first control instruction; alternatively, the first and second electrodes may be,
and if the weather information indicates that the current moment does not have the super gust, generating a second control instruction.
Optionally, the fan control method further includes:
acquiring the current rotating speed and the current orientation of the fan;
and judging whether the current rotating speed of the fan is greater than a first preset threshold value or not.
Optionally, the fan control method further includes:
acquiring longitude and latitude information of a fan;
and uploading the current rotating speed and current orientation of the fan and the longitude and latitude information of the fan to a cloud server.
Optionally, the weather information is weather information of the position where the fan is located, and the cloud server determines the weather information of the position where the fan is located according to the longitude and latitude information of the fan.
Optionally, if the current rotating speed of the fan is less than or equal to a first preset threshold, determining whether the current rotating speed of the fan is less than a second preset threshold; the first preset threshold is larger than the second preset threshold;
if the current rotating speed of the fan is greater than or equal to a second preset threshold value, controlling the orientation and the rotating speed of the fan to be unchanged;
and if the current rotating speed of the fan is smaller than a second preset threshold value, generating a third control instruction, and controlling the orientation and the rotating speed of the fan according to the third control instruction.
Optionally, controlling the direction and the rotation speed of the fan according to a third control instruction includes:
acquiring the wind speed and the wind direction in a preset time period, wherein the preset time period is the time period from the first moment to the current moment;
if the wind speed and the wind direction in the preset time period are changed, controlling the orientation and the rotating speed of the fan to be unchanged according to a third control instruction;
and if the wind speed and the wind direction in the preset time period are unchanged, controlling the fan to rotate to the windward direction according to a third control instruction.
In a second aspect, an embodiment of the present invention further provides a fan control device, including:
the receiving module is used for receiving weather information sent by the cloud server when the current rotating speed of the fan is larger than a first preset threshold value, and the weather information at least comprises wind power information;
the instruction generation module is used for generating a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction;
the control module is used for controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to a first control instruction; or controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; the first preset inclination angle is smaller than the second preset inclination angle.
In a third aspect, an embodiment of the present invention further provides a wind power generation system, where the wind power generation system includes a fan, a fan controller, and a cloud server, and the fan control device in the second aspect is integrated in the fan controller; the fan is electrically connected with the fan controller, and the fan controller is in communication connection with the cloud server.
Optionally, the wind power generation system further comprises a tower and a connecting flange, the fan is connected with the tower through the connecting flange, the fan comprises a steering engine, blades, an energy storage battery and a shell, the steering engine and the blades are connected through a connecting shaft, the energy storage battery is electrically connected with the steering engine, and the steering engine and the energy storage battery are arranged in the shell.
The embodiment of the invention provides a fan control method, a fan control device and a wind power generation system, wherein when the current rotating speed of a fan is greater than a first preset threshold value, weather information sent by a cloud server is received, and a fan control instruction is generated according to the weather information, so that the fan is controlled to rotate to the leeward direction or the windward direction of a first preset inclination angle according to a first control instruction in the fan control instruction, or the fan is controlled to rotate to the windward direction of a second preset inclination angle according to a second control instruction in the fan control instruction, and the rotating speed of the fan is smaller than or equal to the first preset threshold value. The fan control method, the fan control device and the wind power generation system provided by the embodiment of the invention can generate a control instruction according to the wind power information included in the weather information so as to control the fan to adjust the direction and the rotating speed according to the weather information, thereby ensuring that the fan has larger generated energy when the weather is better, such as no superstrong gust, and preventing the fan from being damaged due to the bad weather, such as superstrong gust, so that the service life of the fan is prolonged.
Drawings
Fig. 1 is a flowchart of a fan control method according to an embodiment of the present invention;
fig. 2 is a flowchart of a fan control method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a fan control method according to a third embodiment of the present invention;
fig. 4 is a flowchart of a fan control method according to a fourth embodiment of the present invention;
fig. 5 is a block diagram of a fan control device according to a fifth embodiment of the present invention;
FIG. 6 is a block diagram of a wind energy generation system according to a sixth embodiment of the present invention;
fig. 7 is a schematic structural diagram of a fan according to a sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Example one
Fig. 1 is a flowchart of a fan control method according to an embodiment of the present invention, where the embodiment is applicable to a wind power generation system, and the method may be executed by a fan controller, and referring to fig. 1, the fan control method specifically includes the following steps:
and step 110, when the current rotating speed of the fan is greater than a first preset threshold value, receiving weather information sent by the cloud server.
The weather information at least comprises wind power information, the weather information can be wind power information and other weather information of a geographical position where the fan is located within several hours from the current moment, the first preset threshold can be the highest threshold of the rotating speed of the fan, for example, the first preset threshold is 1000r/min, the first preset threshold can be set according to the position where the fan is located and the actual situation, and specific numerical values are not limited.
And 120, generating a fan control instruction according to the weather information.
The fan control instruction comprises a first control instruction or a second control instruction, and illustratively, if the wind power information included in the weather information indicates that super gust wind exists at the present moment, a first control instruction corresponding to the super gust wind can be generated; and if the wind power information included in the weather information indicates that no superstrong gust exists at the current moment, generating a second control instruction corresponding to the superstrong gust.
And step 130, controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to the first control instruction.
Specifically, the first preset inclination angle is a smaller inclination angle, and when the fan rotates to the leeward direction or the windward direction of the first preset inclination angle, the rotating speed of the fan is smaller, so that damage to the fan caused by super gust can be prevented.
And 140, controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value.
The first preset inclination angle is smaller than the second preset inclination angle, the first preset threshold value can be the highest threshold value of the rotating speed of the fan, the rotating speed of the fan corresponding to the windward direction of the second preset inclination angle is larger than the rotating speed of the fan corresponding to the windward direction of the first preset inclination angle, so that the rotating speed of the fan is larger than the rotating speed of the fan when a strong gust occurs, and the rotating speed of the fan corresponding to the windward direction of the second preset inclination angle is smaller than or equal to the first preset threshold value, namely, the highest threshold value of the rotating speed of the fan is smaller than, so that the fan is ensured to have enough generated energy and the damage caused by the fact that the rotating speed of the fan is too high to exceed the highest rotating speed which the fan can bear is prevented, and.
According to the fan control method provided by the embodiment, when the current rotating speed of the fan is greater than a first preset threshold value, the weather information sent by the cloud server is received, and the fan control instruction is generated according to the weather information, so that the fan is controlled to rotate to the leeward direction or the windward direction of a first preset inclination angle according to the first control instruction in the fan control instruction, or the fan is controlled to rotate to the windward direction of a second preset inclination angle according to the second control instruction in the fan control instruction, and the rotating speed of the fan is smaller than or equal to the first preset threshold value. The fan control method provided by the embodiment can generate a control instruction according to the wind power information included in the weather information so as to control the fan to adjust the orientation and the rotating speed according to the weather information, so that the fan is ensured to have larger generated energy when the weather is better without ultra-strong gust, and the fan is prevented from being damaged due to severe weather such as ultra-strong gust, so that the service life of the fan is prolonged.
Example two
Fig. 2 is a flowchart of a fan control method according to a second embodiment of the present invention, which may be based on the second embodiment, and referring to fig. 2, the fan control method specifically includes the following steps:
step 210, when the current rotating speed of the fan is greater than a first preset threshold value, receiving weather information sent by the cloud server.
Step 220, judging whether the weather information indicates that super gust exists at the current moment; if so, go to step 230; if not, step 250 is performed.
Step 230, generate a first control command.
The fan control instruction comprises a first control instruction, and when the super-strong gust occurs, the first control instruction can be generated.
And step 240, controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to the first control instruction.
Specifically, the first preset inclination angle is a smaller inclination angle, and when the fan rotates to the leeward direction or the windward direction of the first preset inclination angle, the rotating speed of the fan is smaller, so that damage to the fan caused by super gust can be prevented.
And step 250, generating a second control instruction.
The fan control instruction comprises a first control instruction or a second control instruction, and the second control instruction can be generated when no super strong gust exists.
And step 260, controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value.
The first preset inclination angle is smaller than the second preset inclination angle, the first preset threshold value can be the highest threshold value of the rotating speed of the fan, the rotating speed of the fan corresponding to the windward direction of the second preset inclination angle is larger than the rotating speed of the fan corresponding to the windward direction of the first preset inclination angle, the rotating speed of the fan corresponding to the windward direction of the second preset inclination angle is smaller than or equal to the first preset threshold value, sufficient generating capacity of the fan is guaranteed, and damage caused by the fact that the rotating speed of the fan exceeds the highest rotating speed which the fan can bear due to overhigh rotating speed is prevented.
The fan control method that this embodiment provided, can be according to the wind-force information generation control command that includes in the weather information, with control fan orientation and rotational speed according to weather information adjustment, thereby control the fan and rotate the windward direction at the second preset inclination when weather is better if there is not superstrong gust, guarantee that the rotational speed of fan is less than the highest threshold value of rotational speed and in suitable within range, can make the fan have great generated energy, and when having superstrong gust, control the fan and rotate the windward direction to leeward direction or first preset inclination, prevent the fan because of damage that superstrong gust received like superstrong.
EXAMPLE III
Fig. 3 is a flowchart of a fan control method according to a third embodiment of the present invention, which may be based on the first embodiment, and referring to fig. 3, the fan control method specifically includes the following steps:
step 310, acquiring the current rotating speed and the current orientation of the fan;
specifically, longitude and latitude information of the fan can be acquired, the current rotating speed and the current orientation of the fan and the longitude and latitude information of the fan are uploaded to the cloud server, and the cloud server can determine weather information of the position of the fan according to the longitude and latitude information of the fan.
Step 320, if the current rotating speed of the fan is less than or equal to a first preset threshold, judging whether the current rotating speed of the fan is less than a second preset threshold; if so, go to step 330; if not, step 380 is performed.
The first preset threshold is greater than the second preset threshold, the first preset threshold may be a highest threshold of the fan rotation speed, for example, the first preset threshold is 1000r/min, the second preset threshold may be a lowest threshold of the fan rotation speed, for example, the second preset threshold is 100r/min, the first preset threshold and the second preset threshold may be set according to a geographical location where the fan is located and an actual situation, and specific numerical values are not limited.
Step 330, generating a third control instruction.
Specifically, if the current rotational speed of the fan is less than the second preset threshold, a third control instruction is generated, where the third control instruction may include an instruction for controlling the direction and rotational speed of the fan to be unchanged, or an instruction for controlling the fan to rotate to the windward direction.
And 340, acquiring the wind speed and the wind direction in a preset time period.
The preset time period is a time period from the first time to the current time, and for example, the preset time period is a time period from 12 hours before the current time to the current time, and the preset time period is specifically set according to an actual situation, and is not limited herein.
Step 350, judging whether the wind speed and the wind direction in a preset time period change or not; if yes, go to step 360; if not, step 370 is performed.
Step 360, controlling the orientation and the rotating speed of the fan to be unchanged according to a third control instruction;
specifically, if the wind speed and the wind direction in the preset time period change, the wind speed and the wind direction are unstable, the orientation and the rotating speed of the fan can be controlled to be unchanged, the current rotating speed of the fan is lower than a second preset threshold value, the rotating speed is low, therefore, the generated energy is low, meanwhile, the fan cannot be influenced by overlarge wind speed, and the normal operation of the fan is guaranteed. Because the wind speed and the wind direction are unstable, the orientation and the rotating speed of the fan can be controlled to be unchanged, and the orientation and the rotating speed of the fan are adjusted after the wind speed and the wind direction are stable.
And 370, controlling the fan to rotate to the windward direction according to a third control instruction.
Specifically, if the wind speed and the wind direction in the preset time period are unchanged, which indicates that the wind speed and the wind direction are relatively stable, the fan can be controlled to rotate to the windward direction, so that the rotating speed of the fan is higher than a second preset threshold, the rotating speed of the fan is relatively high, the generated energy is relatively high, and the requirement of the generated energy is met.
And 380, controlling the orientation and the rotating speed of the fan to be unchanged.
Specifically, if the current rotating speed of the fan is not less than the second preset threshold, the electric quantity generated by the fan according to the current rotating speed is represented to meet the requirement between the first preset threshold and the second preset threshold, so that the orientation and the rotating speed of the fan can be controlled to be unchanged.
According to the fan control method provided by the embodiment, when the current rotating speed of the fan is less than or equal to the first preset threshold and less than the second preset threshold, the rotating speed of the fan facing the direction can be controlled according to the wind speed and the wind direction in the preset time period, so that the rotating speed of the fan is large, the generated energy is large, and the requirement of the generated energy is met.
Example four
Fig. 4 is a flowchart of a fan control method according to a fourth embodiment of the present invention, and referring to fig. 4, the fan control method may be executed by a fan controller, and specifically includes the following steps:
the method comprises the steps of firstly, obtaining the current rotating speed, the current orientation and the longitude and latitude information of the fan.
Judging whether the current rotating speed of the fan is greater than a first preset threshold value or not; if yes, executing the step three; if not, step eight is executed.
The first preset threshold may be a highest threshold of the fan rotation speed.
And step three, uploading the current rotating speed, the current orientation and the longitude and latitude information of the fan to a cloud server.
Specifically, the cloud server can acquire weather information of the position of the fan according to the longitude and latitude information of the fan, and the weather information can include wind power information.
And step four, receiving weather information issued after the cloud server acquires the weather information according to the longitude and latitude information of the fan.
Judging whether the weather information indicates that super gust information exists at the current moment; if yes, executing step six; if not, step seven is executed.
And step six, controlling the fan to rotate to the leeward direction or the windward direction of the first preset inclination angle.
Specifically, if the weather information indicates that super gust information is currently available, the fan is controlled to rotate to the leeward direction or the windward direction at a first preset inclination angle, the first preset inclination angle is a smaller inclination angle, and when the fan rotates to the leeward direction or the windward direction at the first preset inclination angle, the rotating speed of the fan is smaller, so that damage to the fan caused by super gust can be prevented.
And step seven, controlling the fan to rotate to the windward direction of a second preset inclination angle.
Specifically, if the weather information indicates that no super gust information exists at the current moment, the fan is controlled to rotate to the windward direction of the second preset inclination angle, the first preset inclination angle is smaller than the second preset inclination angle, the second preset inclination angle is smaller than the current inclination angle of the fan, the rotating speed of the fan corresponding to the windward direction of the second preset inclination angle is smaller than or equal to a first preset threshold value, the fan is guaranteed to have enough generated energy, and the damage caused by the fact that the rotating speed of the fan is too high to exceed the highest rotating speed bearable to the fan is prevented.
Step eight, judging whether the current rotating speed of the fan is lower than a second preset threshold value or not; if yes, executing step nine; if not, go to step ten.
The second preset threshold may be a lowest threshold of the rotation speed of the fan, and when the current rotation speed of the fan is not greater than the first preset threshold, it is necessary to determine whether the current rotation speed of the fan is lower than the second preset threshold.
And step nine, acquiring the wind speed and the wind direction in the preset time period, and controlling the fan to rotate to the windward direction when the wind speed and the wind direction in the preset time period are unchanged.
Specifically, if the current rotating speed of the fan is lower than a second preset threshold value, that is, the current rotating speed of the fan is lower than the lowest threshold value of the rotating speed of the fan, the rotating speed is too low, and if the wind speed and the wind direction in a preset time period are unchanged, the fan is controlled to rotate to the windward direction, so that the rotating speed of the fan is increased, and the fan has a larger generated energy.
And step ten, controlling the orientation and the rotating speed of the fan to be unchanged.
Specifically, if the current rotating speed of the fan is not greater than the first preset threshold and not less than the second preset threshold, that is, the current rotating speed of the fan is between the highest threshold and the lowest threshold, the fan meets the requirement of the generated energy at the current rotating speed, and the orientation and the rotating speed of the fan can be controlled to be unchanged.
According to the fan control method provided by the embodiment, when the current rotating speed of the fan is greater than a first preset threshold value, the orientation and the rotating speed of the fan are controlled according to weather information, and when the current rotating speed of the fan is lower than a second preset threshold value, the orientation and the rotating speed of the fan are controlled according to the wind speed and the wind direction in a preset time period, so that the sufficient generated energy of the fan is ensured, and the fan is prevented from being damaged due to overhigh rotating speed or overhigh rotating speed of the fan caused by severe weather such as ultra-strong gust.
EXAMPLE five
Fig. 5 is a block diagram of a fan control device according to a fifth embodiment of the present invention, where the fan control device includes: a receiving module 410, an instruction generating module 420 and a control module 430; wherein the content of the first and second substances,
the receiving module 410 is configured to receive weather information sent by the cloud server when the current rotation speed of the fan is greater than a first preset threshold, where the weather information at least includes wind power information; the instruction generating module 420 is configured to generate a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction; the control module 430 is configured to control the fan to rotate to a leeward direction or a windward direction at a first preset inclination angle according to a first control instruction; or controlling the fan to rotate to the windward direction of a second preset inclination angle according to a second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; the first preset inclination angle is smaller than the second preset inclination angle.
On the basis of the foregoing embodiment, the instruction generating module 420 may include an instruction generating unit, where the instruction generating unit is configured to generate a first control instruction if the weather information indicates that there is an ultra-strong gust at the current time; or if the weather information indicates that the current moment does not have the super-strong gust, generating a second control instruction.
Preferably, the fan control device further comprises an acquisition module, wherein the acquisition module comprises an acquisition unit and a judgment unit, and the acquisition unit is used for acquiring the current rotating speed and the current orientation of the fan; the judging unit is used for judging whether the current rotating speed of the fan is larger than a first preset threshold value or not.
Preferably, the acquisition module is used for acquiring the longitude and latitude information of the fan and uploading the current rotating speed and the current orientation of the fan and the longitude and latitude information of the fan to the cloud server.
In one embodiment, the judging unit includes a judging subunit, a control subunit and an instruction generating subunit, where the judging subunit is configured to judge whether the current rotation speed of the fan is less than a second preset threshold value if the current rotation speed of the fan is less than or equal to a first preset threshold value; the first preset threshold is larger than the second preset threshold; the control subunit is used for controlling the orientation and the rotating speed of the fan to be unchanged if the current rotating speed of the fan is greater than or equal to a second preset threshold; the instruction generating subunit is configured to generate a third control instruction if the current rotational speed of the fan is less than a second preset threshold, and control the orientation and the rotational speed of the fan according to the third control instruction.
Preferably, the instruction generating subunit is configured to acquire a wind speed and a wind direction in a preset time period, where the preset time period is a time period from the first time to the current time; if the wind speed and the wind direction in the preset time period are changed, controlling the orientation and the rotating speed of the fan to be unchanged according to a third control instruction; and if the wind speed and the wind direction in the preset time period are unchanged, controlling the fan to rotate to the windward direction according to a third control instruction.
The fan control device provided by the embodiment has the corresponding beneficial effects of the fan control method.
EXAMPLE six
Fig. 6 is a block diagram of a wind power generation system according to a sixth embodiment of the present invention, where the wind power generation system includes a fan 10, a fan controller 20, and a cloud server 30, and the fan control device according to the previous embodiment is integrated in the fan controller 20, where the fan 10 is electrically connected to the fan controller 20, the fan controller 20 is communicatively connected to the cloud server 30, and the fan controller 20 may execute the fan control method according to any of the previous embodiments.
Fig. 7 is a schematic structural diagram of a fan according to a sixth embodiment of the present invention, referring to fig. 7, optionally, the wind power generation system further includes a tower 40 and a connecting flange 50, the fan 10 is connected to the tower 40 through the connecting flange 50, the fan 10 includes a steering engine 11, a blade 12, an energy storage battery 13 and a housing 14, the steering engine 11 and the blade 12 are connected through a connecting shaft, the energy storage battery 13 is electrically connected to the steering engine 11, and the steering engine 11 and the energy storage battery 13 are disposed in the housing 14.
Wherein, energy storage battery 13 is the power supply of steering wheel 11, and steering wheel 11 drives blade 12 and rotates to make the fan convert the mechanical energy that blade 12 rotated the production into the electric energy and realize the purpose of electricity generation.
The wind power generation system provided by the embodiment has the corresponding beneficial effects of the fan control method.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims (10)

1. A fan control method is characterized by comprising the following steps:
when the current rotating speed of the fan is larger than a first preset threshold value, receiving weather information sent by a cloud server, wherein the weather information at least comprises wind power information;
generating a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction;
controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to the first control instruction; alternatively, the first and second electrodes may be,
controlling the fan to rotate to the windward direction of a second preset inclination angle according to the second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; wherein the first preset inclination angle is smaller than the second preset inclination angle.
2. The method of claim 1, wherein generating a fan control command based on the weather information comprises:
if the weather information indicates that the current moment has the ultra-strong gust, generating a first control instruction; alternatively, the first and second electrodes may be,
and if the weather information indicates that no superstrong gust exists at the current moment, generating a second control instruction.
3. The method of claim 1, further comprising:
acquiring the current rotating speed and the current orientation of the fan;
and judging whether the current rotating speed of the fan is greater than the first preset threshold value.
4. The method of claim 3, further comprising:
acquiring longitude and latitude information of the fan;
and uploading the current rotating speed and current orientation of the fan and the longitude and latitude information of the fan to the cloud server.
5. The method according to claim 4, wherein the weather information is weather information of a position of the fan, and the cloud server determines the weather information of the position of the fan according to longitude and latitude information of the fan.
6. The method of claim 3,
if the current rotating speed of the fan is less than or equal to the first preset threshold, judging whether the current rotating speed of the fan is less than a second preset threshold; wherein the first preset threshold is greater than the second preset threshold;
if the current rotating speed of the fan is greater than or equal to a second preset threshold value, controlling the orientation and the rotating speed of the fan to be unchanged;
and if the current rotating speed of the fan is smaller than a second preset threshold value, generating a third control instruction, and controlling the orientation and the rotating speed of the fan according to the third control instruction.
7. The method of claim 6, wherein said controlling the orientation and speed of the wind turbine according to the third control command comprises:
acquiring the wind speed and the wind direction in a preset time period, wherein the preset time period is the time period from a first moment to a current moment;
if the wind speed and the wind direction in the preset time period are changed, controlling the orientation and the rotating speed of the fan to be unchanged according to the third control instruction;
and if the wind speed and the wind direction in the preset time period are unchanged, controlling the fan to rotate to the windward direction according to the third control instruction.
8. A fan control apparatus, comprising:
the receiving module is used for receiving weather information sent by the cloud server when the current rotating speed of the fan is larger than a first preset threshold value, and the weather information at least comprises wind power information;
the instruction generating module is used for generating a fan control instruction according to the weather information; the fan control instruction comprises a first control instruction or a second control instruction;
the control module is used for controlling the fan to rotate to the leeward direction or the windward direction of a first preset inclination angle according to the first control instruction; or controlling the fan to rotate to the windward direction of a second preset inclination angle according to the second control instruction, so that the rotating speed of the fan is smaller than or equal to a first preset threshold value; wherein the first preset inclination angle is smaller than the second preset inclination angle.
9. A wind power generation system, characterized in that the wind power generation system comprises a wind turbine, a wind turbine controller and a cloud server, the wind turbine control apparatus of claim 8 being integrated in the wind turbine controller; the fan is electrically connected with the fan controller, and the fan controller is in communication connection with the cloud server.
10. The wind power generation system of claim 9, further comprising a tower and a connecting flange, wherein the fan is connected with the tower through the connecting flange, the fan comprises a steering engine, a blade, an energy storage battery and a shell, the steering engine is connected with the blade through the connecting shaft, the energy storage battery is electrically connected with the steering engine, and the steering engine and the energy storage battery are arranged in the shell.
CN201911311391.8A 2019-12-18 2019-12-18 Fan control method and device and wind power generation system Pending CN111005840A (en)

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CN101363404A (en) * 2008-09-12 2009-02-11 三一电气有限责任公司 Typhoon defense operation control method for wind driven generator group, device and the group using the device
CN103807096A (en) * 2014-02-18 2014-05-21 江苏金风科技有限公司 Wind turbine and control method thereof
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