CN114645868A - Fan control method, computer device and storage medium - Google Patents

Fan control method, computer device and storage medium Download PDF

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Publication number
CN114645868A
CN114645868A CN202210332734.4A CN202210332734A CN114645868A CN 114645868 A CN114645868 A CN 114645868A CN 202210332734 A CN202210332734 A CN 202210332734A CN 114645868 A CN114645868 A CN 114645868A
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China
Prior art keywords
fan
stator
temperature
generator
running
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Granted
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CN202210332734.4A
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Chinese (zh)
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CN114645868B (en
Inventor
尹国军
周军长
罗显莅
铎林
赵军科
唐伟
范先忠
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Dongfang Electric Machinery Co Ltd DEC
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Dongfang Electric Machinery Co Ltd DEC
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Priority to CN202210332734.4A priority Critical patent/CN114645868B/en
Publication of CN114645868A publication Critical patent/CN114645868A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/008—Stop safety or alarm devices, e.g. stop-and-go control; Disposition of check-valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2270/00—Control
    • F05D2270/30—Control parameters, e.g. input parameters
    • F05D2270/303—Temperature
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Control Of Temperature (AREA)

Abstract

The invention provides a fan control method, computer equipment and a storage medium, and relates to the field of intelligent control. Obtaining stator temperature information of a generator acted by the fan unit; detecting whether the stator temperature information of the generator meets a preset temperature condition or not; if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run; and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan unit to operate. Therefore, the temperature information of the generator stator is detected, and the running fan which stops running and the standby fan which starts running are determined based on the detection result, so that the continuous running time of the fan is reduced, and the running life of the fan is effectively prolonged.

Description

Fan control method, computer device and storage medium
Technical Field
The invention relates to the field of intelligent control, in particular to a fan control method, computer equipment and a storage medium.
Background
In the working process of the generator, the temperature of the stator of the generator can gradually rise along with the extension of the working time, and the generator can cause irreversible damage to the stator of the generator when working in a state that the temperature of the stator is high for a long time, so that a fan for heat dissipation needs to be installed near the stator of the generator.
The fan is used as a power part of a ventilation cooling system, and due to long-term operation, severe field operation conditions, high fan vibration, high temperature and other reasons, the fan is easy to break down, the service life of the fan is influenced, and the stable operation of a fan unit is not favorable.
Disclosure of Invention
Based on the above research, the present invention provides a fan control method, a computer device, and a storage medium, so as to solve the above problems.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment of the present invention provides a fan control method, configured to control operation of a fan in a fan unit, where the fan unit includes an operating fan and a standby fan; the method comprises the following steps:
acquiring stator temperature information of a generator acted by a fan unit;
detecting whether the stator temperature information of the generator meets a preset temperature condition or not;
if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run;
and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan set to operate.
In an alternative embodiment, before obtaining stator temperature information of a generator on which the wind turbine assembly is acting, the method further includes:
responding to the selection of the operation mode, and determining the operation mode of the fan set;
determining an operating fan and a standby fan in the fan unit according to the operating mode;
and controlling the running fan in the fan set to run.
In an alternative embodiment, the operating mode includes an automatic round robin operating mode; according to the operational mode, determine operation fan and reserve fan in the fan unit, include:
if the operation mode of the fan unit is the automatic circulation operation mode, acquiring a first operation working condition of the generator and the heat dissipation capacity of a single fan in the fan unit;
determining a first heat generation amount of the generator according to preset first mapping data; the first mapping data comprises a first operation working condition of the generator and a heating value corresponding to the first operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the first heat generation amount and the heat dissipation amount of the single fan.
In an alternative embodiment, the operating modes include a fixed-round-robin operating mode; according to the operational mode, determine operation fan and reserve fan in the fan unit, include:
if the operation mode of the fan unit is the fixed round-robin operation mode, acquiring a second operation working condition of the generator and heat dissipation capacity of a single fan in the fan unit;
determining a second heating value of the generator according to preset second mapping data, wherein the second mapping data comprise a second operation working condition of the generator and the heating value corresponding to the second operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the second heating value and the heat dissipation capacity of the single fan.
In an alternative embodiment, the stator temperature information includes a stator temperature and a stator temperature rise; whether the stator temperature information of the detection generator accords with the preset temperature condition includes:
detecting whether the temperature of the stator is smaller than a preset temperature threshold and whether the temperature rise of the stator is smaller than a preset temperature rise threshold;
if the temperature of the stator is smaller than a preset temperature threshold and the temperature rise of the stator is smaller than a preset temperature rise threshold, judging that the temperature information of the stator of the generator meets a preset temperature condition;
and if the temperature of the stator is not less than the preset temperature threshold or the temperature rise of the stator is not less than the preset temperature threshold, judging that the temperature information of the stator of the generator does not accord with the preset temperature condition.
In an optional embodiment, determining the target fan from the operating fans includes:
obtaining the maximum value of the running time in the fan unit according to the running time of the running fan;
and determining the running fan corresponding to the maximum running time as the target fan.
In an optional embodiment, before obtaining stator temperature information of a generator acted by the wind turbine set, the method further includes:
acquiring running state information of a running fan in a fan set;
detecting whether an operating fan in the fan unit meets a preset state condition or not according to the operating state information;
determining the number of fans which do not accord with the preset state condition in the running fans, and controlling the running of standby fans in the fan set according to the number of the fans;
and controlling the running fan which is not in accordance with the preset state condition to stop running.
In an optional embodiment, the operation state information includes a motor current value and a wind barrel vibration value of the operation fan, and whether the operation fan in the fan unit meets a preset state condition is detected according to the operation state information, including:
detecting whether the current value of the motor is smaller than a preset current threshold value and detecting whether the vibration value of the air duct is smaller than a preset vibration threshold value;
when the current value of the motor is smaller than a current preset threshold value and the vibration value of the air duct is smaller than a vibration preset threshold value, judging that an operating fan in the fan unit meets a preset state condition;
and when the current value of the motor is not less than the preset current threshold or the vibration value of the air duct is not less than the preset vibration threshold, judging that the running fan in the fan unit is not in accordance with the preset state condition.
In a second aspect, an embodiment of the present invention provides a computer device, including a memory and a processor; the memory stores an application program, and the processor is used for running the application program in the memory to execute the operation in any one of the fan control methods.
In a third aspect, an embodiment of the present invention provides a storage medium, where the storage medium stores a plurality of instructions, and the instructions are suitable for being loaded by a processor to perform any of the steps in the fan control method.
According to the fan control method, the computer device and the storage medium provided by the embodiment of the invention, whether the stator temperature information of the generator meets the preset temperature condition or not is detected by obtaining the stator temperature information of the generator, if the stator temperature information of the generator meets the preset temperature condition, a target fan is determined from the running fans, the target fan is controlled to stop running, at least one spare fan in the fan unit is controlled to run, and if the stator temperature information does not meet the preset temperature condition, all spare fans in the fan unit are controlled to run. Therefore, the temperature information of the generator stator is detected, and the running fan which stops running and the standby fan which starts running are determined based on the detection result, so that the continuous running time of the fan is reduced, and the running life of the fan is effectively prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a fan control device according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of a fan control method according to an embodiment of the present disclosure;
fig. 3 is a schematic flow chart of fan operation mode selection according to an embodiment of the present disclosure;
fig. 4 is a schematic flow chart of determining a running state of a fan according to an embodiment of the present disclosure;
FIG. 5 is a schematic structural diagram of a fan control according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of an upper computer provided in the embodiment of the present application.
Icon: 10-equipment end; 20-an intelligent control end; 30-an upper computer; 301-a memory; 302-a processor; 303-an information interaction unit; 304-display unit.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically, electrically or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
If the prior art, the fan is used as a power component of a ventilation cooling system, and in the process of long-term operation, due to lack of monitoring management, the fan may continuously work in the states of abnormal motor current value, abnormal wind barrel vibration and abnormal fan stator temperature, so that the failure frequency of the fan is caused, and the service life of the fan is also reduced.
Based on the research, the invention provides a fan control method, computer equipment and a storage medium, wherein the fan control method, the computer equipment and the storage medium are used for monitoring the temperature information of the stator of the generator and providing a round-robin method for the running fan and the standby fan in the fan unit based on the detection result, so that the continuous running time of the fan is shortened, and the running life of the fan is effectively prolonged.
As shown in fig. 1, fig. 1 is a schematic structural diagram of an apparatus for controlling a fan unit, where fig. 1 includes an apparatus end 10, an intelligent control end 20, and an upper computer 30.
The device end 10 is in communication connection with the intelligent control end 20, and the intelligent control end 20 is in communication connection with the upper computer 30.
The equipment end 10 comprises a generator and a plurality of fans, wherein a plurality of fans are installed on the periphery of a stator of each generator, each fan is provided with an on-site sensor, and the on-site sensors are used for acquiring running state information of the fans. Meanwhile, the generator is provided with a temperature sensor and a power transmitter, the temperature sensor is used for acquiring stator temperature information of the generator, and the power transmitter is used for acquiring apparent power of the generator.
The intelligent Control terminal 20 includes a Programmable Logic Controller (PLC) and a Logic Control Unit (LCU), the PLC includes a Central Processing Unit (CPU), an I/O module and a communication module, the LCU is configured to obtain stator temperature information of the generator, apparent power of the generator and start/stop information of the generator, the communication module of the PLC is configured to collect operation state information of the wind turbine, stator temperature information of the generator, apparent power of the generator and start/stop information of the generator, the central processing Unit performs Logic operation on the above information and obtains an operation result, and issues a Control command based on the operation result, the Control command is output to the wind turbine Control loop by the I/O module, and controls operation and stop of the wind turbine.
The upper computer 30 comprises a memory 301, a processor 302, an information interaction unit 303 and a display unit 304, wherein the information interaction unit 303 is used for performing communication interaction with a PLC of the intelligent control terminal 20 to obtain stator temperature information of the generator, apparent power of the generator, running state information of the fan and start-stop information of the fan in real time, the processor 302 processes and converts the above information and then displays the information through the display unit 304, and meanwhile, the memory 301 stores the stator temperature information, apparent power of the generator, running state information of the fan and start-stop information of the fan, which are obtained in real time, so that historical data can be queried.
The device side 10, the intelligent control side 20 and the upper computer 30, wherein the communication interaction inside the device or among the devices is based on communication connection, and data is transmitted and received through a network.
In some embodiments, the network may be any type of wired or wireless network, or combination thereof. Merely by way of example, a Network may include a wired Network, a Wireless Network, a fiber optic Network, a telecommunications Network, an intranet, the internet, a Local Area Network (LAN), a Wide Area Network (WAN), a Wireless Local Area Network (WLAN), a Metropolitan Area Network (MAN), a Wide Area Network (WAN), a Public Switched Telephone Network (PSTN), a bluetooth Network, a ZigBee Network, a Near Field Communication (NFC) Network, or the like, or any combination thereof.
In a specific implementation scene, an intelligent control end 20 controls fans in an equipment end 10 to start to operate in sequence, a PLC in the intelligent control end 20 acquires running state information of the fans through a field sensor, judges whether the fans are abnormal in operation or not based on the running state information of the fans, alarms the fans abnormal in operation if the fans are abnormal in operation, determines the number of the running fans based on the running working condition of a generator and the heat dissipation capacity of a single running fan if the fans are abnormal in operation, controls the fans not required to run to stop running, takes the fans not required to run as a standby fan, and a communication module of the PLC acquires stator temperature information of the generator and controls the round robin of the running fans and the standby fan based on the stator temperature information; meanwhile, the upper computer 30 is in communication interaction with the intelligent control terminal 20, obtains stator temperature information of the generator, apparent power of the generator, running state information of the fan and start and stop information of the fan in real time, stores the information, can query historical data, and can issue an instruction based on the upper computer 30 to control running or stopping of the fan in the fan unit.
Based on the implementation architecture of fig. 1, the present embodiment provides a fan control method, which is executed by the apparatus shown in fig. 1, and the steps of the fan control method provided in the present embodiment are described in detail below, please refer to fig. 2, where the method for controlling a deflectometer provided in the present embodiment includes steps S10-S13.
Step S10: stator temperature information of the generator is obtained.
Obtaining stator temperature information includes obtaining a stator temperature.
The stator comprises a plurality of stator windings and an iron core, a temperature sensor is arranged at each of the stator windings and the iron core, and absolute association does not exist between the temperatures of the stator windings and the iron core, so that the temperatures of the stator windings and the iron core can be different, and therefore, the obtained stator temperature information comprises the temperatures of the stator windings and the iron core.
The stator temperature information can be acquired in a timing mode, the information acquisition frequency is adjusted according to different application scenes or working requirements, communication resources are saved by adopting the mode of acquiring the information in the timing mode, and meanwhile, computing resources are saved.
Optionally, the mode of acquiring the stator temperature information can also be real-time acquisition, the stator temperature information is acquired in real time, and the fan operation is controlled more accurately based on the temperature information acquired in real time.
Step S11: and detecting whether the stator temperature information of the generator meets a preset temperature condition or not.
The step of detecting the stator temperature information comprises the steps of obtaining the stator temperature information of the generator at a fixed time interval T and detecting the stator temperature information, or obtaining the stator temperature information of the generator in real time and detecting the stator temperature information at the fixed time interval T.
In an alternative embodiment, the stator temperature information of the generator is obtained in real time and is detected at a fixed time interval T.
Detecting the stator temperature comprises detecting an average value of the stator temperature within a fixed time interval T or detecting a maximum value of the stator temperature within the fixed time interval T;
every interval fixed time T detects stator temperature information and whether accords with the temperature and predetermines the condition, and every interval fixed time T detects stator temperature promptly and whether all accords with the temperature and predetermines the condition, and the temperature is predetermine the condition and is included stator temperature and predetermine the threshold value, and the temperature is predetermine the condition and can be set for according to construction safety standard or actual demand.
Step S12: and if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run.
When the temperature information of the stator accords with the preset temperature condition, the generator can normally work, and the running fan in the fan unit can ensure that the temperature of the stator of the generator is in a normal range. However, in order to avoid the reduction of the service life of the fan caused by the overlong operation time of the fan, when the stator temperature information meets the preset condition, the target fan needs to be determined from the operation fan, and the target fan is controlled to stop operating, so that the long-time operation of the fan is avoided.
Optionally, in the embodiment of the present application, a target fan in the operating fan may be determined by comparing the operating time of the operating fan or the temperatures of the stator winding and the iron core corresponding to the operating point, for example, the operating fan with the longest operating time or the lowest temperature of the stator winding or the iron core corresponding to the operating point may be selected as the target fan.
Because the stator comprises a plurality of stator windings and iron cores, the position of one stator winding and one iron core is called as a point position, and if the point position is provided with an operating fan, the point position is called as an operating point position.
In this application embodiment, the target fan shows the longer operation fan of operating time, in order to avoid the long-time operation of fan, after determining the target fan, can control target fan stall, and control target fan stops the back, in order to avoid the generator heat dissipation untimely, influence the performance, still need control the reserve fan in the fan unit and begin to operate.
The number of the standby fans which start to operate is controlled based on the stator temperature of the generator, and if the difference between the stator temperature of the generator and the preset stator temperature threshold is large, for example, the stator temperature of the generator is 90 ℃, the preset stator temperature threshold is 100 ℃, the standby fans of the same number as the target fans can be controlled to start to operate. For example, if only one running fan stops running, one spare fan is controlled to start running, and similarly, if two fans stop running, two spare fans are controlled to start running, and if the difference between the stator temperature of the generator and the preset stator temperature threshold is small, for example, the stator temperature of the generator is 100 ℃ and the preset stator temperature threshold is 100 ℃, the spare fans exceeding the target fan number can be controlled to start running, for example, if only one running fan stops running, the two spare fans are controlled to start running. The determination of the large difference and the small difference can be set according to actual requirements.
The method for selecting the standby fan comprises the steps that if the point with the maximum temperature of the stator winding and the iron core does not have the fan, the standby fan is started at the point, and if the point with the maximum temperature of the stator winding and the iron core has the fan, the standby fan with the nearest point is started.
Step S13: and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan set to operate.
When the detected temperature of the stator of the generator does not accord with the preset temperature condition, the heat dissipation capacity of the running fan in the fan unit is not enough to offset the heat productivity of the stator, and in order to quickly return the temperature of the stator to the temperature in the preset temperature condition, all the standby fans need to be controlled to run.
When the temperature of the stator of the generator meets the preset condition, the standby fan and the operating fan perform a round-robin operation, after a period of the round-robin operation, in order to reduce the difference of the operating time of the fans in the fan unit and to extend the operating life of the fans to a greater extent, the operating fan and the standby fan may also perform the round-robin operation at regular times, for example, the number of the fans in one fan unit is 6, three are the operating fans, three are the standby fans, the round-robin period is set to be one week, the 6 fans are numbered as 1#, 2#, 3#, 4#, 5# and 6#, the operating fans are 1#, 3# and 5# and the standby fans are 2#, 4# and 6# are used as the operating fans, and 1#, 3# and 5# are used as the standby fans after one week.
According to the fan control method provided by the embodiment of the invention, whether the stator temperature information of the generator meets the preset temperature condition is detected by acquiring the stator temperature information of the generator, if the stator temperature information of the generator meets the preset temperature condition, a target fan is determined from the running fans, the target fan is controlled to stop running, at least one standby fan in the fan unit is controlled to run, and if the stator temperature information of the generator does not meet the preset temperature condition, all the standby fans in the fan unit are controlled to run. Therefore, the temperature information of the generator stator is detected, and the running fan which stops running and the standby fan which starts running are determined based on the detection result, so that the continuous running time of the fan is reduced, and the running life of the fan is effectively prolonged.
In order to facilitate control of the operation of the fan and reduce the complexity of the control, the embodiment of the present application provides an operation mode of the fan, please refer to fig. 3, and before obtaining the stator temperature information and the operation state information of the fan operating in the fan set, the method further includes steps S20-S22.
Step S20: responding to the selection of the operation mode, and determining the operation mode of the fan set;
step S21: determining an operating fan and a standby fan in the fan unit according to the operating mode;
step S22: and controlling the running fan in the fan set to run.
The upper computer comprises a display unit, the display unit can provide a display interface interacting with a user, the user can select the operation mode of the fan based on a selection frame of the display interface and issue a selection instruction based on a selection result, the intelligent control end responds to the selection instruction of the operation mode to obtain the operation mode of the fan unit, and the operation of the fan is controlled based on the operation mode, wherein the operation mode comprises a manual operation mode and an intelligent operation mode.
In the manual operation mode, the upper computer can send an instruction, and the start and stop of the fan at the equipment end are controlled through communication interaction with the intelligent control end; the intelligent operation mode can issue an instruction through the intelligent control end so as to control the starting and stopping of the fan; the intelligent operation mode includes an automatic round-robin operation mode and a fixed round-robin operation mode.
In order to guarantee that the control of the fan unit can be realized under various conditions, three specific operation modes are provided in the embodiment.
Under the conditions that the intelligent control end has sufficient computing capacity and the power transmitter normally operates, an automatic round-robin operation mode is adopted; wherein, the power transmitter is the sensor that is used for acquireing the generator apparent power.
Under the condition that the intelligent control end has sufficient computing capacity and the power transmitter has a fault, a fixed round-robin operation mode is adopted;
and under the condition that the computing power of the intelligent control end is insufficient or the running state of the running fan is abnormal, a manual running mode is adopted.
Based on this, in this embodiment, according to the operation mode, the step of determining the operation fan and the standby fan in the fan set includes:
if the operation mode of the fan unit is the automatic circulation operation mode, acquiring a first operation working condition of the generator and the heat dissipation capacity of a single fan in the fan unit;
determining a first heat generation amount of the generator according to preset first mapping data; the first mapping data comprises a first operation working condition of the generator and a heating value corresponding to the first operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the first heat generation amount and the heat dissipation amount of the single fan.
Where apparent power is a quantity representing the capacity of the ac appliance, the square of the apparent power is equal to the square of the real power plus the square of the reactive power. The first operating condition includes the apparent power of the generator, the generator terminal voltage, the field current, and the power factor. The first mapping data is used for representing the first heat generation quantity of the generator corresponding to the generator under the first working condition. The first mapping data can be obtained through a mapping data table of the generator.
The heat dissipation capacity of the fans in the fan set is determined by the inlet water temperature of the cooling water of the air cooler, the flow rate of the cooling water of the air cooler and the air volume of the fans, so that the first heat generation capacity of the generator and the heat dissipation capacity of a single fan can be obtained through the first mapping data of the generator, the number of the fans required when the generator is subjected to heat dissipation can be determined, the running fans can be determined, and understandably, the number of the running fans subtracted from the total number of the fans in the fan set is the number of the standby fans.
Based on this, when the automatic circulation operation mode in the intelligent operation mode is selected in response to the selection of the operation mode, the PLC acquires the apparent power of the generator, the terminal voltage of the generator, the exciting current and the power factor, acquires the air cooler cooling water inlet temperature of a fan in the fan set, the air cooler cooling water flow and the air volume of the fan, determines a first heating value corresponding to the first operation condition according to the first mapping data, and determines the number of the operation fans according to the first heating value and the heat dissipation amount of the fan.
Optionally, to ensure the cooling effect, when the operating fans are selected, an interval selection mode is adopted, for example, taking 6 fans as an example, the 6 fans are sequentially arranged around the stator of the generator and are respectively numbered as 1#, 2#, 3#, 4#, 5# and 6#, if three fans are selected as the operating fans, three fans numbered as 1#, 3#, and 5# can be selected as the operating fans, or three fans numbered as 2#, 4#, and 6# can be selected as the operating fans, and the selected operating fans are controlled to operate, and fans not selected in the fan sets are used as standby fans for circulation.
According to the operation mode, the step of determining the operation fan and the standby fan in the fan set further comprises the following steps:
if the operation mode of the fan unit is the fixed round-robin operation mode, acquiring a second operation working condition of the generator and heat dissipation capacity of a single fan in the fan unit;
determining a second heating value of the generator according to preset second mapping data, wherein the second mapping data comprise a second operation working condition of the generator and the heating value corresponding to the second operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the second heating value and the heat dissipation capacity of the single fan.
When the operation mode is selected to be the fixed cycle operation mode in the intelligent operation mode, the apparent power of the generator is not required to be obtained, the rated power of the generator is taken as the working power, the rated power of the generator is equal to the rated voltage of the generator multiplied by the rated current of the generator, therefore, the rated power of the generator is a definite and unique value,
the second mapping data can be obtained through a mapping data table of the generator, and based on the second mapping data, when the intelligent circulation operation mode in the intelligent operation mode is selected in response to the selection of the operation mode, the second mapping data are based on the rated power of the generator and the rated power of the fan, the generator terminal voltage of the generator, the excitation current and the power factor. And determining a second heating value corresponding to a second operation working condition of the generator according to the second mapping data, and determining the number of the operation fans according to the second heating value and the heat dissipation capacity of the single fan.
Optionally, to ensure the cooling effect, when the operating fans are selected, an interval selection mode is adopted, for example, taking 6 fans as an example, the 6 fans are sequentially arranged around the stator of the generator and are respectively numbered as 1#, 2#, 3#, 4#, 5# and 6#, if three fans are selected as the operating fans, three fans numbered as 1#, 3#, and 5# can be selected as the operating fans, or three fans numbered as 2#, 4#, and 6# can be selected as the operating fans, and the selected operating fans are controlled to operate, and fans not selected in the fan sets are used as standby fans for circulation.
Before confirming the operation fan quantity in the fan unit and reserve fan quantity, need detect the stator temperature information of generator earlier, in order to realize the more accurate detection to generator stator temperature information, except obtaining the stator temperature, still need obtain the stator temperature rise, stator temperature information includes stator temperature and stator temperature rise promptly, detects whether the stator temperature information of generator accords with the temperature preset condition, includes following step:
detecting whether the temperature of the stator is smaller than a preset temperature threshold and whether the temperature rise of the stator is smaller than a preset temperature rise threshold;
if the temperature of the stator is smaller than a preset temperature threshold and the temperature rise of the stator is smaller than a preset temperature rise threshold, judging that the temperature information of the stator of the generator meets a preset temperature condition;
and if the temperature of the stator is not less than the preset temperature threshold or the temperature rise of the stator is not less than the preset temperature threshold, judging that the temperature information of the stator of the generator is not in accordance with the preset temperature condition.
And detecting the temperature and the temperature rise of the stator at a fixed time interval T so as to realize the round-robin control of the fan based on the detection result.
The temperature rise of the stator may be a difference between a maximum value and a minimum value in a set time interval T, or may be a temperature difference between two time end values in the set time interval, for example, the temperature rise of the stator is detected at a fixed time interval T, and the temperature rise may be a difference between a stator temperature value at a zero time and a stator temperature value at a time T, where the zero time is a start time representing the time interval T, and the time T is an end time representing the time interval T; the temperature rise may also be the difference between the minimum value of the stator temperature and the maximum value of the stator temperature within a fixed time interval T.
Detecting whether the temperature of the stator is smaller than a preset temperature threshold and whether the temperature rise of the stator is smaller than a preset temperature threshold, wherein the preset temperature conditions comprise a preset stator temperature threshold and a preset stator temperature rise threshold, and the preset temperature conditions can be set according to construction safety standards or actual requirements, for example, according to the construction safety standards, the temperature of the stator is not greater than 90 ℃, and the temperature rise of the stator is not greater than 5 ℃; or according to the actual requirement, the temperature of the stator is not more than 85 ℃, and the temperature rise of the stator is not more than 10 ℃. Meanwhile, a preset temperature condition can be set in a gradient manner, and the fan can be further managed in a refined manner, for example, when the temperature of the stator is greater than or equal to 100 ℃, a spare fan needs to be added, when the temperature of the stator is 90-100 ℃, based on a fan circulation method, when the spare fan is added, an operating fan is controlled to stop operating, and when the temperature of the stator is less than 90 ℃, the operating fan is controlled to stop operating.
In order to avoid long-time operation, after the stator temperature information that intelligent control end detected the generator accorded with the temperature preset condition, control the fan round robin in the fan unit, wherein include and determine the target fan from the operation fan, include the step:
obtaining the maximum value of the running time in the fan unit according to the running time of the running fan;
and determining the running fan corresponding to the maximum running time as the target fan.
The running time of the running fans is different because the fans are started in sequence based on the starting instructions when the fans are started, and the running time of the running fan which is started first is slightly longer after the running fan and the standby fan are confirmed, so that the fan with the longest running time is confirmed as a target fan when round robin is performed, at least one standby fan is controlled to start running, and the target fan is controlled to stop running.
In order to further improve the service life of the fan, before obtaining the stator temperature information of the generator acted by the fan set, the embodiment of the present application further provides a fan control method, please refer to fig. 4, including steps S30-S33:
step S30, acquiring running state information of running fans in the fan set;
step S31, detecting whether the running fan in the fan set meets the preset state condition according to the running state information;
step S32, determining the number of fans which do not accord with the preset state condition in the running fans, and controlling the standby fans in the fan set to run according to the number of fans;
and step S33, controlling the running fan which does not meet the preset state condition to stop running.
The method includes the steps that the running state of the fan is concerned, the fan is prevented from continuously running in an abnormal state, running state information of the fan needs to be acquired, and the running state information represents physical quantities of the running state of the fan, including the current value and the voltage value of a fan motor and the vibration value of a fan air cylinder. The preset-state condition is a threshold value set based on a physical quantity of the operation state, for example, the preset-state condition includes setting a current preset threshold value and a vibration preset threshold value, and the setting of the threshold value may be a single setting or may be a step setting.
Detecting whether the running state information accords with a preset state condition, controlling the fan to continue running if the running state information accords with the preset state condition, determining the number of fans which do not accord with the preset state condition in the running fan if the running state information does not accord with the preset state condition, controlling the standby fans in the fan set to run according to the number of the fans, namely, the number of the started standby fans is not less than the number of the fans which do not accord with the preset state condition, and simultaneously, eliminating a round-robin queue from the fans which do not accord with the preset state condition.
In an optional implementation manner, detecting whether an operating fan in a fan unit meets a preset state condition includes the following steps:
detecting whether the current value of the motor is smaller than a preset current threshold value and detecting whether the vibration value of the air duct is smaller than a preset vibration threshold value;
when the current value of the motor is smaller than a current preset threshold value and the vibration value of the air duct is smaller than a vibration preset threshold value, judging that an operating fan in the fan unit meets a preset state condition;
and when the current value of the motor is not less than the preset current threshold or the vibration value of the air duct is not less than the preset vibration threshold, judging that the running fan in the fan unit is not in accordance with the preset state condition.
The current value of the motor and the vibration value of the air duct have clear representativeness to the judgment of the state of the fan, for example, the current value of the motor and the vibration value of the air duct can respectively represent the internal state of the fan and the external state of the fan, and the running state of the fan can be determined to a great extent by judging the current value of the motor and the vibration value of the air duct.
In an optional embodiment, the detection of the running state of the running fans runs through the whole running process of the running fans, that is, the state of the fans is detected except when all the fans in the fan set are started to run, the running state detection of the running fans in the running process is also included after the number of the running fans is determined, meanwhile, different processing is carried out on the fans based on the detection results of the running states of the fans at different time points, when the fans are started to run, because the generator just starts to work and the temperature of the stator of the generator is not high, all the fans in the fan set are controlled to stop running, the fans with abnormal running state information are overhauled, in the process of fan circulation, the generator has been operated for a period of time, the temperature of the stator of the generator is high, and in order to ensure the normal running of the generator, all the fans in the fan set cannot be controlled to stop running, at the moment, the fan with abnormal running state information is controlled to stop running, the fan is put forward a round-robin queue, meanwhile, alarm information is sent to an upper computer through an intelligent control end, and the alarm information comprises position information of the fan and reasons of specific state information abnormity, for example, the current value of a fan motor is abnormal or the vibration value of a fan air cylinder is abnormal or the current value of the fan motor and the vibration value of the fan air cylinder are both abnormal.
In an optional embodiment, the control method for the wind turbine further comprises the following steps after the generator stops running:
the generator and the fan set receive a shutdown instruction, and the generator stops running; obtaining stator temperature information of the generator to obtain the stator temperature of the generator; judging whether the temperature of the stator is less than a preset shutdown temperature value or not; if the temperature part of the stator is not less than the preset shutdown temperature value, the fan is operated to continue to operate; and if the temperature part of the stator is less than the preset shutdown temperature value, the running fan stops running.
In the prior art, the start and stop of a fan and a generator are synchronous, but after the generator stops running, the temperature of a stator is still higher, if the generator stops radiating, the stator of the generator is damaged, therefore, the application provides a fan control method, when a stop instruction of the generator and the fan is obtained, the fan continues to work for a period of time, after the fan works for a period of time, whether the fan is controlled to stop is judged by obtaining the temperature of the stator of the generator after the stop, for example, the fan unit continues to run for 10 minutes after receiving the stop instruction, after ten minutes, the temperature of the stator of the generator after the stop is obtained, the threshold of the stop temperature is set to be 80 ℃, when the temperature of the stator of the generator after the stop is detected to be higher than 80 ℃, the running fan in the fan unit continues to run, when the temperature of the stator of the generator after the stop is detected to be lower than 80 ℃, and the running fan in the fan set automatically stops running.
In an alternative embodiment, as shown in fig. 5, a specific application scenario of the fan control is described.
In the working process of the generator, the temperature of the stator of the generator can gradually rise along with the extension of the working time, and the generator can cause irreversible damage to the stator of the generator when working in a state that the temperature of the stator is high for a long time, so that a fan for heat dissipation needs to be installed near the stator of the generator.
The fan is used as a power part of a ventilation cooling system, and due to long-term operation, severe field operation conditions, high fan vibration, high temperature and other reasons, the fan is easy to break down, which is unfavorable for stable operation of a fan unit, and once the fan breaks down, the overhaul workload is very large.
When generator low-load or stator temperature are lower, can put into partial fan operation, can effectively reduce fan continuous operation duration like this, effectively prolong fan operation life, this application provides a fan control method, and this scheme includes online monitoring and optimization operation two parts, and the online monitoring scheme carries out on-line monitoring to fan motor current and dryer vibration, carries out automatic judgement to fan motor operating condition in view of the above. The optimal operation scheme is to calculate the number of the operating fans and the spare fans by calculating the apparent power of the generator, and the spare fans are put into operation in a round-robin mode, so that the continuous operation time of the fans is reduced, the service life of the fans is prolonged, energy is saved, and noise is reduced. Meanwhile, the condition for judging the temperature of the stator of the generator is introduced and used as a precondition for the circulation operation, and the safe and stable operation of the unit is ensured while the intelligent operation of the fan is controlled.
The device for realizing the fan control mainly comprises an equipment end, an intelligent control end and an upper computer. Monitoring fan operation parameters including fan vibration and current, and monitoring apparent power of a generator and stator temperature through a field sensor, a temperature sensor and a power transmitter which are arranged at an equipment end;
the intelligent Control terminal 20 includes a Programmable Logic Controller (PLC) and a Logic Control Unit (Local Control Unit, LCU), where the PLC includes a Central Processing Unit (CPU), an I/O module, and a communication module, the LCU is configured to obtain stator temperature information of the generator, apparent power of the generator, and start/stop information of the generator, the communication module of the PLC is configured to collect operation state information of the wind turbine, stator temperature information of the generator, apparent power of the generator, and start/stop information of the generator, the central processing Unit performs Logic operation on the above information and obtains an operation result, and issues a Control instruction based on the operation result, and the Control instruction is output to a wind turbine Control loop by the I/O module to Control operation and stop of the wind turbine.
The upper computer realizes the functions of online monitoring, man-machine interaction, instruction issuing, data storage, query and the like through an upper computer software interface. By the upper computer software, operators can monitor the state of the fan and remotely operate the fan in a central control room; the upper computer software is communicated with the PLC, signals such as a generator stator temperature value, a fan air duct vibration value and a fan motor current value are read in real time, and a control instruction is issued. The upper computer software adopts a database to provide functions of data storage, historical data query and the like.
Intelligent operation method and steps
Step 1: the unit starts, and the LCU sends the start command signal to the generator, and the PLC control 1 ~ 6# fan of intelligent control end starts in proper order to judge whether vibration, current parameter are normal, if normal, control generator and fan and continue the operation, if unusual, control generator and fan and shut down the inspection.
Step 2: in response to the mode selection, either the automatic round-robin operation mode or the fixed round-robin operation mode may be selected.
Step 2.1: the method comprises the following steps of (1) judging stator temperature information, judging whether the temperature of a stator coil exceeds the limit or not or the temperature rise exceeds the limit, determining the number of running fans and standby fans according to a first running working condition of a generator and the heat dissipation capacity of the fans if the stator temperature information is normal, exiting the automatic round-robin running mode if the stator temperature information is abnormal, and switching to a manual running mode; the method comprises the following steps that the number of running fans and standby fans is determined according to a first running working condition of a generator and the heat dissipation capacity of the fans, the first heat generation capacity and the heat dissipation capacity of the fans are compared according to the first running working condition of the generator and the corresponding first heat generation capacity under the first running working condition, and the number N1 of the fans needing to be put into is calculated; 6-N1 fans are exited, and the exited fan is used as a spare fan. And (4) judging the temperature information of the stator at intervals of a certain time T1, starting 1 spare fan, quitting 1 running fan, and performing sequential round-robin running at intervals of T1. And when the fans operate in a round-robin mode, if the temperature of the stator is judged to be abnormal based on the temperature information of the stator, all the standby fans are started, the automatic round-robin operation mode is exited, and the manual operation mode is switched.
Step 2.2: the fixed round-robin operation mode is that firstly, the stator temperature information is judged, whether the temperature of the stator coil exceeds the limit or the temperature rise exceeds the limit is judged, if the stator temperature information is abnormal, the fixed round-robin operation mode is exited, and the manual operation mode is switched; if the stator temperature information is normal, obtaining a second heating value corresponding to the second operation condition of the generator according to the second operation condition of the generator, comparing the second heating value with the heat dissipation capacity of the fans, calculating the number of the fans needing to be input to be N, exiting 6-N fans, then judging the stator temperature information at regular intervals of T2, starting 1 spare fan, exiting 1 operation fan, and then sequentially operating at regular intervals of T1. And when the fans operate in a round-robin mode, if the temperature of the stator is judged to be abnormal based on the temperature information of the stator, all the standby fans are started, the fixed round-robin operation mode is exited, and the manual operation mode is switched.
And step 3: stopping the fan unit, and withdrawing all fans in sequence; and the generator receives a stop command sent by the LCU, and the generator stops.
And (3) fan fault logic: if the vibration value or the current value of a certain fan is abnormal, the fan is indicated to be in fault, all the standby fans are automatically started, and the manual working mode is switched.
The fan round-robin operation method comprises the following steps: in order to ensure the balance of the air supply of the axial flow fan on the circumference of the generator and the cooling effect of the generator, the condition that two adjacent fans are stopped simultaneously needs to be avoided when the axial flow fan operates in a circulating way. During the circulation operation, the standby fan needs to be started first and then stopped at the air conveying fan.
An embodiment of the present invention further provides an upper computer 30, as shown in fig. 6, which shows a schematic structural diagram of the upper computer 30 according to the embodiment of the present invention, specifically:
the upper computer 30 may include one or more computer-readable storage media of memory 301, one or more processing cores of processor 302, an information interaction unit 303, and so on. Those skilled in the art will appreciate that the configuration of the host computer 30 shown in FIG. 6 does not constitute a limitation of the host computer 30, and may include more or fewer components than shown, or some components in combination, or a different arrangement of components. Wherein:
the processor 302 is a control center of the upper computer 30, connects various parts of the entire upper computer 30 by using various interfaces and lines, and executes various functions and processing data of the upper computer 30 by running or executing software programs and/or modules stored in the memory 301 and calling data stored in the memory 301, thereby integrally monitoring the upper computer 30. Optionally, processor 302 may include one or more processing cores; optionally, the processor 302 may integrate an application processor and a modem processor, wherein the application processor mainly handles operating systems, user interfaces, application programs, and the like, and the modem processor mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 302.
The memory 301 may be used to store software programs and modules, and the processor 302 executes various functional applications and data processing by operating the software programs and modules stored in the memory 301. The memory 301 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function, and the like; the storage data area may store data created according to use of the upper computer 30, and the like. Further, the memory 301 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 301 may also include a memory controller to provide the processor 302 with access to the memory 301.
The upper computer 30 may further include an information interaction unit 303, and the information interaction unit 303 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control.
The upper computer 30 may further include a display unit 304, which is not described in detail herein. Specifically, in this embodiment, the processor 302 in the upper computer 30 loads the executable file corresponding to the process of one or more application programs into the memory 301 according to the following instructions, and the processor 302 runs the application programs stored in the memory 301, so as to implement various functions as follows:
acquiring stator temperature information of a generator;
detecting whether the stator temperature information of the generator meets a preset temperature condition or not;
if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run;
and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan set to operate.
It will be understood by those skilled in the art that all or part of the steps of the methods of the above embodiments may be performed by instructions, or by instructions controlling associated hardware, which may be stored in the computer-readable memory 301 and loaded and executed by the processor 302.
To this end, the embodiment of the present invention provides a storage medium, in which a plurality of instructions are stored, and the instructions can be loaded by the processor 302 to execute the steps in any one of the fan control methods provided by the embodiment of the present invention. For example, the instructions may perform the steps of:
acquiring stator temperature information of a generator;
detecting whether the stator temperature information of the generator meets a preset temperature condition or not;
if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run;
and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan set to operate.
The above operations can be implemented in the foregoing embodiments, and are not described in detail herein.
Wherein the storage medium may include: read Only Memory (ROM), Random Access Memory (RAM), magnetic or optical disks, and the like.
On the basis, an embodiment of the present invention provides an electronic device, which includes a processor, a storage medium and a bus, where the storage medium stores machine-readable instructions executable by the processor, and when the electronic device runs, the processor and the storage medium communicate with each other through the bus, and the processor executes the machine-readable instructions to perform the steps of any one of the fan control methods according to the foregoing embodiments when executed.
In some embodiments, the electronic device may also be a service request end, and in some embodiments, the electronic device may also be a service response end, which may be determined according to an actual application scenario.
To sum up, according to the fan control method, the computer device, and the storage medium provided in the embodiments of the present invention, it is detected whether the stator temperature information of the generator meets the preset temperature condition by obtaining the stator temperature information of the generator, and if the stator temperature information of the generator meets the preset temperature condition, a target fan is determined from the operating fans, the target fan is controlled to stop operating, at least one standby fan in the fan unit is controlled to operate, and if the temperature information does not meet the preset temperature condition, all the standby fans in the fan unit are controlled to operate. Therefore, the temperature information of the generator stator is detected, and the running fan which stops running and the standby fan which starts running are determined based on the detection result, so that the continuous running time of the fan is reduced, and the running life of the fan is effectively prolonged.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description of the embodiments is only for assisting understanding of the technical solutions and the core ideas thereof; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (10)

1. The fan control method is characterized by being used for controlling the operation of a fan in a fan unit, wherein the fan unit comprises an operating fan and a standby fan; the method comprises the following steps:
acquiring stator temperature information of a generator acted by the fan unit;
detecting whether the stator temperature information of the generator meets a preset temperature condition or not;
if the temperature meets the preset temperature condition, determining a target fan from the running fans, controlling the target fan to stop running, and controlling at least one standby fan in the fan unit to run;
and if the temperature is not in accordance with the preset temperature condition, controlling all standby fans in the fan unit to operate.
2. The wind turbine control method of claim 1, wherein prior to obtaining stator temperature information for a generator on which the wind turbine assembly is operating, the method further comprises:
responding to the selection of the operation mode, and determining the operation mode of the fan unit;
determining an operating fan and a standby fan in the fan unit according to an operating mode;
and controlling the running fan in the fan unit to run.
3. The fan control method of claim 2, wherein the operating mode comprises an automatic round-robin operating mode; according to the operation mode, determine operation fan and reserve fan in the fan unit, include:
if the operation mode of the fan unit is the automatic circulation operation mode, acquiring a first operation working condition of the generator and heat dissipation capacity of a single fan in the fan unit;
determining a first heat generation amount of the generator according to preset first mapping data; the first mapping data comprises a first operation working condition of the generator and a heating value corresponding to the first operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the first heat generation amount and the heat dissipation amount of the single fan.
4. The wind turbine control method of claim 2, wherein the operating mode comprises a fixed-duty cycle operating mode; according to the operation mode, determine operation fan and reserve fan in the fan unit, include:
if the operation mode of the fan unit is the fixed round-robin operation mode, acquiring a second operation working condition of the generator and heat dissipation capacity of a single fan in the fan unit;
determining a second heating value of the generator according to preset second mapping data, wherein the second mapping data comprise a second operation working condition of the generator and the heating value corresponding to the second operation working condition;
and determining an operating fan and a standby fan in the fan unit based on the second heating value and the heat dissipation capacity of the single fan.
5. The fan control method of claim 1, wherein the stator temperature information comprises a stator temperature and a stator temperature rise; detect whether the stator temperature information of generator accords with the temperature preset condition, include:
detecting whether the temperature of the stator is smaller than a preset temperature threshold value or not and whether the temperature rise of the stator is smaller than a preset temperature rise threshold value or not;
if the temperature of the stator is smaller than a preset temperature threshold and the temperature rise of the stator is smaller than a preset temperature rise threshold, judging that the temperature information of the stator of the generator meets a preset temperature condition;
and if the temperature of the stator is not less than the preset temperature threshold or the temperature rise of the stator is not less than the preset temperature threshold, judging that the temperature information of the stator of the generator does not accord with the preset temperature condition.
6. The method of claim 1, wherein the determining a target fan from the operating fans comprises:
obtaining the maximum value of the running time in the fan unit according to the running time of the running fan;
and setting the operation fan corresponding to the maximum value of the operation time as a target fan.
7. The wind turbine control method of claim 1, wherein prior to obtaining stator temperature information for a generator operated by the wind turbine assembly, the method further comprises:
acquiring running state information of a running fan in the fan unit;
detecting whether an operating fan in the fan unit meets a preset state condition or not according to the operating state information;
determining the number of fans which do not accord with preset state conditions in the running fans, and controlling the running of standby fans in the fan unit according to the number of the fans;
and controlling the running fan which is not in accordance with the preset state condition to stop running.
8. The fan control method according to claim 7, wherein the operation state information includes a motor current value and a fan drum vibration value of the operating fan, and detecting whether the operating fan in the fan unit meets a preset state condition according to the operation state information includes:
detecting whether the current value of the motor is smaller than a preset current threshold value and detecting whether the vibration value of the air duct is smaller than a preset vibration threshold value;
when the current value of the motor is smaller than a current preset threshold value and the vibration value of the air duct is smaller than a vibration preset threshold value, judging that an operating fan in the fan unit meets a preset state condition;
and when the current value of the motor is not less than a preset current threshold or the vibration value of the air duct is not less than a preset vibration threshold, judging that the running fan in the fan unit is not in accordance with a preset state condition.
9. A computer device comprising a memory and a processor; the memory stores an application program, and the processor is configured to execute the application program in the memory to perform the operations of the fan control method according to any one of claims 1 to 8.
10. A storage medium storing a plurality of instructions adapted to be loaded by a processor to perform the steps of the fan control method of any of claims 1 to 8.
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