WO2024187767A1 - 自适应控制风电机组机舱温度的方法、装置、设备、介质 - Google Patents

自适应控制风电机组机舱温度的方法、装置、设备、介质 Download PDF

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Publication number
WO2024187767A1
WO2024187767A1 PCT/CN2023/127945 CN2023127945W WO2024187767A1 WO 2024187767 A1 WO2024187767 A1 WO 2024187767A1 CN 2023127945 W CN2023127945 W CN 2023127945W WO 2024187767 A1 WO2024187767 A1 WO 2024187767A1
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WIPO (PCT)
Prior art keywords
threshold
active power
cabin temperature
value
cooling fan
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2023/127945
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English (en)
French (fr)
Inventor
任利业
王向东
张海华
张炳权
刘福才
刘茸茸
李超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crrc Shandong Wind Power Co Ltd
CRRC Wind Power Shandong Co Ltd
Original Assignee
Crrc Shandong Wind Power Co Ltd
CRRC Wind Power Shandong Co Ltd
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Publication date
Application filed by Crrc Shandong Wind Power Co Ltd, CRRC Wind Power Shandong Co Ltd filed Critical Crrc Shandong Wind Power Co Ltd
Priority to EP23927108.3A priority Critical patent/EP4513031A4/en
Publication of WO2024187767A1 publication Critical patent/WO2024187767A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/60—Cooling or heating of wind motors
    • 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
    • F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
    • F03D17/009—Monitoring or testing of wind motors, e.g. diagnostics characterised by the purpose
    • F03D17/018—Monitoring or testing of wind motors, e.g. diagnostics characterised by the purpose for monitoring temperature
    • 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
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/303—Temperature
    • F05B2270/3032—Temperature excessive temperatures, e.g. caused by overheating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2270/00—Control
    • F05B2270/30—Control parameters, e.g. input parameters
    • F05B2270/335—Output power or torque
    • 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

Definitions

  • the present invention relates to the technical field of wind power control, and in particular to a method, a device, a equipment and a medium for adaptively controlling the temperature of a cabin of a wind turbine generator set.
  • the cabin temperature of a wind turbine plays an important role in the stable operation of the wind turbine, and its level is affected by factors such as the external ambient temperature, the unit's power generation, air intake volume, air intake temperature, and air humidity.
  • the mainstream heat dissipation design currently used is the method of air intake from the bottom and air outlet from the top, that is, air intake is natural at the bottom of the tower and air is exhausted through the cooling fan at the top of the cabin.
  • Its control method is that when the cabin temperature is higher than the alarm threshold, the cooling fan is started to improve the ventilation environment in the cabin, accelerate the air circulation in the cabin, and exchange heat through air circulation convection; when the cabin temperature is lower than the stop threshold, the cooling fan is stopped.
  • the present invention provides a wind turbine generator system based on active power adaptive control The method of adjusting the cabin temperature by adjusting the cooling fan speed through the average active power, and then controlling the ventilation volume to adaptively control the cabin temperature. This can avoid frequent speed adjustment of the cooling fan and alleviate the problem of reducing the life of the cooling fan due to frequent speed adjustment.
  • the technical solution of the present invention provides a method for adaptively controlling the temperature of a wind turbine nacelle, comprising the following steps:
  • the speed setting value of the cooling fan is searched in the active power and speed setting value correspondence table according to the current active power of the wind turbine set, and the cooling fan is controlled to work according to the searched speed setting value;
  • the cooling fan is controlled to operate according to the first speed threshold, and at the same time, it is determined whether the active power change value of the wind turbine set within the first time threshold is less than the power change threshold;
  • the first speed threshold is updated to the active power and speed setting value correspondence table; the execution step: after the second time threshold, the current cabin temperature value is collected;
  • the cooling fan is controlled to stop working.
  • the alarm threshold for starting the fan changes with the change of active power, that is, when the active power is high, the alarm threshold is low, and the cabin cooling fan obtains the speed setting value according to the average active power of the first time threshold and starts Starting in advance can optimize and reduce the number of high-temperature shutdowns caused by delayed temperature changes.
  • step of determining whether the pre-stored active power and speed setting value correspondence table exists the following step is further included:
  • the step of calculating the average active power of the wind turbine generator set within the first time threshold includes:
  • the moving mean filtering algorithm is used to calculate the average active power of the wind turbine within the first time threshold.
  • the formula for calculating the alarm threshold is as follows:
  • Alarm threshold fixed alarm threshold - average active power ⁇ coefficient
  • the fixed alarm threshold is a fixed value set according to historical information
  • the coefficient is a ratio of the temperature change to the average active power in a set time period calculated according to historical data.
  • the step of collecting the current cabin temperature value includes:
  • the cooling fan is controlled to work according to the first speed threshold, and at the same time, it is determined whether the active power change value of the wind turbine set within the first time threshold is less than the power change threshold;
  • the first speed threshold is updated to the value of the active power change value.
  • Frequent speed regulation of the cooling fan can be avoided, thereby alleviating the problem of shortening the life of the cooling fan due to frequent speed regulation.
  • the method further includes:
  • the step of determining whether the speed setting value of the cooling fan is less than the rated speed further includes:
  • the wind turbine generator set When the speed setting value of the cooling fan is greater than or equal to the rated speed, the wind turbine generator set enters the power-limited operation mode and reduces the current active power setting value of the wind turbine generator set by the first power threshold, and executes the steps of: determining whether the cabin temperature is less than the stop threshold.
  • the first speed threshold is equal to the sum of the speed setting value and the first percentage of the rated speed; the power change threshold is equal to the second percentage of the active rated power; and the first power threshold is equal to the first percentage of the rated active power.
  • the technical solution of the present invention provides a device for adaptively controlling the temperature of a wind turbine cabin, comprising a corresponding relationship table creation module, a temperature acquisition module, a calculation module, a temperature judgment module, a fan control module, a speed judgment module, a power setting module, a power change monitoring module, and a relationship table update module;
  • a corresponding relationship table creation module is used to create a corresponding relationship table between active power and speed setting value
  • Temperature collection module used to collect cabin temperature values
  • a calculation module used to calculate the average active power of the wind turbine generator set within the first time threshold, and calculate the cabin temperature alarm threshold according to the calculated average active power
  • the temperature judgment module is used to judge whether the cabin temperature is higher than the alarm threshold; judge whether the current cabin temperature value is greater than the cabin temperature value at the previous moment;
  • the fan control module is used to search the speed setting value of the cooling fan in the table of corresponding relationship between active power and speed setting value according to the current active power of the wind turbine when the cabin temperature is higher than the alarm threshold, and control the cooling fan to work according to the found speed setting value; when the current cabin temperature value is greater than the cabin temperature value at the previous moment and the speed setting value of the cooling fan is less than the rated speed, control the cooling fan to work according to the first speed threshold; judge that the current cabin temperature value is less than or equal to the cabin temperature value collected at the previous moment, and when the cabin temperature is less than the stop threshold, control the cooling fan to stop working;
  • the speed judgment module is used to judge whether the speed setting value of the cooling fan is less than the rated speed when the current cabin temperature value is greater than the cabin temperature value at the previous moment;
  • a power change monitoring module which is used to determine whether the active power change value of the wind turbine set within the first time threshold is less than the power change threshold after the fan control module controls the cooling fan to work according to the first speed threshold;
  • a power setting module used for reducing the current active power setting value of the wind turbine set by a first power threshold value when the speed setting value of the cooling fan is greater than or equal to the rated speed;
  • the relationship table updating module is used to update the first speed threshold to the corresponding relationship table between active power and speed setting value when the active power change value is less than the power change threshold.
  • the technical solution of the present invention further provides an electronic device, the electronic device comprising at least one processor and a memory in communication with the at least one processor; the memory stores computer program instructions executable by the at least one processor, the computer program instructions being executed by the at least one processor Execution, so that the at least one processor can execute the method for adaptively controlling the temperature of the nacelle of a wind turbine generator set as described in the first aspect.
  • the technical solution of the present invention further provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions enable the computer to execute the method for adaptively controlling the cabin temperature of a wind turbine set as described in the first aspect.
  • the alarm threshold for starting the fan changes with the change of active power, that is, when the active power is high, the alarm threshold is low.
  • the cabin cooling fan is checked according to the average active power within the set time, obtains the speed setting value and starts in advance. This can optimize and reduce the number of high-temperature shutdowns caused by temperature lag changes of the unit.
  • the fan speed can be adjusted adaptively, and the current cooling fan speed value can be automatically saved in the active power-speed setting value table.
  • the invention has a reliable design principle, a simple structure and a very broad application prospect.
  • FIG1 is a schematic flow chart of a method according to an embodiment of the present invention.
  • FIG. 2 is a schematic block diagram of an apparatus according to an embodiment of the present invention.
  • the present invention provides a method for adaptively controlling the temperature of a wind turbine cabin based on active power, which adjusts the speed of the cooling fan by the average active power, and then controls the ventilation volume to adaptively control the temperature of the cabin.
  • an embodiment of the present invention provides a method for adaptively controlling the temperature of a wind turbine cabin, comprising the following steps:
  • Step 1 Collect cabin temperature values
  • Step 2 Calculate the average active power of the wind turbine generator set within the first time threshold, and calculate the cabin temperature alarm threshold according to the calculated average active power;
  • Step 3 When it is determined that the cabin temperature is higher than the alarm threshold, the speed setting value of the cooling fan is searched in the active power and speed setting value correspondence table according to the current active power of the wind turbine set, and the cooling fan is controlled to work according to the searched speed setting value;
  • Step 4 After the second time threshold, collect the current cabin temperature value
  • Step 5 When it is determined that the current cabin temperature value is greater than the cabin temperature value at the previous moment and the speed setting value of the cooling fan is less than the rated speed, the cooling fan is controlled to operate according to the first speed threshold, and at the same time, it is determined whether the active power change value of the wind turbine set within the first time threshold is less than the power change threshold;
  • Step 6 When the active power change value is less than the power change threshold, update the first speed threshold to the active power change value. Power and speed setting value correspondence table; execute step 4;
  • Step 5 Determine whether the current cabin temperature value is less than or equal to the cabin temperature value collected at the previous moment, and when the cabin temperature is less than the stop threshold, control the cooling fan to stop working.
  • the alarm threshold for starting the fan changes with the change of active power, that is, when the active power is high, the alarm threshold is low, and the cabin cooling fan obtains the speed setting value according to the average active power of the first time threshold and starts in advance, which can optimize and reduce the number of high-temperature shutdowns caused by temperature lag changes. Frequent speed regulation of the cooling fan can be avoided, and the problem of reduced cooling fan life caused by frequent speed regulation can be alleviated.
  • the first speed threshold is equal to the sum of the speed setting value and the first percentage of the rated speed;
  • the power change threshold is equal to the second percentage of the active rated power;
  • the first power threshold is equal to the first percentage of the rated active power.
  • the embodiment of the present invention further provides a method for adaptively controlling the temperature of a wind turbine cabin, comprising the following steps:
  • step S3 If yes, go to step S3, otherwise go to step S2;
  • Alarm threshold fixed alarm threshold - average active power ⁇ coefficient
  • the fixed alarm threshold is a fixed value set according to historical information, and here the first time threshold is set to 10 minutes; based on a large amount of historical statistical data, the relationship between the average active power and the temperature change is studied, and then the ratio of the temperature change in the set time period to the average active power is calculated, and a corresponding relationship table between the average active power and the ratio is generated, and then the corresponding ratio, i.e., the coefficient, is found by looking up the table according to the current average active power;
  • step S9 If yes, go to step S9, otherwise go to step S14;
  • step S13 If yes, go to step S13, otherwise go to step S10;
  • step S11 Determine whether the active power change value of the wind turbine generator set within the first time threshold is less than the power change threshold; if so, execute step S12, otherwise execute step S7;
  • the first speed threshold is equal to the sum of the speed setting value and the first percentage of the rated speed; here, the first speed threshold is the rated speed increased by 10% based on the current speed setting value of the cooling fan.
  • the power change threshold is equal to the second percentage of the active rated power, that is, the power change threshold is equal to 2% of the active rated power; the first power threshold is equal to 10% of the rated active power.
  • the embodiment of the present invention further provides a method for adaptively controlling the temperature of a wind turbine cabin, comprising the following steps:
  • the 10-minute average active power is calculated by the moving average filtering method;
  • the fixed alarm threshold is a constant, which is determined by the minimum survival temperature of the cabin's major components and electrical components. That is, the cabin temperature alarm threshold is dynamically calculated based on the unit's active power value;
  • SS3 Determine whether the cabin temperature is higher than the alarm threshold; when the cabin temperature is higher than the alarm threshold, find the speed setting value of the cooling fan in the active power-speed setting value table according to the active power of the cabin temperature, and start the cooling fan to cool down;
  • SS4 Continue to measure the unit's cabin temperature after a delay of 5 minutes; when the cabin temperature continues to rise and the speed of the cooling fan is below the rated speed, increase the current cooling fan speed setting value by 10% of the rated speed, and continue to determine whether the unit's 10-minute active power change is less than 2% of the active power. If so, update the current speed to the active power-speed setting table; when the cabin temperature continues to rise and the cooling fan speed reaches the rated value, the unit enters the power-limited operation mode, and reduces the unit's current active power setting value by 10% of the rated active power; otherwise, enter SS5;
  • SS5 Determine whether the cabin temperature is lower than the stop threshold; when the cabin temperature is lower than the stop threshold, the cooling fan stops running; otherwise, enter SS3.
  • an embodiment of the present invention provides a device for adaptively controlling the temperature of a wind turbine nacelle, comprising a corresponding relationship table creation module, a temperature acquisition module, a calculation module, a temperature judgment module, a fan control module, a speed judgment module, a power setting module, a power change monitoring module, and a relationship table update module;
  • a corresponding relationship table creation module is used to create a corresponding relationship table between active power and speed setting value
  • Temperature collection module used to collect cabin temperature values
  • a calculation module used to calculate the average active power of the wind turbine generator set within the first time threshold, and calculate the cabin temperature alarm threshold according to the calculated average active power
  • the temperature judgment module is used to judge whether the cabin temperature is higher than the alarm threshold; judge whether the current cabin temperature value is greater than the cabin temperature value at the previous moment;
  • the fan control module is used to search the speed setting value of the cooling fan in the table of corresponding relationship between active power and speed setting value according to the current active power of the wind turbine when the cabin temperature is higher than the alarm threshold, and control the cooling fan to work according to the found speed setting value; when the current cabin temperature value is greater than the cabin temperature value at the previous moment and the speed setting value of the cooling fan is less than the rated speed, control the cooling fan to work according to the first speed threshold; judge that the current cabin temperature value is less than or equal to the cabin temperature value collected at the previous moment, and when the cabin temperature is less than the stop threshold, control the cooling fan to stop working;
  • the speed judgment module is used to judge whether the speed setting value of the cooling fan is less than the rated speed when the current cabin temperature value is greater than the cabin temperature value at the previous moment;
  • a power change monitoring module which is used to determine whether the active power change value of the wind turbine set within the first time threshold is less than the power change threshold after the fan control module controls the cooling fan to work according to the first speed threshold;
  • the power setting module is used to set the fan speed when the speed setting value of the cooling fan is greater than or equal to the rated speed.
  • the current active power setting value of the motor group is reduced by a first power threshold;
  • the relationship table updating module is used to update the first speed threshold to the corresponding relationship table between active power and speed setting value when the active power change value is less than the power change threshold.
  • An embodiment of the present invention further provides an electronic device, the electronic device comprising: a processor, a communication interface, a memory and a bus, wherein the processor, the communication interface and the memory communicate with each other through the bus.
  • the bus can be used for information transmission between the electronic device and the sensor.
  • the processor can call the logic instructions in the memory to execute the following method:
  • the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in a computer-readable storage medium when sold or used as an independent product.
  • the technical solution of the present invention in essence, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product.
  • the computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention.
  • the aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, and other media that can store program codes.
  • the current speed is updated to the active power-speed setting table; when the cabin temperature continues to rise and the cooling fan speed reaches the rated value, the unit enters the power-limited operation mode, and the current active power setting value of the unit is reduced by 10% of the rated active power; otherwise, enter SS5; SS5: determine whether the cabin temperature is lower than the stop threshold; when the cabin temperature is lower than the stop threshold, the cooling fan stops running; otherwise, enter SS3.

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Wind Motors (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

本发明属于风电控制技术领域，具体提供自适应控制风电机组机舱温度的方法、装置、设备、介质，所述方法采集机舱温度数值，计算第一时间阈值内风电机组的平均有功功率；根据计算出的平均有功功率计算机舱温度告警阈值；机舱温度高于告警阈值时，在对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；当机舱温度继续上升时，控制散热风扇按照第一速度阈值工作，此时当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中；当机舱温度小于停止阈值时，控制散热风扇停止工作。可以避免散热风扇的频繁调速，缓解频繁调速导致散热风扇寿命降低的问题。

Description

自适应控制风电机组机舱温度的方法、装置、设备、介质
本发明要求于2023年3月15日提交中国专利局、申请号为202310243747.9、发明名称为“自适应控制风电机组机舱温度的方法、装置、设备、介质”的中国专利申请的优先权，其全部内容通过引用结合在本发明中。
技术领域
本发明涉及风电控制技术领域，具体涉及自适应控制风电机组机舱温度的方法、装置、设备、介质。
背景技术
风电机组机舱温度对风机的稳定运行起着重要作用，其高低受到外部环境温度、机组发电功率、进风量、进风温度、空气湿度等因素的影响。
目前采用的主流散热设计为下进风上出风的方式，即塔筒底部自然进风，机舱顶部通过散热风扇排风。其控制方法为机舱温度高于告警阈值时，启动散热风扇改善机舱内的通风环境，加速机舱内空气循环，通过空气循环对流交换热量；当机舱温度低于停止阈值时，停止散热风扇。
近年来伴随着夏季高温极端天气的出现，风机外部环境温度越来越高，出现机舱温度高停机的现象越来越多，造成了机组发电量损失，同时降低了机组的可利用率。此外机舱温度高超出零部件生存温度时，对零部件有不可逆损害，降低了零部件的使用寿命，也增加了机舱发生火灾的概率。
发明内容
针对上述存在的问题，本发明提供一种基于有功功率自适应控制风电机组机 舱温度的方法，通过平均有功功率调节散热风扇速度，进而控制通风量自适应控制机舱温度。可以避免散热风扇的频繁调速，缓解频繁调速导致散热风扇寿命降低的问题。
第一方面，本发明技术方案提供一种自适应控制风电机组机舱温度的方法，包括如下步骤：
判断预存储的有功功率与速度设定值对应关系表是否存在；
当有功功率与速度设定值对应关系表存在时，采集机舱温度数值；
计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；
判断机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；
第二时间阈值后，采集当前机舱温度数值；
判断当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作，同时判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中；执行步骤：第二时间阈值后，采集当前机舱温度数值；
判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作。
启动风扇的告警阈值随着有功功率的变化而变化，即当有功功率高时，告警阈值低，机舱散热风扇根据第一时间阈值的平均有功功率查表获取速度设定值并 提前启动，这样可以优化减少机组因温度滞后变化导致的高温停机的次数。
作为本发明技术方案的进一步限定，判断预存储的有功功率与速度设定值对应关系表是否存在的步骤之后还包括：
当有功功率与速度设定值对应关系表不存在时，创建有功功率与速度设定值对应关系表。
作为本发明技术方案的进一步限定，计算第一时间阈值内风电机组的平均有功功率的步骤包括：
采用移动均值滤波算法计算风电机组在第一时间阈值内的平均有功功率。
作为本发明技术方案的进一步限定，根据计算出的平均有功功率计算机舱温度告警阈值的步骤中，计算告警阈值的公式如下：
告警阈值＝固定告警阈值-平均有功功率×系数；
其中，固定告警阈值是根据历史信息设定的固定值，系数是根据历史数据计算的设定时间段的温度变化与平均有功功率的比值。
作为本发明技术方案的进一步限定，第二时间阈值后，采集当前机舱温度数值的步骤之后包括：
判断当前机舱温度数值是否大于前一时刻的机舱温度数值；
当前机舱温度数值大于前一时刻的机舱温度数值时，判断散热风扇的速度设定值是否小于额定转速；
散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作同时，判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与 速度设定值对应关系表中；执行步骤：第二时间阈值后，采集当前机舱温度数值；
当有功功率变化值大于或等于功率变化阈值时，执行步骤：第二时间阈值后，采集当前机舱温度数值。
可以避免散热风扇的频繁调速，缓解频繁调速导致散热风扇寿命降低的问题。
作为本发明技术方案的进一步限定，判断当前机舱温度数值是否大于前一时刻的机舱温度数值的步骤之后还包括：
当前机舱温度数值小于或等于前一时刻采集的机舱温度数值时，判断机舱温度是否小于停止阈值；
若是，控制散热风扇停止工作；
若否，执行步骤：第二时间阈值后，采集当前机舱温度数值。
作为本发明技术方案的进一步限定，判断散热风扇的速度设定值是否小于额定转速的步骤之后还包括：
散热风扇的速度设定值大于或等于额定转速时，风电机组进入限功率运行模式将风电机组当前有功功率设定值减小第一功率阈值，执行步骤：判断机舱温度是否小于停止阈值。
其中，第一速度阈值等于速度设定值与第一百分比的额定速度的和；功率变化阈值等于有功额定功率的第二百分比；第一功率阈值等于第一百分比的额定有功功率。
第二方面，本发明技术方案提供一种自适应控制风电机组机舱温度的装置，包括对应关系表创建模块、温度采集模块、计算模块、温度判断模块、风扇控制模块、速度判断模块、功率设定模块、功率变化监测模块、关系表更新模块；
对应关系表创建模块，用于创建有功功率与速度设定值对应关系表；
温度采集模块，用于采集机舱温度数值；
计算模块，用于计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；
温度判断模块，用于判断机舱温度是否高于告警阈值；判断当前机舱温度数值大于前一时刻的机舱温度数值；
风扇控制模块，用于当机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作；判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作；
速度判断模块，用于当前机舱温度数值大于前一时刻的机舱温度数值时，判断散热风扇的速度设定值是否小于额定转速；
功率变化监测模块，用于风扇控制模块控制散热风扇按照第一速度阈值工作后，判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
功率设定模块，用于当散热风扇的速度设定值大于或等于额定转速时，将风电机组当前有功功率设定值减小第一功率阈值；
关系表更新模块，用于当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中。
第三方面，本发明技术方案还提供一种电子设备，所述电子设备包括至少一个处理器以及与所述至少一个处理器通信连接的存储器；存储器存储有可被至少一个处理器执行的计算机程序指令，所述计算机程序指令被所述至少一个处理器 执行，以使所述至少一个处理器能够执行如第一方面所述的自适应控制风电机组机舱温度的方法。
第四方面，本发明技术方案还提供一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令使所述计算机执行如第一方面所述的自适应控制风电机组机舱温度的方法。
从以上技术方案可以看出，本发明具有以下优点：
1、可以避免散热风扇的频繁调速，缓解频繁调速导致散热风扇寿命降低的问题。
2、启动风扇的告警阈值随着有功功率的变化而变化，即当有功功率高时，告警阈值低，机舱散热风扇根据设定时间内的平均有功功率查，获取速度设定值并提前启动，这样可以优化减少机组因温度滞后变化导致的高温停机的次数。
3、可以自适应调节风扇的速度，并把当前散热风扇速度值自动保存到有功功率-速度设定值表中。
此外，本发明设计原理可靠，结构简单，具有非常广泛的应用前景。
由此可见，本发明与现有技术相比，具有突出的实质性特点和显著地进步，其实施的有益效果也是显而易见的。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，对于本领域普通技术人员而言，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一个实施例的方法的示意性流程图。
图2是本发明一个实施例的装置的示意性框图。
具体实施方式
本发明提供一种基于有功功率自适应控制风电机组机舱温度的方法，通过平均有功功率调节散热风扇速度，进而控制通风量自适应控制机舱温度。为了使本技术领域的人员更好地理解本发明中的技术方案，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都应当属于本发明保护的范围。
参考附图1,本发明实施例提供一种自适应控制风电机组机舱温度的方法，包括如下步骤：
步骤1:采集机舱温度数值；
步骤2:计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；
步骤3:判断机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；
步骤4:第二时间阈值后，采集当前机舱温度数值；
步骤5:判断当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作，同时判断风电机组在第-时间阈值内的有功功率变化值是否小于功率变化阈值；
步骤6:当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功 功率与速度设定值对应关系表中；执行步骤4；
步骤5:判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作。
启动风扇的告警阈值随着有功功率的变化而变化，即当有功功率高时，告警阈值低，机舱散热风扇根据第一时间阈值的平均有功功率查表获取速度设定值并提前启动，这样可以优化减少机组因温度滞后变化导致的高温停机的次数。可以避免散热风扇的频繁调速，缓解频繁调速导致散热风扇寿命降低的问题。其中，第一速度阈值等于速度设定值与第一百分比的额定速度的和；功率变化阈值等于有功额定功率的第二百分比；第一功率阈值等于第一百分比的额定有功功率。
本发明实施例还提供一种自适应控制风电机组机舱温度的方法，包括如下步骤：
S1:判断有功功率与速度设定值对应关系表是否存在；
若是，执行步骤S3,否则执行步骤S2；
S2:创建有功功率与速度设定值对应关系表；执行下一步；
S3:采集机舱温度数值；执行下一步；
S4:计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；执行下一步；其中，计算告警阈值的公式如下：
告警阈值＝固定告警阈值-平均有功功率×系数；固定告警阈值是根据历史信息设定的固定值，在这里第一时间阈值设置为10分钟；基于大量历史统计数据，研究平均有功功率与温度的变化之间的关系，然后计算设定时间段的温度变化与平均有功功率的比值，生成平均有功功率与比值的对应关系表，然后根据当前平均有功功率查表找到对应的比值即系数；
S5:判断机舱温度是否高于告警阈值；若是，执行步骤S6,若否，执行步骤S16；
S6:根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；执行下一步；
S7:第二时间阈值后，采集当前机舱温度数值；执行下一步；在这里，第二时间阈值为5分钟；
S8:判断当前机舱温度数值是否大于前一时刻的机舱温度数值：
若是，执行步骤S9,否则执行步骤S14；
S9:判断散热风扇的速度设定值是否小于额定转速；
若是，执行步骤S13,否则，执行步骤S10；
S10:控制散热风扇按照第一速度阈值工作；执行下一步；
S11:判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；若是，执行步骤S12,否则执行步骤S7；
S12:将第一速度阈值更新到有功功率与速度设定值对应关系表中；执行步骤S7；
S13:风电机组进入限功率运行模式，将风电机组当前有功功率设定值减小第一功率阈值；执行下一步；
S14:判断机舱温度是否小于停止阈值；若是，执行步骤S15,否则，执行步骤S7；
S15:控制散热风扇停止工作；执行下一步；
S16:结束。
其中，第一速度阈值等于速度设定值与第一百分比的额定速度的和；在这里，第一速度阈值是在当前散热风扇的速度设定值的基础上增加10％的额定速度。功率变化阈值等于有功额定功率的第二百分比，也就是功率变化阈值等于有功额定功率的2％；第一功率阈值等于10％的额定有功功率。
本发明实施例还提供一种自适应控制风电机组机舱温度的方法，包括如下步骤：
SS1、创建有功功率—速度设定值表，表中速度设定值可以动态更新保存；
SS2:采集机舱温度数值，由移动均值滤波算法计算其10分钟平均有功功率；由有功功率计算机舱温度告警阈值(注：当机舱温度高于告警阈值时，启动机舱散热风扇),其公式为：告警阈值＝固定告警阈值-10分钟平均有功功率×系数。10分钟平均有功功率通过移动均值滤波方法计算；固定告警阈值是常数，由机舱大部件、电气元件的最小生存温度确定。即机舱温度告警阈值是根据机组有功功率值动态计算而来；
SS3:判断机舱温度是否高于告警阈值；当机舱温度高于告警阈值时，根据机舱温度的有功功率在有功功率-速度设定值表中查找散热风扇的速度设定值，同时启动散热风扇降温；
SS4:延时5min后继续测量机组的机舱温度；当机舱温度继续升高且散热风扇的转速在额定转速以下时，则将当前散热风扇的速度设定值增加10％的额定速度，同时继续判断机组10分钟有功功率变化是否小于2％的有功功率，若是，则将当前转速更新到有功功率-速度设定表中；当机舱温度继续升高且散热风扇转速到达额定值时，机组进入限功率运行模式，将机组当前有功功率设定值减小10％的额定有功功率；反之，进入SS5；
SS5:判断机舱温度是否低于停止阈值；当机舱温度低于停止阈值时，散热风扇停止运行；反之，则进入SS3。
如图2所示，本发明实施例提供一种自适应控制风电机组机舱温度的装置，包括对应关系表创建模块、温度采集模块、计算模块、温度判断模块、风扇控制模块、速度判断模块、功率设定模块、功率变化监测模块、关系表更新模块；
对应关系表创建模块，用于创建有功功率与速度设定值对应关系表；
温度采集模块，用于采集机舱温度数值；
计算模块，用于计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；
温度判断模块，用于判断机舱温度是否高于告警阈值；判断当前机舱温度数值大于前一时刻的机舱温度数值；
风扇控制模块，用于当机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作；判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作；
速度判断模块，用于当前机舱温度数值大于前一时刻的机舱温度数值时，判断散热风扇的速度设定值是否小于额定转速；
功率变化监测模块，用于风扇控制模块控制散热风扇按照第一速度阈值工作后，判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
功率设定模块，用于当散热风扇的速度设定值大于或等于额定转速时，将风 电机组当前有功功率设定值减小第一功率阈值；
关系表更新模块，用于当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中。
本发明实施例还提供一种电子设备，所述电子设备包括：处理器、通信接口、存储器和总线，其中，处理器，通信接口，存储器通过总线完成相互间的通信。总线可以用于电子设备与传感器之间的信息传输。处理器可以调用存储器中的逻辑指令，以执行如下方法：
S1:判断有功功率与速度设定值对应关系表是否存在，若是，执行步骤S3,否则执行步骤S2；S2:创建有功功率与速度设定值对应关系表；执行下一步；S3:采集机舱温度数值；执行下一步；S4:计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；执行下一步；其中，计算告警阈值的公式如下：告警阈值＝固定告警阈值-平均有功功率×系数；固定告警阈值是根据历史信息设定的固定值，系数是设定的常数；S5:判断机舱温度是否高于告警阈值；若是，执行步骤S6,若否，执行步骤S16；S6:根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；执行下一步；S7:第二时间阈值后，采集当前机舱温度数值；执行下一步；S8:判断当前机舱温度数值是否大于前一时刻的机舱温度数值；若是，执行步骤S9,否则执行步骤S14；S9:判断散热风扇的速度设定值是否小于额定转速；若是，执行步骤S13,否则，执行步骤S10；；S10:控制散热风扇按照第一速度阈值工作；执行下一步；S11:判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；若是，执行步骤S12,否则执行步骤S7；S12:将第一速度阈值更新到有功功率与速度设定值对应关 系表中；执行步骤S7；S13:风电机组进入限功率运行模式，将风电机组当前有功功率设定值减小第一功率阈值；执行下一步；S14:判断机舱温度是否小于停止阈值；若是，执行步骤S15,否则，执行步骤S7；S15:控制散热风扇停止工作；执行下一步；S16:结束。
此外，上述的存储器中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
本发明实施例提供一种非暂态计算机可读存储介质，该非暂态计算机可读存储介质存储计算机指令，该计算机指令使计算机执行上述方法实施例所提供的方法，例如包括：SS1、创建有功功率—速度设定值表；SS2:采集机舱温度数值，由移动均值滤波算法计算其10分钟平均有功功率；由有功功率计算机舱温度告警阈值，其公式为：告警阈值＝固定告警阈值-10分钟平均有功功率×系数；SS3:判断机舱温度是否高于告警阈值；当机舱温度高于告警阈值时，根据机舱温度的有功功率在有功功率-速度设定值表中查找散热风扇的速度设定值，同时启动散热风扇降温；SS4:延时5min后继续测量机组的机舱温度；当机舱温度继续升高且散热风扇的转速在额定转速以下时，则将当前散热风扇的速度设定值增加10％ 的额定速度，同时继续判断机组10分钟有功功率变化是否小于2％的有功功率，若是，则将当前转速更新到有功功率-速度设定表中；当机舱温度继续升高且散热风扇转速到达额定值时，机组进入限功率运行模式，将机组当前有功功率设定值减小10％的额定有功功率；反之，进入SS5；SS5:判断机舱温度是否低于停止阈值；当机舱温度低于停止阈值时，散热风扇停止运行；反之，则进入SS3。
尽管通过参考附图并结合优选实施例的方式对本发明进行了详细描述，但本发明并不限于此。在不脱离本发明的精神和实质的前提下，本领域普通技术人员可以对本发明的实施例进行各种等效的修改或替换，而这些修改或替换都应在本发明的涵盖范围内/任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (8)

  1. 一种自适应控制风电机组机舱温度的方法，其特征在于，包括如下步骤：
    判断预存储的有功功率与速度设定值对应关系表是否存在；
    当有功功率与速度设定值对应关系表存在时，采集机舱温度数值；
    计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；具体，采用移动均值滤波算法计算风电机组在第一时间阈值内的平均有功功率；计算告警阈值的公式如下：
    告警阈值＝固定告警阈值-平均有功功率×系数；其中，固定告警阈值是根据历史信息设定的固定值，系数是根据历史数据计算的设定时间段的温度变化与平均有功功率的比值；
    判断机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；
    第二时间阈值后，采集当前机舱温度数值；
    判断当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作，同时判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
    当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中；执行步骤：第二时间阈值后，采集当前机舱温度数值；
    判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作。
  2. 根据权利要求1所述的自适应控制风电机组机舱温度的方法，其特征在于，判断预存储的有功功率与速度设定值对应关系表是否存在的步骤之后还包括：
    当有功功率与速度设定值对应关系表不存在时，创建有功功率与速度设定值对应关系表。
  3. 根据权利要求2所述的自适应控制风电机组机舱温度的方法，其特征在于，第二时间阈值后，采集当前机舱温度数值的步骤之后包括：
    判断当前机舱温度数值是否大于前一时刻的机舱温度数值；
    当前机舱温度数值大于前一时刻的机舱温度数值时，判断散热风扇的速度设定值是否小于额定转速；
    散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作，同时，判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
    当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中；执行步骤：第二时间阈值后，采集当前机舱温度数值；
    当有功功率变化值大于或等于功率变化阈值时，执行步骤：第二时间阈值后，采集当前机舱温度数值。
  4. 根据权利要求3所述的自适应控制风电机组机舱温度的方法，其特征在于，判断当前机舱温度数值是否大于前一时刻的机舱温度数值的步骤之后还包括：
    当前机舱温度数值小于或等于前一时刻采集的机舱温度数值时，判断机舱温度是否小于停止阈值；
    若是，控制散热风扇停止工作；
    若否，执行步骤：第二时间阈值后，采集当前机舱温度数值。
  5. 根据权利要求4所述的自适应控制风电机组机舱温度的方法，其特征在于，判断散热风扇的速度设定值是否小于额定转速的步骤之后还包括：
    散热风扇的速度设定值大于或等于额定转速时，风电机组进入限功率运行模式，将风电机组当前有功功率设定值减小第一功率阈值，执行步骤：判断机舱温度是否小于停止阈值。
  6. 一种基于权利要求1-5任一项权利要求所述的自适应控制风电机组机舱温度的方法的装置，其特征在于，包括对应关系表创建模块、温度采集模块、计算模块、温度判断模块、风扇控制模块、速度判断模块、功率设定模块、功率变化监测模块和关系表更新模块；
    对应关系表创建模块，用于创建有功功率与速度设定值对应关系表；
    温度采集模块，用于采集机舱温度数值；
    计算模块，用于计算第一时间阈值内风电机组的平均有功功率，根据计算出的平均有功功率计算机舱温度告警阈值；
    温度判断模块，用于判断机舱温度是否高于告警阈值；判断当前机舱温度数值大于前一时刻的机舱温度数值；
    风扇控制模块，用于当机舱温度高于告警阈值时，根据风电机组当前的有功功率在有功功率与速度设定值对应关系表中查找散热风扇的速度设定值，控制散热风扇按照查找到的速度设定值工作；当前机舱温度数值大于前一时刻的机舱温度数值且散热风扇的速度设定值小于额定转速时，控制散热风扇按照第一速度阈值工作；判断当前机舱温度数值小于或等于前一时刻采集的机舱温度数值，且当机舱温度小于停止阈值时，控制散热风扇停止工作；
    速度判断模块，用于当前机舱温度数值大于前一时刻的机舱温度数值时，判断散热风扇的速度设定值是否小于额定转速；
    功率变化监测模块，用于风扇控制模块控制散热风扇按照第一速度阈值工作后，判断风电机组在第一时间阈值内的有功功率变化值是否小于功率变化阈值；
    功率设定模块，用于当散热风扇的速度设定值大于或等于额定转速时，将风电机组当前有功功率设定值减小第一功率阈值；
    关系表更新模块，用于当有功功率变化值小于功率变化阈值时，将第一速度阈值更新到有功功率与速度设定值对应关系表中。
  7. 一种电子设备，其特征在于，所述电子设备包括至少一个处理器以及与所述至少一个处理器通信连接的存储器；存储器存储有可被至少一个处理器执行的计算机程序指令，所述计算机程序指令被所述至少一个处理器执行，以使所述至少一个处理器能够执行如权利要求1至5中任一项权利要求所述的自适应控制风电机组机舱温度的方法。
  8. 一种非暂态计算机可读存储介质，其特征在于，所述非暂态计算机可读存储介质存储计算机指令，所述计算机指令使所述计算机执行如权利要求1至5任一项权利要求所述的自适应控制风电机组机舱温度的方法。
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