CN108825452A - Determine the method and apparatus that wind generator set blade freezes - Google Patents
Determine the method and apparatus that wind generator set blade freezes Download PDFInfo
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/40—Ice detection; De-icing means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D17/00—Monitoring or testing of wind motors, e.g. diagnostics
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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Abstract
公开一种确定风力发电机组叶片结冰的方法和装置。所述方法包括：获取风电场内的多个风力发电机组各自检测的外部环境信息和风速，作为第一组外部环境数据和第一组风速数据；获取所述风电场内的至少一个测风塔各自检测的外部环境信息和风速，作为第二组外部环境数据和第二组风速数据；使用第一组外部环境数据和第二组外部环境数据，计算所述外部环境信息的外部环境综合值；使用第一组风速数据和第二组风速数据计算所述风电场的综合风速；基于所述外部环境综合值和所述综合风速，确定所述多个风力发电机组的叶片是否结冰。
A method and apparatus for determining blade icing of a wind power generating set are disclosed. The method includes: obtaining the external environment information and wind speed detected by each of the multiple wind power generating sets in the wind farm as the first set of external environment data and the first set of wind speed data; obtaining at least one wind measuring tower in the wind farm The external environment information and wind speed detected respectively are used as the second set of external environment data and the second set of wind speed data; using the first set of external environment data and the second set of external environment data to calculate the external environment comprehensive value of the external environment information; Using the first set of wind speed data and the second set of wind speed data to calculate the comprehensive wind speed of the wind farm; based on the external environment comprehensive value and the comprehensive wind speed, determine whether the blades of the plurality of wind power generating sets are icy.
Description
技术领域technical field
本申请总体说来涉及风力发电技术领域，更具体地讲，涉及一种确定风力发电机组叶片结冰的方法和装置。The present application generally relates to the technical field of wind power generation, and more specifically, relates to a method and device for determining icing of blades of a wind power generating set.
背景技术Background technique
温度低、海拔高、湿度大的区域，很容易造成风力发电机组的叶片结冰。一方面，叶片结冰会导致叶片过载，叶片气动性能下降进而使风力发电机组出力下降；另一方面，由于载荷分布不均，可能导致机组振动过大甚至叶片断裂，影响叶片寿命。另外，在叶轮旋转过程中，当叶片上的冰层黏着力下降时极易出现冰块脱落，对风机周围架空电力线缆、牲畜以及车辆和人员造成安全威胁。In areas with low temperature, high altitude and high humidity, it is easy to cause the blades of wind turbines to freeze. On the one hand, icing of the blades will lead to overloading of the blades, which will reduce the aerodynamic performance of the blades and reduce the output of the wind turbine unit; on the other hand, due to the uneven load distribution, the unit may vibrate too much and even the blades may break, which will affect the life of the blades. In addition, during the rotation of the impeller, when the adhesion of the ice layer on the blade decreases, the ice cubes will easily fall off, which will pose a safety threat to the overhead power cables, livestock, vehicles and personnel around the fan.
传统的判断叶片结冰的方法是通过肉眼直观确定，但这种方法在风电场的地形复杂或能见度低的天气情况下受到限制。现有的自动判断方法通常是利用风力发电机组的叶片结冰以后的风速与机组运行数据的关系特征和经验来判断叶片是否结冰，但这种方法依赖于机组本身检测的数据，一旦机组的传感器失效或数据被干扰，可能造成误判。另外，在一个风电场中，叶片结冰往往发生于风电场中的多个机组，目前的判断方法基于单个机组，缺少对整个风电场的风力发电机组的叶片结冰的系统判断方法。The traditional method of judging blade icing is visually determined by naked eyes, but this method is limited in the wind farm with complex terrain or low visibility weather conditions. Existing automatic judgment methods usually use the relationship characteristics and experience between the wind speed after the blades of the wind turbine freeze and the operating data of the unit to judge whether the blades are frozen, but this method relies on the data detected by the unit itself. Sensor failure or data interference may cause misjudgment. In addition, in a wind farm, blade icing often occurs in multiple units in the wind farm. The current judgment method is based on a single unit, and there is a lack of a systematic judgment method for blade icing of wind turbines in the entire wind farm.
发明内容Contents of the invention
本申请的实施例的目的在于提供一种确定风力发电机组叶片结冰的方法和装置，通过集成风电场中的测风塔的测量数据与风力发电机组的测量数据，在满足外部环境的物理结冰条件的情况下，对比风电场的理论输出功率与实际输出功率，以判断风电场中的风力发电机组的叶片是否结冰。The purpose of the embodiments of the present application is to provide a method and device for determining icing of wind turbine blades. By integrating the measurement data of the wind measuring tower in the wind farm and the measurement data of the wind turbine, the system meets the physical structure of the external environment. In the case of ice conditions, compare the theoretical output power of the wind farm with the actual output power to judge whether the blades of the wind turbines in the wind farm are frozen.
根据本申请的实施例的一方面，提供一种确定风力发电机组叶片结冰的方法，其特征在于，所述方法可包括：获取风电场内的多个风力发电机组各自检测的外部环境信息和风速，作为第一组外部环境数据和第一组风速数据；获取所述风电场内的至少一个测风塔各自检测的外部环境信息和风速，作为第二组外部环境数据和第二组风速数据；使用第一组外部环境数据和第二组外部环境数据，计算所述外部环境信息的外部环境综合值；使用第一组风速数据和第二组风速数据计算所述风电场的综合风速；基于所述外部环境综合值和所述综合风速，确定所述多个风力发电机组的叶片是否结冰。According to an aspect of the embodiments of the present application, there is provided a method for determining icing of blades of a wind power generating set, which is characterized in that the method may include: acquiring external environment information and Wind speed, as the first set of external environment data and the first set of wind speed data; obtaining the external environment information and wind speed respectively detected by at least one wind measuring tower in the wind farm, as the second set of external environment data and the second set of wind speed data ; Using the first set of external environment data and the second set of external environment data to calculate the comprehensive value of the external environment of the external environment information; using the first set of wind speed data and the second set of wind speed data to calculate the comprehensive wind speed of the wind farm; The integrated value of the external environment and the integrated wind speed determine whether the blades of the plurality of wind power generating sets are icy.
可选地，基于所述外部环境综合值和所述综合风速，确定所述多个风力发电机组的叶片是否结冰的步骤可包括：使用所述综合风速计算所述风电场的功率输出理论总值，并与所述风电场的功率输出实际总值进行比较；如果作为比较结果的差值大于功率差设定值，并且所述外部环境综合值满足外部环境设定值条件，则确定所述多个风力发电机组的叶片结冰。Optionally, based on the integrated value of the external environment and the integrated wind speed, the step of determining whether the blades of the plurality of wind power generating sets are icy may include: using the integrated wind speed to calculate a theoretical total power output of the wind farm. value, and compare it with the actual total value of the power output of the wind farm; if the difference as a comparison result is greater than the power difference set value, and the external environment comprehensive value satisfies the external environment set value condition, then determine the The blades of several wind turbines were icy.
可选地，所述外部环境信息可包括环境温度和环境湿度，所述外部环境综合值可包括温度综合值和湿度综合值。Optionally, the external environment information may include ambient temperature and ambient humidity, and the external environment integrated value may include a temperature integrated value and a humidity integrated value.
可选地，所述外部环境设定值条件是指所述温度综合值小于温度设定值，并且所述湿度综合值大于湿度设定值。Optionally, the external environment setting value condition means that the integrated temperature value is less than the set temperature value, and the integrated humidity value is greater than the set humidity value.
可选地，计算所述外部环境信息的外部环境综合值的步骤可包括：计算第一组外部环境数据和第二组外部环境数据中的所有环境温度数据的温度平均值，作为所述温度综合值；计算第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据的湿度平均值，作为所述湿度综合值。Optionally, the step of calculating the external environment comprehensive value of the external environment information may include: calculating the temperature average value of all the environmental temperature data in the first group of external environment data and the second group of external environment data, as the temperature comprehensive value value; calculate the humidity average value of all the environmental humidity data in the first group of external environment data and the second group of external environment data, as the humidity comprehensive value.
可选地，所述方法还可包括：在计算所述外部环境信息的外部环境综合值的步骤之前，对第一组外部环境数据和第二组外部环境数据执行预处理，其中，执行预处理的步骤可包括：从第一组外部环境数据和第二组外部环境数据中的所有环境温度数据剔除第一预定数量的极端环境温度数据；从第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据剔除第二预定数量的极端环境湿度数据；从剔除后剩余的环境温度数据和环境湿度数据分别计算所述温度综合值和所述湿度综合值。Optionally, the method may further include: performing preprocessing on the first set of external environment data and the second set of external environment data before the step of calculating the external environment comprehensive value of the external environment information, wherein the preprocessing is performed The step may include: removing a first predetermined amount of extreme ambient temperature data from all ambient temperature data in the first set of external environment data and the second set of external environment data; Removing a second predetermined amount of extreme ambient humidity data from all the ambient humidity data in ; calculating the integrated temperature value and the integrated humidity value from the removed ambient temperature data and ambient humidity data respectively.
可选地，剔除第一预定数量的极端环境温度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境温度数据进行降序排序；剔除前m1条环境温度数据和后m2条环境温度数据，其中，剔除第二预定数量的极端环境湿度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据进行降序排序；剔除前n1条环境湿度数据和后n2条环境湿度数据，其中，m1、m2、n1、n2为大于等于1的整数，m1与m2的和等于所述第一预定数量，n1与n2的和等于所述第二预定数量。Optionally, the step of eliminating the first predetermined amount of extreme ambient temperature data may include: sorting all the ambient temperature data in the first set of external environment data and the second set of external environment data in descending order; data and the last m pieces of ambient temperature data, wherein the step of eliminating the second predetermined amount of extreme ambient humidity data may include: sorting all the ambient humidity data in the first group of external environment data and the second group of external environment data in descending order ; Eliminate the first n 1 pieces of environmental humidity data and the last n 2 pieces of environmental humidity data, wherein m 1 , m 2 , n 1 , and n 2 are integers greater than or equal to 1, and the sum of m 1 and m 2 is equal to the first The predetermined number, the sum of n 1 and n 2 is equal to the second predetermined number.
可选地，使用所述综合风速计算所述风电场的功率输出理论总值的步骤可包括：使用所述综合风速计算所述风电场中并网运行的风力发电机组各自的功率输出理论值；将计算的各自的功率输出理论值相加，得到所述风电场的功率输出理论总值。Optionally, the step of using the comprehensive wind speed to calculate the theoretical total value of the power output of the wind farm may include: using the comprehensive wind speed to calculate the respective theoretical power output values of the grid-connected wind turbines in the wind farm; Add the calculated theoretical power output values together to obtain the total theoretical power output value of the wind farm.
可选地，使用所述综合风速计算所述风电场中并网运行的风力发电机组各自的功率输出理论值的步骤可包括：将并网运行的风力发电机组各自的理论功率曲线中与所述综合风速对应的功率值，作为并网运行的风力发电机组各自的功率输出理论值。Optionally, the step of using the integrated wind speed to calculate the theoretical power output values of the wind power generators connected to the grid in the wind farm may include: comparing the theoretical power curves of the wind power generators connected to the grid with the The power value corresponding to the comprehensive wind speed is used as the theoretical power output value of each wind turbine operating in grid-connected operation.
根据本申请的实施例的另一方面，提供一种确定风力发电机组叶片结冰的装置，其特征在于，所述装置可包括：第一获取模块，获取风电场内的多个风力发电机组各自检测的外部环境信息和风速，作为第一组外部环境数据和第一组风速数据；第二获取模块，获取所述风电场内的至少一个测风塔各自检测的外部环境信息和风速，作为第二组外部环境数据和第二组风速数据；外部环境综合值计算模块，使用第一组外部环境数据和第二组外部环境数据，计算所述外部环境信息的外部环境综合值；综合风速计算模块，使用第一组风速数据和第二组风速数据计算所述风电场的综合风速；结冰确定模块，基于所述外部环境综合值和所述综合风速，确定所述多个风力发电机组的叶片是否结冰。According to another aspect of the embodiments of the present application, there is provided a device for determining blade icing of a wind power generating set, characterized in that the device may include: a first acquisition module, which acquires The detected external environment information and wind speed are used as the first set of external environment data and the first set of wind speed data; the second acquisition module acquires the external environment information and wind speed detected by at least one wind measuring tower in the wind farm respectively, as the first set of wind speed data; Two sets of external environment data and the second set of wind speed data; the external environment comprehensive value calculation module uses the first set of external environment data and the second set of external environment data to calculate the external environment comprehensive value of the external environment information; the comprehensive wind speed calculation module , using the first set of wind speed data and the second set of wind speed data to calculate the integrated wind speed of the wind farm; the icing determination module determines the blades of the plurality of wind power generating sets based on the integrated value of the external environment and the integrated wind speed Is it icy.
可选地，基于所述外部环境综合值和所述综合风速，确定所述多个风力发电机组的叶片是否结冰的步骤可包括：使用所述综合风速计算所述风电场的功率输出理论总值，并与所述风电场的功率输出实际总值进行比较；如果作为比较结果的差值大于功率差设定值，并且所述外部环境综合值满足外部环境设定值条件，则结冰确定模块确定所述多个风力发电机组的叶片结冰。Optionally, based on the integrated value of the external environment and the integrated wind speed, the step of determining whether the blades of the plurality of wind power generating sets are icy may include: using the integrated wind speed to calculate a theoretical total power output of the wind farm. value, and compare it with the actual total value of the power output of the wind farm; if the difference as a comparison result is greater than the power difference set value, and the external environment comprehensive value satisfies the external environment set value condition, then icing is determined A module determines that blades of the plurality of wind turbines are icing.
可选地，所述外部环境信息可包括环境温度和环境湿度，所述外部环境综合值可包括温度综合值和湿度综合值。Optionally, the external environment information may include ambient temperature and ambient humidity, and the external environment integrated value may include a temperature integrated value and a humidity integrated value.
可选地，所述外部环境设定值条件是指所述温度综合值小于温度设定值，并且所述湿度综合值大于湿度设定值。Optionally, the external environment setting value condition means that the integrated temperature value is less than the set temperature value, and the integrated humidity value is greater than the set humidity value.
可选地，计算所述外部环境信息的外部环境综合值的步骤可包括：计算第一组外部环境数据和第二组外部环境数据中的所有环境温度数据的温度平均值，作为所述温度综合值；计算第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据的湿度平均值，作为所述湿度综合值。Optionally, the step of calculating the external environment comprehensive value of the external environment information may include: calculating the temperature average value of all the environmental temperature data in the first group of external environment data and the second group of external environment data, as the temperature comprehensive value value; calculate the humidity average value of all the environmental humidity data in the first group of external environment data and the second group of external environment data, as the humidity comprehensive value.
可选地，所述装置还可包括：预处理模块，在外部环境综合值计算模块计算所述外部环境信息的外部环境综合值之前，对第一组外部环境数据和第二组外部环境数据执行预处理，其中，执行预处理的步骤可包括：从第一组外部环境数据和第二组外部环境数据中的所有环境温度数据剔除第一预定数量的极端环境温度数据；从第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据剔除第二预定数量的极端环境湿度数据；从剔除后剩余的环境温度数据和环境湿度数据分别计算所述温度综合值和所述湿度综合值。Optionally, the device may further include: a preprocessing module, before the external environment comprehensive value calculation module calculates the external environment comprehensive value of the external environment information, execute the processing on the first set of external environment data and the second set of external environment data Preprocessing, wherein the step of performing preprocessing may include: removing a first predetermined amount of extreme ambient temperature data from all ambient temperature data in the first set of external environment data and the second set of external environment data; Removing a second predetermined amount of extreme ambient humidity data from all the ambient humidity data in the data and the second set of external environment data; calculating the integrated temperature value and the integrated humidity value from the remaining ambient temperature data and ambient humidity data after removal .
可选地，剔除第一预定数量的极端环境温度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境温度数据进行降序排序；剔除前m1条环境温度数据和后m2条环境温度数据，其中，剔除第二预定数量的极端环境湿度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据进行降序排序；剔除前n1条环境湿度数据和后n2条环境湿度数据，其中，m1、m2、n1、n2为大于等于1的整数，m1与m2的和等于所述第一预定数量，n1与n2的和等于所述第二预定数量。Optionally, the step of eliminating the first predetermined amount of extreme ambient temperature data may include: sorting all the ambient temperature data in the first set of external environment data and the second set of external environment data in descending order; data and the last m pieces of ambient temperature data, wherein the step of eliminating the second predetermined amount of extreme ambient humidity data may include: sorting all the ambient humidity data in the first group of external environment data and the second group of external environment data in descending order ; Eliminate the first n 1 pieces of environmental humidity data and the last n 2 pieces of environmental humidity data, wherein m 1 , m 2 , n 1 , and n 2 are integers greater than or equal to 1, and the sum of m 1 and m 2 is equal to the first The predetermined number, the sum of n 1 and n 2 is equal to the second predetermined number.
可选地，使用所述综合风速计算所述风电场的功率输出理论总值的步骤可包括：使用所述综合风速计算所述风电场中并网运行的风力发电机组各自的功率输出理论值；将计算的各自的功率输出理论值相加，得到所述风电场的功率输出理论总值。Optionally, the step of using the comprehensive wind speed to calculate the theoretical total value of the power output of the wind farm may include: using the comprehensive wind speed to calculate the respective theoretical power output values of the grid-connected wind turbines in the wind farm; Add the calculated theoretical power output values together to obtain the total theoretical power output value of the wind farm.
可选地，使用所述综合风速计算所述风电场中并网运行的风力发电机组各自的功率输出理论值的步骤可包括：将并网运行的风力发电机组各自的理论功率曲线中与所述综合风速对应的功率值，作为并网运行的风力发电机组各自的功率输出理论值。Optionally, the step of using the integrated wind speed to calculate the theoretical power output values of the wind power generators connected to the grid in the wind farm may include: comparing the theoretical power curves of the wind power generators connected to the grid with the The power value corresponding to the comprehensive wind speed is used as the theoretical power output value of each wind turbine operating in grid-connected operation.
根据本申请的实施例的另一方面，提供一种存储有计算机程序的计算机可读存储介质，当所述计算机程序在被处理器执行时实现如上所述的确定风力发电机组叶片结冰的方法。According to another aspect of the embodiments of the present application, a computer-readable storage medium storing a computer program is provided, and when the computer program is executed by a processor, the method for determining blade icing of a wind power generating set as described above is implemented .
根据本申请的实施例的另一方面，提供一种风力发电机组的控制设备，所述控制设备可包括：处理器；存储器，存储有计算机程序，当所述计算机程序被处理器执行时，实现如上所述的确定风力发电机组叶片结冰的方法。According to another aspect of the embodiment of the present application, there is provided a control device for a wind power generating set, the control device may include: a processor; a memory storing a computer program, and when the computer program is executed by the processor, the A method of determining blade icing of a wind turbine as described above.
根据本申请的实施例的方法和装置，利用风电场中的测风塔来判断风力发电机组的叶片结冰情况，能够提高判断准确度和安全性，降低叶片结冰带来的风险。According to the method and device of the embodiments of the present application, using the wind measuring tower in the wind farm to judge the icing condition of the blades of the wind power generation unit can improve the judgment accuracy and safety, and reduce the risk caused by the icing of the blades.
附图说明Description of drawings
通过下面结合示例性地示出实施例的附图进行的详细描述，本申请的实施例的上述和其它目的、特点和优点将会变得更加清楚，其特征在于：The above and other objects, features and advantages of the embodiments of the present application will become clearer through the following detailed description in conjunction with the accompanying drawings exemplarily showing the embodiments, characterized in that:
图1示出根据本申请的实施例的确定风力发电机组叶片结冰的方法的流程图；FIG. 1 shows a flow chart of a method for determining blade icing of a wind power generating set according to an embodiment of the present application;
图2示出根据本申请的实施例的确定风力发电机组叶片结冰的装置的结构框图。Fig. 2 shows a structural block diagram of a device for determining blade icing of a wind power generating set according to an embodiment of the present application.
具体实施方式Detailed ways
现在，将参照附图更充分地描述不同的示例性实施例。Various exemplary embodiments will now be described more fully with reference to the accompanying drawings.
图1示出根据本申请的实施例的确定风力发电机组叶片结冰的方法的流程图。Fig. 1 shows a flow chart of a method for determining blade icing of a wind power generating set according to an embodiment of the present application.
参照图1，在步骤S10中，可获取风电场内的多个风力发电机组各自检测的外部环境信息和风速，作为第一组外部环境数据和第一组风速数据。Referring to FIG. 1 , in step S10 , the external environment information and wind speed detected by each of the multiple wind power generating sets in the wind farm can be acquired as a first set of external environment data and a first set of wind speed data.
具体来说，可使用风电场内的风力发电机组自身所安装的各种传感器或检测装置，实时检测外部环境信息和风速。这里，外部环境信息可包括环境温度和环境湿度。多个风力发电机组检测到的外部环境信息和风速数据，可分别作为第一组外部环境数据和第一组风速数据。换言之，第一组外部环境数据可包括风力发电机组检测的环境温度数据和环境湿度数据。第一组风速数据可包括风力发电机组检测的风速数据。Specifically, various sensors or detection devices installed on the wind power generators in the wind farm can be used to detect external environmental information and wind speed in real time. Here, the external environment information may include ambient temperature and ambient humidity. The external environment information and wind speed data detected by the multiple wind power generating sets can be used as the first set of external environment data and the first set of wind speed data respectively. In other words, the first set of external environment data may include ambient temperature data and ambient humidity data detected by the wind power generating set. The first set of wind speed data may include wind speed data detected by the wind power generating set.
在步骤S20中，可获取风电场内的至少一个测风塔各自检测的外部环境信息和风速，作为第二组外部环境数据和第二组风速数据。In step S20, external environment information and wind speed detected by at least one wind measuring tower in the wind farm may be obtained as a second set of external environment data and a second set of wind speed data.
通常，根据风电场内的风力发电机组的数量，风电场内可设置一个或多个测风塔。测风塔可用于观测风电场的气象信息，例如，风速、风向、环境温度、环境湿度、大气压力等。至少一个测风塔检测到的外部环境信息和风速数据，可分别作为第二组外部环境数据和第二组风速数据。换言之，第二组外部环境数据可包括测风塔检测的环境温度数据和环境湿度数据。第二组风速数据可包括测风塔检测的风速数据。Generally, one or more wind measuring towers may be installed in the wind farm according to the number of wind power generating sets in the wind farm. The wind measuring tower can be used to observe the meteorological information of the wind farm, such as wind speed, wind direction, ambient temperature, ambient humidity, atmospheric pressure, etc. The external environment information and wind speed data detected by at least one wind measuring tower can be used as the second set of external environment data and the second set of wind speed data respectively. In other words, the second set of external environment data may include ambient temperature data and ambient humidity data detected by the wind measuring tower. The second set of wind speed data may include wind speed data detected by a wind measuring tower.
虽然在本申请中描述步骤S10在步骤S20之前执行，但步骤S10可在步骤S20之后执行，或二者可并行执行，本申请对此不作限制。Although it is described in this application that step S10 is performed before step S20, step S10 may be performed after step S20, or both may be performed in parallel, which is not limited in this application.
此外，由于各风电场的实际情况不同，部分风电场的风力发电机组未配置用于检测环境湿度的传感器或检测装置，在这种情况下，可仅由测风塔检测环境湿度。换言之，在这种情况下，第一组外部环境数据中可仅包括风力发电机组检测的环境温度数据，而不包括环境湿度数据。In addition, due to the different actual conditions of each wind farm, the wind turbines in some wind farms are not equipped with sensors or detection devices for detecting ambient humidity. In this case, the ambient humidity can only be detected by the wind measuring tower. In other words, in this case, the first set of external environment data may only include the ambient temperature data detected by the wind power generating set, but not the ambient humidity data.
在步骤S30中，可使用第一组外部环境数据和第二组外部环境数据，计算所述外部环境信息的外部环境综合值。In step S30, the external environment comprehensive value of the external environment information may be calculated by using the first set of external environment data and the second set of external environment data.
这里，外部环境综合值可用于指示如上所述的外部环境信息(即，环境温度和环境湿度)。外部环境综合值可包括温度综合值和湿度综合值。换言之，外部环境综合值可作为环境温度和环境湿度的表征。Here, the external environment integrated value may be used to indicate the external environment information (ie, ambient temperature and ambient humidity) as described above. The external environment integrated value may include a temperature integrated value and a humidity integrated value. In other words, the comprehensive value of the external environment can be used as a representation of ambient temperature and ambient humidity.
在一个实施例中，计算所述外部环境信息的外部环境综合值的步骤可包括：计算第一组外部环境数据和第二组外部环境数据中的所有环境温度数据的温度平均值，作为温度综合值；计算第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据的湿度平均值，作为湿度综合值。In one embodiment, the step of calculating the external environment comprehensive value of the external environment information may include: calculating the temperature average value of all the environmental temperature data in the first set of external environment data and the second set of external environment data, as the integrated temperature value; calculate the humidity average value of all the environmental humidity data in the first group of external environment data and the second group of external environment data, as the comprehensive value of humidity.
例如，可提取第一组外部环境数据中的环境温度数据和第二组外部环境数据中的环境温度数据，并计算这些环境温度数据的平均值，作为温度综合值。可提取第一组外部环境数据中的环境湿度数据和第二组外部环境数据中的环境湿度数据，并计算这些环境湿度数据的平均值，作为湿度综合值。此外，在如上所述的风力发电机组未配置用于检测环境湿度的传感器或检测装置的情况下，可仅提取第二组外部环境数据中的环境湿度数据，并计算这些环境湿度数据的平均值，作为湿度综合值。然而，这仅为示例，本领域技术人员能够理解，计算温度综合值和湿度综合值的方式不限于计算环境温度数据的平均值和环境湿度数据的平均值。For example, the ambient temperature data in the first set of external environment data and the ambient temperature data in the second set of external environment data can be extracted, and the average value of these ambient temperature data can be calculated as the integrated temperature value. The ambient humidity data in the first set of external environment data and the ambient humidity data in the second set of external environment data can be extracted, and the average value of these ambient humidity data can be calculated as the integrated humidity value. In addition, in the case that the above-mentioned wind power generating set is not configured with a sensor or detection device for detecting ambient humidity, only the ambient humidity data in the second set of external environmental data can be extracted, and the average value of these ambient humidity data can be calculated , as the comprehensive value of humidity. However, this is only an example, and those skilled in the art can understand that the manner of calculating the integrated temperature value and the integrated humidity value is not limited to calculating the average value of the ambient temperature data and the average value of the ambient humidity data.
在另一个实施例中，在计算所述外部环境信息的外部环境综合值的步骤之前，可对第一组外部环境数据和第二组外部环境数据执行预处理。In another embodiment, before the step of calculating the external environment comprehensive value of the external environment information, preprocessing may be performed on the first set of external environment data and the second set of external environment data.
执行预处理的步骤可包括：从第一组外部环境数据和第二组外部环境数据中的所有环境温度数据剔除第一预定数量的极端环境温度数据；从第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据剔除第二预定数量的极端环境湿度数据；从剔除后剩余的环境温度数据和环境湿度数据分别计算温度综合值和湿度综合值。The step of performing preprocessing may include: removing a first predetermined amount of extreme ambient temperature data from all ambient temperature data in the first set of external environment data and the second set of external environment data; All the ambient humidity data in the external environment data removes a second predetermined amount of extreme ambient humidity data; and calculates a temperature integrated value and a humidity integrated value from the removed ambient temperature data and ambient humidity data respectively.
例如，第一预定数量和第二预定数量可根据环境温度数据和环境湿度数据的数量来预先确定。极端环境温度数据和极端环境湿度数据可指所有环境温度数据和所有环境湿度数据中的异常或相对偏差大的数据，也可仅指所有环境温度数据和所有环境湿度数据中相对较大或相对较小的数据。For example, the first predetermined number and the second predetermined number may be predetermined according to the quantities of ambient temperature data and ambient humidity data. Extreme ambient temperature data and extreme ambient humidity data can refer to data with abnormal or large relative deviations in all ambient temperature data and all ambient humidity data, or only refer to relatively large or relatively large deviations in all ambient temperature data and all ambient humidity data. small data.
剔除第一预定数量的极端环境温度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境温度数据进行降序排序；剔除前m1条环境温度数据和后m2条环境温度数据。The step of eliminating the first predetermined amount of extreme ambient temperature data may include: sorting all the ambient temperature data in the first group of external environment data and the second group of external environment data in descending order; removing the first m pieces of environmental temperature data and the last m 2 ambient temperature data.
剔除第二预定数量的极端环境湿度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据进行降序排序；剔除前n1条环境湿度数据和后n2条环境湿度数据。The step of eliminating the second predetermined amount of extreme environmental humidity data may include: sorting all the environmental humidity data in the first set of external environmental data and the second set of external environmental data in descending order; eliminating the first n 1 pieces of environmental humidity data and the last n 2 environmental humidity data.
这里，m1、m2、n1、n2为大于等于1的整数，m1与m2的和等于上述第一预定数量，n1与n2的和等于上述第二预定数量。此外，剔除极端数据的方式仅为示例，本申请不限于此，本领域技术人员可使用现有技术的其他方式来剔除极端数据。Here, m 1 , m 2 , n 1 , and n 2 are integers greater than or equal to 1, the sum of m 1 and m 2 is equal to the first predetermined number, and the sum of n 1 and n 2 is equal to the second predetermined number. In addition, the manner of removing extreme data is only an example, and the present application is not limited thereto, and those skilled in the art may use other methods in the prior art to eliminate extreme data.
利用风电场测风塔的气象信息与风机本身检测的外部环境数据进行对比，剔除无效的数据，确保外部环境确实满足结冰的条件下，再通过对比测风塔预测功率与风电场实际输出功率来相对精确的判断风电场机组叶片结冰情况，识别的是整个风电场的风机叶片结冰情况，同时也避免了因为单个风机单纯依赖风机本身检测的外部环境数据不准确而造成的误判断问题。Use the meteorological information of the anemometer tower of the wind farm to compare with the external environmental data detected by the wind turbine itself, eliminate invalid data, and ensure that the external environment does meet the conditions of icing, and then compare the predicted power of the anemometer tower with the actual output power of the wind farm To relatively accurately judge the icing situation of the blades of the wind farm unit, it identifies the icing situation of the fan blades of the entire wind farm, and at the same time avoids the problem of misjudgment caused by the inaccurate external environment data detected by a single fan alone relying on the fan itself .
在步骤S40中，可使用第一组风速数据和第二组风速数据计算风电场的综合风速。In step S40, the comprehensive wind speed of the wind farm may be calculated by using the first set of wind speed data and the second set of wind speed data.
与外部环境综合值类似，综合风速可作为风电场的风速的表征。例如，可计算由风力发电机组检测的第一组风速数据和由测风塔检测的第二组风速数据的平均值，作为综合风速。Similar to the integrated value of the external environment, the integrated wind speed can be used as a representation of the wind speed of the wind farm. For example, the average value of the first set of wind speed data detected by the wind power generating set and the second set of wind speed data detected by the wind measuring tower can be calculated as the comprehensive wind speed.
虽然在本申请中描述步骤S30在步骤S40之前执行，但步骤S30可在步骤S40之后执行，或二者可并行执行，本申请对此不作限制。Although it is described in this application that step S30 is performed before step S40, step S30 may be performed after step S40, or both may be performed in parallel, which is not limited in this application.
在步骤S50中，可基于外部环境综合值和综合风速，确定多个风力发电机组的叶片是否结冰。In step S50, it may be determined whether the blades of the plurality of wind power generating sets are icy based on the integrated value of the external environment and the integrated wind speed.
在一个实施例中，基于外部环境综合值和综合风速，确定多个风力发电机组的叶片是否结冰的步骤可包括：使用综合风速计算风电场的功率输出理论总值，并与风电场的功率输出实际总值进行比较；如果作为比较结果的差值大于功率差设定值，并且外部环境综合值满足外部环境设定值条件，则确定多个风力发电机组的叶片结冰。In one embodiment, based on the integrated value of the external environment and the integrated wind speed, the step of determining whether the blades of the plurality of wind power generating sets are icy may include: using the integrated wind speed to calculate the theoretical total value of the power output of the wind farm, and comparing it with the power output of the wind farm Output the actual total value for comparison; if the difference as a comparison result is greater than the power difference set value, and the external environment comprehensive value satisfies the external environment set value condition, it is determined that the blades of multiple wind power generating sets are icing.
这里，外部环境设定值条件是指温度综合值小于温度设定值，并且湿度综合值大于湿度设定值。温度设定值和湿度设定值可被预先设置。外部环境设定值条件可以是叶片结冰的物理条件。Here, the external environment setting value condition means that the integrated temperature value is less than the temperature set value, and the integrated humidity value is greater than the humidity set value. Temperature set point and humidity set point can be preset. The external environmental setpoint conditions may be physical conditions for blade icing.
在一个实施例中，使用综合风速计算风电场的功率输出理论总值的步骤可包括：使用综合风速计算风电场中并网运行的风力发电机组各自的功率输出理论值；将计算的各自的功率输出理论值相加，得到风电场的功率输出理论总值。In one embodiment, the step of using the integrated wind speed to calculate the theoretical total value of the power output of the wind farm may include: using the integrated wind speed to calculate the respective theoretical power output values of the grid-connected wind turbines in the wind farm; The output theoretical values are added to obtain the theoretical total value of the power output of the wind farm.
在一个实施例中，使用综合风速计算风电场中并网运行的风力发电机组各自的功率输出理论值的步骤可包括：将并网运行的风力发电机组各自的理论功率曲线中与综合风速对应的功率值，作为并网运行的风力发电机组各自的功率输出理论值。In one embodiment, the step of using the integrated wind speed to calculate the theoretical power output values of the grid-connected wind turbines in the wind farm may include: taking the theoretical power curves of the grid-connected wind turbines corresponding to the integrated wind speed The power value is used as the theoretical value of the power output of the wind turbines running on the grid.
例如，通常，通过风力发电机组的检测装置可获取各个风力发电机组的运行状态信息，包括停机、待机、启动、并网等。可选取并网运行的各个风力发电机组的理论功率曲线中在计算的综合风速下的对应的功率值，作为并网运行的各个风力发电机组的功率输出理论值。理论功率曲线可指示风力发电机组的理论输出功率与风速的对应关系。理论功率曲线可预先存储在风电场的中控服务器中。For example, generally, the operation state information of each wind power generating set can be obtained through the detecting device of the wind power generating set, including stop, standby, start, grid-connected and so on. The corresponding power value under the calculated comprehensive wind speed in the theoretical power curve of each wind power generating set operating in grid-connected operation may be selected as the theoretical power output value of each wind generating set operating in grid-connected operation. The theoretical power curve can indicate the corresponding relationship between the theoretical output power of the wind power generating set and the wind speed. The theoretical power curve can be pre-stored in the central control server of the wind farm.
如上所述，将并网运行的风力发电机组各自的功率输出理论值相加，可得到风电场的功率输出理论总值。然后，可将功率输出理论总值与风电场的功率输出实际总值进行比较。如果作为比较结果的差值大于功率差设定值，并且外部环境综合值满足外部环境设定值条件，则确定风电场内的多个风力发电机组的叶片结冰。As mentioned above, the total theoretical power output value of the wind farm can be obtained by adding the theoretical power output values of the grid-connected wind turbines. The theoretical total value of the power output can then be compared with the actual total value of the power output of the wind farm. If the difference as a comparison result is greater than the power difference set value, and the external environment integrated value satisfies the external environment set value condition, it is determined that the blades of the plurality of wind power generating sets in the wind farm are icing.
例如，可计算功率输出理论总值与功率输出实际总值的差值。可预先设置功率差设定值。当上述差值大于功率差设定值时，表示风电场的实际输出功率存在较大程度的降低。此时，如果外部环境综合值满足外部环境设定值条件，即如果温度综合值小于温度设定值且湿度综合值大于湿度设定值，则可确定风电场内的风力发电机组的叶片结冰，并通过中控服务器发出告警，以便采取后续的控制措施。For example, the difference between the theoretical total value of power output and the actual total value of power output can be calculated. The power difference setting value can be preset. When the above difference is greater than the set value of the power difference, it means that the actual output power of the wind farm has decreased to a large extent. At this time, if the integrated value of the external environment satisfies the condition of the set value of the external environment, that is, if the integrated value of the temperature is less than the set value of the temperature and the integrated value of the humidity is greater than the set value of the humidity, it can be determined that the blades of the wind turbines in the wind farm are icing , and send an alarm through the central control server, so that follow-up control measures can be taken.
如果外部环境设定值条件与功率差设定值条件未同时满足，即如果外部环境综合值不满足外部环境设定值条件或者计算的差值不大于功率差设定值，则确定风电场内的风力发电机组的叶片未结冰，此时，方法可返回步骤S10，继续获取第一组外部环境数据和第一组风速数据。If the external environment set value condition and the power difference set value condition are not met at the same time, that is, if the external environment comprehensive value does not meet the external environment set value condition or the calculated difference is not greater than the power difference set value, then determine The blades of the wind power generating set are not frozen, at this time, the method may return to step S10, and continue to obtain the first set of external environment data and the first set of wind speed data.
图2示出根据本申请的实施例的确定风力发电机组叶片结冰的装置的结构框图。Fig. 2 shows a structural block diagram of a device for determining blade icing of a wind power generating set according to an embodiment of the present application.
参照图2，根据本申请的实施例的确定风力发电机组叶片结冰的装置100可包括第一获取模块10、第二获取模块20、外部环境综合值计算模块30、综合风速计算模块40和结冰确定模块50。Referring to FIG. 2 , the device 100 for determining blade icing of a wind power generating set according to an embodiment of the present application may include a first acquisition module 10, a second acquisition module 20, an external environment integrated value calculation module 30, an integrated wind speed calculation module 40 and ice determination module 50 .
第一获取模块10可获取风电场内的多个风力发电机组各自检测的外部环境信息和风速，作为第一组外部环境数据和第一组风速数据。The first obtaining module 10 may obtain the external environment information and wind speed detected by each of the multiple wind power generating sets in the wind farm as the first set of external environment data and the first set of wind speed data.
风电场内的风力发电机组自身所安装的各种传感器或检测装置可实时检测外部环境信息和风速。这里，外部环境信息可包括环境温度和环境湿度。多个风力发电机组检测到的外部环境信息和风速数据，可分别作为第一组外部环境数据和第一组风速数据。换言之，第一组外部环境数据可包括风力发电机组检测的环境温度数据和环境湿度数据。第一组风速数据可包括风力发电机组检测的风速数据。The various sensors or detection devices installed on the wind turbines in the wind farm can detect external environmental information and wind speed in real time. Here, the external environment information may include ambient temperature and ambient humidity. The external environment information and wind speed data detected by the multiple wind power generating sets can be used as the first set of external environment data and the first set of wind speed data respectively. In other words, the first set of external environment data may include ambient temperature data and ambient humidity data detected by the wind power generating set. The first set of wind speed data may include wind speed data detected by the wind power generating set.
第二获取模块20可获取风电场内的至少一个测风塔各自检测的外部环境信息和风速，作为第二组外部环境数据和第二组风速数据。The second obtaining module 20 may obtain external environment information and wind speed detected by at least one wind measuring tower in the wind farm as a second set of external environment data and a second set of wind speed data.
至少一个测风塔检测到的外部环境信息和风速数据，可分别作为第二组外部环境数据和第二组风速数据。换言之，第二组外部环境数据可包括测风塔检测的环境温度数据和环境湿度数据。第二组风速数据可包括测风塔检测的风速数据。The external environment information and wind speed data detected by at least one wind measuring tower can be used as the second set of external environment data and the second set of wind speed data respectively. In other words, the second set of external environment data may include ambient temperature data and ambient humidity data detected by the wind measuring tower. The second set of wind speed data may include wind speed data detected by a wind measuring tower.
外部环境综合值计算模块30可使用第一组外部环境数据和第二组外部环境数据，计算所述外部环境信息的外部环境综合值。The external environment comprehensive value calculation module 30 may use the first set of external environment data and the second set of external environment data to calculate the external environment comprehensive value of the external environment information.
这里，外部环境综合值可用于指示如上所述的外部环境信息(即，环境温度和环境湿度)。外部环境综合值可包括温度综合值和湿度综合值。换言之，外部环境综合值可作为环境温度和环境湿度的表征。Here, the external environment integrated value may be used to indicate the external environment information (ie, ambient temperature and ambient humidity) as described above. The external environment integrated value may include a temperature integrated value and a humidity integrated value. In other words, the comprehensive value of the external environment can be used as a representation of ambient temperature and ambient humidity.
在一个实施例中，计算所述外部环境信息的外部环境综合值的步骤可包括：计算第一组外部环境数据和第二组外部环境数据中的所有环境温度数据的温度平均值，作为温度综合值；计算第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据的湿度平均值，作为湿度综合值。In one embodiment, the step of calculating the external environment comprehensive value of the external environment information may include: calculating the temperature average value of all the environmental temperature data in the first set of external environment data and the second set of external environment data, as the integrated temperature value; calculate the humidity average value of all the environmental humidity data in the first group of external environment data and the second group of external environment data, as the comprehensive value of humidity.
例如，外部环境综合值计算模块30可提取第一组外部环境数据中的环境温度数据和第二组外部环境数据中的环境温度数据，并计算这些环境温度数据的平均值，作为温度综合值。外部环境综合值计算模块30可提取第一组外部环境数据中的环境湿度数据和第二组外部环境数据中的环境湿度数据，并计算这些环境湿度数据的平均值，作为湿度综合值。然而，这仅为示例，本领域技术人员能够理解，计算温度综合值和湿度综合值的方式不限于计算环境温度数据的平均值和环境湿度数据的平均值。For example, the external environment integrated value calculation module 30 may extract the ambient temperature data in the first set of external environment data and the ambient temperature data in the second set of external environment data, and calculate the average value of these ambient temperature data as the integrated temperature value. The external environment integrated value calculation module 30 can extract the ambient humidity data in the first set of external environment data and the ambient humidity data in the second set of external environment data, and calculate the average value of these ambient humidity data as the humidity integrated value. However, this is only an example, and those skilled in the art can understand that the manner of calculating the integrated temperature value and the integrated humidity value is not limited to calculating the average value of the ambient temperature data and the average value of the ambient humidity data.
在另一个实施例中，装置100还可包括预处理模块(未示出)。在外部环境综合值计算模块30计算所述外部环境信息的外部环境综合值之前，预处理模块可对第一组外部环境数据和第二组外部环境数据执行预处理。In another embodiment, the device 100 may further include a preprocessing module (not shown). Before the external environment comprehensive value calculation module 30 calculates the external environment comprehensive value of the external environment information, the preprocessing module may perform preprocessing on the first set of external environment data and the second set of external environment data.
执行预处理的步骤可包括：从第一组外部环境数据和第二组外部环境数据中的所有环境温度数据剔除第一预定数量的极端环境温度数据；从第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据剔除第二预定数量的极端环境湿度数据；从剔除后剩余的环境温度数据和环境湿度数据分别计算温度综合值和湿度综合值。The step of performing preprocessing may include: removing a first predetermined amount of extreme ambient temperature data from all ambient temperature data in the first set of external environment data and the second set of external environment data; All the ambient humidity data in the external environment data removes a second predetermined amount of extreme ambient humidity data; and calculates a temperature integrated value and a humidity integrated value from the removed ambient temperature data and ambient humidity data respectively.
例如，第一预定数量和第二预定数量可根据环境温度数据和环境湿度数据的数量来预先确定。极端环境温度数据和极端环境湿度数据可指所有环境温度数据和所有环境湿度数据中的异常或相对偏差大的数据，也可仅指所有环境温度数据和所有环境湿度数据中相对较大或相对较小的数据。For example, the first predetermined number and the second predetermined number may be predetermined according to the quantities of ambient temperature data and ambient humidity data. Extreme ambient temperature data and extreme ambient humidity data can refer to data with abnormal or large relative deviations in all ambient temperature data and all ambient humidity data, or only refer to relatively large or relatively large deviations in all ambient temperature data and all ambient humidity data. small data.
剔除第一预定数量的极端环境温度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境温度数据进行降序排序；剔除前m1条环境温度数据和后m2条环境温度数据。The step of eliminating the first predetermined amount of extreme ambient temperature data may include: sorting all the ambient temperature data in the first group of external environment data and the second group of external environment data in descending order; removing the first m pieces of environmental temperature data and the last m 2 ambient temperature data.
剔除第二预定数量的极端环境湿度数据的步骤可包括：将第一组外部环境数据和第二组外部环境数据中的所有环境湿度数据进行降序排序；剔除前n1条环境湿度数据和后n2条环境湿度数据。The step of eliminating the second predetermined amount of extreme environmental humidity data may include: sorting all the environmental humidity data in the first set of external environmental data and the second set of external environmental data in descending order; eliminating the first n 1 pieces of environmental humidity data and the last n 2 environmental humidity data.
这里，m1、m2、n1、n2为大于等于1的整数，m1与m2的和等于所述第一预定数量，n1与n2的和等于所述第二预定数量。此外，剔除极端数据的方式仅为示例，本申请不限于此，本领域技术人员可使用现有技术的其他方式来剔除极端数据。Here, m 1 , m 2 , n 1 , and n 2 are integers greater than or equal to 1, the sum of m 1 and m 2 is equal to the first predetermined number, and the sum of n 1 and n 2 is equal to the second predetermined number. In addition, the manner of removing extreme data is only an example, and the present application is not limited thereto, and those skilled in the art may use other methods in the prior art to eliminate extreme data.
综合风速计算模块40可使用第一组风速数据和第二组风速数据计算风电场的综合风速。The integrated wind speed calculation module 40 can use the first set of wind speed data and the second set of wind speed data to calculate the integrated wind speed of the wind farm.
与外部环境综合值类似，综合风速可作为风电场的风速的表征。例如，可计算由风力发电机组检测的第一组风速数据和由测风塔检测的第二组风速数据的平均值，作为综合风速。Similar to the integrated value of the external environment, the integrated wind speed can be used as a representation of the wind speed of the wind farm. For example, the average value of the first set of wind speed data detected by the wind power generating set and the second set of wind speed data detected by the wind measuring tower can be calculated as the comprehensive wind speed.
结冰确定模块50可基于外部环境综合值和综合风速，确定多个风力发电机组的叶片是否结冰。The icing determining module 50 may determine whether blades of multiple wind power generating sets are icing based on the comprehensive value of the external environment and the comprehensive wind speed.
在一个实施例中，基于外部环境综合值和综合风速，确定多个风力发电机组的叶片是否结冰的步骤可包括：使用综合风速计算风电场的功率输出理论总值，并与风电场的功率输出实际总值进行比较；如果作为比较结果的差值大于功率差设定值，并且外部环境综合值满足外部环境设定值条件，则结冰确定模块50确定多个风力发电机组的叶片结冰。In one embodiment, based on the integrated value of the external environment and the integrated wind speed, the step of determining whether the blades of the plurality of wind power generating sets are icy may include: using the integrated wind speed to calculate the theoretical total value of the power output of the wind farm, and comparing it with the power output of the wind farm Output the actual total value for comparison; if the difference as the comparison result is greater than the power difference set value, and the external environment comprehensive value meets the external environment set value condition, then the icing determination module 50 determines that the blades of multiple wind power generating sets are icing .
这里，外部环境设定值条件是指温度综合值小于温度设定值，并且湿度综合值大于湿度设定值。温度设定值和湿度设定值可被预先设置。外部环境设定值条件可以是叶片结冰的物理条件。Here, the external environment setting value condition means that the integrated temperature value is less than the temperature set value, and the integrated humidity value is greater than the humidity set value. Temperature set point and humidity set point can be preset. The external environmental setpoint conditions may be physical conditions for blade icing.
在一个实施例中，使用综合风速计算风电场的功率输出理论总值的步骤可包括：使用综合风速计算风电场中并网运行的风力发电机组各自的功率输出理论值；将计算的各自的功率输出理论值相加，得到风电场的功率输出理论总值。In one embodiment, the step of using the integrated wind speed to calculate the theoretical total value of the power output of the wind farm may include: using the integrated wind speed to calculate the respective theoretical power output values of the grid-connected wind turbines in the wind farm; The output theoretical values are added to obtain the theoretical total value of the power output of the wind farm.
在一个实施例中，使用综合风速计算风电场中并网运行的风力发电机组各自的功率输出理论值的步骤可包括：将并网运行的风力发电机组各自的理论功率曲线中与综合风速对应的功率值，作为并网运行的风力发电机组各自的功率输出理论值。In one embodiment, the step of using the integrated wind speed to calculate the theoretical power output values of the grid-connected wind turbines in the wind farm may include: taking the theoretical power curves of the grid-connected wind turbines corresponding to the integrated wind speed The power value is used as the theoretical value of the power output of the wind turbines running on the grid.
例如，通常，风力发电机组的检测装置可获取各个风力发电机组的运行状态信息，包括停机、待机、启动、并网等。结冰确定模块50可选取并网运行的各个风力发电机组的理论功率曲线中在计算的综合风速下的对应的功率值，作为并网运行的各个风力发电机组的功率输出理论值。理论功率曲线可指示风力发电机组的理论输出功率与风速的对应关系。理论功率曲线可预先存储在风电场的中控服务器中。For example, generally, the detection device of the wind power generating set can obtain the operation state information of each wind generating set, including stop, standby, start, grid-connected and so on. The icing determination module 50 may select the corresponding power value under the calculated comprehensive wind speed in the theoretical power curve of each wind power generating set operating in grid connection as the theoretical power output value of each wind generating set operating in grid connection. The theoretical power curve can indicate the corresponding relationship between the theoretical output power of the wind power generating set and the wind speed. The theoretical power curve can be pre-stored in the central control server of the wind farm.
如上所述，结冰确定模块50将并网运行的风力发电机组各自的功率输出理论值相加，可得到风电场的功率输出理论总值。然后，结冰确定模块50可将功率输出理论总值与风电场的功率输出实际总值进行比较。如果作为比较结果的差值大于功率差设定值，并且外部环境综合值满足外部环境设定值条件，则结冰确定模块50确定风电场内的多个风力发电机组的叶片结冰。As mentioned above, the icing determination module 50 adds up the theoretical power output values of the grid-connected wind power generating sets to obtain the theoretical total value of the power output of the wind farm. The icing determination module 50 may then compare the theoretical total power output to the wind farm's actual total power output. If the difference as a comparison result is greater than the power difference set value, and the external environment integrated value satisfies the external environment set value condition, the icing determining module 50 determines that the blades of the plurality of wind power generating sets in the wind farm are icing.
例如，结冰确定模块50可计算功率输出理论总值与功率输出实际总值的差值。功率差设定值可预先设置。当上述差值大于功率差设定值时，表示风电场的实际输出功率存在较大程度的降低。此时，如果外部环境综合值满足外部环境设定值条件，即如果温度综合值小于温度设定值且湿度综合值大于湿度设定值，则结冰确定模块50可确定风电场内的风力发电机组的叶片结冰，并通过中控服务器发出告警，以便采取后续的控制措施。For example, the icing determination module 50 may calculate the difference between the theoretical total value of power output and the actual total value of power output. The power difference setting value can be preset. When the above difference is greater than the set value of the power difference, it means that the actual output power of the wind farm has decreased to a large extent. At this time, if the integrated value of the external environment satisfies the condition of the set value of the external environment, that is, if the integrated value of the temperature is less than the set value of the temperature and the integrated value of the humidity is greater than the set value of the humidity, then the icing determination module 50 can determine the wind power generation in the wind farm. The blades of the unit freeze, and an alarm is sent through the central control server, so that subsequent control measures can be taken.
如果外部环境设定值条件与功率差设定值条件未同时满足，即如果外部环境综合值不满足外部环境设定值条件或者计算的差值不大于功率差设定值，则结冰确定模块50确定风电场内的风力发电机组的叶片未结冰，此时，第一获取模块10可继续获取第一组外部环境数据和第一组风速数据，第二获取模块20可继续获取第二组外部环境数据和第二组风速数据。If the external environment setpoint condition and the power difference setpoint condition are not satisfied at the same time, that is, if the external environment integrated value does not meet the external environment setpoint condition or the calculated difference is not greater than the power difference setpoint value, then the icing determination module 50. It is determined that the blades of the wind power generating sets in the wind farm are not frozen. At this time, the first acquisition module 10 can continue to acquire the first set of external environment data and the first set of wind speed data, and the second acquisition module 20 can continue to acquire the second set of external environment data. The external environment data and the second set of wind speed data.
根据本申请的实施例还提供一种控制设备。例如，该控制设备可以是风力发电机组的主控制器，应注意，这仅为示例，例如，该控制设备可以是与风力发电机组连接以控制风力发电机组运行的其他控制设备。该控制设备可包括处理器和存储器。存储器用于存储计算机程序。所述计算机程序被处理器执行使得处理器执行如上所述的确定风力发电机组叶片结冰的方法的计算机程序。Embodiments according to the present application also provide a control device. For example, the control device may be the main controller of the wind power generating set. It should be noted that this is only an example. For example, the control device may be other control devices connected to the wind power generating set to control the operation of the wind power generating set. The control device may include a processor and memory. Memory is used to store computer programs. Said computer program is executed by a processor such that the processor executes the computer program of the method for determining blade icing of a wind power plant as described above.
根据本申请的实施例还提供一种存储有计算机程序的计算机可读存储介质。该计算机可读存储介质存储有当被处理器执行时使得处理器执行上述确定风力发电机组叶片结冰的方法的计算机程序。该计算机可读记录介质是可存储由计算机系统读出的数据的任意数据存储装置。计算机可读记录介质的示例包括：只读存储器、随机存取存储器、只读光盘、磁带、软盘、光数据存储装置和载波(诸如经有线或无线传输路径通过互联网的数据传输)。Embodiments according to the present application also provide a computer-readable storage medium storing a computer program. The computer-readable storage medium stores a computer program that, when executed by a processor, causes the processor to perform the above-mentioned method for determining blade icing of a wind power generating set. The computer-readable recording medium is any data storage device that can store data read by a computer system. Examples of computer-readable recording media include: read-only memory, random-access memory, optical disc, magnetic tape, floppy disk, optical data storage devices, and carrier waves (such as data transmission over the Internet via wired or wireless transmission paths).
根据本申请的确定风力发电机组叶片结冰的方法和装置，可集成风电场中的测风塔的测量数据和风力发电机组的测量数据，在满足外部环境的物理结冰条件的情况下，对比风电场的理论输出功率与实际输出功率，从而确定风电场中的风力发电机组的叶片是否结冰，解决了人用肉眼观察判断的局限性。According to the method and device for determining the icing of wind turbine blades in the present application, the measurement data of the wind measuring tower in the wind farm and the measurement data of the wind turbine can be integrated, and when the physical icing conditions of the external environment are met, the comparison The theoretical output power and actual output power of the wind farm can be used to determine whether the blades of the wind turbines in the wind farm are frozen, which solves the limitations of human observation and judgment with the naked eye.
本申请引入测风塔的测量数据来判断叶片是否结冰，能够提高判断的准确度和安全性，降低叶片结冰带来的风险。The present application introduces the measurement data of the wind measuring tower to judge whether the blade is icy, which can improve the accuracy and safety of the judgment, and reduce the risk caused by the icy blade.
本申请充分利用风电场测风塔的气象资源来解决风电场风机叶片结冰难以自动识别和检测不准确的问题。利用测风塔硬件系统和中央监控软件系统再结合风机运行状态和数据信息，能够相对准确的判断风电场风机叶片结冰情况并及时告警值班人员，以便及时采取相关措施，保证安全以及降低叶片结冰带来的风险。This application makes full use of the meteorological resources of the anemometer tower of the wind farm to solve the problem that the icing of the fan blades of the wind farm is difficult to be automatically identified and the detection is inaccurate. Using the wind tower hardware system and the central monitoring software system combined with the wind turbine operating status and data information, it is possible to relatively accurately judge the icing situation of the wind farm wind turbine blades and timely alert the personnel on duty, so as to take relevant measures in time to ensure safety and reduce blade freezing. Risks posed by ice.
尽管已经参照本申请示例性实施例具体显示和描述了本申请，但是本领域的技术人员应该理解，在不脱离权利要求所限定的本申请的精神和范围的情况下，可以对其进行形式和细节上的各种改变。Although the application has been particularly shown and described with reference to the exemplary embodiments thereof, it should be understood by those skilled in the art that changes may be made thereto in form and without departing from the spirit and scope of the application as defined by the claims. Various changes in details.
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