A method and system for de-icing control of a wind turbine blade

Abstract

A wind turbine blade deicing control method and system, the method comprises: obtaining meteorological data of a wind turbine site; determining whether the wind turbine is in a non-icing period or an icing period according to the meteorological data; if it is determined that the wind turbine is in the non-icing period, predicting the increased power generation of the wind turbine in a first time period, and determining whether to start the deicing equipment according to the predicted increased power generation; during the operation of the deicing equipment, collecting the wind turbine condition data and the meteorological data of the site every preset time, and controlling the operation of the deicing equipment according to the wind turbine condition data and the meteorological data; if it is determined that the wind turbine is in the icing period, obtaining the wind turbine condition data and the meteorological data of the site in a second time period, and determining whether to stop the deicing equipment according to the wind turbine condition data and the meteorological data, so that the energy-saving and efficient control of the deicing equipment can be realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wind turbine power generation, and particularly relates to a wind turbine blade anti-icing control method and system. BACKGROUND

[0002] The existing wind turbine blade anti-icing system mainly determines whether the wind turbine blade enters an icing period through artificial operation, and needs to be confirmed by an operator before starting the anti-icing system to run. Similarly, the operator needs to determine and operate artificially when the icing period ends, so as to exit the anti-icing system running state. The degree of intelligence is low, and there are many defects. For example, if the operator does not pay attention to the meteorological state and power generation power prediction data when entering the icing period, the anti-icing system may be started at the wrong time, and the ice may not be removed in time, resulting in unit shutdown. After the icing period ends, if the operator does not pay attention to the meteorological state and real-time power generation data, the anti-icing system cannot be stopped in time, resulting in useless work and increasing self-consumption power. In addition, the icing period is usually not continuous, and under normal circumstances, December of one year to March of the next year is the icing period, and there are 1-4 icing periods during this period. Sometimes, the operation needs to be performed at night or in the early morning, and if the operator needs to determine whether to start or stop the anti-icing system, the operation may not be timely. The anti-icing system cannot be associated with the meteorological wind speed condition, and the unit cannot run and generate power under low wind speed. If the anti-icing system is running at this time, it is meaningless and increases energy consumption. Therefore, it is necessary to propose a wind turbine blade anti-icing control method with high degree of intelligence. SUMMARY

[0003] The purpose of the application is to solve the problems of the prior art and provide a wind turbine blade anti-icing control method, system, electronic device and computer readable storage medium for realizing energy-saving and efficient control.

[0004] To achieve the above purpose, the technical scheme of the application is as follows:

[0005] Based on one aspect of the application, a wind turbine blade anti-icing control method is provided, comprising:

[0006] Obtaining meteorological data of the location of the wind turbine generator, and determining whether the wind turbine generator enters the icing period from the non-icing period or enters the non-icing period from the icing period according to the meteorological data;

[0007] If it is determined that the wind turbine generator enters the icing period from the non-icing period, the incremental power generation in a future first period of the wind turbine generator is predicted every preset time, and it is determined whether to start the anti-icing device according to the predicted incremental power generation in the future first period;

[0008] During the opening period of the ice prevention device, the wind turbine condition data and the meteorological data of the location are collected every preset time, and the operation of the ice prevention device is controlled according to the wind turbine condition data and the meteorological data.

[0009] If it is determined that the wind turbine enters the non-icing period from the icing period, the wind turbine condition data and the meteorological data of the location of the wind turbine in a future second period are obtained, and whether to close the ice prevention device is determined according to the wind turbine condition data and the meteorological data.

[0010] The wind turbine blade ice prevention control method provided by the application can automatically control the operation of the ice prevention device by judging whether the wind turbine enters the icing period through the meteorological data, without manual monitoring. In addition, the real-time meteorological data can be used to determine the increase in power generation of the ice prevention system, and whether the economic efficiency is met can be determined, so that the ice prevention capacity of the ice prevention device can be adjusted in real time. The real-time meteorological data and whether the blade is iced can be used to determine whether the ice prevention function is started in advance before the blade is iced, so that the surface temperature of the blade is maintained above 0℃ to prevent the blade from icing, and intelligent ice prevention control is realized.

[0011] In one embodiment, the meteorological data of the location of the wind turbine is obtained, and whether the wind turbine enters the icing period from the non-icing period or enters the non-icing period from the icing period is determined according to the meteorological data, including:

[0012] The meteorological data of the location of the wind turbine is obtained from a wind farm meteorological station and / or a local meteorological department, and the meteorological data includes temperature, humidity and wind speed;

[0013] If the wind turbine is currently in the non-icing period, the temperature and the humidity meet the first preset condition and last for at least a first preset time, it is determined that the wind turbine enters the icing period from the non-icing period;

[0014] If the wind turbine is currently in the icing period, the temperature and / or the humidity meet the second preset condition and last for at least a second preset time, it is determined that the wind turbine enters the non-icing period from the icing period.

[0015] In one embodiment, if it is determined that the wind turbine enters the non-icing period from the icing period, the increase in power generation of the wind turbine in a future first period is predicted every preset time, and whether to open the ice prevention device is determined according to the predicted increase in power generation in the future first period, including:

[0016] If it is determined that the wind turbine enters icing period from non-icing period, wind speed data in meteorological data in a future first period and blade icing condition of the wind turbine are acquired every preset time, predicted power generation of the wind turbine in the future first period is predicted according to the wind speed data, an operation mode of the anti-icing device is determined according to the blade icing condition, and predicted power consumption of the anti-icing device in the future first period is predicted according to the operation mode.

[0017] The predicted power generation is subtracted from the predicted power consumption to obtain the increased power generation, and the anti-icing device is determined to be started when the increased power generation is greater than a first preset value.

[0018] In an embodiment, during the starting of the anti-icing device, the wind turbine condition data and the meteorological data of the location are collected every preset time, and the operation of the anti-icing device is controlled according to the wind turbine condition data and the meteorological data.

[0019] During the starting of the anti-icing device, the blade icing condition of the wind turbine is collected every preset time.

[0020] If the blade icing condition of the wind turbine is non-icing, the anti-icing device is controlled to start the anti-icing mode.

[0021] If the blade icing condition of the wind turbine is icing, the anti-icing device is controlled to start the de-icing mode.

[0022] If the anti-icing device is in the anti-icing mode, meteorological data of the location of the wind turbine is collected every preset time, increased power generation of the wind turbine in a future third period is predicted according to wind speed data in the meteorological data, and the anti-icing device is controlled to be turned off when the increased power generation is less than a second preset value.

[0023] If the anti-icing device is in the de-icing mode, meteorological data of the location of the wind turbine is collected every preset time, increased power generation of the wind turbine in a future fourth period is predicted according to wind speed data in the meteorological data, and it is determined whether to turn off the anti-icing device according to the increased power generation in the future fourth period.

[0024] In an embodiment, the increased power generation of the wind turbine in the future third period is predicted according to the wind speed data in the meteorological data, including:

[0025] Predicted power generation of the wind turbine in the future third period is predicted according to the wind speed data.

[0026] comparing the predicted power generation of the wind turbine in a future third time period with the predicted power consumption of the anti-icing device in the future third time period in the anti-icing mode;

[0027] subtracting the predicted power consumption in the future third time period from the predicted power generation in the future third time period to obtain an increased power generation of the wind turbine in the future third time period.

[0028] In one embodiment, the determining whether to turn off the anti-icing device according to the increased power generation in the future fourth time period comprises:

[0029] when the increased power generation is less than or equal to a third preset value, controlling the anti-icing device to be turned off;

[0030] when the increased power generation is greater than a fourth preset value, collecting actual power generation of the wind turbine every preset time, and if the ratio of the actual power generation to the theoretical power generation of the wind turbine in the preset time continues to decrease, increasing the de-icing intensity of the anti-icing device to a maximum de-icing intensity on the premise that the increased power generation in the future fourth time period is greater than the fourth preset value; if the ratio of the actual power generation to the theoretical power generation of the wind turbine obtained in the preset time continues to decrease to below a fifth preset value, controlling the anti-icing device to be turned off. When the de-icing intensity of the anti-icing device is increased to the maximum de-icing intensity, the reasons for the continued decrease of the increased power generation of the wind turbine in the preset time include a decrease in wind speed or an increasingly thick ice on the blades.

[0031] In one embodiment, if it is determined that the wind turbine enters the non-icing period from the icing period, the wind turbine condition data and the meteorological data of a location of the wind turbine in a future second time period are obtained, and whether to turn off the anti-icing device is determined according to the wind turbine condition data and the meteorological data, comprising:

[0032] obtaining the icing condition of the blades of the wind turbine;

[0033] if the icing condition of the blades of the wind turbine is non-icing, controlling the anti-icing device to be turned off;

[0034] If the icing condition of the wind turbine blade is icing, the power generation increase of the wind turbine under natural de-icing condition and the power generation increase of the wind turbine under de-icing equipment de-icing condition in the future second period are predicted according to the acquired meteorological data of the wind turbine location in the future second period; if the power generation increase of the wind turbine under natural de-icing condition is greater than or equal to the power generation increase of the wind turbine under de-icing equipment de-icing condition, the de-icing equipment is controlled to be closed, and if the power generation increase of the wind turbine under natural de-icing condition is less than the power generation increase of the wind turbine under de-icing equipment de-icing condition, the de-icing equipment is controlled to be operated until the de-icing equipment is controlled to be closed when the wind turbine de-icing is completed.

[0035] Based on still another aspect of the present application, a wind turbine blade de-icing control system is provided, comprising:

[0036] A wind turbine state judging module is configured to acquire meteorological data of a wind turbine location, and determine whether the wind turbine enters an icing period from a non-icing period or enters a non-icing period from an icing period according to the meteorological data.

[0037] A de-icing opening control module is configured to, if it is determined that the wind turbine enters the icing period from the non-icing period, predict the power generation increase of the wind turbine in a future first period every preset time, and determine whether to open the de-icing equipment according to the predicted power generation increase in the future first period.

[0038] A de-icing operation control module is configured to, during the opening of the de-icing equipment, collect the wind turbine condition data and the meteorological data of the wind turbine location every preset time, and control the operation of the de-icing equipment according to the wind turbine condition data and the meteorological data.

[0039] A de-icing closing control module is configured to, if it is determined that the wind turbine enters the non-icing period from the icing period, acquire the wind turbine condition data and the meteorological data of the wind turbine location in a future second period, and determine whether to close the de-icing equipment according to the wind turbine condition data and the meteorological data.

[0040] Based on still another aspect of the present application, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement the method in any one of the above.

[0041] Based on still another aspect of the present application, a computer readable storage medium is provided, which stores a computer program, wherein the computer program is executable on a processor to implement the method in any one of the above.

[0042] The wind power blade anti-icing control method and system have the following beneficial effects compared with the prior art.

[0043] 1. The wind turbine is determined to enter the icing period by acquiring meteorological data, so as to automatically control the operation of the anti-icing equipment, without manual monitoring. Meanwhile, the real-time meteorological data can be used to determine the increase in power generation of the anti-icing system, and the economic efficiency of the operation is determined, and the anti-icing capacity of the anti-icing equipment is adjusted in real time. The real-time meteorological data and whether the blade is iced are combined to determine whether the anti-icing function is started in advance before the blade is iced, so that the surface temperature of the blade is maintained above 0 DEG C to prevent the blade from icing, and intelligent anti-icing control is realized.

[0044] 2. During the operation of the anti-icing equipment, the wind speed, temperature, humidity and other meteorological data of the future preset period are used to predict the increase in power generation of the wind turbine in the future preset period, and then the operation of the anti-icing equipment and the operation intensity are automatically adjusted, so that energy-saving and efficient control is realized, and the advantages of good stability, high reliability, conducive to centralized control and unattended are realized.

[0045] 3. The anti-icing control can be performed while the data is collected, analyzed, sorted and sent in all directions, for example, based on the SCADA system, the relevant data of the host and the weather station are read and processed, the real-time report and display of the key data such as the increase in power generation and the self-consumption power are realized, and the big data analysis of the anti-icing control problem is facilitated.

[0046] Other advantages of the present application will be described in detail in the subsequent specific embodiments combined with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0047] The drawings that form a part of the present application are used to provide a further understanding of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application.

[0048] In the drawings:

[0049] Figure 1 The flowchart of an embodiment of the wind power blade anti-icing control method of the present application is shown in the figure;

[0050] Figure 2 The structure diagram of an embodiment of the wind power blade anti-icing control system of the present application is shown in the figure;

[0051] Figure 3 The internal structure diagram of the electronic equipment in an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0052] For further explanation of the technical solutions of the present application, the present application will be described in detail below in conjunction with the accompanying drawings, wherein the same reference numerals represent the same components.

[0053] The wind power blade anti-icing control method of the present application is proposed based on the SCADA system. The SCADA system is an intelligent control system, which is a comprehensive information management system integrating computer technology, data transmission, control technology, modern equipment and management. It connects a large number of control devices with communication interface and host computers through various communication networks, and realizes centralized data processing, centralized monitoring, centralized analysis and centralized scheduling through intelligent management of the computer. The SCADA system obtains short-term power generation prediction data of the wind turbine through hardware or database access, and then judges whether the blade of the wind turbine enters the icing state according to the real-time collected meteorological data, and whether it is meaningful to increase power generation, and then autonomously controls the operation state and exit state of the anti-icing equipment.

[0054] As shown in Figure 1 In this embodiment, the wind power blade anti-icing control method comprises:

[0055] S1: Obtain meteorological data of the location of the wind turbine, and judge whether the wind turbine enters the icing period from the non-icing period or enters the non-icing period from the icing period according to the meteorological data.

[0056] In this embodiment, the meteorological data includes temperature and humidity data obtained from the wind farm meteorological station or the local meteorological department, and wind speed data obtained from the wind farm meteorological station or the local meteorological department or wind speed data obtained from the wind power prediction system of the wind farm.

[0057] In the embodiment, step S1 comprises: obtaining meteorological data of the location of the wind turbine from a wind farm meteorological station and a local meteorological department, the meteorological data including temperature and humidity; if the wind turbine is currently in a non-icing period, the temperature and humidity satisfy a first preset condition and at least for a first preset duration, it is determined that the wind turbine enters the icing period from the non-icing period, wherein the first preset condition refers to a preset icing temperature range and an icing humidity range, which includes a preset icing temperature threshold of 0℃ and an icing humidity threshold, the temperature and humidity are respectively within the preset icing temperature range and the icing humidity range, which means that the value of the temperature is less than or equal to the preset icing temperature threshold and the value of the humidity is greater than or equal to the preset icing humidity threshold; when the temperature and humidity continuously satisfy the first preset condition for a duration greater than or equal to the first preset duration, it is determined that the wind turbine enters the icing period from the non-icing period; if the wind turbine is currently in the icing period, the temperature and / or humidity satisfy a second preset condition and at least for a second preset duration, it is determined that the wind turbine enters the non-icing period from the icing period, wherein the second preset condition refers to a preset ice melting temperature range and a stop icing humidity range, which includes a preset ice melting temperature threshold and a stop icing humidity threshold, as long as the environment satisfies one of the temperature value greater than or equal to the ice melting temperature threshold and the humidity value less than or equal to the stop icing humidity threshold, it is determined that the second preset condition is satisfied; when the temperature and / or humidity continuously satisfy the second preset condition for a duration greater than or equal to the second preset duration, it is determined that the wind turbine enters the non-icing period from the icing period.

[0058] In the embodiment, the meteorological data comes from a wind farm meteorological station and a local meteorological department terminal, and the accuracy of the meteorological data can be ensured by comprehensively judging the meteorological data from the two sources. In addition, if the local meteorological department terminal is not open to the public, real-time 24-hour meteorological data of the local day can be crawled through a PYthon network crawler and saved to a text file, and the text file is converted to Ethernet through a fiber, and read by an upper computer. The wind farm meteorological station (ice observation station) is constructed at a site with sufficient representativeness, and the meteorological data of the wind farm meteorological station (ice observation station) is a beneficial supplement to satellite meteorological data. In other embodiments, the wind turbine can also adjust the blade attitude according to the meteorological data to ensure safe operation and maximum power generation of the wind turbine.

[0059] S2: If it is determined that the wind turbine enters the icing period from the non-icing period, the incremental power generation of the wind turbine in a first period in the future is predicted every preset time, and it is determined whether to start the anti-icing device according to the predicted incremental power generation of the wind turbine in the first period in the future.

[0060] In the embodiment, the step S2 comprises: if it is determined that the wind turbine enters the icing period from the non-icing period, acquiring the wind speed data in the meteorological data in a future first period and the blade icing condition of the wind turbine every preset time, predicting the expected power generation of the wind turbine in the future first period according to the wind speed data, determining the operation mode of the anti-icing device according to the blade icing condition, and predicting the expected power consumption of the anti-icing device in the future first period according to the operation mode; subtracting the expected power consumption from the expected power generation to obtain the increased power generation, and determining to start the anti-icing device when the increased power generation is greater than a first preset value.

[0061] S3: collecting the wind turbine condition data and the meteorological data of the location every preset time during the starting of the anti-icing device, and controlling the operation of the anti-icing device according to the wind turbine condition data and the meteorological data.

[0062] In the embodiment, the step S3 comprises: collecting the blade icing condition of the wind turbine every preset time during the starting of the anti-icing device, which can be collected by the icing sensor arranged outside the nacelle; controlling the anti-icing device to start the anti-icing mode when the blade icing condition of the wind turbine is not icing; and controlling the anti-icing device to start the de-icing mode when the blade icing condition of the wind turbine is icing.

[0063] As known from the step S2, during the period when the wind turbine enters the icing period, the anti-icing device is started only when the increased power generation obtained by subtracting the expected power consumption from the expected power generation is greater than a first preset value, so that during the starting of the anti-icing device, the wind turbine can be in an icing-free operation state, an icing operation state, or an icing shutdown state, but it can be determined that the wind turbine has the increased power generation greater than the first preset value in the future first period, the anti-icing device has operation economy, and the anti-icing device is kept started.

[0064] If the anti-icing device is in the anti-icing mode, the meteorological data of the location of the wind turbine is collected every preset time, the increased power generation of the wind turbine in a future third period is predicted according to the wind speed data in the meteorological data, and the anti-icing device is controlled to be turned off when the increased power generation is less than a second preset value; wherein the increased power generation of the wind turbine in the future third period predicted according to the wind speed data in the meteorological data comprises: predicting the expected power generation of the wind turbine in the future third period according to the wind speed data; comparing the expected power generation of the wind turbine in the future third period with the expected power consumption of the anti-icing device in the future third period in the anti-icing mode; and obtaining the increased power generation of the wind turbine in the future third period by subtracting the expected power consumption in the future third period from the expected power generation in the future third period.

[0065] If the anti-icing device is in the de-icing mode, the weather data of the site of the wind turbine generator is collected every preset time, the incremental power generation of the wind turbine generator in a future fourth period is predicted according to the wind speed data in the weather data, and whether the anti-icing device is closed is determined according to the incremental power generation in the future fourth period. Wherein, according to the incremental power generation in the future fourth period to determine whether to close the anti-icing device includes: when the incremental power generation is less than or equal to the third preset value, the anti-icing device is controlled to be closed; when the incremental power generation is greater than the fourth preset value, the actual power generation of the wind turbine generator is collected every preset time, and if the ratio of the actual power generation of the wind turbine generator to the theoretical power generation in the preset time continues to decrease, it means that at least one of the wind speed continues to decrease and the icing of the wind turbine blade thickens, at this time, the anti-icing device can be controlled to increase the de-icing intensity to the maximum de-icing intensity to accelerate the melting of the ice layer on the blade surface on the premise that the wind turbine generator generates more power in the future fourth period; if the ratio of the actual power generation of the wind turbine generator to the theoretical power generation obtained in the preset time continues to decrease to below the fifth preset value, it means that the wind speed condition of the current environment is not good or the melting effect of the ice layer of the wind turbine blade is not good, so that the anti-icing device continues to run in the de-icing mode without increasing the power generation, therefore the anti-icing device is controlled to be closed. Based on the wind turbine blade anti-icing control method, the anti-icing device can adjust its de-icing capacity in real time according to the condition of the wind turbine generator, and more energy-saving and efficient control is realized.

[0066] S4: If it is determined that the wind turbine generator enters the non-icing period from the icing period, the wind turbine generator condition data and the weather data of the site of the wind turbine generator in a future second period are obtained, and whether the anti-icing device is closed is determined according to the wind turbine generator condition data and the weather data.

[0067] In this embodiment, step S4 includes: obtaining the icing condition of the blade of the wind turbine generator; if the icing condition of the blade of the wind turbine generator is not icing, the anti-icing device is controlled to be closed; if the icing condition of the blade of the wind turbine generator is icing (at this time, whether it is icing operation or icing shutdown), the incremental power generation of the wind turbine generator in a natural de-icing condition and the incremental power generation of the wind turbine generator in a de-icing condition by the anti-icing device in a future second period are predicted according to the obtained weather data of the site of the wind turbine generator in the future second period; if the incremental power generation of the wind turbine generator in the natural de-icing condition is greater than or equal to the incremental power generation of the wind turbine generator in the de-icing condition by the anti-icing device, the anti-icing device is controlled to be closed, and if the incremental power generation of the wind turbine generator in the natural de-icing condition is less than the incremental power generation of the wind turbine generator in the de-icing condition by the anti-icing device, the anti-icing device is controlled to run until the wind turbine generator is de-iced and the anti-icing device is controlled to be closed.

[0068] In the embodiment, the first period, the second period, the third period and the fourth period are preset periods, and the time length of each period can be determined according to actual prediction needs. For example, the second period can be preset to 1 hour, and the increased power generation of the wind turbine during natural ice melting and the increased power generation of the wind turbine during ice melting by the anti-icing device in the second period can be predicted.

[0069] As shown in Figure 2 The wind turbine anti-icing control system further comprises:

[0070] The unit state judgment module 10 is configured to acquire meteorological data of the location of the wind turbine, and determine whether the wind turbine enters the icing period from the non-icing period or enters the non-icing period from the icing period according to the meteorological data.

[0071] The start-up ice melting control module 20 is configured to, if it is determined that the wind turbine enters the icing period from the non-icing period, predict the increased power generation of the wind turbine in a first future period, and determine whether to start up the anti-icing device according to the predicted increased power generation of the wind turbine in the first future period.

[0072] The ice melting operation control module 30 is configured to, during the start-up of the anti-icing device, collect wind turbine condition data and meteorological data of the location of the wind turbine every preset time, and control the operation of the anti-icing device according to the wind turbine condition data and the meteorological data.

[0073] The shutdown ice melting control module 40 is configured to, if it is determined that the wind turbine enters the non-icing period from the icing period, acquire wind turbine condition data and meteorological data of the location of the wind turbine in a second future period, and determine whether to shut down the anti-icing device according to the wind turbine condition data and the meteorological data.

[0074] The wind power blade deicing control method and system of the present application can automatically control the operation of the deicing equipment by obtaining meteorological data to determine whether the wind turbine enters the icing period, without manual monitoring. In addition, the amount of additional power generation of the deicing system can be determined in real time according to real-time meteorological data, and the economic efficiency of the deicing system can be determined, so that the deicing capacity of the deicing equipment can be adjusted in real time. The deicing function can be started in advance before the blade icing to maintain the temperature of the blade surface above 0℃ to prevent the blade from icing, and intelligent deicing control is realized. During the operation of the deicing equipment, the wind speed, temperature, humidity and other meteorological data of the future preset period are obtained to predict the additional power generation of the wind turbine in the future preset period, and then the operation of the deicing equipment and the operation intensity are automatically adjusted to realize energy-saving and efficient control, and the stability and reliability are good, and the centralized control is beneficial, and unattended operation is realized. While the deicing control is performed, the data collection, analysis, arrangement and transmission are performed in all directions, for example, based on the SCADA system, the relevant data of the host and weather station are read to perform relevant calculation and processing, the real-time report and display of the key data such as the additional power generation and self-consumption power are realized, and the big data analysis of the deicing control problem is facilitated.

[0075] Based on the same inventive concept, an electronic device is also provided in an embodiment of the present application, which corresponds to the method of any of the above embodiments. The electronic device comprises a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the program, the wind power blade deicing control method of any of the above embodiments is realized.

[0076] Figure 3 A more specific electronic device hardware schematic diagram is shown, which can comprise a processor 100, a memory 200, an input / output interface 300, a communication interface 400 and a bus 500. The processor 100, the memory 200, the input / output interface 300 and the communication interface 400 are in communication connection with each other inside the device through the bus 500.

[0077] The processor 100 can be implemented by a general CPU (Central Processing Unit), a microprocessor, an application specific integrated circuit (ASIC), or one or more integrated circuits, etc., for executing related programs to realize the technical solutions provided by the embodiments of the present application.

[0078] The memory 200 can be implemented in the form of a ROM (Read Only Memory), a RAM (Random Access Memory), a static storage device, a dynamic storage device, etc. The memory 200 can store an operating system and other application programs, and when the technical solutions provided by the embodiments of the present application are implemented by software or firmware, the relevant program codes are stored in the memory 200 and are called and executed by the processor 100.

[0079] The input / output interface 300 is configured to connect an input / output module to realize information input and output. The input / output module can be configured in the device (not shown in the figure) or externally connected to the device to provide corresponding functions. The input device can include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device can include a display, a speaker, a vibrator, an indicator light, etc.

[0080] The communication interface 400 is configured to connect a communication module (not shown in the figure) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired manner (for example, a USB, a network cable, etc.) or through a wireless manner (for example, a mobile network, WIFI, Bluetooth, etc.).

[0081] The bus 500 includes a channel to transmit information between various components (for example, the processor 100, the memory 200, the input / output interface 300, and the communication interface 400) of the device.

[0082] It should be noted that although the above device only shows the processor 100, the memory 200, the input / output interface 300, the communication interface 400, and the bus 500, in the specific implementation process, the device can also include other components necessary for normal operation. In addition, those skilled in the art can understand that the above device can also only include the components necessary for implementing the embodiments of the present application, and does not have to include all the components shown in the figure.

[0083] Based on the same inventive concept, an embodiment of the present application also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the wind power blade anti-icing control method according to any one of the above embodiments.

[0084] The computer readable storage medium of the embodiments can include permanent and non-permanent, removable and non-removable media, which can realize information storage by any method or technology; the information can be computer readable instructions, data structures, program modules or other data. Examples of computer readable storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computer device.

[0085] The computer storage medium of the above embodiments stores a computer program for causing a computer to execute the wind power blade anti-icing control method according to any one of the above embodiments, and has the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0086] Those skilled in the art should understand that the above discussion of any of the embodiments is only exemplary and is not intended to imply that the scope of protection of the present application is limited to these examples; under the idea of the present application, the above embodiments or technical features in different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of one or more embodiments of the present application as described above. In order to be brief, they are not provided in details.

[0087] One or more embodiments of the present application are intended to cover all such alternatives, modifications and variations falling within the broad scope of the present application. Therefore, any omissions, modifications, equivalent replacements, improvements, etc. made in the spirit and principles of one or more embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A method of de-icing control of a wind turbine blade, characterized in that, The method comprises the following steps: acquiring meteorological data of the location of the wind turbine, and determining whether the wind turbine enters icing period from non-icing period or enters non-icing period from icing period according to the meteorological data; if it is determined that the wind turbine enters icing period from non-icing period, predicting the increased power generation of the wind turbine in a future first time period every preset time, and determining whether to start the anti-icing device according to the predicted increased power generation in the future first time period; during the operation of the anti-icing device, acquiring the wind turbine condition data and the meteorological data of the location every preset time, and controlling the operation of the anti-icing device according to the wind turbine condition data and the meteorological data, which comprises the following steps: during the operation of the anti-icing device, acquiring the icing condition of the blades of the wind turbine every preset time; if the icing condition of the blades of the wind turbine is non-icing, controlling the anti-icing device to start the anti-icing mode; if the icing condition of the blades of the wind turbine is icing, controlling the anti-icing device to start the de-icing mode; if the anti-icing device is in the anti-icing mode, acquiring the meteorological data of the location of the wind turbine every preset time, predicting the increased power generation of the wind turbine in a future third time period according to the wind speed data in the meteorological data, and controlling the anti-icing device to stop when the increased power generation is less than a second preset value; if the anti-icing device is in the de-icing mode, acquiring the meteorological data of the location of the wind turbine every preset time, predicting the increased power generation of the wind turbine in a future fourth time period according to the wind speed data in the meteorological data, and determining whether to stop the anti-icing device according to the increased power generation in the future fourth time period; the step of determining whether to stop the anti-icing device according to the increased power generation in the future fourth time period comprises the following steps: when the increased power generation is less than or equal to a third preset value, controlling the anti-icing device to stop; when the increased power generation is greater than a fourth preset value, acquiring the actual power generation of the wind turbine every preset time, and if the ratio of the actual power generation to the theoretical power generation of the wind turbine continuously decreases within the preset time, increasing the de-icing intensity of the anti-icing device to the maximum de-icing intensity on the premise that the increased power generation in the future fourth time period is greater than the fourth preset value; if the ratio of the actual power generation to the theoretical power generation of the wind turbine continuously decreases to below a fifth preset value within the preset time, controlling the anti-icing device to stop; if it is determined that the wind turbine enters non-icing period from icing period, acquiring the wind turbine condition data and the meteorological data of the location of the wind turbine in a future second time period, and determining whether to stop the anti-icing device according to the wind turbine condition data and the meteorological data.

2. The wind turbine blade de-icing control method of claim 1, wherein, the step of acquiring the meteorological data of the location of the wind turbine, and determining whether the wind turbine enters icing period from non-icing period or enters non-icing period from icing period according to the meteorological data comprises the following steps: acquiring the meteorological data of the location of the wind turbine from a wind farm meteorological station and / or a local meteorological department, wherein the meteorological data comprises temperature, humidity and wind speed; If the wind turbine is currently in the non-icing period, the temperature and the humidity satisfy the first preset condition and last at least a first preset time length, it is determined that the wind turbine enters the icing period from the non-icing period; If the wind turbine is currently in the icing period, the temperature and / or the humidity satisfy the second preset condition and last at least a second preset time length, it is determined that the wind turbine enters the non-icing period from the icing period.

3. The wind turbine blade de-icing control method of claim 1, wherein, If it is determined that the wind turbine enters the icing period from the non-icing period, the power generation increase of the wind turbine in a future first time period is predicted every preset time, and it is determined whether to start the anti-icing device according to the predicted power generation increase in the future first time period, including: If it is determined that the wind turbine enters the icing period from the non-icing period, the wind speed data in the meteorological data in a future first time period and the blade icing condition of the wind turbine are obtained every preset time, the predicted power generation of the wind turbine in the future first time period is predicted according to the wind speed data, the operation mode of the anti-icing device is determined according to the blade icing condition, and the predicted power consumption of the anti-icing device in the future first time period is predicted according to the operation mode; The predicted power generation is subtracted from the predicted power consumption to obtain the power generation increase, and the anti-icing device is determined to be started when the power generation increase is greater than a first preset value.

4. A wind turbine blade de-icing control method according to any of claims 1-3, wherein If it is determined that the wind turbine enters the non-icing period from the icing period, the wind turbine condition data and the meteorological data of the location of the wind turbine in a future second time period are obtained, and it is determined whether to close the anti-icing device according to the wind turbine condition data and the meteorological data, including: The blade icing condition of the wind turbine is obtained; If the blade icing condition of the wind turbine is not icing, the anti-icing device is controlled to be closed; If the blade icing condition of the wind turbine is icing, the power generation increase of the wind turbine in the future second time period under the natural ice melting condition and the power generation increase of the wind turbine in the future second time period under the ice melting condition by the anti-icing device are predicted according to the obtained meteorological data of the location of the wind turbine in the future second time period; if the power generation increase of the wind turbine under the natural ice melting condition is greater than or equal to the power generation increase of the wind turbine under the ice melting condition by the anti-icing device, the anti-icing device is controlled to be closed; if the power generation increase of the wind turbine under the natural ice melting condition is less than the power generation increase of the wind turbine under the ice melting condition by the anti-icing device, the anti-icing device is controlled to be operated until the wind turbine completes ice melting and the anti-icing device is controlled to be closed.

5. A method of de-icing control of a wind turbine blade according to any of the claims 1-3, wherein The power generation increase of the wind turbine in a future third time period is predicted according to the wind speed data in the meteorological data, including: The predicted power generation of the wind turbine in the future third time period is predicted according to the wind speed data; The predicted power generation of the wind turbine in the future third time period is compared with the predicted power consumption of the anti-icing device in the future third time period in the anti-icing mode; The power generation increase of the wind turbine in the future third time period is obtained by subtracting the predicted power consumption in the future third time period from the predicted power generation in the future third time period.

6. A wind turbine blade de-icing control system employing the wind turbine blade de-icing control method according to any one of claims 1-5, characterized in that, including: The unit state judgment module is configured to acquire meteorological data of a location of the wind turbine generator, and determine whether the wind turbine generator is in a non-icing period or an icing period according to the meteorological data; The opening de-icing control module is configured to, if it is determined that the wind turbine generator is in the non-icing period, predict an increased power generation of the wind turbine generator in a future first time period every preset time, and determine whether to open the anti-icing device according to the predicted increased power generation in the future first time period; The de-icing operation control module is configured to, during the opening of the anti-icing device, collect the wind turbine generator condition data and the meteorological data of the location every preset time, and control operation of the anti-icing device according to the wind turbine generator condition data and the meteorological data; The closing de-icing control module is configured to, if it is determined that the wind turbine generator is in the icing period, acquire the wind turbine generator condition data and the meteorological data of the location of the wind turbine generator in a future second time period, and determine whether to close the anti-icing device according to the wind turbine generator condition data and the meteorological data.

7. An electronic device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, characterized in that, The processor executes the computer program to implement the method of any one of claims 1 to 5.

8. A computer-readable storage medium having stored thereon a computer program, characterized in that, The computer program is executed by the processor to implement the method of any one of claims 1 to 5.

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