Dynamic control method and device for power of wind turbine generator, electronic equipment and medium

Abstract

The invention provides a wind turbine generator power dynamic control method and device, electronic equipment and a storage medium, and relates to the technical field of wind turbine generators, and the method comprises the steps: obtaining target operation data of a wind power plant unit, and carrying out the preprocessing of the target operation data, the target operation data comprises a generator temperature value and a converter temperature value; according to the target operation data and a preset temperature threshold value, whether limited power is triggered or not is judged; if the limited power is triggered, determining a limited power value; and performing fault protection on the wind power plant unit according to the limited power value and the power fault threshold value. A flexible power control mode is adopted, a power value is dynamically controlled based on the temperature of a large component, and compared with a traditional fixed value or table look-up power reduction control strategy, the temperature level of the large components of a generator and a converter can be more accurately controlled.

Description

Technical Field

[0001] The present disclosure relates to the technical field of wind turbines, and in particular to a method, device, electronic equipment and storage medium for dynamic power control of a wind turbine. Background Art

[0002] The temperature of large components of wind turbines is an important indicator for judging whether the components are operating normally. Therefore, wind turbines have multiple measuring points for monitoring the temperature of large components. Among them, there are two most important temperature components that are strongly related to power generation: one is the converter system, and the other is the generator system.

[0003] When the temperature of these two key components exceeds the limit, in order to ensure the safety of the large components, the unit needs to be controlled to limit power. Usually the algorithm is to determine the power reduction value based on a fixed temperature. For example, when the temperature of the large components of the generator rises to 120°C, the power is reduced and the power is limited to 90% PN (PN refers to the rated power). If the temperature is still effectively controlled after a period of limitation, it is reduced to 80% PN, etc. There are similar limiting methods for converter equipment.

[0004] However, the current power limiting algorithm is not intelligent. It only uses a simple threshold or table lookup method to determine the power limit, and the limited power remains fixed for a certain period of time. If the power limit value is set too large, it will lead to power generation loss; if the power limit value is too small, it will cause the unit temperature to continue to rise, resulting in fault shutdown. Summary of the invention

[0005] The present disclosure proposes a method, device, electronic device and storage medium for dynamic power control of a wind turbine generator set, aiming to solve one of the technical problems in the related art at least to a certain extent.

[0006] The first embodiment of the present disclosure provides a method for dynamically controlling power of a wind turbine generator set, comprising:

[0007] Acquire target operation data of the wind farm units, and preprocess the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value;

[0008] Determining whether to trigger power limiting according to the target operating data and a preset temperature threshold;

[0009] If the power limit is triggered, the power limit value is determined;

[0010] The wind farm units are protected from faults according to the power limit value and the power fault threshold.

[0011] The second embodiment of the present disclosure provides a wind turbine generator set power dynamic control device, comprising:

[0012] An acquisition module, used for acquiring target operation data of wind farm units and preprocessing the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value;

[0013] A judgment module, used to judge whether to trigger power limiting according to the target operation data and a preset temperature threshold;

[0014] A determination module, used to determine a power limit value if the power limit is triggered;

[0015] A fault protection module is used to perform fault protection on the wind farm units according to the power limit value and the power fault threshold.

[0016] An embodiment of the third aspect of the present disclosure proposes an electronic device, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, and the instructions are executed by the at least one processor so that the at least one processor can execute the method for dynamic control of wind turbine power of the embodiment of the present disclosure.

[0017] The fourth aspect of the present disclosure provides a non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable the computer to execute the wind turbine power dynamic control method disclosed in the embodiment of the present disclosure.

[0018] A fifth aspect of the present disclosure provides a computer program product, which, when executed by a processor, performs the method for dynamic control of wind turbine power disclosed in the embodiment of the present disclosure.

[0019] In the disclosed embodiment, the target operation data of the wind farm unit is first obtained, and the target operation data is preprocessed, wherein the target operation data contains the temperature value of the generator and the temperature value of the converter, and then, according to the target operation data and the preset temperature threshold, it is determined whether the power limit is triggered, and then if the power limit is triggered, the power limit value is determined, and finally, according to the power limit value and the power fault threshold, the wind farm unit is fault protected. Thus, a flexible power control method is adopted, and the power value is dynamically controlled based on the temperature of the large component. Compared with the traditional fixed value or table-based power reduction control strategy, the temperature level of the large components of the generator and converter can be more accurately controlled, and there will be no power generation loss caused by power over-control or unit failure shutdown due to insufficient control. In order to avoid covering up the real component abnormality due to power reduction, the temperature and power over-limit protection function is added, that is, after the power is reduced to a certain level and lasts for a certain period of time, if the temperature is still out of control, a protection shutdown will be performed, prompting the on-site personnel to check the abnormal temperature of the large component.

[0020] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description or learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present disclosure will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0022] Figure 1 is a schematic flow chart of a method for dynamically controlling wind turbine power according to a first embodiment of the present disclosure;

[0023] Figure 2 is a flow chart of a wind turbine power dynamic control algorithm according to an embodiment of the present disclosure;

[0024] Figure 3 A flow chart of a data cleaning module, a dynamic power limiting module and a fault protection module proposed in an embodiment of the present disclosure;

[0025] Figure 4 is a schematic diagram of a wind turbine generator system power dynamic control device according to an embodiment of the present disclosure;

[0026] Figure 5 The block diagram is a block diagram of an electronic device used to implement the method for dynamically controlling wind turbine power according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0027] Embodiments of the present disclosure are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present disclosure, and are not to be construed as limitations of the present disclosure. On the contrary, the embodiments of the present disclosure include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0028] It should be noted that the current hailstorm disaster weather is relatively small in scope, short in duration, and highly sudden, which makes it difficult to warn and forecast in actual meteorological operations. The current prediction of hail mainly relies on manual identification of radar products, which places a heavy workload on forecasters and cannot guarantee the timeliness of hail forecasts.

[0029] It should be noted that the executor of the wind turbine power dynamic control method of this embodiment can be a wind turbine power dynamic control device, which can be implemented by software and / or hardware. The device can be configured in any electronic device, or it can also be a server, which is not limited here.

[0030] In the embodiments of the present disclosure, the wind turbine generator set power dynamic control method will be described by taking the “wind turbine generator set power dynamic control device” as the execution subject, and no limitation is made herein.

[0031] Figure 1 FIG. 1 is a flow chart of a method for dynamically controlling wind turbine power according to a first embodiment of the present disclosure. Figure 1 As shown, the method includes:

[0032] S101: Acquire target operation data of wind farm units and pre-process the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value.

[0033] The target operation data may be key data of the operation of the wind farm units, such as the power measurement value of the units, the temperature value of the generator, the temperature value of the converter, etc., which are not limited here.

[0034] Specifically, the main control PLC of the unit can be used for real-time data collection with a sampling interval of 20 milliseconds to obtain the key operating data of the unit. Afterwards, the collected data can be extracted, mainly including power measurement values, generator temperature values, converter temperature values ​​and other parameters related to the control algorithm.

[0035] The sampling interval is set to 20 milliseconds, which means that the key parameters of the unit will be sampled once every 20 milliseconds to ensure high-frequency data and accurate understanding of the unit status.

[0036] Then, the data is filtered and a low-pass filter is used to remove the sudden changes in temperature and power to prevent sudden fluctuations from causing abnormal judgments in the later stage. The extracted data is filtered using a low-pass filter. A low-pass filter is a signal processing technique used to remove high-frequency noise and sudden changes in order to retain the low-frequency components in the signal. In this case, the purpose of the filtering process is to remove sudden changes in temperature and power to reduce errors in subsequent abnormal judgments.

[0037] This ensures that the monitoring system can accurately and timely obtain the key operating data of the unit and process it reasonably for subsequent status judgment and abnormality detection.

[0038] Optionally, the target operating data may be filtered, and the generator temperature data sequence and the converter temperature data sequence included in the processed target operating data may be subjected to sliding average processing.

[0039] Specifically, the processed generator temperature data series and converter temperature data series can be subjected to sliding average processing. Sliding average is a method of smoothing data. By averaging the data within a time window, the volatility of the data can be reduced, making the data more continuous and stable.

[0040] For example, the slip time reference value can be set within the range of 1 minute to 10 minutes. This means that each time the data is taken, the data from the previous 1 minute to 10 minutes will be considered to calculate the average value. This time range can be adjusted according to the specific situation to meet the requirements for data smoothness and response speed.

[0041] S102: Determine whether to trigger power limiting based on target operating data and a preset temperature threshold.

[0042] Optionally, the preset temperature thresholds include a first generator control temperature threshold, a second generator control temperature threshold, a first converter control temperature threshold, and a second converter control temperature threshold.

[0043] The first generator control temperature threshold is greater than the second generator control temperature threshold, and the first converter control temperature threshold is greater than the second converter control temperature threshold.

[0044] Optionally, when the generator temperature value is greater than a first generator control temperature threshold, and the duration of being greater than the first generator control temperature threshold exceeds a first time period, it is determined that the generator temperature power limit is triggered.

[0045] Optionally, when the converter temperature value is greater than a first converter control temperature threshold, and the duration of being greater than the first converter control temperature threshold exceeds a second time period, it is determined that converter temperature power limiting is triggered.

[0046] Optionally, when the generator temperature value is greater than the second generator control temperature threshold, and the duration of being greater than the second generator control temperature threshold exceeds a third time period, it is determined that the generator temperature power limit is not triggered.

[0047] Optionally, when the converter temperature value is greater than the second converter control temperature threshold, and the duration of being greater than the second converter control temperature threshold exceeds a fourth time period, it is determined that the converter temperature power limit is not triggered.

[0048] The lengths of the first time period, the second time period, the third time period and the fourth time period may be the same or different, which is not limited here.

[0049] For example, for the generator temperature power limit start judgment:

[0050] When the generator temperature exceeds the first generator control temperature threshold (VTg1) and lasts for a first time period (Timeg1), the generator temperature is considered to be too high, and the generator temperature power limit will be triggered, with the flag FlagPlimtg=1.

[0051] When the generator temperature returns to the normal range (lower than the second generator control temperature threshold VTg2) and lasts for a third time period (Timeg2), it is considered that the generator temperature has returned to normal, the power limit protection is released, and the flag FlagPlimtg=0.

[0052] For example, for the inverter temperature power limit startup judgment:

[0053] When the converter temperature exceeds the first converter control temperature threshold (VTc1) and lasts for a second time period (Timec1), the converter temperature is considered to be too high, and the converter temperature power limit is triggered, with the flag FlagPlimtc=1.

[0054] When the converter temperature returns to the normal range (lower than the second converter control temperature threshold VTc2) and lasts for a fourth time period (Timec2), it is considered that the converter temperature returns to normal, the power limit protection is released, and the flag FlagPlimtc=0.

[0055] For example, the first generator control temperature threshold may be 120°C, 119°C, 125°C, etc., which may be determined based on actual experience and is not limited here. The second generator control temperature threshold may be 100°C, 109°C, 105°C, etc., which may be determined based on actual experience and is not limited here.

[0056] S103: If the power limit is triggered, determine the power limit value.

[0057] Optionally, if the generator temperature power limit is triggered, the generator temperature power limit is determined based on the unit rated power, the second generator control temperature threshold, the generator temperature value and the generator temperature control parameter.

[0058] Specifically, if FlagPlimtg = 1, it means that the generator temperature power limit is triggered, and the generator temperature power limit PLimtg can be calculated according to the following formula: i :

[0059] PLimtg i =PN-(Kpg+Kig×Z -1 )×(Tgi-VTg2)

[0060] Among them, at this time the unit power limit PLimti=PLimtg i .

[0061] Among them, PN is the rated power of the unit, Kpg and Kig are both generator temperature control parameters, Tgi is the generator temperature value, and VTg2 is the second generator control temperature threshold.

[0062] Optionally, if the converter temperature power limit is triggered, the converter temperature power limit is determined according to the unit rated power, the second converter control temperature threshold, the converter temperature value and the converter temperature control parameter.

[0063] Specifically, if FlagPlimtc=1, it means that the converter temperature limit power is triggered, and the converter temperature limit power PLimtc can be calculated according to the following formula: i :

[0064] PLimtc i =PN-(Kpc+Kic×Z -1 )×(Tci-VTc2)

[0065] Where PN is the rated power of the unit, Kpc and Kic are both converter temperature control parameters, Tgi is the converter temperature value, VTc2 is the second converter control temperature threshold, where the unit power limit PLimti = PLimtc i .

[0066] Optionally, if the generator temperature power limit and the converter temperature power limit are triggered simultaneously, the power limit value is determined to be the minimum value of the generator temperature power limit and the converter temperature power limit.

[0067] Specifically, when FlagPlimtg and FlagPlimtc are triggered at the same time, that is, when the generator temperature power limit and the converter temperature power limit are triggered at the same time, the minimum power limit can be obtained.

[0068] PLimti=MIN(PLimtg i ,PLimtc i )

[0069] Among them, PLimtg i is the generator temperature power limit, PLimtc i is the converter temperature power limit.

[0070] S104: Perform fault protection on wind farm units according to the power limit value and the power fault threshold.

[0071] Optionally, when the generator temperature power limit exceeds the generator power fault threshold and the time exceeding the generator power fault threshold is greater than the fifth time period, the fault of the wind farm unit is determined to be: the generator temperature continues to be high under power limit, and shutdown protection is performed.

[0072] When the generator temperature power limit exceeds the generator power fault threshold (Vtgf) and lasts for a fifth time period (Timegf), a "generator temperature continues to be high under power limit" fault is reported.

[0073] Optionally, when the converter temperature power limit exceeds the converter power fault threshold, and the time exceeding the converter power fault threshold is greater than the sixth time period, the fault of the wind farm unit is determined to be: the converter temperature remains high under power limit, and shutdown protection is performed.

[0074] When the converter temperature power limit exceeds the converter power fault threshold (Vtcf) and lasts for a sixth time period (Timecf), a "converter temperature continues to be high under power limit" fault is reported.

[0075] Wherein, Vtgf and Vtcf are respectively the generator power fault threshold and the converter power fault threshold, and a PN value of (40%-70%) can be selected.

[0076] When the above conditions are triggered, it means that the temperature of the generator or converter is continuously too high, resulting in the inability of the power limit protection to effectively control the temperature. This may indicate that there is a problem with a large component, so a fault shutdown is required, and the on-site personnel are prompted to check the large component. If the above power limit value lasts for a certain period of time and the power limit value is lower than a certain value, it means that the power limit itself can no longer control the temperature of the generator or converter, so there is a certain problem with the large component. Through judgment, a fault shutdown is performed, and the on-site personnel are prompted to check the large component.

[0077] In the disclosed embodiment, the target operation data of the wind farm unit is first obtained, and the target operation data is preprocessed, wherein the target operation data contains the temperature value of the generator and the temperature value of the converter, and then, according to the target operation data and the preset temperature threshold, it is determined whether the power limit is triggered, and then if the power limit is triggered, the power limit value is determined, and finally, according to the power limit value and the power fault threshold, the wind farm unit is fault protected. Thus, a flexible power control method is adopted, and the power value is dynamically controlled based on the temperature of the large component. Compared with the traditional fixed value or table-based power reduction control strategy, the temperature level of the large components of the generator and converter can be more accurately controlled, and there will be no power generation loss caused by power over-control or unit failure shutdown due to insufficient control. In order to avoid covering up the real component abnormality due to power reduction, the temperature and power over-limit protection function is added, that is, after the power is reduced to a certain level and lasts for a certain period of time, if the temperature is still out of control, a protection shutdown will be performed, prompting the on-site personnel to check the abnormal temperature of the large component.

[0078] Figure 2 It is a flow chart of a wind turbine power dynamic control algorithm according to an embodiment of the present disclosure.

[0079] The control algorithm for flexible power limit adjustment proposed in the present disclosure can accurately control the temperature of large components to ensure that it is controlled within a safe range, and establish a protection mechanism. When the power is limited to a certain level, if the temperature is still difficult to control, a fault alarm is issued and shutdown protection is executed. The control algorithm can flexibly control the temperature of components within a safe range, minimize power generation losses and unnecessary shutdown conditions, reduce fault time, and ensure the power generation performance of the unit.

[0080] Figure 3 This is a flow chart of the data cleaning module, dynamic power limiting module and fault protection module proposed in the embodiment of the present disclosure.

[0081] In the disclosed embodiment, real-time data collected from the fan main control system PLC, including the real-time measurement value of the unit's ambient temperature, power measurement value, generator temperature value, and converter temperature value, are used as input to the flexible power control module after filtering and sliding translation; a flexible power control algorithm is set in the control module, the core of which is to ensure that the temperature of the generator and converter major components does not exceed the limit, and the unit outputs as much power as possible. At the same time, the temperature is judged in real time, and shutdown protection is performed once the requirements are met.

[0082] Figure 4 Schematic diagram of a wind turbine generator system power dynamic control device according to an embodiment of the present disclosure.

[0083] like Figure 4 As shown, the wind turbine generator set power dynamic control device 300 includes:

[0084] An acquisition module 310 is used to acquire target operation data of wind farm units and pre-process the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value;

[0085] A judgment module 320, configured to judge whether to trigger power limiting according to the target operation data and a preset temperature threshold;

[0086] A determination module 330, configured to determine a power limit value if power limit is triggered;

[0087] The fault protection module 340 is used to perform fault protection on the wind farm units according to the power limit value and the power fault threshold.

[0088] Optionally, the acquisition module is specifically used to:

[0089] The target operation data is filtered, and the generator temperature data sequence and the converter temperature data sequence included in the processed target operation data are subjected to sliding average processing.

[0090] Optionally, the preset temperature threshold includes a first generator control temperature threshold, a second generator control temperature threshold, a first converter control temperature threshold, and a second converter control temperature threshold, wherein the first generator control temperature threshold is greater than the second generator control temperature threshold, and the first converter control temperature threshold is greater than the second converter control temperature threshold,

[0091] The judgment module is specifically used for:

[0092] When the generator temperature value is greater than the first generator control temperature threshold, and the duration of being greater than the first generator control temperature threshold exceeds a first time period, it is determined that the generator temperature power limit is triggered;

[0093] When the converter temperature value is greater than the first converter control temperature threshold, and the duration of being greater than the first converter control temperature threshold exceeds a second time period, it is determined that the converter temperature power limit is triggered;

[0094] When the generator temperature value is greater than the second generator control temperature threshold, and the duration of being greater than the second generator control temperature threshold exceeds a third time period, it is determined that the generator temperature power limit is not triggered;

[0095] When the converter temperature value is greater than the second converter control temperature threshold, and the duration of being greater than the second converter control temperature threshold exceeds a fourth time period, it is determined that converter temperature power limiting is not triggered.

[0096] Optionally, the determining module 330 is specifically configured to:

[0097] If the generator temperature power limit is triggered, the generator temperature power limit is determined according to the unit rated power, the second generator control temperature threshold, the generator temperature value and the generator temperature control parameter;

[0098] Alternatively, if the converter temperature power limit is triggered, the converter temperature power limit is determined according to the unit rated power, the second converter control temperature threshold, the converter temperature value and the converter temperature control parameter;

[0099] or,

[0100] If the generator temperature power limit and the converter temperature power limit are triggered simultaneously, the power limit value is determined as the minimum value of the generator temperature power limit and the converter temperature power limit.

[0101] Optionally, the fault protection module 340 is specifically configured to:

[0102] When the generator temperature power limit exceeds the generator power fault threshold, and the time of exceeding the generator power fault threshold is greater than the fifth time period, it is determined that the fault of the wind farm unit is: the generator temperature is continuously high under power limit, and shutdown protection is performed;

[0103] or,

[0104] When the converter temperature power limit exceeds the converter power fault threshold, and the time exceeding the converter power fault threshold is greater than the sixth time period, the fault of the wind farm unit is determined as: the converter temperature continues to be high under power limit, and shutdown protection is performed.

[0105] In the disclosed embodiment, the target operation data of the wind farm unit is first obtained, and the target operation data is preprocessed, wherein the target operation data contains the temperature value of the generator and the temperature value of the converter, and then, according to the target operation data and the preset temperature threshold, it is determined whether the power limit is triggered, and then if the power limit is triggered, the power limit value is determined, and finally, according to the power limit value and the power fault threshold, the wind farm unit is fault protected. Thus, a flexible power control method is adopted, and the power value is dynamically controlled based on the temperature of the large component. Compared with the traditional fixed value or table-based power reduction control strategy, the temperature level of the large components of the generator and converter can be more accurately controlled, and there will be no power generation loss caused by power over-control or unit failure shutdown due to insufficient control. In order to avoid covering up the real component abnormality due to power reduction, the temperature and power over-limit protection function is added, that is, after the power is reduced to a certain level and lasts for a certain period of time, if the temperature is still out of control, a protection shutdown will be performed, prompting the on-site personnel to check the abnormal temperature of the large component.

[0106] According to an embodiment of the present disclosure, the present disclosure also provides an electronic device, a readable storage medium and a computer program product.

[0107] Figure 5 A block diagram of an exemplary computer device suitable for implementing embodiments of the present disclosure is shown. Figure 5 The computer device 12 shown is only an example and should not bring any limitation to the functions and scope of use of the embodiments of the present disclosure.

[0108] like Figure 5 As shown, the computer device 12 is in the form of a general-purpose computing device. The components of the computer device 12 may include, but are not limited to: one or more processors or processing units 16, a system memory 28, and a bus 18 that connects various system components (including the system memory 28 and the processing unit 16).

[0109] The bus 18 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a graphics acceleration port, a processor or a local bus using any of a variety of bus structures. For example, these architectures include but are not limited to Industry Standard Architecture (ISA) bus, Micro Channel Architecture (MAC) bus, Enhanced ISA bus, Video Electronics Standards Association (VESA) local bus and Peripheral Component Interconnection (PCI) bus.

[0110] The computer device 12 typically includes a variety of computer system readable media. These media can be any available media that can be accessed by the computer device 12, including volatile and non-volatile media, removable and non-removable media.

[0111] The memory 28 may include computer system readable media in the form of volatile memory, such as random access memory (RAM) 30 and / or cache memory 32. The computer device 12 may further include other removable / non-removable, volatile / non-volatile computer system storage media. By way of example only, the storage system 34 may be used to read and write non-removable, non-volatile magnetic media ( Figure 5 Not shown, often called a "hard drive").

[0112] although Figure 5 Not shown in the figure, a disk drive for reading and writing a removable non-volatile disk (e.g., a "floppy disk"), and an optical disk drive for reading and writing a removable non-volatile optical disk (e.g., a compact disc read only memory (CD-ROM), a digital versatile disc read only memory (DVD-ROM), or other optical media) may be provided. In these cases, each drive may be connected to the bus 18 via one or more data medium interfaces. The memory 28 may include at least one program product having a set (e.g., at least one) of program modules configured to perform the functions of the various embodiments of the present disclosure.

[0113] A program / utility 40 having a set (at least one) of program modules 42 may be stored, for example, in the memory 28, such program modules 42 including but not limited to an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment. The program modules 42 generally perform the functions and / or methods of the embodiments described in the present disclosure.

[0114] The computer device 12 may also communicate with one or more external devices 14 (e.g., keyboard, pointing device, display 24, etc.), one or more devices that enable a user to interact with the computer device 12, and / or any device that enables the computer device 12 to communicate with one or more other computing devices (e.g., network card, modem, etc.). Such communication may be performed via an input / output (I / O) interface 22. In addition, the computer device 12 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 20. As shown, the network adapter 20 communicates with other modules of the computer device 12 via a bus 18. It should be understood that, although not shown in the figure, other hardware and / or software modules may be used in conjunction with the computer device 12, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0115] The processing unit 16 executes various functional applications and data processing by running the programs stored in the system memory 28 , for example, implementing the wind turbine power dynamic control method mentioned in the above embodiment.

[0116] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the applications disclosed herein. The present disclosure is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0117] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

[0118] It should be noted that, in the description of the present disclosure, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in the description of the present disclosure, unless otherwise specified, the meaning of "plurality" is two or more.

[0119] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present disclosure includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present disclosure belong.

[0120] It should be understood that the various parts of the present disclosure can be implemented in hardware, software, firmware or a combination thereof. In the above-mentioned embodiments, multiple steps or methods can be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one of the following technologies known in the art or their combination: a discrete logic circuit having a logic gate circuit for implementing a logic function for a data signal, a dedicated integrated circuit having a suitable combination of logic gate circuits, a programmable gate array (PGA), a field programmable gate array (FPGA), etc.

[0121] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0122] In addition, each functional unit in each embodiment of the present disclosure may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may also be stored in a computer-readable storage medium. The above-mentioned storage medium may be a read-only memory, a disk or an optical disk, etc.

[0123] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0124] Although the embodiments of the present disclosure have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present disclosure. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present disclosure.

Claims

1. A method for dynamic power control of a wind turbine generator set, characterized in that: include: Acquire target operation data of the wind farm units, and preprocess the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value; Determining whether to trigger power limiting according to the target operating data and a preset temperature threshold; If the power limit is triggered, the power limit value is determined; The wind farm units are protected from faults according to the power limit value and the power fault threshold.

2. The method according to claim 1, characterized in that The preprocessing of the target operation data includes: The target operation data is filtered, and the generator temperature data sequence and the converter temperature data sequence included in the processed target operation data are subjected to sliding average processing.

3. The method according to claim 1, characterized in that in, The preset temperature thresholds include a first generator control temperature threshold, a second generator control temperature threshold, a first converter control temperature threshold, and a second converter control temperature threshold, wherein the first generator control temperature threshold is greater than the second generator control temperature threshold, and the first converter control temperature threshold is greater than the second converter control temperature threshold, The determining whether to trigger power limiting according to the target operating data and a preset temperature threshold comprises: When the generator temperature value is greater than the first generator control temperature threshold, and the duration of being greater than the first generator control temperature threshold exceeds a first time period, it is determined that the generator temperature power limit is triggered; When the converter temperature value is greater than the first converter control temperature threshold, and the duration of being greater than the first converter control temperature threshold exceeds a second time period, it is determined that the converter temperature power limit is triggered; When the generator temperature value is greater than the second generator control temperature threshold, and the duration of being greater than the second generator control temperature threshold exceeds a third time period, it is determined that the generator temperature power limit is not triggered; When the converter temperature value is greater than the second converter control temperature threshold, and the duration of being greater than the second converter control temperature threshold exceeds a fourth time period, it is determined that converter temperature power limiting is not triggered.

4. The method according to claim 3, characterized in that If the power limit is triggered, determining the power limit value includes: If the generator temperature power limit is triggered, the generator temperature power limit is determined according to the unit rated power, the second generator control temperature threshold, the generator temperature value and the generator temperature control parameter; Alternatively, if the converter temperature power limit is triggered, the converter temperature power limit is determined according to the unit rated power, the second converter control temperature threshold, the converter temperature value and the converter temperature control parameter; or, If the generator temperature power limit and the converter temperature power limit are triggered simultaneously, the power limit value is determined as the minimum value of the generator temperature power limit and the converter temperature power limit.

5. The method according to claim 4, characterized in that The step of performing fault protection on the wind farm unit according to the power limit value and the power fault threshold comprises: When the generator temperature power limit exceeds the generator power fault threshold, and the time of exceeding the generator power fault threshold is greater than the fifth time period, it is determined that the fault of the wind farm unit is: the generator temperature is continuously high under power limit, and shutdown protection is performed; or, When the converter temperature power limit exceeds the converter power fault threshold, and the time exceeding the converter power fault threshold is greater than the sixth time period, the fault of the wind farm unit is determined as: the converter temperature continues to be high under power limit, and shutdown protection is performed.

6. A wind turbine power dynamic control device, characterized in that: include: An acquisition module, used for acquiring target operation data of wind farm units and preprocessing the target operation data, wherein the target operation data includes a generator temperature value and a converter temperature value; A judgment module, used to judge whether to trigger power limiting according to the target operation data and a preset temperature threshold; A determination module, used to determine a power limit value if the power limit is triggered; A fault protection module is used to perform fault protection on the wind farm units according to the power limit value and the power fault threshold.

7. The device according to claim 6, characterized in that The acquisition module is specifically used for: The target operation data is filtered, and the generator temperature data sequence and the converter temperature data sequence included in the processed target operation data are subjected to sliding average processing.

8. The device according to claim 6, characterized in that in, The preset temperature thresholds include a first generator control temperature threshold, a second generator control temperature threshold, a first converter control temperature threshold, and a second converter control temperature threshold, wherein the first generator control temperature threshold is greater than the second generator control temperature threshold, and the first converter control temperature threshold is greater than the second converter control temperature threshold, The judgment module is specifically used for: When the generator temperature value is greater than the first generator control temperature threshold, and the duration of being greater than the first generator control temperature threshold exceeds a first time period, it is determined that the generator temperature power limit is triggered; When the converter temperature value is greater than the first converter control temperature threshold, and the duration of being greater than the first converter control temperature threshold exceeds a second time period, it is determined that the converter temperature power limit is triggered; When the generator temperature value is greater than the second generator control temperature threshold, and the duration of being greater than the second generator control temperature threshold exceeds a third time period, it is determined that the generator temperature power limit is not triggered; When the converter temperature value is greater than the second converter control temperature threshold, and the duration of being greater than the second converter control temperature threshold exceeds a fourth time period, it is determined that converter temperature power limiting is not triggered.

9. An electronic device, comprising: at least one processor; as well as a memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor, and the instructions are executed by the at least one processor to enable the at least one processor to perform the method according to any one of claims 1 to 5.

10. A non-transitory computer-readable storage medium storing computer instructions, wherein: The computer instructions are used to cause the computer to execute the method according to any one of claims 1-5.

Images