Transformer for wind power and operation control method, device and storage medium thereof

Abstract

The application relates to a transformer for wind power and a running control method, equipment and storage medium thereof, and comprises the following steps: obtaining a consumption capacity feedback; evaluating historical load of the transformer for wind power; determining a running mode of the transformer for wind power according to the consumption capacity feedback and the historical load; and controlling the running of the transformer for wind power according to the running mode. The transformer running control method balances the contradiction between the transformer self-loss and the power grid power abandonment, and simplifies the running control of the transformer for wind power in cooperation with the running mode, facilitates the management of the transformer for a large amount of wind power, and is combined with the design of the historical load, is beneficial to reducing the load degree of the transformer for wind power, reduces the oil temperature of the transformer for wind power, prolongs the normal service life of the transformer for wind power, and greatly avoids the power abandonment problem caused by insufficient consumption capacity; and is suitable for the running control of the transformer for land wind power and the running control of the transformer for offshore wind power.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of transformer control for wind power, in particular to a transformer for wind power and an operation control method, device and storage medium thereof, in particular to a transformer for wind power, an operation control method of the transformer for wind power, an electronic device and a computer readable storage medium. BACKGROUND

[0002] Land wind power has been widely used, while offshore wind power is not affected by terrain and has higher wind speed and richer wind energy resources, and the wind power efficiency is higher than that of land wind power, so it is being developed and applied.

[0003] The patent document with publication number CN104868467A discloses a transformer economic operation control system and method, which comprises a data acquisition module, a first processing module, a first data transmission module, a second data transmission module, a second processing module and a control module. The control module confirms whether the current operation mode of the transformer is consistent with the economic operation mode of the transformer obtained by analysis, and if not, generates and sends a control instruction to start the economic operation mode of the transformer obtained by analysis. The embodiment of the present application collects the voltage, current data of the transformer load side, transformer switch and bus coupler switch data in real time, embeds the current time information, and timely calculates and analyzes the technical means of automatically starting the economic operation mode of the transformer according to the needs, so as to achieve the technical effects of automatic switching, strong applicability and wide application.

[0004] However, both land wind power and offshore wind power have encountered the problem of power curtailment due to insufficient consumption capacity. On the one hand, the transformer itself has a loss, and on the other hand, the power grid has power curtailment, so operation control is needed, but the above-mentioned patent document fails to solve this problem. SUMMARY

[0005] Therefore, it is necessary to provide a transformer for wind power and an operation control method, device and storage medium thereof.

[0006] An operation control method of a transformer for wind power, comprising the steps of:

[0007] obtaining consumption capacity feedback;

[0008] evaluating historical load of the transformer for wind power;

[0009] determining an operation mode of the transformer for wind power according to the consumption capacity feedback and the historical load;

[0010] controlling operation of the transformer for wind power according to the operation mode.

[0011] The wind power transformer operation control method balances the contradiction between transformer self-loss and grid abandoned power, simplifies the operation control of the wind power transformer in cooperation with the operation mode, facilitates the management of the transformer for a large amount of wind power, and is conducive to reducing the load degree of the wind power transformer due to the combination of the historical load design, thereby reducing the oil temperature of the wind power transformer, prolonging the normal service life of the wind power transformer, and greatly avoiding the problem of abandoned power due to insufficient accommodation capacity; it is suitable for operation control of both land wind power transformers and offshore wind power transformers.

[0012] In one of the embodiments, before determining the operation mode of the wind power transformer, the wind power transformer operation control method further comprises the steps of: analyzing the oil temperature change condition of the wind power transformer; and,

[0013] According to the accommodation capacity feedback, the historical load and the oil temperature change condition, the operation mode of the wind power transformer is determined.

[0014] In one of the embodiments, when the accommodation capacity feedback is obtained, a first time curve of the accommodation capacity is generated;

[0015] When the historical load of the wind power transformer is evaluated, a second time curve of the historical load is generated; and,

[0016] The first time curve and the second time curve are compared to determine the operation mode of the wind power transformer.

[0017] In one of the embodiments, the wind power transformer operation control method further comprises the steps of: analyzing the oil temperature change condition of the wind power transformer, generating a third time curve of the oil temperature change; and,

[0018] The first time curve, the second time curve and the third time curve are compared to determine the operation mode of the wind power transformer.

[0019] In one of the embodiments, before evaluating the historical load of the wind power transformer, the wind power transformer operation control method further comprises the steps of: according to the power consumption condition of the wind power transformer, pre-setting at least two operation modes; and,

[0020] According to the accommodation capacity feedback and the historical load, one operation mode of the wind power transformer is selected.

[0021] In one of the embodiments, after obtaining the accommodation capacity feedback, the wind power transformer operation control method further comprises the steps of: analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods include hours, days, weeks, tens of days, months, seasons, half a year and a year; and / or,

[0022] evaluate the historical load of the wind power transformer according to the wind power peak period, the wind power valley period, the load peak period and the load valley period; and / or,

[0023] The wind power transformer is multiple in number, and each of the wind power transformers is provided with an operation mode.

[0024] In one of the embodiments, when the wind power transformer is controlled according to the operation mode, the wind power transformer operation control method further comprises the steps of:

[0025] acquiring the power demand;

[0026] determining whether the current operation mode meets the power demand, and if yes, maintaining the current operation mode, and if not, adjusting the operation mode of the wind power transformer.

[0027] In one of the embodiments, a wind power transformer comprises:

[0028] an acquisition module configured to acquire the consumption capacity feedback;

[0029] an evaluation module configured to evaluate the historical load of the wind power transformer;

[0030] an analysis module configured to determine the operation mode of the wind power transformer according to the consumption capacity feedback and the historical load; and

[0031] a control module configured to control the operation of the wind power transformer according to the operation mode.

[0032] In one of the embodiments, an electronic device comprises a memory and a processor, the memory stores a computer program, and the processor implements the steps of any of the wind power transformer operation control methods when executing the computer program.

[0033] In one of the embodiments, a computer readable storage medium stores a computer program, and the computer program is executed by a processor to implement the steps of any of the wind power transformer operation control methods. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0035] Figure 1 It is a flowchart of an embodiment of the wind power transformer operation control method of the present application.

[0036] Figure 2 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0037] Figure 3 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0038] Figure 4 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0039] Figure 5 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0040] Figure 6 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0041] Figure 7 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0042] Figure 8 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0043] Figure 9 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application.

[0044] Figure 10 Flowchart of another embodiment of the transformer operation control method for offshore wind power described in the present application. DETAILED DESCRIPTION

[0045] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without some or all of these specific details, and that the present application is not limited to the specific embodiments disclosed below.

[0046] It is to be understood that when an element such as a layer, film or region is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can also be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, although the terms "first", "second", etc. can be used herein to describe various elements, these elements should not be limited by these terms since such elements are commonly known by other terms.

[0047] In addition, the terms "first", "second", etc. are used herein only to describe various elements, and do not imply or suggest relative importance or a number of the indicated technical features. Thus, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, for example, two, three, etc., unless otherwise explicitly specified and limited.

[0048] In the present application, unless otherwise explicitly specified and limited, the "on", "under", "above" and "over" of a first feature to a second feature can be that the first feature is directly in contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the "on", "above" and "over" of a first feature to a second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "under", "below" and "under" of a first feature to a second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0049] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0050] The application discloses a wind power transformer and an operation control method, device and storage medium thereof, which comprise part of steps, all steps, part of structures or all structures of the following embodiments, that is, the wind power transformer and the operation control method, device and storage medium thereof comprise part of technical features or all technical features of the following. In one embodiment of the application, an operation control method of a wind power transformer comprises the following steps: obtaining a consumption capacity feedback; evaluating historical load of the wind power transformer; determining an operation mode of the wind power transformer according to the consumption capacity feedback and the historical load; and controlling operation of the wind power transformer according to the operation mode. The operation control method of the wind power transformer balances the contradiction between transformer self-loss and power grid power abandonment, and simplifies operation control of the wind power transformer in cooperation with the operation mode, facilitates management of a transformer for a large amount of wind power, and is conducive to reducing load degree of the wind power transformer due to the design in combination with the historical load, thereby reducing oil temperature of the wind power transformer, prolonging normal service life of the wind power transformer, and greatly avoiding power abandonment caused by insufficient consumption capacity; the operation control method of the wind power transformer is suitable for operation control of a land wind power transformer and operation control of a sea wind power transformer.

[0051] In the following, the wind power transformer operation control method is applied to sea wind power, that is, the wind power transformer operation control method can be referred to as a sea wind power transformer operation control method, but those skilled in the art can understand that each embodiment of the application is also applicable to land wind power, and at this time, the wind power transformer operation control method can also be referred to as a land wind power transformer operation control method. In one embodiment of the application, a sea wind power transformer operation control method as shown in Figure 1 includes the following steps: S100, obtaining a consumption capacity feedback; S200, evaluating historical load of the sea wind power transformer; S300, determining an operation mode of the sea wind power transformer according to the consumption capacity feedback and the historical load; and S400, controlling operation of the sea wind power transformer according to the operation mode. In one embodiment, the number of the sea wind power transformers is multiple, and each of the sea wind power transformers is separately provided with an operation mode. In one embodiment of the application, a sea wind power transformer operation control method as shown in Figure 2As shown, the method comprises the steps of: S101, determining the number of offshore wind power transformers to be managed and sorting; S100, for the next offshore wind power transformer, obtaining the accommodation capacity feedback; S200, evaluating the historical load of the offshore wind power transformer; S300, determining the operation mode of the offshore wind power transformer according to the accommodation capacity feedback and the historical load; S400, controlling the operation of the offshore wind power transformer according to the operation mode; S500, determining whether all offshore wind power transformers have completed operation control, and if not, returning to step S100. Such design is conducive to realizing the large-scale and automated management of a large number of offshore wind power transformers for offshore wind power, and is conducive to improving the normal use of offshore wind power transformers, thereby saving manpower maintenance cost, failure cost and outage cost. It can be understood that the above method is also applicable to land wind power, and is also conducive to realizing the large-scale and automated management of a large number of land wind power transformers for land wind power, and is conducive to improving the normal use of land wind power transformers, thereby saving manpower maintenance cost, failure cost and outage cost. The remaining embodiments are similar, and will not be repeated.

[0052] In one embodiment, in step S100, the accommodation capacity feedback is obtained. In one embodiment, after obtaining the accommodation capacity feedback, the wind power transformer operation control method further comprises the step of: analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods include hours, days, weeks, decades, months, seasons, half years and years; and / or comprehensively evaluating the historical load of the wind power transformer according to wind power peak periods, wind power valley periods, load peak periods and load valley periods; and / or the number of wind power transformers is multiple, and the operation mode of each wind power transformer is set individually. In one embodiment, after obtaining the accommodation capacity feedback, the offshore wind power transformer operation control method further comprises the step of: analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods include hours, days, weeks, decades, months, seasons, half years and years. In one embodiment, after step S100, the offshore wind power transformer operation control method further comprises the step of: S110, analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods include hours, days, weeks, decades, months, seasons, half years and years. In one embodiment of the present application, a wind power transformer operation control method is as follows: Figure 3As shown, the method comprises the following steps: S100, obtaining a feedback of accommodation capacity; S110, analyzing the feedback of accommodation capacity according to time periods and event periods, wherein the time periods include hours, days, weeks, decades, months, seasons, half years and years; S200, evaluating historical load of the transformer for offshore wind power; S300, determining an operation mode of the transformer for offshore wind power according to the feedback of accommodation capacity and the historical load; and S400, controlling operation of the transformer for offshore wind power according to the operation mode. Such design is beneficial for big data analysis to determine when the problem of insufficient accommodation capacity is likely to occur, especially according to the time periods of annual statistics. A wind farm is likely to encounter peak period and trough period. According to experience, the abandoned electricity in the trough period can be more than 10%, and the load of the transformer for offshore wind power can be appropriately reduced in this state.

[0053] In one of the embodiments, the historical load of the transformer for offshore wind power is evaluated in step S200. In one of the embodiments, the evaluation of the historical load of the transformer for offshore wind power comprises comprehensive evaluation of the historical load of the transformer for offshore wind power according to wind power peak period, wind power trough period, load peak period and load trough period. The specific evaluation method can refer to the load evaluation of the transformer. The innovation of the present application lies in the application of these evaluation methods to the historical load of the transformer for offshore wind power to measure whether the past load is worthy. In one of the embodiments, after obtaining the feedback of accommodation capacity, the method for controlling operation of the transformer for offshore wind power further comprises the following steps: analyzing the feedback of accommodation capacity according to time periods and event periods, wherein the time periods include hours, days, weeks, decades, months, seasons, half years and years; and comprehensive evaluation of the historical load of the transformer for offshore wind power according to wind power peak period, wind power trough period, load peak period and load trough period. In one of the embodiments of the present application, a method for controlling operation of a transformer for offshore wind power comprises the following steps: Figure 4As shown, it comprises the steps: S100, obtaining the accommodation capacity feedback; S110, analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods comprise hours, days, weeks, tens of days, months, seasons, half a year and years; S200, comprehensively evaluating the historical load of the offshore wind power transformer according to wind power peak periods, wind power valley periods, load peak periods and load valley periods; S300, determining the operation mode of the offshore wind power transformer according to the accommodation capacity feedback and the historical load; and S400, controlling the operation of the offshore wind power transformer according to the operation mode. The remaining embodiments are similar, and details are not repeated. Such design is beneficial to improving the accuracy of the historical load of the offshore wind power transformer. The longer the operation, the more reference value the historical load has. The theoretical operation life of the offshore wind power transformer should be more than 20 years, and the failure rate is higher and the maintenance cost is higher in the later period. Therefore, by reasonably evaluating the historical load of the offshore wind power transformer and combining the large database obtained by the common comprehensive management of a large number of offshore wind power transformers, it is beneficial to set a reasonable operation mode to reduce the load degree of the offshore wind power transformer, thereby reducing the oil temperature of the offshore wind power transformer and prolonging the normal service life of the offshore wind power transformer.

[0054] In one embodiment, in step S300, the operation mode of the offshore wind power transformer is determined according to the accommodation capacity feedback and the historical load. Further, the operation mode of the offshore wind power transformer is determined according to the accommodation capacity feedback and the historical load, so that the operation load of the offshore wind power transformer meets the accommodation capacity, and the offshore wind power transformer is prevented from being in high-power loss when it is in high-load operation and causing power abandonment due to insufficient accommodation capacity. In one embodiment, before evaluating the historical load of the wind power transformer, the wind power transformer operation control method further comprises the steps of: pre-setting at least two operation modes according to the power consumption status of the wind power transformer; and selecting one operation mode of the wind power transformer according to the accommodation capacity feedback and the historical load. In one embodiment, before evaluating the historical load of the offshore wind power transformer, the offshore wind power transformer operation control method further comprises the steps of: pre-setting at least two operation modes according to the power consumption status of the offshore wind power transformer; and selecting one operation mode of the offshore wind power transformer according to the accommodation capacity feedback and the historical load. In one embodiment of the present application, a kind of offshore wind power transformer operation control method as shown in the figure Figure 5As shown, it includes the following steps: S102, presetting at least two operating modes based on the power consumption status of the offshore wind power transformer; S100, obtaining absorption capacity feedback; S200, evaluating the historical load of the offshore wind power transformer; S300, selecting an operating mode of the offshore wind power transformer based on the absorption capacity feedback and the historical load; S400, controlling the operation of the offshore wind power transformer according to the selected operating mode. Alternatively, in one embodiment of this application, an offshore wind power transformer operation control method is as follows: Figure 6 As shown, the process includes the following steps: S100, obtaining feedback on absorption capacity; S102, presetting at least two operating modes based on the power consumption of the offshore wind power transformer; S200, evaluating the historical load of the offshore wind power transformer; S300, selecting an operating mode of the offshore wind power transformer based on the absorption capacity feedback and the historical load; S400, controlling the operation of the offshore wind power transformer according to the selected operating mode. Other embodiments follow the same principle and will not be elaborated further. This design ensures that the operating load of the offshore wind power transformer matches the absorption capacity, avoiding the situation where the offshore wind power transformer experiences high power loss under high load but suffers from power curtailment due to insufficient absorption capacity. Therefore, it balances the contradiction between the transformer's own losses and grid curtailment, and the operating modes simplify the operation control of the offshore wind power transformer, which is beneficial for managing a large number of offshore wind power transformers. Furthermore, in one embodiment, the offshore wind power transformer operation control method further includes the steps of: analyzing the power loss status of the offshore wind power transformer under each of the aforementioned operating modes, generating a power loss fitting curve related to its operating parameters for the offshore wind power transformer, and, under the premise of maintaining the overall output unchanged, allocating operating parameters according to time periods to minimize losses as one operating mode; under the premise of reducing the absorption capacity gap in the overall output, allocating operating parameters according to time periods to minimize losses as another operating mode; and under the premise of reducing the absorption capacity gap in historical load, allocating operating parameters according to time periods to minimize losses as yet another operating mode. The first-in, first-out (FIFO) approach is used to reduce the absorption capacity gap based on the historical load average over a certain period. Another operating mode is to allocate operating parameters according to time periods to minimize losses. In specific implementation, other methods can also be adopted, which can be designed according to actual needs. The goal is to prevent offshore wind power transformers from doing useless work, producing electricity that is abandoned, and causing their own high losses to accelerate the oxidation of insulating materials in the oil tank and the aging of transformer oil. Therefore, it balances the contradiction between the transformer's own losses and the grid's abandonment of electricity, which helps to extend the maintenance cycle of offshore wind power transformers while ensuring output, and also ensures the normal design life of offshore wind power transformers.

[0055] In one of the embodiments, before determining the operation mode of the wind power transformer, the wind power transformer operation control method further comprises the steps of: analyzing the oil temperature change condition of the wind power transformer; and determining the operation mode of the wind power transformer according to the accommodation capacity feedback, the historical load and the oil temperature change condition. In one of the embodiments, before determining the operation mode of the offshore wind power transformer, the offshore wind power transformer operation control method further comprises the steps of: analyzing the oil temperature change condition of the offshore wind power transformer; and determining the operation mode of the offshore wind power transformer according to the accommodation capacity feedback, the historical load and the oil temperature change condition. In one of the embodiments, an offshore wind power transformer operation control method as shown in Figure 7 FIG. 1, which comprises the steps of: S100, obtaining accommodation capacity feedback; S200, evaluating the historical load of the offshore wind power transformer; S210, analyzing the oil temperature change condition of the offshore wind power transformer; S300, determining the operation mode of the offshore wind power transformer according to the accommodation capacity feedback, the historical load and the oil temperature change condition; and S400, controlling the operation of the offshore wind power transformer according to the operation mode. The oil temperature change condition is a very important reference index for the structure inside the transformer, such as the insulation paper, winding, etc. The excessively high oil temperature can accelerate the aging of the transformer oil, increase the long-term use cost of the transformer, accelerate the oxidation between the insulation paper and other insulation structures, shorten the normal service life of the transformer, shorten the maintenance period, and easily cause faults. Therefore, it is very necessary to analyze the oil temperature change condition of the offshore wind power transformer, especially when the historical load is high but the power is abandoned. At this time, the feedback paid for the excessively high oil temperature is the insufficient accommodation capacity, which is completely unnecessary. Therefore, determining the operation mode of the offshore wind power transformer according to the accommodation capacity feedback, the historical load and the oil temperature change condition is beneficial to reduce the load degree of the offshore wind power transformer in the long-term use process, reduce the oil temperature of the transformer oil of the transformer, i.e., the temperature, prolong the normal service life of the offshore wind power transformer, prolong the maintenance period, and is beneficial to avoid the faults of the offshore wind power transformer.

[0056] In one embodiment, the method comprises the steps of: S100, obtaining the feedback of the accommodation capacity, and generating a first time curve of the accommodation capacity; S200, evaluating the historical load of the offshore wind power transformer, and generating a second time curve of the historical load; S300, comparing the first time curve and the second time curve, and determining the operation mode of the offshore wind power transformer; and S400, controlling the operation of the offshore wind power transformer according to the operation mode. Figure 8 In one embodiment, the method comprises the steps of: S100, obtaining the feedback of the accommodation capacity, and generating a first time curve of the accommodation capacity; S200, evaluating the historical load of the offshore wind power transformer, and generating a second time curve of the historical load; S300, comparing the first time curve and the second time curve, and determining the operation mode of the offshore wind power transformer; and S400, controlling the operation of the offshore wind power transformer according to the operation mode.

[0057] In one embodiment, the method further comprises the steps of: S500, analyzing the oil temperature change of the offshore wind power transformer, and generating a third time curve of the oil temperature change; and S600, comparing the first time curve, the second time curve and the third time curve, and determining the operation mode of the offshore wind power transformer. In one embodiment, the method further comprises the steps of: S500, analyzing the oil temperature change of the offshore wind power transformer, and generating a third time curve of the oil temperature change; and S600, comparing the first time curve, the second time curve and the third time curve, and determining the operation mode of the offshore wind power transformer. Figure 9As shown, the method comprises the following steps: S100, obtaining the feedback of the accommodation capacity, and generating a first time curve of the accommodation capacity; S200, evaluating the historical load of the offshore wind power transformer, and generating a second time curve of the historical load; S210, analyzing the oil temperature change condition of the offshore wind power transformer, and generating a third time curve of the oil temperature change; S300, comparing the first time curve, the second time curve and the third time curve to determine the operation mode of the offshore wind power transformer; and S400, controlling the operation of the offshore wind power transformer according to the operation mode. Further, in step S300, the first time curve, the second time curve and the third time curve are compared, and under the premise that the oil temperature of the offshore wind power transformer is controlled to be below a high temperature threshold, the second time curve is adjusted according to the first time curve, so that the third time curve is kept below the high temperature threshold, so as to set the operation parameters or select the operation mode of the offshore wind power transformer, and then the operation of the offshore wind power transformer is controlled according to the operation mode. Through the reasonable comparison of the time curves, the corresponding trends of the accommodation capacity, the historical load and the oil temperature change can be determined according to the time change, and in step S300, the corresponding trends are balanced as much as possible, so that in the time period with insufficient accommodation capacity, the load of the offshore wind power transformer is appropriately reduced to ensure that the oil temperature is below the high temperature threshold, thereby prolonging the normal service life of the offshore wind power transformer.

[0058] In one embodiment, in step S400, the operation of the offshore wind power transformer is controlled according to the operation mode. In one embodiment, when the operation of the offshore wind power transformer is controlled according to the operation mode, the offshore wind power transformer operation control method further comprises the steps of: obtaining the electricity demand; and determining whether the current operation mode meets the electricity demand. If yes, the current operation mode is maintained, and if no, the operation mode of the offshore wind power transformer is adjusted. In one embodiment, when the operation of the offshore wind power transformer is controlled according to the operation mode, the offshore wind power transformer operation control method further comprises the steps of: obtaining the electricity demand; and determining whether the current operation mode meets the electricity demand. If yes, the current operation mode is maintained, and if no, the operation mode of the offshore wind power transformer is adjusted. In one embodiment, the offshore wind power transformer operation control method comprises the following steps: Figure 10As shown, it comprises the steps of: S100, obtaining a feedback of accommodation capacity; S200, evaluating historical load of the offshore wind power transformer; S300, determining an operation mode of the offshore wind power transformer according to the feedback of accommodation capacity and the historical load; S400, controlling operation of the offshore wind power transformer according to the operation mode; S600, obtaining an electricity demand; S700, judging whether the current operation mode meets the electricity demand, otherwise executing step S800, yes, executing step S900; S800, adjusting the operation mode of the offshore wind power transformer, returning to execute step S700; S900, maintaining the current operation mode. Such design is suitable for adjustment when the electricity demand changes, especially when the feedback of accommodation capacity presents changes in actual electricity demand, at this time, the actual electricity demand should be met as much as possible under the premise of safe operation. According to the above description, it can be seen that the offshore wind power transformer operation control method according to the embodiments of the present application can also be applied to the land wind power transformer, i.e. the onshore wind power transformer, if necessary. However, since the maintenance of the onshore wind power transformer is relatively convenient, the demand is not urgent.

[0059] In one of the embodiments, a wind power transformer is implemented by using the wind power transformer operation control method of any of the embodiments. Alternatively, a wind power transformer has functional modules for executing the wind power transformer operation control method of any of the embodiments. In one of the embodiments, a wind power transformer includes an obtaining module for obtaining accommodation capacity feedback, an evaluation module for evaluating historical load of the wind power transformer, an analysis module for determining operation mode of the wind power transformer according to the accommodation capacity feedback and the historical load, and a control module for controlling operation of the wind power transformer according to the operation mode. In the case of offshore wind power application, in one of the embodiments, an offshore wind power transformer is implemented by using the offshore wind power transformer operation control method of any of the embodiments. Alternatively, an offshore wind power transformer has functional modules for executing the offshore wind power transformer operation control method of any of the embodiments. In one of the embodiments, an offshore wind power transformer includes an obtaining module for obtaining accommodation capacity feedback, an evaluation module for evaluating historical load of the offshore wind power transformer, an analysis module for determining operation mode of the offshore wind power transformer according to the accommodation capacity feedback and the historical load, and a control module for controlling operation of the offshore wind power transformer according to the operation mode. The remaining embodiments are similar and will not be described in detail. Such design balances the contradiction between transformer self-loss and grid power abandonment, and simplifies the operation control of offshore wind power transformer in cooperation with the operation mode, facilitates the management of transformers for a large number of offshore wind power, and reduces the load of offshore wind power transformer due to the design in combination with historical load, thereby reducing the oil temperature of offshore wind power transformer, prolonging the normal service life of offshore wind power transformer, and greatly avoiding the problem of power abandonment due to insufficient accommodation capacity.

[0060] In one of the embodiments, an electronic device includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the wind power transformer operation control method such as the offshore wind power transformer operation control method of any of the embodiments when executing the computer program. The electronic device can also be referred to as a device or an electronic control device. In one of the embodiments, an electronic device is provided, which includes a memory and a processor, the memory stores a computer program, and the processor implements the steps of the offshore wind power transformer operation control method in the above embodiments when executing the computer program.

[0061] In one of the embodiments, a computer readable storage medium stores a computer program which, when executed by a processor, implements the steps of the transformer operation control method for wind power, such as the transformer operation control method for offshore wind power, according to any of the embodiments. It can be understood by those skilled in the art that all or part of the processes of the above-mentioned embodiments can be completed by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer readable storage medium. When the computer program is executed, the processes of the above-mentioned embodiments can be included. Any reference to memory, storage, database or other medium used in the embodiments provided by the present application can include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory. Volatile memory can include random access memory (RAM) or external cache memory. As an illustration but not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0062] It should be noted that other embodiments of the present application also include the wind power transformer, the operation control method, the electronic device and the computer readable storage medium formed by the combination of the technical features in the above embodiments, which can be implemented.

[0063] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, but as long as the combination of the technical features does not exist, it should be considered as the scope of the present application.

[0064] The above-mentioned embodiments only express several embodiments of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A transformer for wind power, characterized in that The wind power transformer adopts a wind power transformer operation control method, and the wind power transformer operation control method comprises the following steps: According to the power consumption condition of the wind power transformer, at least two operation modes are pre-set; Obtaining the accommodation capacity feedback; when obtaining the accommodation capacity feedback, a first time curve of the accommodation capacity is generated; Evaluating the historical load of the wind power transformer; when evaluating the historical load of the wind power transformer, a second time curve of the historical load is generated; Analyzing the oil temperature change condition of the wind power transformer to generate a third time curve of the oil temperature change; According to the accommodation capacity feedback, the historical load and the oil temperature change condition, the first time curve, the second time curve and the third time curve are compared, and under the premise that the oil temperature of the wind power transformer is controlled to be less than a preset temperature value, the second time curve is adjusted according to the first time curve, so that the third time curve is kept below the preset temperature value, so as to select the operation mode of the wind power transformer; According to the operation mode, the operation of the wind power transformer is controlled; The wind power transformer operation control method further comprises the following steps: analyzing the power loss condition of the wind power transformer under each operation mode, generating a power loss fitting curve related to the operation parameters of the wind power transformer, and distributing the operation parameters according to time periods to minimize the loss as one operation mode; under the premise of reducing the accommodation capacity gap, the operation parameters are distributed according to time periods to minimize the loss as another operation mode; under the premise of reducing the accommodation capacity gap, the operation parameters are distributed according to time periods to minimize the loss as another operation mode; according to the first-in first-out mode, the historical load average of a certain time period is reduced to reduce the accommodation capacity gap, and the operation parameters are distributed according to time periods to minimize the loss as another operation mode. After obtaining the accommodation capacity feedback, the wind power transformer operation control method further comprises the following steps: analyzing the accommodation capacity feedback according to time periods and event periods, wherein the time periods include hours, days, weeks, tens of days, months, seasons, half a year and a year. The historical load of the wind power transformer is comprehensively evaluated according to the wind power peak period, the wind power valley period, the load peak period and the load valley period. The number of the wind power transformers is multiple, and the operation mode of each wind power transformer is set separately. When the operation of the wind power transformer is controlled according to the operation mode, the wind power transformer operation control method further comprises the following steps: Obtaining the electricity demand; 2. The transformer for wind power according to claim 1, characterized in that, Judging whether the current operation mode meets the electricity demand, if yes, maintaining the current operation mode, otherwise adjusting the operation mode of the wind power transformer.

3. The transformer for wind power according to claim 1, characterized in that, ​ 4. The transformer for wind power according to claim 1, characterized in that, ​ 5. The transformer for wind power according to any one of claims 1 to 4, characterized in that, ​ ​ ​

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