Method and system for evaluating operation efficiency of wind driven generator

Abstract

The invention relates to the technical field of wind driven generators, and discloses a wind driven generator operation efficiency evaluation method and system, and the method comprises the steps: obtaining the current operation information and the current power generation information of a wind driven generator based on a preset collection time interval, and calculating an operation efficiency evaluation factor based on the current power generation information; processing the current operation information to obtain a plurality of same-type operation information sets; dividing the same-type operation information set into a positive operation information set and a negative operation information set, and calculating an operation information analysis coefficient of the same-type operation information set; setting an adjustment value of the wind driven generator according to the operation information analysis coefficient, adjusting the operation efficiency evaluation factor to obtain a target operation efficiency evaluation factor of the wind driven generator, the target operation efficiency evaluation factor being a product value of the operation efficiency evaluation factor and the adjustment value, and realizing intelligent evaluation of the operation efficiency of the wind driven generator. The operation efficiency evaluation precision and efficiency are ensured, the power generation efficiency is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbines, and in particular to a method and system for evaluating the operating efficiency of a wind turbine. Background Art

[0002] With the increasing demand for environmental protection and sustainable development, wind energy, as a clean and renewable energy source, has received widespread attention. In the field of wind power generation, how to effectively evaluate the operating efficiency and performance of wind turbines has become a key issue in improving the overall benefits of wind farms.

[0003] Traditional operating efficiency evaluation methods mostly rely on simple mathematical models or empirical formulas. Although these methods can reflect the performance of wind turbines to a certain extent, they often ignore the impact of various complex factors on efficiency, such as wind speed changes, blade wear, etc. Therefore, it is particularly important to develop a more accurate and comprehensive method for evaluating the operating efficiency of wind turbines. Summary of the invention

[0004] The embodiment of the present invention provides a method and system for evaluating the operating efficiency of a wind turbine, which can realize intelligent evaluation of the operating efficiency of a wind turbine, ensure the accuracy and efficiency of the operating efficiency evaluation, improve the power generation efficiency and reduce the maintenance cost.

[0005] In order to achieve the above object, the present invention provides a method for evaluating the operating efficiency of a wind turbine, comprising:

[0006] Acquire current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyze the current power generation information, and calculate the operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information;

[0007] Processing the current operation information to obtain multiple sets of operation information of the same type;

[0008] Dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set;

[0009] The adjustment value of the wind turbine is set according to the operation information analysis coefficient, and the operation efficiency evaluation factor is adjusted based on the adjustment value to obtain a target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

[0010] Furthermore, when analyzing the current power generation information and calculating the operation efficiency evaluation factor of the wind turbine based on the analysis result, it includes:

[0011] Randomly determine first wind speed information and second wind speed information, and calculate a first wind speed information difference between the first wind speed information and the second wind speed information;

[0012] Extracting maximum wind speed information and minimum wind speed information from all wind speed information, and calculating a second wind speed information difference between the maximum wind speed information and the minimum wind speed information;

[0013] Calculating a wind speed information ratio of the first wind speed information difference and the second wind speed information difference;

[0014] extracting first power generation information corresponding to the first wind speed information, and extracting second power generation information corresponding to the second wind speed information;

[0015] Calculating a first power generation information difference between the first power generation information and the second power generation information;

[0016] Extracting maximum power generation information and minimum power generation information from all power generation information, and calculating a second power generation information difference between the maximum power generation information and the minimum power generation information;

[0017] Calculating a power generation information ratio of the first power generation information difference value and the second power generation information difference value;

[0018] Calculating an information product value of the wind speed information ratio and the power generation information ratio, and using the product value as a sub-operation efficiency evaluation factor of the wind turbine;

[0019] The operation efficiency evaluation factor of the wind turbine is calculated according to all the sub-operation efficiency evaluation factors.

[0020] Furthermore, when calculating the operation efficiency evaluation factor of the wind turbine generator according to all the sub-operation efficiency evaluation factors, it includes:

[0021] Calculating the factor means of all sub-operation efficiency evaluation factors, and classifying all sub-operation efficiency evaluation factors that are less than the factor means into the first factor sequence;

[0022] Classify all sub-operation efficiency evaluation factors greater than or equal to the factor mean into a second factor sequence;

[0023] An operating efficiency evaluation factor of the wind turbine is calculated according to the first factor sequence and the second factor sequence.

[0024] Further, when calculating the operation efficiency evaluation factor of the wind turbine according to the first factor sequence and the second factor sequence, it includes:

[0025] The operating efficiency evaluation factor of the wind turbine is calculated according to the following formula:

[0026]

[0027] Among them, u is the operating efficiency evaluation factor of the wind turbine, w is the factor mean, y1 is the number of sub-operating efficiency evaluation factors in the first factor sequence, y2 is the number of sub-operating efficiency evaluation factors in the second factor sequence, w1 is the mean corresponding to the first factor sequence, and w2 is the mean corresponding to the first factor sequence.

[0028] Further, when dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set, it includes:

[0029] Acquire standard operation information corresponding to the same type of operation information set, and classify all current operation information in the same type of operation information set that is greater than or equal to the standard operation information into a positive operation information set;

[0030] Classify all current operation information that is smaller than the standard operation information in the same type of operation information set into a negative operation information set;

[0031] Randomly matching the current operation information in the current operation information set in pairs to obtain a plurality of current operation information matching pairs;

[0032] Calculate the positive running information value based on all the positive running information matching pairs;

[0033] Randomly matching the current operation information in the negative operation information set in pairs to obtain a plurality of negative operation information matching pairs;

[0034] Calculate negative running information values ​​based on all negative running information matching pairs;

[0035] Randomly matching the current operation information in the positive operation information set with the current operation information in the negative operation information set in pairs to obtain a plurality of positive and negative operation information matching pairs;

[0036] Calculate positive and negative running information values ​​according to all positive and negative running information matching pairs;

[0037] The operation information analysis coefficient of the same type of operation information set is calculated according to the positive operation information value, the negative operation information value and the positive and negative operation information values.

[0038] Furthermore, the positive and negative operation information values ​​are calculated according to the following formula:

[0039]

[0040] Among them, a1 is the positive and negative running information value, n1 is the number of positive and negative running information matching pairs, b i is the current operation information corresponding to the positive operation information set in the i-th positive and negative operation information matching pair, e i is the current operation information corresponding to the negative operation information set in the i-th positive and negative operation information matching pair, n2 is the number of current operation information in the positive operation information set, d c is the cth current operation information in the positive operation information set, n3 is the number of current operation information in the negative operation information set, g f is the fth current operation information in the negative operation information set;

[0041] The positive running information value is calculated according to the following formula:

[0042]

[0043] Among them, a2 is the positive running information value, m1 is the number of positive running information matching pairs, k h and p h are the current running information in the hth running information matching pair, and k h ≥p h .

[0044] Further, when calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information value, the negative operation information value and the positive and negative operation information values, it includes:

[0045] configuring a first calculation coefficient for the positive operation information value and configuring a second calculation coefficient for the negative operation information value;

[0046] The operation information analysis coefficient of the same type of operation information set is calculated according to the following formula:

[0047]

[0048] Among them, r is the operation information analysis coefficient of the same type of operation information set, s1 is the first calculation coefficient, s2 is the second calculation coefficient, t1 is the positive operation information value, t2 is the negative operation information value, t3 is the positive and negative operation information value, s1<0, s2<0.

[0049] Further, when setting the adjustment value of the wind turbine generator according to the operation information analysis coefficient, it includes:

[0050] Presetting a first preset operation information analysis coefficient and a second preset operation information analysis coefficient;

[0051] Presetting a first preset adjustment value, a second preset adjustment value, and a third preset adjustment value;

[0052] When the operation information analysis coefficient is less than the first preset operation information analysis coefficient, the first preset adjustment value is used as the adjustment value of the wind turbine;

[0053] When the operation information analysis coefficient is greater than or equal to the first preset operation information analysis coefficient and less than the second preset operation information analysis coefficient, the second preset adjustment value is used as the adjustment value of the wind turbine;

[0054] When the operation information analysis coefficient is greater than or equal to the second preset operation information analysis coefficient, the third preset adjustment value is used as the adjustment value of the wind turbine.

[0055] In order to achieve the above object, the present invention further provides an operating efficiency evaluation system for a wind turbine, comprising:

[0056] The first module is used to obtain current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyze the current power generation information, and calculate the operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information;

[0057] The second module is used to process the current operation information to obtain multiple sets of operation information of the same type;

[0058] A third module is used to divide the same type of operation information set into a positive operation information set and a negative operation information set, and calculate the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set;

[0059] The fourth module is used to set the adjustment value of the wind turbine according to the operation information analysis coefficient, and adjust the operation efficiency evaluation factor based on the adjustment value to obtain the target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

[0060] Compared with the prior art, the present invention has the following beneficial effects:

[0061] The present invention discloses a method and system for evaluating the operation efficiency of a wind turbine. The method comprises the following steps: obtaining current operation information and current power generation information of the wind turbine based on a preset collection time interval, and calculating an operation efficiency evaluation factor based on the current power generation information; processing the current operation information to obtain a plurality of operation information sets of the same type; dividing the operation information sets of the same type into a positive operation information set and a negative operation information set, and calculating an operation information analysis coefficient of the operation information sets of the same type; setting an adjustment value of the wind turbine according to the operation information analysis coefficient, adjusting the operation efficiency evaluation factor, and obtaining a target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product value of the operation efficiency evaluation factor and the adjustment value, thereby realizing intelligent evaluation of the operation efficiency of the wind turbine, ensuring the accuracy and efficiency of the operation efficiency evaluation, improving the power generation efficiency, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0062] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0063] Figure 1 A schematic diagram showing a flow chart of a method for evaluating the operating efficiency of a wind turbine in an embodiment of the present invention is shown;

[0064] Figure 2 A schematic structural diagram of a wind turbine operating efficiency evaluation system according to an embodiment of the present invention is shown. DETAILED DESCRIPTION

[0065] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0066] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0067] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0068] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0069] The following is a description of preferred embodiments of the present invention with reference to the accompanying drawings.

[0070] like Figure 1 As shown, an embodiment of the present invention discloses a method for evaluating the operating efficiency of a wind turbine, comprising:

[0071] S110: acquiring current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyzing the current power generation information, and calculating an operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information;

[0072] In this embodiment, the current operating information includes operating temperature, operating voltage, operating current, operating vibration, etc.

[0073] In this embodiment, the collection time intervals include 1-2, 2-4, 4-6, etc., and the unit is hours. The current operation information is the average current operation information collected within the 1st hour to the 2nd hour, such as the average operating temperature.

[0074] In some embodiments of the present application, when analyzing the current power generation information and calculating the operation efficiency evaluation factor of the wind turbine based on the analysis result, it includes:

[0075] Randomly determine first wind speed information and second wind speed information, and calculate a first wind speed information difference between the first wind speed information and the second wind speed information;

[0076] Extracting maximum wind speed information and minimum wind speed information from all wind speed information, and calculating a second wind speed information difference between the maximum wind speed information and the minimum wind speed information;

[0077] Calculating a wind speed information ratio of the first wind speed information difference and the second wind speed information difference;

[0078] extracting first power generation information corresponding to the first wind speed information, and extracting second power generation information corresponding to the second wind speed information;

[0079] Calculating a first power generation information difference between the first power generation information and the second power generation information;

[0080] Extracting maximum power generation information and minimum power generation information from all power generation information, and calculating a second power generation information difference between the maximum power generation information and the minimum power generation information;

[0081] Calculating a power generation information ratio of the first power generation information difference value and the second power generation information difference value;

[0082] Calculating an information product value of the wind speed information ratio and the power generation information ratio, and using the product value as a sub-operation efficiency evaluation factor of the wind turbine;

[0083] The operation efficiency evaluation factor of the wind turbine is calculated according to all the sub-operation efficiency evaluation factors.

[0084] In this embodiment, the calculation method of the remaining sub-operation efficiency evaluation factors is consistent with the above.

[0085] In this embodiment, if there is separate wind speed information and power generation information, the wind speed information and power generation information are deleted.

[0086] The beneficial effect of the above technical solution is that the present invention can accurately calculate the sub-operation efficiency evaluation factor, thereby laying a foundation for calculating the operation efficiency evaluation factor of the wind turbine and providing data support.

[0087] In some embodiments of the present application, when calculating the operation efficiency evaluation factor of the wind turbine according to all the sub-operation efficiency evaluation factors, it includes:

[0088] Calculating the factor means of all sub-operation efficiency evaluation factors, and classifying all sub-operation efficiency evaluation factors that are less than the factor means into the first factor sequence;

[0089] Classify all sub-operation efficiency evaluation factors greater than or equal to the factor mean into a second factor sequence;

[0090] An operating efficiency evaluation factor of the wind turbine is calculated according to the first factor sequence and the second factor sequence.

[0091] The beneficial effect of the above technical solution is that the present invention can calculate the operating efficiency evaluation factor of the wind turbine according to the first factor sequence and the second factor sequence, thereby realizing a preliminary evaluation of the wind turbine.

[0092] In some embodiments of the present application, when calculating the operation efficiency evaluation factor of the wind turbine according to the first factor sequence and the second factor sequence, it includes:

[0093] The operating efficiency evaluation factor of the wind turbine is calculated according to the following formula:

[0094]

[0095] Among them, u is the operating efficiency evaluation factor of the wind turbine, w is the factor mean, y1 is the number of sub-operating efficiency evaluation factors in the first factor sequence, y2 is the number of sub-operating efficiency evaluation factors in the second factor sequence, w1 is the mean corresponding to the first factor sequence, and w2 is the mean corresponding to the first factor sequence.

[0096] S120: Processing the current operation information to obtain multiple sets of operation information of the same type;

[0097] In this embodiment, if the operating temperature corresponding to each acquisition time interval is extracted, a set of operating information of the same type of temperature is constructed, and the temperature here is of the same type.

[0098] S130: Dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set;

[0099] In some embodiments of the present application, when dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set, it includes:

[0100] Acquire standard operation information corresponding to the same type of operation information set, and classify all current operation information in the same type of operation information set that is greater than or equal to the standard operation information into a positive operation information set;

[0101] Classify all current operation information that is smaller than the standard operation information in the same type of operation information set into a negative operation information set;

[0102] Randomly matching the current operation information in the current operation information set in pairs to obtain a plurality of current operation information matching pairs;

[0103] Calculate the positive running information value based on all the positive running information matching pairs;

[0104] Randomly matching the current operation information in the negative operation information set in pairs to obtain a plurality of negative operation information matching pairs;

[0105] Calculate negative running information values ​​based on all negative running information matching pairs;

[0106] Randomly matching the current operation information in the positive operation information set with the current operation information in the negative operation information set in pairs to obtain a plurality of positive and negative operation information matching pairs;

[0107] Calculate positive and negative running information values ​​according to all positive and negative running information matching pairs;

[0108] The operation information analysis coefficient of the same type of operation information set is calculated according to the positive operation information value, the negative operation information value and the positive and negative operation information values.

[0109] In this embodiment, if the current operation information in the same type of operation information set is temperature, then the standard operation information is temperature, which can be set specifically according to actual conditions.

[0110] In this embodiment, if there is unmatched current running information in the running information set, the current running information is deleted.

[0111] In this embodiment, if there is unmatched current operation information in the negative operation information set, the current operation information is deleted.

[0112] In this embodiment, if there is unmatched current operation information in the positive operation information set and the negative operation information set, the unmatched current operation information is deleted.

[0113] The beneficial effect of the above technical solution is: the present invention calculates the operation information analysis coefficient of the same type of operation information set based on the positive operation information value, the negative operation information value and the positive and negative operation information values, which can comprehensively reflect the impact of the current operation information on the performance of the wind turbine, and further ensure the reliability of the performance evaluation of the wind turbine.

[0114] In some embodiments of the present application, the positive and negative operation information values ​​are calculated according to the following formula:

[0115]

[0116] Among them, a1 is the positive and negative running information value, n1 is the number of positive and negative running information matching pairs, b i is the current operation information corresponding to the positive operation information set in the i-th positive and negative operation information matching pair, e iis the current operation information corresponding to the negative operation information set in the i-th positive and negative operation information matching pair, n2 is the number of current operation information in the positive operation information set, d c is the cth current operation information in the positive operation information set, n3 is the number of current operation information in the negative operation information set, g f is the fth current operation information in the negative operation information set;

[0117] The positive running information value is calculated according to the following formula:

[0118]

[0119] Among them, a2 is the positive running information value, m1 is the number of positive running information matching pairs, k h and p h are the current running information in the hth running information matching pair, and k h ≥p h .

[0120] In this embodiment, the calculation method of the negative operation information value is the same as that of the positive operation information value, and in order to save space, it will not be repeated here.

[0121] In some embodiments of the present application, when calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information value, the negative operation information value and the positive and negative operation information values, it includes:

[0122] configuring a first calculation coefficient for the positive operation information value and configuring a second calculation coefficient for the negative operation information value;

[0123] The operation information analysis coefficient of the same type of operation information set is calculated according to the following formula:

[0124]

[0125] Among them, r is the operation information analysis coefficient of the same type of operation information set, s1 is the first calculation coefficient, s2 is the second calculation coefficient, t1 is the positive operation information value, t2 is the negative operation information value, t3 is the positive and negative operation information value, s1<0, s2<0.

[0126] S140: Setting the adjustment value of the wind turbine according to the operation information analysis coefficient, and adjusting the operation efficiency evaluation factor based on the adjustment value to obtain a target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

[0127] In this embodiment, the operating efficiency of the wind turbine is evaluated based on the target operating efficiency evaluation factor. When the target operating efficiency evaluation factor is larger, the operating efficiency of the wind turbine is higher. Conversely, when the target operating efficiency evaluation factor is smaller, the operating efficiency of the wind turbine is lower.

[0128] In some embodiments of the present application, when setting the adjustment value of the wind turbine generator according to the operation information analysis coefficient, it includes:

[0129] Presetting a first preset operation information analysis coefficient and a second preset operation information analysis coefficient;

[0130] Presetting a first preset adjustment value, a second preset adjustment value, and a third preset adjustment value;

[0131] When the operation information analysis coefficient is less than the first preset operation information analysis coefficient, the first preset adjustment value is used as the adjustment value of the wind turbine;

[0132] When the operation information analysis coefficient is greater than or equal to the first preset operation information analysis coefficient and less than the second preset operation information analysis coefficient, the second preset adjustment value is used as the adjustment value of the wind turbine;

[0133] When the operation information analysis coefficient is greater than or equal to the second preset operation information analysis coefficient, the third preset adjustment value is used as the adjustment value of the wind turbine.

[0134] In this embodiment, the first preset operation information analysis coefficient is preferably 8, and the second preset operation information analysis coefficient is preferably 12.

[0135] In this embodiment, the first preset adjustment value is preferably 0.85, the second preset adjustment value is preferably 1.15, and the third preset adjustment value is preferably 1.25.

[0136] The beneficial effect of the above technical solution is: the present invention selects a preset adjustment value according to the operation information analysis coefficient, the first preset operation information analysis coefficient and the second preset operation information analysis coefficient, and adjusts the operation efficiency evaluation factor, thereby realizing dynamic adjustment of the operation efficiency evaluation factor and further ensuring the calculation accuracy and comprehensiveness.

[0137] In order to further explain the technical idea of ​​the present invention, the technical solution of the present invention is now described in combination with specific application scenarios.

[0138] Correspondingly, such as Figure 2 As shown, the present application also provides an operating efficiency evaluation system for a wind turbine, comprising:

[0139] The first module is used to obtain current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyze the current power generation information, and calculate the operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information;

[0140] The second module is used to process the current operation information to obtain multiple sets of operation information of the same type;

[0141] A third module is used to divide the same type of operation information set into a positive operation information set and a negative operation information set, and calculate the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set;

[0142] The fourth module is used to set the adjustment value of the wind turbine according to the operation information analysis coefficient, and adjust the operation efficiency evaluation factor based on the adjustment value to obtain the target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

[0143] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0144] Although the present invention has been described above with reference to the embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed by the present invention may be used in combination with each other in any manner, and the fact that these combinations are not fully described in this specification is only for the sake of omitting space and saving resources.

[0145] Those skilled in the art can understand that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A method for evaluating the operating efficiency of a wind turbine, characterized in that: include: Acquire current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyze the current power generation information, and calculate the operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information; Processing the current operation information to obtain multiple sets of operation information of the same type; Dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set; The adjustment value of the wind turbine is set according to the operation information analysis coefficient, and the operation efficiency evaluation factor is adjusted based on the adjustment value to obtain a target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

2. The method for evaluating the operating efficiency of a wind turbine according to claim 1, characterized in that: When analyzing the current power generation information and calculating the operation efficiency evaluation factor of the wind turbine generator based on the analysis result, it includes: Randomly determine first wind speed information and second wind speed information, and calculate a first wind speed information difference between the first wind speed information and the second wind speed information; Extracting maximum wind speed information and minimum wind speed information from all wind speed information, and calculating a second wind speed information difference between the maximum wind speed information and the minimum wind speed information; Calculating a wind speed information ratio of the first wind speed information difference and the second wind speed information difference; extracting first power generation information corresponding to the first wind speed information, and extracting second power generation information corresponding to the second wind speed information; Calculating a first power generation information difference between the first power generation information and the second power generation information; Extracting maximum power generation information and minimum power generation information from all power generation information, and calculating a second power generation information difference between the maximum power generation information and the minimum power generation information; Calculating a power generation information ratio of the first power generation information difference value and the second power generation information difference value; Calculating an information product value of the wind speed information ratio and the power generation information ratio, and using the product value as a sub-operation efficiency evaluation factor of the wind turbine; The operation efficiency evaluation factor of the wind turbine is calculated according to all the sub-operation efficiency evaluation factors.

3. The method for evaluating the operating efficiency of a wind turbine according to claim 2, characterized in that: When calculating the operation efficiency evaluation factor of the wind turbine generator according to all the sub-operation efficiency evaluation factors, it includes: Calculating the factor means of all sub-operation efficiency evaluation factors, and classifying all sub-operation efficiency evaluation factors that are less than the factor means into the first factor sequence; Classify all sub-operation efficiency evaluation factors greater than or equal to the factor mean into a second factor sequence; An operating efficiency evaluation factor of the wind turbine is calculated according to the first factor sequence and the second factor sequence.

4. The method for evaluating the operating efficiency of a wind turbine according to claim 3, characterized in that: When calculating the operation efficiency evaluation factor of the wind turbine according to the first factor sequence and the second factor sequence, it includes: The operating efficiency evaluation factor of the wind turbine is calculated according to the following formula: Among them, u is the operating efficiency evaluation factor of the wind turbine, w is the factor mean, y1 is the number of sub-operating efficiency evaluation factors in the first factor sequence, y2 is the number of sub-operating efficiency evaluation factors in the second factor sequence, w1 is the mean corresponding to the first factor sequence, and w2 is the mean corresponding to the first factor sequence.

5. The method for evaluating the operating efficiency of a wind turbine according to claim 1, characterized in that: When dividing the same type of operation information set into a positive operation information set and a negative operation information set, and calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set, it includes: Acquire standard operation information corresponding to the same type of operation information set, and classify all current operation information in the same type of operation information set that is greater than or equal to the standard operation information into a positive operation information set; Classify all current operation information that is smaller than the standard operation information in the same type of operation information set into a negative operation information set; Randomly matching the current operation information in the current operation information set in pairs to obtain a plurality of current operation information matching pairs; Calculate the positive running information value based on all the positive running information matching pairs; Randomly matching the current operation information in the negative operation information set in pairs to obtain a plurality of negative operation information matching pairs; Calculate negative running information values ​​based on all negative running information matching pairs; Randomly matching the current operation information in the positive operation information set with the current operation information in the negative operation information set in pairs to obtain a plurality of positive and negative operation information matching pairs; Calculate positive and negative running information values ​​according to all positive and negative running information matching pairs; The operation information analysis coefficient of the same type of operation information set is calculated according to the positive operation information value, the negative operation information value and the positive and negative operation information values.

6. The method for evaluating the operating efficiency of a wind turbine according to claim 5, characterized in that: Calculate the positive and negative running information values ​​according to the following formula: Among them, a1 is the positive and negative running information value, n1 is the number of positive and negative running information matching pairs, b i is the current operation information corresponding to the positive operation information set in the i-th positive and negative operation information matching pair, e i is the current operation information corresponding to the negative operation information set in the i-th positive and negative operation information matching pair, n2 is the number of current operation information in the positive operation information set, d c is the cth current operation information in the positive operation information set, n3 is the number of current operation information in the negative operation information set, g f is the fth current operation information in the negative operation information set; The positive running information value is calculated according to the following formula: Among them, a2 is the positive running information value, m1 is the number of positive running information matching pairs, k h and p h are the current running information in the hth running information matching pair, and k h ≥p h .

7. The method for evaluating the operating efficiency of a wind turbine according to claim 6, characterized in that: When calculating the operation information analysis coefficient of the same type of operation information set according to the positive operation information value, the negative operation information value and the positive and negative operation information values, it includes: configuring a first calculation coefficient for the positive operation information value and configuring a second calculation coefficient for the negative operation information value; The operation information analysis coefficient of the same type of operation information set is calculated according to the following formula: Among them, r is the operation information analysis coefficient of the same type of operation information set, s1 is the first calculation coefficient, s2 is the second calculation coefficient, t1 is the positive operation information value, t2 is the negative operation information value, t3 is the positive and negative operation information value, s1<0, s2<0.

8. The method for evaluating the operating efficiency of a wind turbine according to claim 1, characterized in that: When setting the adjustment value of the wind turbine generator according to the operation information analysis coefficient, it includes: Presetting a first preset operation information analysis coefficient and a second preset operation information analysis coefficient; Presetting a first preset adjustment value, a second preset adjustment value, and a third preset adjustment value; When the operation information analysis coefficient is less than the first preset operation information analysis coefficient, the first preset adjustment value is used as the adjustment value of the wind turbine; When the operation information analysis coefficient is greater than or equal to the first preset operation information analysis coefficient and less than the second preset operation information analysis coefficient, the second preset adjustment value is used as the adjustment value of the wind turbine; When the operation information analysis coefficient is greater than or equal to the second preset operation information analysis coefficient, the third preset adjustment value is used as the adjustment value of the wind turbine.

9. A wind turbine operating efficiency evaluation system, applied to the wind turbine operating efficiency evaluation method according to any one of claims 1 to 8, characterized in that: include: The first module is used to obtain current operation information and current power generation information of the wind turbine based on a preset collection time interval, analyze the current power generation information, and calculate the operation efficiency evaluation factor of the wind turbine based on the analysis result, wherein the current power generation information includes power generation information and wind speed information; The second module is used to process the current operation information to obtain multiple sets of operation information of the same type; A third module is used to divide the same type of operation information set into a positive operation information set and a negative operation information set, and calculate the operation information analysis coefficient of the same type of operation information set according to the positive operation information set and the negative operation information set; The fourth module is used to set the adjustment value of the wind turbine according to the operation information analysis coefficient, and adjust the operation efficiency evaluation factor based on the adjustment value to obtain the target operation efficiency evaluation factor of the wind turbine, wherein the target operation efficiency evaluation factor is the product of the operation efficiency evaluation factor and the adjustment value.

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