New energy electric power early warning system and early warning method thereof

Abstract

The invention discloses a new energy electric power early warning system and an early warning method thereof, and belongs to the technical field of electric power early warning, and the system comprises a wind speed and wind direction monitoring device, a demand end historical electric quantity receiving unit, a power grid regulation and control receiving unit, a generating capacity detection unit, a plurality of groups of inspection robots and a control unit. The method can inform maintenance personnel of the number of the wind driven generator when the wind driven generator is abnormal in wind speed, seriously damaged and moderately damaged, early warning prompts to maintain the wind driven generator as soon as possible, and the early warning speed and accuracy are high; according to the invention, the state of the wind driven generator in the region can be regulated and controlled in real time according to the predicted demand electric quantity data Q demand of demand end historical data or the scheduled demand electric quantity data Q scheduling, and according to the current external form damage monitoring result of the wind driven generator and the wind speed rotation monitoring result of the wind driven generator and by combining the wind power; the safety is high, power generation with the maximum efficiency can be achieved in the peak period of electricity utilization, and the loss of the wind driven generator is reduced in the valley period of electricity utilization.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power early warning, and in particular to a new energy electric power early warning system and an early warning method thereof. Background Art

[0002] With the development of new energy power systems, their proportion in the power system has gradually increased and has become an indispensable part of the power system. For example, wind power generation has the advantages of environmental protection and abundant resources, so it is increasingly valued by countries around the world.

[0003] Patent CN117588371A discloses a wind turbine fault monitoring and early warning system. By setting up a sensor component to detect the end of the movement trajectory of the wind turbine blade, the data of the wind turbine blade stopping or abnormal speed will be transmitted to the remote terminal through the signal component. The manager responsible for the wind turbine station will compare whether there is a fault or abnormality based on the operating data of each independent wind turbine. When the speed of the wind turbine blades in the same small area is inconsistent, the data can be intuitively reflected, thereby achieving the purpose of early warning and monitoring.

[0004] However, it still requires managers to compare the speed of wind turbines in the same area to detect abnormalities, and the speed and accuracy of early warning are difficult to guarantee. At the same time, it is impossible to control the wind turbines in the area in real time according to the predicted power consumption, environmental conditions, and the status of the wind turbines themselves, making it difficult to achieve maximum efficiency power generation during peak power consumption periods and reduce wind turbine losses during low power consumption periods.

[0005] Based on this, the present invention designs a new energy power early warning system and early warning method thereof to solve the above problems. Summary of the invention

[0006] In view of the above-mentioned shortcomings of the prior art, the present invention provides a new energy power early warning system and an early warning method thereof.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A new energy power early warning system, comprising:

[0009] Several groups of wind speed and direction monitoring devices installed on each wind turbine are used to detect the wind speed f at the location of each wind turbine in real time. 速 and wind direction 向 ;

[0010] The wind turbine generator has an angle adjustment device for adjusting the rotation angle of the fan blades of the wind turbine generator, and is used to adjust the position of the fan blades according to the data of wind speed and wind direction;

[0011] The demand side historical electricity receiving unit is used to receive the demand electricity data Q from the demand side historical data 需 ;

[0012] The power grid control receiving unit is used to receive the dispatched power demand data Q in real time according to the dispatch of the power grid system after the dispatch information is issued by the power grid system. 调 ;Q 调 has a higher priority than Q 需 ;

[0013] Power generation detection unit, used to detect the power generation Q of each wind turbine i , and calculate the total power generation Q of wind turbines in the area 发 ;

[0014] Multiple groups of inspection robots are used to monitor the external damage and wind speed of each wind turbine;

[0015] The monitoring results of wind turbine external damage include severe damage, moderate damage and slight damage levels;

[0016] The data of severe damage, moderate damage and slight damage levels and wind turbine numbers are compounded, and the output results are: severe damage + wind turbine number, moderate damage + wind turbine number and slight damage + wind turbine number;

[0017] The wind turbine wind speed rotation monitoring results include: normal wind speed and abnormal wind speed + wind speed + wind turbine number;

[0018] The control unit is used to receive the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; send the results of severe damage + wind turbine number, moderate damage + wind turbine number, abnormal wind speed + wind speed + wind turbine number to the maintenance personnel, and warn them to repair as soon as possible, and at the same time control the position of the wind turbine blades of the wind turbines with abnormal wind speed and severe damage to be adjusted to an angle of 20 to 30 degrees with the wind direction;

[0019] And determine whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈, f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency;

[0020] And after receiving Q 调 When judging whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction.

[0021] Furthermore, severe damage means that the blades / rods of the wind turbine meet the following conditions: a. fracture cracks; b. missing amount > 3% of the total area of ​​the blades / rods; c. deformation > 10% of the original shape of the blades / rods; d. pit area > 5% of the total area of ​​the blades / rods;

[0022] Moderate damage means that the blades or poles of the wind turbine meet the following conditions: a. 1% of the total area of ​​the blade / pole < missing amount ≤ 3% of the total area of ​​the blade / pole; b. 5% of the original shape of the blade / pole < deformation ≤ 10% of the original shape of the blade / pole; c. 2% of the total area of ​​the blade / pole < pit area ≤ 5% of the total area of ​​the blade / pole;

[0023] Minor damage means that the blades or poles of the wind turbine meet the following requirements: a. The amount of damage is ≤ 1% of the total area of ​​the blade / pole; b. The amount of deformation is ≤ 5% of the original shape of the blade / pole; c. The area of ​​the pit is ≤ 2% of the total area of ​​the blade / pole.

[0024] Furthermore, the wind speed rotation monitoring method of the wind turbine is: obtain the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, calculate the average wind speed f of the two adjacent wind turbines 平均 , calculate f1 and f平均 Deviation X:

[0025] X=(f1-f 平均 ) / f 平均×100％

[0026] Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

[0027] Furthermore, the demand side stores the power demand data at each time of each day in the historical 365 days, and sends the data to the historical power receiving unit of the demand side one day in advance.

[0028] Furthermore, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 or Q 发 =Q 需 , the positions of the wind turbine blades of the remaining wind turbines are no longer adjusted.

[0029] Furthermore, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

[0030] In order to better achieve the purpose of the present invention, the present invention also provides a new energy power early warning method, using the new energy power early warning system, including the following steps:

[0031] S1. The wind speed and direction monitoring device detects the wind speed f at each wind turbine in real time. 速 and wind direction 向 ;

[0032] S2, the demand side historical electricity receiving unit receives the demand electricity data Q from the demand side historical data 需 The demand side stores the demand power data at each time of each day in the history of 365 days, and sends the data to the demand side historical power receiving unit one day in advance; after the power grid system sends out the dispatch information, the power grid control receiving unit receives the dispatched demand power data Q in real time according to the dispatch of the power grid system. 调 ;Q 调 has a higher priority than Q 需;

[0033] S3, the power generation detection unit detects the power generation Q of each wind turbine i , and calculate the total power generation Q of wind turbines in the area 发 ;

[0034] S4. Multiple groups of inspection robots conduct external damage monitoring and wind speed rotation monitoring on each wind turbine. The external damage monitoring results of the wind turbine include severe damage, moderate damage and slight damage levels. The wind speed rotation monitoring results of the wind turbine include normal wind speed and abnormal wind speed.

[0035] S5. The control unit receives the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; sends the results of severe damage, moderate damage, and abnormal wind speed to the maintenance personnel, and warns them to repair as soon as possible. At the same time, the position of the wind turbine blades of the wind turbine with abnormal wind speed and severe damage is adjusted to an angle of 20 to 30 degrees with the wind direction;

[0036] And determine whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , f 速阈 Indicates the set maximum wind speed threshold; if f 速 ≥f 速阈 , it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction;

[0037] And after receiving Q 调 When judging whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , f 速阈 Indicates the set maximum wind speed threshold; if f 速 ≥f速阈 , it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction.

[0038] Furthermore, the wind speed rotation monitoring method of the wind turbine is: obtain the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, calculate the average wind speed f of the two adjacent wind turbines 平均 , calculate f1 and f 平均 Deviation X:

[0039] X=(f1-f 平均 ) / f 平均×100％

[0040] Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

[0041] Furthermore, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 or Q 发 =Q 需 , the positions of the wind turbine blades of the remaining wind turbines are no longer adjusted.

[0042] Compared with the prior art, the present invention has the following beneficial effects: when the wind turbine has abnormal wind speed, severe damage or moderate damage, the present invention can inform the maintenance personnel of the wind turbine number, and give an early warning to repair it as soon as possible. The early warning speed and accuracy are high, which is conducive to avoiding the expansion of abnormality and causing losses.

[0043] The present invention can realize the demand power data Q according to the predicted demand side historical data 需 Or the demand power data after dispatch Q 调 As well as based on the current wind turbine external morphology damage monitoring results and wind turbine wind speed rotation monitoring results, combined with the wind force, the wind turbines in the area are regulated in real time to be facing the wind direction or at an angle of 20 to 30 degrees to the wind direction, which not only ensures safety, but also achieves maximum efficiency in power generation during peak electricity consumption periods, and reduces wind turbine losses during low electricity consumption periods. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0045] Figure 1 A system block diagram of a new energy power early warning system of the present invention;

[0046] Figure 2 This is a flow chart of a new energy power early warning method of the present invention. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0048] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1 , a new energy power early warning system, comprising:

[0049] Several groups of wind speed and direction monitoring devices installed on each wind turbine are used to detect the wind speed f at the location of each wind turbine in real time. 速 and wind direction 向 ;

[0050] The wind turbine generator has an angle adjustment device for adjusting the rotation angle of the fan blades of the wind turbine generator, and is used to adjust the position of the fan blades according to the data of wind speed and wind direction;

[0051] The demand side historical electricity receiving unit is used to receive the demand electricity data Q from the demand side historical data 需 The demand side stores the demand electricity data at each time of each day in the history of 365 days, and sends the data to the demand side historical electricity receiving unit one day in advance;

[0052] The power grid control receiving unit is used to receive the dispatched power demand data Q in real time according to the dispatch of the power grid system after the dispatch information is issued by the power grid system. 调 ;Q 调 has a higher priority than Q 需 ;

[0053] Power generation detection unit, used to detect the power generation Q of each wind turbinei , and calculate the total power generation Q of wind turbines in the area 发 ;

[0054] Multiple groups of inspection robots are used to monitor the external damage and wind speed of each wind turbine;

[0055] The monitoring results of wind turbine external damage include severe damage, moderate damage and slight damage levels;

[0056] Severe damage means that the blades / rods of the wind turbine meet the following conditions: a. fracture cracks; b. missing amount > 3% of the total area of ​​the blades / rods; c. deformation > 10% of the original shape of the blades / rods; d. pit area > 5% of the total area of ​​the blades / rods;

[0057] Moderate damage means that the blades or poles of the wind turbine meet the following conditions: a. 1% of the total area of ​​the blade / pole < missing amount ≤ 3% of the total area of ​​the blade / pole; b. 5% of the original shape of the blade / pole < deformation ≤ 10% of the original shape of the blade / pole; c. 2% of the total area of ​​the blade / pole < pit area ≤ 5% of the total area of ​​the blade / pole;

[0058] Minor damage means that the blades or poles of the wind turbine meet the following requirements: a. The amount of damage is ≤ 1% of the total area of ​​the blade / pole; b. The amount of deformation is ≤ 5% of the original shape of the blade / pole; c. The area of ​​the pit is ≤ 2% of the total area of ​​the blade / pole.

[0059] The data of severe damage, moderate damage and slight damage levels and wind turbine numbers are compounded, and the output results are: severe damage + wind turbine number, moderate damage + wind turbine number and slight damage + wind turbine number;

[0060] The wind turbine wind speed rotation monitoring results include: normal wind speed and abnormal wind speed + wind speed + wind turbine number;

[0061] The wind speed rotation monitoring method of a wind turbine is as follows: obtain the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, calculate the average wind speed f of the two adjacent wind turbines 平均 , calculate f1 and f 平均 Deviation X:

[0062] X=(f1-f 平均 ) / f 平均×100％

[0063] Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

[0064] The control unit is used to receive the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; send the results of severe damage + wind turbine number, moderate damage + wind turbine number, abnormal wind speed + wind speed + wind turbine number to the maintenance personnel, and warn them to repair as soon as possible, and at the same time control the position of the wind turbine blades of the wind turbines with abnormal wind speed and severe damage to be adjusted to an angle of 20 to 30 degrees with the wind direction to avoid the wind turbine blades facing the wind direction;

[0065] And when the power grid control receiving unit is empty (no power grid control information is received), it is determined whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency;

[0066] Preferably, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 需 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

[0067] And after receiving Q 调 When receiving power grid control information, determine whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈, f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency;

[0068] Preferably, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

[0069] The present invention can inform maintenance personnel of the wind turbine generator number when the wind turbine generator has abnormal wind speed, severe damage or moderate damage, and provide an early warning prompt to repair it as soon as possible. The early warning speed and accuracy are high, which is conducive to avoiding the expansion of abnormality and causing increased losses.

[0070] The present invention can realize the demand power data Q according to the predicted demand side historical data 需 Or the demand power data after dispatch Q 调 As well as based on the current wind turbine external morphology damage monitoring results and wind turbine wind speed rotation monitoring results, combined with the wind force, the wind turbines in the area are regulated in real time to be facing the wind direction or at an angle of 20 to 30 degrees to the wind direction, which not only ensures safety, but also achieves maximum efficiency in power generation during peak electricity consumption periods, and reduces wind turbine losses during low electricity consumption periods.

[0071] Embodiment 2: In some embodiments, Figure 2 As shown, as a preferred embodiment of the present invention, a new energy power early warning method, using the new energy power early warning system, includes the following steps:

[0072] S1. The wind speed and direction monitoring device detects the wind speed f at each wind turbine in real time. 速 and wind direction 向 ;

[0073] S2, the demand side historical electricity receiving unit receives the demand electricity data Q from the demand side historical data 需 The demand side stores the demand electricity data at each time of each day in the history of 365 days, and sends the data to the demand side historical electricity receiving unit one day in advance;

[0074] After the grid system issues dispatch information, the grid control receiving unit receives the dispatched demand power data Q in real time according to the dispatch of the grid system. 调 ;Q 调 has a higher priority than Q 需 ;

[0075] S3, the power generation detection unit detects the power generation Q of each wind turbine i , and calculate the total power generation Q of wind turbines in the area 发 ;

[0076] S4, multiple groups of inspection robots conduct external damage monitoring and wind speed rotation monitoring on each wind turbine;

[0077] The monitoring results of wind turbine external damage include severe damage, moderate damage and slight damage levels;

[0078] Severe damage means that the blades / rods of the wind turbine meet the following conditions: a. fracture cracks; b. missing amount > 3% of the total area of ​​the blades / rods; c. deformation > 10% of the original shape of the blades / rods; d. pit area > 5% of the total area of ​​the blades / rods;

[0079] Moderate damage means that the blades or poles of the wind turbine meet the following conditions: a. 1% of the total area of ​​the blade / pole < missing amount ≤ 3% of the total area of ​​the blade / pole; b. 5% of the original shape of the blade / pole < deformation ≤ 10% of the original shape of the blade / pole; c. 2% of the total area of ​​the blade / pole < pit area ≤ 5% of the total area of ​​the blade / pole;

[0080] Minor damage means that the blades or poles of the wind turbine meet the following requirements: a. The amount of damage is ≤ 1% of the total area of ​​the blade / pole; b. The amount of deformation is ≤ 5% of the original shape of the blade / pole; c. The area of ​​the pit is ≤ 2% of the total area of ​​the blade / pole.

[0081] The data of severe damage, moderate damage and slight damage levels and wind turbine numbers are compounded, and the output results are: severe damage + wind turbine number, moderate damage + wind turbine number and slight damage + wind turbine number;

[0082] The wind turbine wind speed rotation monitoring results include: normal wind speed and abnormal wind speed + wind speed + wind turbine number;

[0083] The wind speed rotation monitoring method of a wind turbine is as follows: obtain the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, calculate the average wind speed f of the two adjacent wind turbines 平均 , calculate f1 and f 平均 Deviation X:

[0084] X=(f1-f平均 ) / f 平均×100％

[0085] Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

[0086] S5. The control unit receives the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; sends the results of severe damage + wind turbine number, moderate damage + wind turbine number, abnormal wind speed + wind speed + wind turbine number to the maintenance personnel, and warns them to repair as soon as possible. At the same time, the position of the wind turbine blades of the wind turbines with abnormal wind speed and severe damage is adjusted to an angle of 20 to 30 degrees with the wind direction to avoid the wind turbine blades facing the wind direction;

[0087] And when the power grid control receiving unit is empty (no power grid control information is received), it is determined whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency;

[0088] Preferably, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 需 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

[0089] And after receiving Q 调 When receiving power grid control information, determine whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency;

[0090] Preferably, if f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

[0091] The present invention can inform maintenance personnel of the wind turbine generator number when the wind turbine generator has abnormal wind speed, severe damage or moderate damage, and provide an early warning prompt to repair it as soon as possible. The early warning speed and accuracy are high, which is conducive to avoiding the expansion of abnormality and causing increased losses.

[0092] The present invention can realize the demand power data Q according to the predicted demand side historical data 需 Or the demand power data after dispatch Q 调 As well as based on the current wind turbine external morphology damage monitoring results and wind turbine wind speed rotation monitoring results, combined with the wind force, the wind turbines in the area are regulated in real time to be facing the wind direction or at an angle of 20 to 30 degrees to the wind direction, which not only ensures safety, but also achieves maximum efficiency in power generation during peak electricity consumption periods, and reduces wind turbine losses during low electricity consumption periods.

[0093] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A new energy power early warning system, characterized in that: include: Several groups of wind speed and direction monitoring devices installed on each wind turbine are used to detect the wind speed f at the location of each wind turbine in real time. 速 and wind direction 向 ; The wind turbine generator has an angle adjustment device for adjusting the rotation angle of the fan blades of the wind turbine generator, and is used to adjust the position of the fan blades according to the data of wind speed and wind direction; The demand side historical electricity receiving unit is used to receive the demand electricity data Q from the demand side historical data 需 ; The power grid control receiving unit is used to receive the dispatched power demand data Q in real time according to the dispatch of the power grid system after the dispatch information is issued by the power grid system. 调 ;Q 调 has a higher priority than Q 需 ; Power generation detection unit, used to detect the power generation Q of each wind turbine i , and calculate the total power generation Q of wind turbines in the area 发 ; Multiple groups of inspection robots are used to monitor the external damage and wind speed of each wind turbine; The monitoring results of wind turbine external damage include severe damage, moderate damage and slight damage levels; The data of severe damage, moderate damage and slight damage levels and wind turbine numbers are compounded, and the output results are: severe damage + wind turbine number, moderate damage + wind turbine number and slight damage + wind turbine number; The wind turbine wind speed rotation monitoring results include: normal wind speed and abnormal wind speed + wind speed + wind turbine number; The control unit is used to receive the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; send the results of severe damage + wind turbine number, moderate damage + wind turbine number, abnormal wind speed + wind speed + wind turbine number to the maintenance personnel, and warn them to repair as soon as possible, and at the same time control the position of the wind turbine blades of the wind turbines with abnormal wind speed and severe damage to be adjusted to an angle of 20 to 30 degrees with the wind direction; And determine whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction to achieve maximum power generation efficiency; And after receiving Q 调 When judging whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed and serious damage, first determine whether f 速 ≥f 速阈 , if f 速 ≥f 速阈 , f speed threshold indicates the maximum wind speed threshold; it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction.

2. The new energy power early warning system according to claim 1 is characterized in that: Severe damage means that the blades / rods of the wind turbine meet the following conditions: a. fracture cracks; b. missing amount > 3% of the total area of ​​the blades / rods; c. deformation > 10% of the original shape of the blades / rods; d. pit area > 5% of the total area of ​​the blades / rods; Moderate damage means that the blades or poles of the wind turbine meet the following conditions: a. 1% of the total area of ​​the blade / pole < missing amount ≤ 3% of the total area of ​​the blade / pole; b. 5% of the original shape of the blade / pole < deformation ≤ 10% of the original shape of the blade / pole; c. 2% of the total area of ​​the blade / pole < pit area ≤ 5% of the total area of ​​the blade / pole; Minor damage means that the blades or poles of the wind turbine meet the following requirements: a. The amount of damage is ≤ 1% of the total area of ​​the blade / pole; b. The amount of deformation is ≤ 5% of the original shape of the blade / pole; c. The area of ​​the pit is ≤ 2% of the total area of ​​the blade / pole.

3. The new energy power early warning system according to claim 2 is characterized in that: The wind speed rotation monitoring method of a wind turbine is as follows: obtaining the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, and calculating the average wind speed f of the two adjacent wind turbines. 平均 , calculate f1 and f 平均 Deviation X: X=(f1-f 平均 ) / f 平均×100％ Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

4. The new energy power early warning system according to claim 3 is characterized in that: The demand side stores the power demand data at each time of each day in the history of 365 days, and sends the data to the demand side historical power receiving unit one day in advance.

5. The new energy power early warning system according to claim 4 is characterized in that: If f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 or Q 发 =Q 需 , the positions of the wind turbine blades of the remaining wind turbines are no longer adjusted.

6. The new energy power early warning system according to claim 5 is characterized in that: If f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 The positions of the wind turbine blades of the remaining wind turbines are no longer adjusted, which is beneficial to reducing the losses of wind turbines during the low electricity consumption period.

7. A new energy power early warning method, using the new energy power early warning system according to claim 6, characterized in that: The following steps are involved: S1. The wind speed and direction monitoring device detects the wind speed f at each wind turbine in real time. 速 and wind direction 向 ; S2, the demand side historical electricity receiving unit receives the demand electricity data Q from the demand side historical data 需 The demand side stores the demand power data at each time of each day in the history of 365 days, and sends the data to the demand side historical power receiving unit one day in advance; after the power grid system sends out the dispatch information, the power grid control receiving unit receives the dispatched demand power data Q in real time according to the dispatch of the power grid system. 调 ;Q 调 has a higher priority than Q 需 ; S3, the power generation detection unit detects the power generation Q of each wind turbine i , and calculate the total power generation Q of wind turbines in the area 发 ; S4, multiple groups of inspection robots conduct external damage monitoring and wind speed rotation monitoring on each wind turbine; The monitoring results of wind turbine external damage include severe damage, moderate damage and slight damage levels; The wind turbine wind speed rotation monitoring results include: normal wind speed and abnormal wind speed; S5. The control unit receives the monitoring results of the external damage of the wind turbine and the wind speed rotation of the wind turbine in real time; sends the results of severe damage, moderate damage, and abnormal wind speed to the maintenance personnel, and warns them to repair as soon as possible. At the same time, the position of the wind turbine blades of the wind turbine with abnormal wind speed and severe damage is adjusted to an angle of 20 to 30 degrees with the wind direction; And determine whether Q 发 ≥Q 需 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 需 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , f 速阈 Indicates the set maximum wind speed threshold; if f 速 ≥f 速阈 , it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction to avoid the fan blades facing the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction; And after receiving Q 调 When judging whether Q 发 ≥Q 调 If yes, it means that the total power generation of the wind turbine is sufficient and no processing is required; if Q 发 <Q 调 , indicating that the total power generation of the wind turbine is insufficient. At this time, for wind turbines other than those with abnormal wind speed or serious damage, first determine whether f 速 ≥f 速阈 , f 速阈 Indicates the set maximum wind speed threshold; if f 速 ≥f 速阈 , it means that the current wind speed is too high and may damage the fan blades. At this time, adjust the position of the fan blades to an angle of 20 to 30 degrees with the wind direction; if f 速 <f 速阈 , then adjust the position of the fan blades to face the wind direction according to the wind direction.

8. The new energy power early warning method according to claim 7 is characterized in that: The wind speed rotation monitoring method of a wind turbine is as follows: obtain the wind speed f1 of the wind turbine and the wind speeds f2 and f3 of its two adjacent wind turbines, calculate the average wind speed f of the two adjacent wind turbines 平均 , calculate f1 and f 平均 Deviation X: X=(f1-f 平均 ) / f 平均×100％ Determine whether X is greater than 10%. If so, the wind speed is abnormal. The abnormal wind speed data and the wind turbine generator number are combined to output: abnormal wind speed + wind speed + wind turbine generator number; otherwise, the wind speed is normal.

9. The new energy power early warning method according to claim 8 is characterized in that: If f 速 <f 速阈 , give priority to Q i The wind turbine blade position of the wind turbine with a large value is adjusted to face the wind direction until Q 发 =Q 调 or Q 发 =Q 需 , the positions of the wind turbine blades of the remaining wind turbines are no longer adjusted.

Images