A wind power plant performance evaluation system based on data governance analysis

Abstract

The application provides a wind power station performance evaluation system based on data management analysis, compared with the prior art, the application also includes a monitoring module for mobile operation in the wind power station to obtain monitoring data of each wind power generator, and a remote monitoring analysis module for obtaining data information monitored by the monitoring module to obtain the operation condition of each wind power generator in the wind power station.The monitoring module of the application realizes automatic movement and positioning, reduces the demand for manpower, can quickly respond to the monitoring demand of different wind power generators, improves the overall work efficiency, and efficient data collection provides a reliable basis for performance evaluation of the wind power generator.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wind power generation systems, and particularly relates to a wind power station performance evaluation system based on data governance analysis. BACKGROUND

[0002] With the growing demand for renewable energy worldwide, wind power generation, as a clean and renewable energy source, is becoming increasingly important. Wind power stations use wind energy to convert into electricity, helping to reduce dependence on fossil fuels and reduce greenhouse gas emissions. The operation and maintenance of wind power stations include ensuring power generation efficiency, preventing and repairing faults, and optimizing maintenance operations, etc. Due to the complexity of wind turbines and the unpredictability of the environment, these tasks are challenging. The wind power station performance evaluation system based on data governance analysis not only improves the efficiency and reliability of energy production, but also helps to reduce the maintenance cost of wind turbines by optimizing the operation and maintenance process, while improving the economic efficiency of wind power generation. The health of the wind turbine is crucial to the performance of the entire wind power station. The efficiency of any single wind turbine or failure can affect the overall performance of the entire power station.

[0003] The experimental team has long been engaged in the research and development of wind turbine technology. Based on relevant resources and a large number of related experiments, the team has found that existing technologies such as CN105257481B, CN107633368B, CN111120221B, and CN113090471B, as disclosed in the prior art, such as a wind turbine generator set output performance evaluation method and device, wherein the method comprises: obtaining environmental parameters of positions of each wind turbine generator set in a wind farm, wherein the hardware configuration parameters and software configuration parameters of each wind turbine generator set in the wind farm are the same; based on the obtained environmental parameters, the wind turbine generator sets in the wind farm are divided into one or more groups, so that the difference in environmental parameters between wind turbine generator sets in the same group is within a preset range; calculating the power curve aggregation degree of each group of wind turbine generator sets; based on the power curve aggregation degree of each group of wind turbine generator sets, the output performance of each group of wind turbine generator sets is evaluated. The method and device provided in the embodiment of the present application can accurately evaluate the output performance of the wind turbine generator set.

[0004] In order to solve the problem that the operation of the wind turbine cannot be preliminarily and efficiently evaluated in the prior art, the present application is made. SUMMARY

[0005] The present application aims to solve the problems existing in the prior art by providing a wind power station performance evaluation system based on data governance analysis.

[0006] In order to overcome the deficiencies of the prior art, the present application adopts the following technical solutions:

[0007] A wind power station performance evaluation system based on data management analysis, comprising a monitoring module that moves in the wind power station to monitor and acquire data of each wind turbine, and a remote monitoring analysis module that acquires data monitored by the monitoring module to obtain the operation status of each wind turbine in the wind power station,

[0008] The monitoring module comprises a test unit for contact monitoring of the wind turbine, and a mobile driving mechanism for driving the test unit to move along a preset path in the wind power station, wherein the mobile driving mechanism is an AGV car capable of moving along a preset path according to the prior art,

[0009] The test unit comprises a fixed plate fixed horizontally on the mobile driving mechanism, a linear slide table arranged on the fixed plate, a fixed table driven by the linear slide table to move linearly back and forth, a placing groove arranged on the top wall of the fixed table, a magnetic attraction seat arranged in the placing groove, a surveying mechanism movably fitted on the magnetic attraction seat and capable of moving up and down along the wind cylinder, and a permanent magnet arranged on the surveying mechanism, wherein the placing groove is an open groove with an open upper end,

[0010] The linear slide table comprises a guide rail, a sliding block movably fitted on the guide rail, and a driving mechanism for driving the sliding block to move back and forth on the guide rail, and the horizontal bottom of the fixed table is fixed to the top wall of the sliding block by a corresponding connecting piece.

[0011] Further, the magnetic attraction seat comprises an electromagnetic coil arranged in the placing groove, a controller for controlling the current direction and current size of the electromagnetic coil, and an iron core fixed in the placing groove and coaxially sleeved in the middle part of the electromagnetic coil, the current direction of the electromagnetic coil is controlled by the controller to realize magnetic attraction and / or magnetic repulsion of the permanent magnet by the magnetic attraction seat, thereby realizing fixation of the surveying mechanism to the fixed table and / or driving to leave the fixed table,

[0012] The mobile driving mechanism transports the surveying mechanism to the specified position of the wind turbine, the surveying mechanism is sleeved on the outer cylinder wall of the wind turbine through the linear slide table, the controller changes the current direction of the electromagnetic coil to reduce or eliminate the magnetic attraction force on the permanent magnet, so that the surveying mechanism is released from the placing groove of the fixed table, so as to realize movement of the surveying mechanism to the outer cylinder wall of the wind turbine.

[0013] Further, the surveying mechanism comprises two arc-shaped shells with hollow structures, through holes uniformly arranged on inner arc walls of the arc-shaped shells and respectively communicated with the hollow cavities in the arc-shaped shells, rollers respectively fixed in the hollow cavities through corresponding fixing members and at least partially protruding out of the arc-shaped shells through the through holes, driving motors respectively used for driving the rollers to rotate, a connecting shell with a frame structure, connecting units respectively used for symmetrically connecting the two arc-shaped shells to the same shell wall of the connecting shell, a matching cavity arranged on a shell wall of the connecting shell and recessed towards the inside of the connecting shell, an audio receiving unit arranged in the matching cavity, and a wind sensor fixed to a shell top wall of the connecting shell, wherein a permanent magnet is embedded in a shell bottom wall of the connecting shell, the audio receiving unit is an audio receiving sensor in the prior art, the bottom of the connecting shell can be clamped and fixed in the placing groove, and when the magnetic attraction seat magnetically attracts the permanent magnet, the bottom of the connecting shell is clamped into the recessed groove, and the arc-shaped shells and the connecting shell are movably connected through the connecting units.

[0014] Further, the connecting unit comprises a linear sliding groove horizontally arranged on the shell wall of the connecting shell, a first sliding block movably matched with the linear sliding groove, a second sliding block movably matched with the linear sliding groove, a plurality of first connecting elements used for fixedly connecting the first sliding block with one of the arc-shaped shells, a plurality of second connecting elements used for fixedly connecting the second sliding block with the other arc-shaped shell, and a plurality of telescopic electric drive rods with one end fixedly connected with the first sliding block and the other end fixedly connected with the second sliding block,

[0015] When the telescopic electric drive rod is in the preset length extension operation, the two arc-shaped shells of the surveying mechanism can move and be sleeved outside the wind power cylinder, further, when the telescopic electric drive rod is retracted to the preset retracted length, the two arc-shaped shells move towards the electric wind cylinder until the rollers abut against the cylinder wall of the wind power cylinder, so as to fix the surveying mechanism on the wind power cylinder, and further, under the synchronous driving of the driving motors on the rollers, the surveying mechanism is driven to move up and down along the wind power cylinder.

[0016] Further, the remote monitoring and analysis module comprises a database and an evaluation unit used for matching and analyzing features of audio data collected by the audio receiving sensor with information in the database to judge the wind power generator, wherein the audio receiving sensor and the evaluation unit realize data transmission through existing communication technology, the database is used for comparing with actually collected sound wave curves to detect the operation state of the wind power generator, and the evaluation unit is realized through a server.

[0017] The database comprises sound wave curves of the wind power generator normally operated for a preset T time length under different wind speed conditions.

[0018] The present application has the following advantages:

[0019] 1. The monitoring module of the present application realizes automatic movement and positioning, reduces the labor demand, improves the monitoring efficiency of wind turbines in the wind power station, can quickly respond to the monitoring demand of different wind turbines, improves the overall work efficiency, and efficient data acquisition provides a reliable foundation for performance evaluation of wind turbines.

[0020] 2. The surveying mechanism of the present application can adapt to wind cylinders of different sizes and shapes through its two movable arc-shaped shells, the design of the telescopic electric drive rod allows the surveying mechanism to move and position accurately outside the wind cylinder, ensures good contact with the wind cylinder, the design of the roller enables the surveying mechanism to move smoothly up and down along the cylinder wall of the wind cylinder, through the combination of the magnetic attraction seat and the permanent magnet, the surveying mechanism can be efficiently installed and / or removed to the fixed table, thereby reducing the operation time and maintenance cost, and improving the efficiency of the overall monitoring process of the wind power station.

[0021] 3. The present application can timely discover abnormal failure signs of wind turbines in the wind power station by monitoring and analyzing audio data of each wind turbine in the wind power station, thereby allowing timely maintenance and repair, avoiding greater damage and higher repair cost, and remote monitoring allows operators to access the status and performance data of wind turbines at any location, providing greater flexibility and instant control capability. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application can be further understood from the following description in conjunction with the accompanying drawings. The components in the drawings are not necessarily drawn to scale, but emphasis is placed on showing the principles of the embodiments. In different views, the same reference numerals designate corresponding parts.

[0023] Figure 1 It is a modular schematic diagram of the wind power station performance evaluation system of the present application.

[0024] Figure 2 It is a partial structure schematic diagram of the monitoring module of the present application.

[0025] Figure 3 It is a partial structure schematic diagram of the surveying mechanism of the present application.

[0026] Figure 4 It is a partial structure schematic diagram of the connecting unit of the present application.

[0027] BRIEF DESCRIPTION OF DRAWINGS: 1-linear slide; 2-fixed plate; 3-moving drive mechanism; 4-sliding block; 5-fixed table; 6-placing groove; 7-arc-shaped shell; 8-roller; 9-first sliding block; 10-linear sliding slot; 11-connecting shell; 12-second sliding block; 13-mating cavity; 14-shell bottom wall of connecting shell; 15-telescopic electric drive rod. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application is further described in detail below in combination with embodiments thereof. It should be noted that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application. Other systems, methods and / or features of the embodiments will become apparent to those skilled in the art after a review of the following detailed description and drawings. The terms used to describe the positional relationship in the drawings are only used for illustrative purposes and should not be construed as limiting the present patent. Those skilled in the art can understand the specific meanings of the above terms according to specific circumstances.

[0029] Embodiment one: in combination with the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , the present embodiment constructs a wind power station performance evaluation system based on data governance analysis, a wind power station performance evaluation system based on data governance analysis, comprising a monitoring module for mobile operation in a wind power station to obtain monitoring data of each wind power generator, and a remote monitoring analysis module for obtaining data information monitored by the monitoring module to obtain the operation condition of each wind power generator in the wind power station,

[0030] The monitoring module comprises a test unit for contact monitoring of the wind power generator, and a mobile driving mechanism for driving the test unit to move in the wind power station along a preset path, wherein the mobile driving mechanism is an AGV car capable of moving according to the preset path in the prior art,

[0031] The test unit comprises a fixed plate horizontally fixed on the mobile driving mechanism, a linear slide table arranged on the fixed plate, a fixed table driven by the linear slide table to move linearly back and forth, a placing groove arranged on the top wall of the fixed table, a magnetic attraction seat arranged in the placing groove, a surveying mechanism movably fitted on the magnetic attraction seat and capable of moving up and down along the wind cylinder, and a permanent magnet arranged on the surveying mechanism, wherein the placing groove is an open groove with an open structure at the upper end,

[0032] The linear slide table is a prior art, which comprises a guide rail, a sliding block movably fitted on the guide rail, and a driving mechanism for driving the sliding block to move back and forth on the guide rail, and the horizontal bottom of the fixed table is fixed on the top wall of the sliding block through a corresponding connecting piece,

[0033] The magnetic attraction base includes an electromagnetic coil disposed in a placement slot, a controller for controlling the direction and magnitude of the current in the electromagnetic coil, and an iron core fixed in the placement slot and coaxially sleeved in the middle of the electromagnetic coil. By controlling the direction of the current in the electromagnetic coil through the controller, the magnetic attraction base achieves magnetic attraction and / or magnetic repulsion of the permanent magnet, thereby fixing the surveying mechanism to the fixed platform and / or driving it away from the fixed platform.

[0034] The mobile drive mechanism transports the surveying mechanism to the designated position on the wind turbine. A linear slide mounts the surveying mechanism onto the outer wall of the wind turbine. The controller changes the direction of the current in the electromagnetic coil, reducing or eliminating the magnetic attraction on the permanent magnet, thus releasing the surveying mechanism from the placement slot on the fixed platform. This allows the surveying mechanism to be moved to the outer wall of the wind turbine.

[0035] The monitoring module of this invention achieves automated movement and positioning, reducing manpower requirements and improving the monitoring efficiency of wind turbines in wind power stations. It can quickly respond to the monitoring needs of different wind turbines, improving overall work efficiency. Efficient data acquisition provides a reliable basis for the performance evaluation of wind turbines.

[0036] Example 2: Combined with Appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 In addition to the contents of the above embodiments, the surveying mechanism includes two arc-shaped shells with hollow internal structures, through-holes evenly distributed on the inner arc walls of the arc shells and communicating with the cavities inside the arc shells, rollers that are rotatably fitted into the cavities via corresponding fasteners and at least partially extend from the through-holes to the outside of the arc shells, drive motors for driving the rollers to rotate, a frame-structured connecting shell, connecting units symmetrically connecting the two arc shells to the same shell wall of the connecting shell, mating cavities disposed on the shell wall of the connecting shell and recessed towards the inside of the connecting shell, an audio receiving unit disposed in the mating cavity, and a wind sensor fixed to the top wall of the connecting shell. A permanent magnet is embedded in the bottom wall of the connecting shell. The audio receiving unit is a prior art audio receiving sensor. The bottom of the connecting shell can be engaged and fixed in a placement groove, so that when the magnetic attraction seat magnetically attracts the permanent magnet, the bottom of the connecting shell engages in the recessed groove.

[0037] The arc-shaped shell and the connecting shell are movably connected by a connecting unit. The connecting unit includes a linear groove horizontally laid on the shell wall of the connecting shell, a first slider movably fitted on the linear groove, a second slider movably fitted on the linear groove, a plurality of first connecting elements for fixing the first slider to one of the arc-shaped shells, a plurality of second connecting elements for fixing the second slider to another arc-shaped shell, and a plurality of telescopic electric drive rods with one end fixedly connected to the first slider and the other end fixedly connected to the second slider.

[0038] When the telescopic electric drive rod extends to a preset length, the two arc-shaped shells of the surveying mechanism can move and fit over the wind turbine. Further, when the telescopic electric drive rod retracts to its preset retracted length, the two arc-shaped shells move towards the wind turbine until the rollers abut against the turbine wall, thus fixing the surveying mechanism to the wind turbine. Then, under the synchronous drive of the drive motor on each roller, the surveying mechanism is driven to move up and down along the wind turbine.

[0039] The surveying mechanism of this invention, through its two movable arc-shaped shells, can adapt to wind turbines of different sizes and shapes. The design of the telescopic electric drive rod allows the surveying mechanism to move and position precisely outside the wind turbine, ensuring good contact with the wind turbine. The roller design allows the surveying mechanism to move smoothly up and down along the wall of the wind turbine. Through the combination of magnetic attraction seat and permanent magnet, the surveying mechanism can be efficiently installed and / or removed from the fixed platform, thereby reducing operation time and maintenance costs and improving the efficiency of the overall monitoring process of wind power stations.

[0040] Example 3: Combined with Appendix Figure 1 Appendix Figure 2 Appendix Figure 3 and attached Figure 4 In addition to the content of the above embodiments, the remote monitoring and analysis module includes a database and an evaluation unit that matches and analyzes the characteristics of audio data collected by the audio receiving sensor with information in the database to determine the wind turbine's status. The audio receiving sensor and the evaluation unit transmit data via existing communication technology. The database includes sound wave curves generated by normally operating wind turbines within a preset time period (T) under different wind speed conditions, obtained by those skilled in the art through extensive repeated training. The database is used to compare with the actually collected sound wave curves to detect the wind turbine's operating status. The evaluation unit is implemented through a server and performs the following steps:

[0041] S101: When the surveying mechanism moves to a preset distance of the wind turbine nacelle, activate the audio collection device to collect audio to obtain audio data for a preset monitoring time T, while collecting the environmental wind speed WV monitored by the wind speed sensor,

[0042] S102: Extract the audio data within a preset frequency range, eliminate the influence of background noise and non-target sound sources, and obtain preprocessed audio, normalize the preprocessed audio data to standardize the amplitude of the preprocessed audio data to the range [0, 1],

[0043] S103: Obtain the sound wave curve of the preprocessed audio as the actual sound wave curve using short-time Fourier transform, and express the actual sound wave curve as A(t),

[0044] S104: Extract the corresponding control sound wave curve matched with the wind speed WV in the database, and express the control sound wave curve as B(t), wherein each preset time interval within T is a time point, and the time points within T are sequentially expressed as t1, t2, t3…tn, n is a positive integer, and the horizontal axis of A(t) and B(t) represents time, and the vertical axis represents the amplitude of the sound wave at that time,

[0045] S105: Ensure that the time points of A(t) and B(t) sound wave curves are aligned, analyze the difference between each time point to obtain the difference parameter value SR:

[0046]

[0047] wherein x = 1, 2, 3…n, w(x) is the weight of each time point, and w(x) is obtained by a person skilled in the art based on historical experience data and multiple repeated tests, which will not be repeated here,

[0048] S106: Obtain the similarity parameter value SV of A(t) and B(t) sound wave curves:

[0049]

[0050] wherein,

[0051] S106: Obtain the comprehensive performance parameter SP proportional to the performance of the wind turbine:

[0052] SP = α·(1-SR) + β·SV,

[0053] wherein α and β are weight coefficients, and α, β ∈ [0, 1], α, β are obtained by a person skilled in the art based on historical experience data and multiple repeated tests, which will not be repeated here,

[0054] S107: Bind and upload the acquired difference parameter value and the model of the wind driven generator to the preset server for staff to check, and the staff realizes preliminary evaluation and judgment of the abnormal fault of the wind driven generator according to the comprehensive performance parameter, and further improves the performance evaluation efficiency of the wind driven power station,

[0055] The present application can discover the abnormal fault signs of the wind driven generator in the wind power station in time by monitoring and acquiring the audio data of each wind driven generator in the wind power station and analyzing, so as to allow timely maintenance and repair, avoid greater damage and higher maintenance cost, and remote monitoring allows the operator to access the state and performance data of the wind driven generator at any location, which provides greater flexibility and instant control ability.

[0056] Although the present application has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present application. That is, the methods, systems and devices discussed above are examples. Various configurations can omit, substitute, or add various procedures or components as appropriate. For instance, the methods can be performed in an order different from that described, and / or various steps can be added, omitted, and / or combined. Also, features described with respect to certain configurations can be combined in various other configurations, as will be appreciated by those of ordinary skill. Furthermore, to the extent that various elements of the present application can be updated as technology advances, e.g., many elements are examples and do not limit the scope of the present disclosure or claims. And it should be understood that those skilled in the art can make various alterations or modifications to the present application after studying the disclosure content of the present application, and these equivalent changes and modifications also fall within the scope defined by the claims of the present application.

Claims

1. A wind power station performance evaluation system based on data governance analysis, characterized in that, It includes a monitoring module that operates mobilely within the wind power station to acquire monitoring data of each wind turbine, and a remote monitoring and analysis module that acquires the data monitored by the monitoring module to obtain the operating status of each wind turbine within the wind power station. The monitoring module includes a test unit for contact monitoring of the wind turbine generator and a mobile drive mechanism for driving the test unit to move within the wind power station along a preset path. The mobile drive mechanism is an AGV (Automated Guided Vehicle) trolley capable of moving according to the preset path. The testing unit includes a fixed plate horizontally fixed to a moving drive mechanism, a linear slide table mounted on the fixed plate, a fixed platform driven by the linear slide table to perform linear reciprocating movement, a placement slot on the top wall of the fixed platform, a magnetic attraction seat disposed in the placement slot, a surveying mechanism movably fitted onto the magnetic attraction seat and capable of vertical movement along the wind turbine, and a permanent magnet disposed on the surveying mechanism. The placement slot is an open slot with an open top. The linear slide includes a guide rail, a sliding block movably fitted on the guide rail, and a drive mechanism for driving the sliding block to move back and forth on the guide rail. The horizontal bottom of the fixed platform is fixed to the top wall of the sliding block by a corresponding connector. The magnetic attraction base includes an electromagnetic coil disposed in a placement slot, a controller for controlling the direction and magnitude of the current in the electromagnetic coil, and an iron core fixed in the placement slot and coaxially sleeved in the middle of the electromagnetic coil. By controlling the direction of the current in the electromagnetic coil through the controller, the magnetic attraction base achieves magnetic attraction and / or magnetic repulsion of the permanent magnet, thereby fixing the surveying mechanism to the fixed platform and / or driving it away from the fixed platform. The mobile drive mechanism transports the surveying mechanism to the designated position of the wind turbine. The linear slide table then mounts the surveying mechanism onto the outer wall of the wind turbine. The controller changes the direction of the current in the electromagnetic coil to reduce or eliminate the magnetic attraction on the permanent magnet, thus releasing the surveying mechanism from the placement slot of the fixed platform. This allows the surveying mechanism to be moved to the outer wall of the wind turbine.

2. The wind power station performance evaluation system as described in claim 1, characterized in that, The surveying mechanism includes two arc-shaped shells with hollow interiors, through-holes evenly distributed on the inner walls of the arc-shaped shells and communicating with the cavities within the arc-shaped shells, rollers that are rotatably fitted into the cavities via corresponding fasteners and at least partially extend from the through-holes to the outside of the arc-shaped shells, drive motors for driving the rollers to rotate, a frame-structured connecting shell, connecting units symmetrically connecting the two arc-shaped shells to the same shell wall of the connecting shell, mating cavities recessed into the connecting shell on its shell wall, an audio receiving unit within the mating cavity, and a wind sensor fixed to the top wall of the connecting shell. A permanent magnet is embedded in the bottom wall of the connecting shell. The audio receiving unit is an audio receiving sensor. The bottom of the connecting shell can be engaged and fixed in a placement groove, so that when the magnetic attraction seat magnetically attracts the permanent magnet, the bottom of the connecting shell engages in the placement groove. The arc-shaped shells and the connecting shell are movably connected via the connecting units.

3. The wind power station performance evaluation system as described in claim 2, characterized in that, The connecting unit includes a linear groove horizontally laid on the shell wall of the connecting shell, a first slider movably fitted on the linear groove, a second slider movably fitted on the linear groove, a plurality of first connecting elements for fixing the first slider to one of the arc-shaped shells, a plurality of second connecting elements for fixing the second slider to another arc-shaped shell, and a plurality of telescopic electric drive rods with one end fixedly connected to the first slider and the other end fixedly connected to the second slider. When the telescopic electric drive rod extends to a preset length, the two arc-shaped shells of the surveying mechanism can move and fit over the wind turbine. When the telescopic electric drive rod retracts to its preset retracted length, the two arc-shaped shells move toward the wind turbine until the rollers abut against the wall of the wind turbine, thereby fixing the surveying mechanism to the wind turbine. Furthermore, under the synchronous drive of the drive motor to each roller, the surveying mechanism is driven to move up and down along the wind turbine.

4. The wind power station performance evaluation system as described in claim 3, characterized in that, The remote monitoring and analysis module includes a database and an evaluation unit that matches and analyzes the characteristics of audio data collected by the audio receiving sensor with information in the database to determine the wind turbine's operating status. The audio receiving sensor and the evaluation unit transmit data via communication technology. The database is used to compare the data with the actually collected sound wave curves to detect the wind turbine's operating status. The evaluation unit is implemented through a server. The database includes pre-acquired and stored acoustic wave curves generated by normally operating wind turbines within a preset time period T under different wind speed conditions.

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