Turnover simulation method for wind power equipment

Abstract

The embodiment of the present invention provides a method for simulating the turning over of a wind power equipment. The method includes: pre-establishing models of a bridge crane and a pre-turned wind power equipment in a three-dimensional simulation software; creating an auxiliary rotating device; positioning the wind power equipment to the initial turning over position; placing the auxiliary rotating device at the connection of the wind power equipment and attaching it to the wind power equipment; positioning the shackle and the sling to attach to the rotating shaft of the auxiliary rotating device respectively; adjusting the main hoist and the auxiliary hoist of the bridge crane to the lifting position; determining the posture of the main hoist, the auxiliary hoist and the auxiliary rotating device at the initial turning over position; keeping the cable length of the auxiliary hoist unchanged, rotating the wind power equipment to the next position at a predetermined angle; adjusting the main hoist and the sling to cooperate with the rotated wind power equipment; determining the posture of the main hoist, the auxiliary hoist and the auxiliary rotating device at the predetermined turning over angle; and repeating the above-mentioned rotation and adjustment steps until the wind power equipment turns over to a vertical position. Thus, the turning over action of the wind power equipment can be simulated.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of wind power generation, and in particular to a turning simulation method for wind power equipment. Background Art

[0002] Among the energy forms in my country, electricity is the cleanest and most convenient, and has become the lifeblood of my country's economy. At present, the power sources used in my country's power system are mainly thermal power generation and hydropower generation. However, thermal power generation will cause a series of environmental problems during the power generation process, such as the greenhouse effect caused by the production of a large amount of carbon dioxide and environmental pollution caused by sulfur dioxide. In response to the above problems, China has promised the world that carbon emissions will be reduced by 40%-50% in the next ten years. Optimizing the energy structure and developing renewable energy are important conditions for realizing this promise.

[0003] Wind energy has attracted extensive attention from experts around the world due to its clean and convenient characteristics among various renewable energy sources in the world. As a result, the wind power industry has also developed rapidly, and the demand for wind turbine design has also increased. The growing market has further improved the efficiency of the installation process. During the installation of wind turbines in the workshop, there are many key steps for turning over large parts, but the installation site is relatively complicated, which may lead to difficulties in on-site execution due to inconsideration. In order to further improve the efficiency of assembly and installation, the call for process simulation has been further expanded. However, due to the backward development of modeling and simulation technology and tools in the wind power industry, the modeling and simulation technology of wind turbines is the basic work and condition for its research. Summary of the invention

[0004] The purpose of the embodiment of the present invention is to provide a method for simulating the turning over of a wind power equipment, which can simulate the turning over action of a large wind power equipment under the condition of cooperation between the main crane and the auxiliary crane of a bridge crane.

[0005] One aspect of an embodiment of the present invention provides a method for simulating the turning over of a wind power equipment. The method comprises: pre-establishing models of a bridge crane and a pre-turned wind power equipment in a three-dimensional simulation software; creating an auxiliary rotating device; positioning the wind power equipment to the initial turning over position; placing the auxiliary rotating device at the connection of the wind power equipment and attaching it to the wind power equipment; positioning and attaching the shackle and the sling to the rotating shaft of the auxiliary rotating device respectively; adjusting the main hoist and the auxiliary hoist of the bridge crane to the lifting position; determining the posture of the main hoist, the auxiliary hoist and the auxiliary rotating device at the initial turning over position; keeping the cable length of the auxiliary hoist unchanged, rotating the wind power equipment to a predetermined angle to the next position; adjusting the main hoist and the sling to cooperate with the rotated wind power equipment; determining the posture of the main hoist, the auxiliary hoist and the auxiliary rotating device at the predetermined turning over angle; and repeating the above-mentioned rotation and adjustment steps until the wind power equipment turns over to a vertical position.

[0006] Furthermore, the three-dimensional simulation software includes Process Simulate process simulation software.

[0007] Furthermore, the method also includes: defining the bridge crane as a device in the three-dimensional simulation software, and the bridge crane defines a transverse motion mechanism and a longitudinal motion mechanism.

[0008] Furthermore, the method also includes: defining the main hoist and the auxiliary hoist as tools respectively; defining the cables of the main hoist and the auxiliary hoist as several sections; connecting the several sections of the cables of the main hoist and the auxiliary hoist using linear motion pairs respectively; and controlling the extension and retraction of the main hoist and the auxiliary hoist by means of the linear motion pairs.

[0009] Furthermore, the auxiliary rotating equipment includes two sets, and placing the auxiliary rotating equipment at the connection of the wind power equipment and attaching it to the wind power equipment includes: placing the two sets of the auxiliary rotating equipment at the connection on opposite sides of the wind power equipment respectively; attaching the auxiliary rotating equipment to the turning tooling on opposite sides of the wind power equipment; and attaching the turning tooling of the wind power equipment to the wind power equipment.

[0010] Furthermore, positioning the shackle on the auxiliary rotating device includes: aligning the shackle's own coordinate system with the rotation axis of the lifting hole of the turning tool of the wind power equipment; and aligning the rotation axis of the auxiliary rotating device with the shackle's own coordinate system.

[0011] Furthermore, adjusting the main hoist and the auxiliary hoist of the bridge crane to the lifting position includes: adjusting the center of gravity connection line of the main hoist and the auxiliary hoist of the bridge crane to pass through the turning tool lifting hole of the wind power equipment positioned at the initial turning position.

[0012] Furthermore, the adjustment of the main hoist and the sling to cooperate with the rotated wind power equipment includes: adjusting the center line of the auxiliary hoist sling to coincide with the center of gravity connection line of the auxiliary hoist; adjusting the center of gravity connection line of the main hoist to pass through the turning tooling lifting hole of the rotated wind power equipment; and adjusting the center line of the main hoist sling to coincide with the center of gravity connection line of the main hoist.

[0013] Furthermore, the method further comprises: connecting the operations at various positions in a sequence editor of the three-dimensional simulation software.

[0014] Furthermore, determining the posture at each position includes: recording the rotation angle and length of the main hanger, the rotation angle of the auxiliary hanger, and the center of gravity coordinates of the wind power equipment in each posture.

[0015] Furthermore, the method further comprises: when the wind power equipment continues to be turned over to 180 degrees, loosening the hook of the main crane; and connecting the hook of the main crane to the turning hoisting point on the other side of the wind power equipment.

[0016] The turning over simulation method of the wind power equipment in the embodiment of the present invention can utilize three-dimensional simulation software to use the main and auxiliary hooks of the bridge crane to simulate the turning over process of the wind power equipment. The use of this innovative method for process simulation can fully improve the authenticity of the simulation process, improve the effectiveness of the output results, and enhance the guiding significance of the simulation results. It can truly reflect the value of the application of simulation software, and can truly improve the R&D efficiency of the enterprise, reduce manufacturing costs, and shorten the entire product life cycle.

[0017] The simulation result of the turning simulation method of the wind power equipment according to the embodiment of the present invention is of great significance to the early design process layout planning, and more importantly, it is of great guiding significance to the subsequent actual installation.

[0018] The turning simulation method of the wind power equipment in the embodiment of the present invention can visualize the complex process after simulating the installation process using process simulation, which is convenient for workshop briefing and actual process installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a flow chart of a method for simulating the turning over of a wind power device according to an embodiment of the present invention;

[0020] Figures 2 to 13 This is a diagram of the operation interface of a turning simulation method for wind power equipment in a three-dimensional simulation software according to an embodiment of the present invention;

[0021] Fig.14 This is a table recording data values ​​corresponding to various postures according to an embodiment of the present invention. DETAILED DESCRIPTION

[0022] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Instead, they are merely examples of devices consistent with some aspects of the present invention as detailed in the appended claims.

[0023] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, words such as "one" or "one" do not indicate quantity restrictions, but indicate that there is at least one. "Multiple" or "several" means two or more. Unless otherwise specified, words such as "front", "rear", "lower" and / or "upper" are only for convenience of explanation and are not limited to one position or one spatial orientation. Words such as "include" or "comprise" mean that the elements or objects appearing in front of "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" are not limited to physical or mechanical connections, and can include electrical connections, whether direct or indirect. The singular forms "a", "said" and "the" used in the present specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0024] The embodiment of the present invention provides a method for simulating the turning over of a wind power device. The method for simulating the turning over of a wind power device in the embodiment of the present invention utilizes a three-dimensional simulation software, such as Process Simulate process simulation software, to simulate the turning over process of the wind power device that needs to be realistically displayed. By simulating the entire turning over process of the wind power device, problems that may occur during the turning over process can be discovered in advance. Through the simulation of the turning over process, the feasibility of actually turning over the wind power device in the workshop of the wind turbine generator set can be verified, and then the entire turning over process of the wind power device can be continuously optimized by continuously adjusting the turning over operation parameters.

[0025] Figure 1 A flow chart of a method for simulating the turning over of a wind power plant according to an embodiment of the present invention is disclosed. Figure 1 As shown, a method for simulating the turning over of a wind power equipment according to an embodiment of the present invention may include steps S1 to S11.

[0026] In step S1 , models of the bridge crane and the pre-turned wind turbine are pre-established in 3D simulation software.

[0027] In one embodiment, the three-dimensional simulation software includes, for example, Process Simulate process simulation software.

[0028] In three-dimensional simulation software, such as Process Simulate process simulation software, the bridge crane is defined as equipment, and the bridge crane defines the lateral motion mechanism and the longitudinal motion mechanism.

[0029] In step S2, an auxiliary rotation device is created.

[0030] In step S3, the wind power equipment is positioned to an initial turning position.

[0031] In step S4, the auxiliary rotating device is placed at a connection of the wind power device and attached to the wind power device.

[0032] The auxiliary rotating equipment includes two sets, and placing the auxiliary rotating equipment at the connection of the wind power equipment and attaching it to the wind power equipment in step S4 may include: placing the two sets of auxiliary rotating equipment at the connection on opposite sides of the wind power equipment respectively; attaching the auxiliary rotating equipment to the turning tooling on opposite sides of the wind power equipment; and attaching the turning tooling of the wind power equipment to the wind power equipment.

[0033] In step S5, the shackle and the sling are positioned and attached to the rotating shaft of the auxiliary rotating device respectively.

[0034] In some embodiments, positioning the shackle on the auxiliary rotating device in step S5 may include: aligning the shackle's own coordinate system with the rotation axis of the lifting hole of the turning tool of the wind power equipment; and aligning the rotation axis of the auxiliary rotating device with the shackle's own coordinate system.

[0035] In step S6, the main hoist and the auxiliary hoist of the bridge crane are adjusted to the hoisting position.

[0036] In some embodiments, adjusting the main hoist and auxiliary hoist of the bridge crane to the lifting position in step S6 may include: adjusting the center of gravity connection line of the main hoist and auxiliary hoist of the bridge crane to pass through the lifting hole of the turning tooling of the wind power equipment positioned at the initial turning position.

[0037] In step S7, the postures of the main hanger, the auxiliary hanger and the auxiliary rotating device at the initial turning position are determined.

[0038] In step S8, the length of the auxiliary suspension cable is kept unchanged, and the wind power equipment is rotated by a predetermined angle to the next position.

[0039] In step S9, the main hoist and the sling are adjusted to match the rotated wind power equipment.

[0040] In some embodiments, the adjustment of the main hoist and the sling to coordinate with the rotated wind power equipment in step S9 may include: adjusting the center line of the auxiliary hoist sling to coincide with the center of gravity connection line of the auxiliary hoist; adjusting the center of gravity connection line of the main hoist to pass through the lifting hole of the turning tooling of the rotated wind power equipment; adjusting the center line of the main hoist sling to coincide with the center of gravity connection line of the main hoist.

[0041] In step S10, the postures of the main suspension, the auxiliary suspension and the auxiliary rotating device at a predetermined turning angle are determined.

[0042] Determining the posture at each position in step S7 and step S10 may include: recording the rotation angle and length of the main crane, the rotation angle of the auxiliary crane, and the center of gravity coordinates of the wind power equipment in each posture.

[0043] In step S11, the above steps S8 to S10 are repeated until the wind power equipment is turned over to a vertical position.

[0044] In some embodiments, when the wind power equipment continues to be turned over to 180 degrees, the turning simulation method of the wind power equipment in the embodiment of the present invention may also include: loosening the hook of the main crane; and connecting the hook of the main crane to the turning hoisting point on the other side of the wind power equipment.

[0045] The following will be combined Figures 2 to 14 The operation process of the turning over simulation method of the wind power equipment according to the embodiment of the present invention will be described in detail.

[0046] Figures 2 to 13 The invention discloses an operation interface diagram of a method for simulating the turning over of a wind power device in three-dimensional simulation software according to an embodiment of the present invention.

[0047] 1. Define bridge crane equipment

[0048] 1.1 In the Process Simulate process simulation software, the bridge crane is defined as equipment, and the bridge crane defines the lateral motion mechanism and the longitudinal motion mechanism. Therefore, the lateral motion mechanism and the longitudinal motion mechanism can be used to simulate the actual movement of the crane, that is, up and down movement and left and right movement, such as Figure 2 ( Figure 2 The following figure shows the operation interface for defining the device.

[0049] 1.2 In the Process Simulate process simulation software, the main hoist and auxiliary hoist of the bridge crane are defined as tools. The main hoist and auxiliary hoist include hooks and cables respectively.

[0050] In order to realistically simulate the cables of the main hoist and the auxiliary hoist, the cables of the main hoist and the auxiliary hoist can be divided into several sections and defined, and the several sections of the cables of the main hoist and the auxiliary hoist can be connected using linear motion pairs. The linear motion pairs can be used to control the length of the cables of the main hoist and the auxiliary hoist, and then to control the extension and retraction of the main hoist and the auxiliary hoist.

[0051] 1.3 is to simulate the turning motion process of wind turbine equipment, such as Figure 3 ( Figure 3 As shown in the operation interface for creating the auxiliary rotating device Sim_Rev_Device, an auxiliary rotating device is created in the Process Simulate process simulation software and defined as a rotating motion mechanism, for example, it can be named Sim_Rev_Device. Since the auxiliary rotating device is only used for simulation, there is no model in the device, only a rotating motion mechanism.

[0052] 2. Adjust the initial position and perform motion sub-links to establish attachment relationships

[0053] 2.1 For example, the wind turbine equipment is a front frame. Taking the turning over of the front frame as an example, the front frame is positioned to the initial turning position, such as Figure 4 ( Figure 4 The auxiliary rotating device Sim_Rev_Device is placed at the connection of the front frame and attached to the front frame, and the shackle and the sling are attached to the rotating shaft of the auxiliary rotating device Sim_Rev_Device, so that the shackle and the sling can rotate with the rotation of the auxiliary rotating device Sim_Rev_Device.

[0054] 2.2 Attach the auxiliary rotation device Sim_Rev_Device to the turning tooling of the front frame, and attach the turning tooling of the front frame to the front frame.

[0055] 3. Specific turning operation

[0056] Each time the front frame rotates a predetermined angle, for example, 5°, a set of operations is performed until it is turned over to a vertical position (90°), a total of 90 / 5=18 sets of operations.

[0057] 3.1 Adjust the main hoist, auxiliary hoist, bridge crane and auxiliary rotating equipment to the lifting position. Determine the initial position of the turn-over, measure the auxiliary hoist length and the total length of the sling shackle to be 20562mm, and Figure 5 ( Figure 5 The known conditions shown in the figure (showing the position conditions) are solved to obtain the main suspension rotation angle of 3.59° and the length of 21612mm, as well as the auxiliary suspension rotation angle of 1.04°.

[0058] 3.2 As Figure 6 ( Figure 6 Shown is the front frame POS1) and Figure 7 ( Figure 7 As shown in Sim_Rev_DevicePOS1), the posture of the starting position of the turn over is set, including the main hanging POS1, the auxiliary hanging POS1, and the Sim_Rev_DevicePOS1.

[0059] 3.3 As Figure 8 ( Figure 8 As shown in the figure, the front frame rotates -5°, the front frame rotates 5°, and the length of the auxiliary suspension cable remains unchanged.

[0060] 3.4 The solution is that the main suspension rotation angle is 3.79° and the length is 21356 mm, and the auxiliary suspension rotation angle is 1.09°. The coordinates of the center of gravity working coordinate system are (-333.5, -20724.5), such as Fig. 9 ( Fig. 9 The operation interface for creating POS2 is shown in the figure, which shows that the center of gravity connection line of the auxiliary crane coincides with the center line of the auxiliary crane sling, and the center of gravity connection line of the main crane also coincides with the center line of the connected main crane sling. After the adjustment is completed, set the posture of the position when turning over 5°, main crane POS2, auxiliary crane POS2, Sim_Rev_DevicePOS2.

[0061] 3.5 Create a new object flow operation in Process Simulate, such as Fig.10 ( Fig.10 As shown in the interface for creating a new object flow operation, select the front frame as the object, select the center of gravity coordinate system as the grasping coordinate system, select the center of gravity position as the starting point, and select the coordinate system (-333.5, -20724.5) as the end point.

[0062] 3.6 As Fig.11 ( Fig.11 As shown in the interface of newly created equipment operation, the newly created four groups of equipment operations are: main hoist, auxiliary hoist, rotation 1 and rotation 2, from POS1 to POS2 respectively. So far, the simulation of the turning process of the front frame from 0° to 5° has been completed.

[0063] 3.7 Create a combined operation "Position 1" in the Process Simulate process simulation software, and place the logistics operation and equipment operation in Position 1, such as Fig.12 ( Fig.12 The interface of the combined operation "position 1" is shown).

[0064] 3.8 Repeat steps 3.3 to 3.7 for a total of 18 sets until the front rack is turned over to the vertical position. Link each position in the sequence editor of the Process Simulate process simulation software, such as Fig.13 As shown, Fig.13 An example of a link between position 1 and position 2 in the sequence editor.

[0065] 3.9 Fig.14 A table showing data values ​​corresponding to each posture according to an embodiment of the present invention is shown. Fig.14 As shown, the main crane rotation angle, main crane length, main crane rotation angle and center of gravity coordinates corresponding to each POS under the front frame rotation angle are recorded.

[0066] 4. If you need to continue turning over to 180°, loosen the hook of the main crane and reconnect it to the lifting point of the turning tooling on the other side, and turn it over 90° in the same way.

[0067] The turning over simulation method of the wind power equipment in the embodiment of the present invention can utilize three-dimensional simulation software to use the main and auxiliary hooks of the bridge crane to simulate the turning over process of the wind power equipment. The use of this innovative method for process simulation can fully improve the authenticity of the simulation process, improve the effectiveness of the output results, and enhance the guiding significance of the simulation results. It can truly reflect the value of the application of simulation software, and can truly improve the R&D efficiency of the enterprise, reduce manufacturing costs, and shorten the entire product life cycle.

[0068] Since the entire turning over process of the wind power equipment has high requirements for space, coordination, operation, etc., the simulation results of the turning over simulation method of the wind power equipment in the embodiment of the present invention are of great significance for the early design process layout planning, and are of great guiding significance for the subsequent actual installation.

[0069] The turning simulation method of the wind power equipment in the embodiment of the present invention can visualize the complex process after simulating the installation process using process simulation, which is convenient for workshop briefing and actual process installation.

[0070] The above is a detailed introduction to the turning over simulation method of the wind power equipment provided by the embodiment of the present invention. This article uses specific examples to illustrate the turning over simulation method of the wind power equipment in the embodiment of the present invention. The description of the above embodiment is only used to help understand the core idea of ​​the present invention and is not intended to limit the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the spirit and principles of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications should also fall within the scope of protection of the claims attached to the present invention.

Claims

1. A method for simulating the turning over of a wind power plant, characterized in that: It includes: Pre-build models of bridge cranes and pre-turned wind turbine equipment in 3D simulation software; Creating an auxiliary rotating device for simulation in the three-dimensional simulation software and defining it as a rotating motion mechanism; Positioning the wind power equipment to an initial turning position; Placing the auxiliary rotating device at the connection of the wind power equipment and attaching it to the wind power equipment; Positioning and attaching the shackle and the sling to the rotating shaft of the auxiliary rotating device respectively; Adjusting the main hoist and auxiliary hoist of the bridge crane to the hoisting position; Determining the postures of the main crane, the auxiliary crane and the auxiliary rotating device at the initial position of the turning over; Keeping the length of the auxiliary suspension cable unchanged, the wind power equipment is rotated to a next position by a predetermined angle; Adjusting the main hoist and the sling to match the rotated wind power equipment; Determining the postures of the main crane, the auxiliary crane and the auxiliary rotating device at a predetermined turning angle; as well as The above-mentioned rotating and adjusting steps are repeated until the wind power equipment is turned over to a vertical position.

2. The method according to claim 1, characterized in that: The three-dimensional simulation software includes Process Simulate process simulation software.

3. The method according to claim 1, characterized in that: Also includes: The bridge crane is defined as equipment in the three-dimensional simulation software, and the bridge crane defines a transverse motion mechanism and a longitudinal motion mechanism.

4. The method according to claim 1, characterized in that: Also includes: The main crane and the auxiliary crane are defined as tools respectively; The cables of the main hoist and the auxiliary hoist are divided into several sections and defined; Connecting the cable sections of the main hoist and the auxiliary hoist respectively using linear motion pairs; and The extension and retraction of the main suspension and the auxiliary suspension are controlled by the linear motion pair.

5. The method according to any one of claims 1 to 4, characterized in that: The auxiliary rotating device comprises two sets, and the step of placing the auxiliary rotating device at the connection of the wind power equipment and attaching the auxiliary rotating device to the wind power equipment comprises: Placing two sets of the auxiliary rotating equipment at the connection points on opposite sides of the wind power equipment respectively; Attaching the auxiliary rotating device to turning tools on opposite sides of the wind turbine; and The turning tool of the wind power equipment is attached to the wind power equipment.

6. The method according to claim 5, characterized in that: Positioning the shackle on the auxiliary rotating device includes: The coordinate system of the shackle is made to coincide with the rotation axis of the lifting hole of the turning tool of the wind power equipment; and The rotation axis of the auxiliary rotation device is made to coincide with the own coordinate system of the shackle.

7. The method according to claim 6, characterized in that: The adjusting the main hoist and the auxiliary hoist of the bridge crane to the hoisting position comprises: The center-of-gravity connection line of the main hoist and the auxiliary hoist of the bridge crane is adjusted to pass through the lifting hole of the turning tool of the wind power equipment positioned at the initial position of the turning.

8. The method according to claim 6, characterized in that: The adjusting the main suspension and the suspension belt to cooperate with the rotated wind power equipment includes: Adjust the center line of the auxiliary lifting sling to coincide with the center of gravity connection line of the auxiliary lifting; Adjust the center of gravity connection line of the main crane to pass through the lifting hole of the turning tool of the wind power equipment after rotation; and Adjust the center line of the main hoist sling to coincide with the center of gravity connection line of the main hoist.

9. The method according to any one of claims 1 to 4, characterized in that: Also includes: The operations at each position are connected in the sequence editor of the three-dimensional simulation software.

10. The method according to any one of claims 1 to 4, characterized in that: Determining the pose at each position involves: The rotation angle and length of the main hanger, the rotation angle of the auxiliary hanger and the center of gravity coordinates of the wind power equipment are recorded in each posture.

11. The method according to any one of claims 1 to 4, characterized in that: Also includes: When the wind power equipment is further turned over to 180 degrees, the hook of the main crane is released; and Connect the hook of the main crane to the turning hoisting point on the other side of the wind power equipment.

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