Wind turbine generator load simulation system and simulation method based on Bladed and Matlab

Abstract

The invention discloses a wind turbine generator load simulation system and simulation method based on Bladed and Matlab, and the simulation system comprises a Bladed model initialization configuration module which is used for loading different Bladed wind turbine generator models; the Matlab model parameter configuration module is used for loading a corresponding parameter file in the Simulink model; the wind turbine generator load working condition configuration module is used for selecting working conditions; the control program and parameter configuration module is used for loading a Bladed wind turbine generator main control program, a Matlab wind turbine generator converter program and respective control parameters; and the calculation module is used for analyzing and calculating the load and analyzing the control performance. According to the method, batch efficient simulation of the wind turbine generator load can be realized, and a visual interface is provided.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of wind power, and in particular to a wind turbine load simulation system and a simulation method based on Bladed and Matlab. Background Art

[0002] A key link in the design and operation of wind turbines is to conduct detailed load analysis to ensure the rationality and safety of the unit design. At present, the industry mostly relies on a single simulation software Bladed for calculations. Bladed is a professional software in the field of wind turbine simulation. Although it has certain advantages in detailed load analysis, it lacks meticulousness in the modeling of wind turbine electrical related modules.

[0003] At present, the existing technology has made certain progress in joint simulation and load analysis, mainly including the following aspects: in terms of the communication interface between Matlab and Bladed, a visual interactive interface has been established, which can be used to modify the interface communication parameters; in terms of wind turbine load analysis, mature batch load calculation and analysis methods and tools have been established for the simulation of a single Bladed software.

[0004] However, the prior art still has the following two deficiencies:

[0005] 1. The load calculation of wind turbines is usually simulated using a single software Bladed. However, this software cannot perform detailed modeling in the electrical part, and cannot effectively evaluate the load of the unit caused by advanced control strategies such as grid-type converters with active support responses. Although the refined joint simulation model built using Matlab and Bladed has certain advantages, the existing simulation method can only handle a single task and cannot achieve large-scale, multi-condition batch load calculation and analysis.

[0006] 2. In the current technology, an effective joint simulation model has not yet been established for wind turbine load calculation. For key main control parameters and converter control parameters, a unified and batch simulation visualization interface has not been provided. At present, simulation tasks and parameters still need to be set in Bladed and Matlab respectively. The lack of automation and batch processing capabilities leads to low simulation efficiency and difficulty in achieving efficient collaborative simulation and optimization. Summary of the invention

[0007] In view of the technical problems existing in the prior art, the present invention provides a wind turbine load simulation system and simulation method based on Bladed and Matlab, which can efficiently realize batch analysis and simulation of loads.

[0008] In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0009] A wind turbine load simulation system based on Bladed and Matlab, comprising a Bladed model initialization configuration module, a Matlab model parameter configuration module, a wind turbine load condition configuration module, a control program and parameter configuration module, and a calculation module;

[0010] The Bladed model initialization configuration module is used to load different Bladed wind turbine models;

[0011] The Matlab model parameter configuration module is used to load the corresponding parameter file in the Simulink model;

[0012] The wind turbine load condition configuration module is used to select a standard condition or a custom condition;

[0013] The control program and parameter configuration module is used to load the Bladed wind turbine master control program, the Matlab wind turbine converter program and their respective control parameters corresponding to the Bladed wind turbine model;

[0014] The calculation module is responsible for load analysis and calculation, as well as control performance analysis.

[0015] Preferably, the calculation module includes a load calculation module and a control performance analysis module; the load calculation module is responsible for load analysis and calculation; the control performance analysis module is used to analyze the control performance.

[0016] The present invention also discloses a simulation method based on the wind turbine load simulation system based on Bladed and Matlab as described above, comprising the steps of:

[0017] Step S1: Bladed model initialization file configuration: start the Blade software, load the corresponding project file of the mechanical part of the wind turbine, and run a Bladed model calculation;

[0018] Step S2: Bladed load condition table generation: according to the standard of the wind turbine load condition and the corresponding Bladed initialization file parameters, a corresponding load condition table is generated, and calculation is performed on the condition table;

[0019] Step S3: Establishing Matlab model and communication module: In Matlab / Simulink software, load the corresponding wind turbine electrical and communication models and their parameter files;

[0020] Step S4: controller loading and control parameter configuration: loading the packaged main control program and converter control program;

[0021] Step S5: Batch operation.

[0022] Preferably, in step S3, the electromagnetic torque, time, grid frequency and change rate of the communication model are used as inputs of Bladed, and the outputs of Bladed include torque command, rotation speed, wind speed and time.

[0023] Preferably, in step S4, the main control program is a DLL file callable by Bladed, and the converter control program is a MEX file callable by Matlab / Simulink.

[0024] Preferably, the specific process of step S5 is:

[0025] S5.1: Use Matlab to read the configured load condition table;

[0026] S5.2: Based on the load condition table, identify the initialization parameters of the loaded Bladed wind turbine mechanical part model;

[0027] S5.3: locate the identified parameters and replace them with specific parameters required in the corresponding working conditions;

[0028] S5.4: Read the loaded Matlab model and its parameters;

[0029] S5.5: Create a Bat file for batch simulation based on the path of the loaded Bladed model initialization file;

[0030] S5.6: Use DOS command to run the Bat file, start the Bladed program, and run the mechanical model of the wind turbine;

[0031] S5.7: Use the set_param command to start the loaded wind turbine electrical model based on Matlab / Simulink;

[0032] S5.8: According to the load condition table, create folders corresponding to the conditions and save the data to the corresponding folders.

[0033] Preferably, in step S5.2, the variable names and parameter values ​​in the load condition table are extracted, and the initialization parameters of the mechanical part model of the Bladed wind turbine are identified and modified through the variable names and parameter values.

[0034] Preferably, the mechanical model based on Bladed and the electrical model based on Matlab are communicated via UDP socket, and the communication interface is called in the form of a dynamic link library (DLL).

[0035] The present invention further discloses an application method of a wind turbine load simulation system based on Bladed and Matlab, comprising the steps of:

[0036] 1) Start the Bladed software, open the mechanical model of the wind turbine, and run the Bladed simulation;

[0037] 2) Locate the Dtbladed.in file in the Bladed installation directory;

[0038] 3) Start the graphical user interface script of Matlab software and load the Dtbladed.in file as the initialization file of Bladed;

[0039] 4) After loading is completed, according to the instructions of the GUI interface, load the Bladed communication program, Matlab model, Matlab model parameter file, main control program and converter control program respectively;

[0040] 5) Fill in the main control parameters and converter parameters, or provide the paths of the main control parameter files and converter parameter files;

[0041] 6) Select the working condition for load simulation;

[0042] 7) Confirm whether control performance analysis is needed;

[0043] 8) Click the "Start" button and confirm the operation;

[0044] 9) Wait for the simulation to complete. The data will be saved automatically after the simulation is completed.

[0045] Preferably, when confirming whether to perform control performance analysis, if this option is not selected, simulation is performed according to standard load conditions or custom load conditions; if this option is selected, the software simulation will use the first custom condition by default, and automatically arrange and combine the control variable name, maximum value, minimum value and step size filled in by the user, and perform the simulation in sequence.

[0046] Compared with the prior art, the advantages of the present invention are:

[0047] The invention provides a method for realizing batch load of wind turbines based on Bladed and Matlab joint simulation, which fills the gap in load calculation and analysis of wind turbine joint simulation models. The method uniformly configures the whole machine control and converter control programs through a visual interface, providing a unified platform for optimizing the operating characteristics and safety of wind turbines. This joint simulation method not only improves the accuracy and comprehensiveness of load analysis, but also simplifies the simulation process, and adapts to the complex requirements of large-scale wind turbine design and optimization.

[0048] The method for realizing batch load of wind turbine generators based on Bladed and Matlab joint simulation of the present invention can directly realize the load simulation of all working conditions of wind turbine generators under joint simulation, as well as batch simulation of specified working conditions. This method not only expands the application scope of the prior art, but also improves the efficiency and accuracy of simulation.

[0049] The Matlab GUI interface in the present invention provides a visual control program interface solution, simplifies the operation process, and establishes an open control parameter configuration interface. The interface can realize batch simulation of multiple control methods and parameters under different working conditions. Through this platform, the coordination between the whole machine control of the wind turbine set and the converter control can be realized, and the response and load analysis of the wind turbine set under different parameters can be performed, providing a unified and efficient simulation platform.

[0050] The present invention provides a visual user interface for the joint simulation model of Bladed and Matlab, which can realize batch simulation of wind turbines under various working conditions, and can select and set specific simulation working conditions to perform batch load simulation. Through the open control interface, the user can flexibly configure and adjust various control programs and parameters. The openness and flexibility of the interface enable the user to conveniently perform the collaborative simulation of the whole machine control and converter control of the wind turbine, providing a unified platform for optimizing the operating characteristics and safety of the wind turbine.

[0051] The present invention combines Matlab with Bladed, can efficiently realize load analysis, adapt to the design and optimization requirements of large-scale wind turbines, can realize batch simulation of wind turbine loads, and provide a visual interface. The batch realization method of wind turbine loads based on Bladed and Matlab joint simulation provided by the present invention can directly realize full-operating load simulation of wind turbines in a joint simulation environment, as well as batch simulation for specific operating conditions.

[0052] The present invention provides a control program interface solution with visual configuration through the GUI interface in Matlab, which not only simplifies the operation process, but also constructs an open control parameter configuration interface; using this interface, batch simulation of different control methods and parameters under specific working conditions can be realized, which provides a unified platform for the coordinated cooperation between the whole machine control of the wind turbine set and the converter control, as well as the response and load analysis of the wind turbine set under different parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 It is a diagram showing an embodiment of the load simulation system of the present invention in a specific application.

[0054] Figure 2The figure is a flow chart of the load simulation method of the present invention in a specific application.

[0055] Figure 3 This is the load calculation interface diagram of the present invention.

[0056] Figure 4 This is a control performance analysis interface diagram of the present invention. DETAILED DESCRIPTION

[0057] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0058] like Figure 1 As shown, the wind turbine load simulation system based on Bladed and Matlab provided by the embodiment of the present invention mainly includes the following key modules: Bladed model initialization configuration module, Matlab model parameter configuration module, wind turbine load condition configuration module, control program and parameter configuration module, and calculation module;

[0059] Bladed model initialization configuration module: This module is used to load different Bladed wind turbine models, supports the initialization configuration of multiple turbine models, and provides basic data for subsequent simulations;

[0060] Matlab model parameter configuration module: This module is used to load the corresponding parameter file in the Simulink model to ensure the accuracy and consistency of each parameter during the simulation process;

[0061] Wind turbine load condition configuration module: This module includes the selection of IEC 61400-1 standard conditions and the selection of custom conditions; when the standard conditions are selected, the system will generate a calculation condition table with clear parameter definitions and perform batch simulations on all conditions; when the custom conditions are selected, users can import external files to perform batch simulations of a custom number of conditions, flexibly responding to different simulation requirements.

[0062] Control program and parameter configuration module: This module is used to load the Bladed wind turbine master control program, Matlab wind turbine converter program and their respective control parameters corresponding to the model; it provides an open interface, allowing users to perform batch simulation under different control parameters, and conveniently and flexibly adjust and optimize the simulation scheme;

[0063] Calculation module: This module includes a load calculation module and a control performance analysis module; the load calculation module is responsible for load analysis and calculation; the control performance analysis module is used to perform a detailed analysis of control performance.

[0064] The embodiment of the present invention further provides a simulation method of a wind turbine load simulation system based on Bladed and Matlab, comprising the steps of:

[0065] Step S1: Bladed model initialization file configuration

[0066] Start the Blade software, load the corresponding project file of the mechanical part of the wind turbine, and run a Blade model calculation. Obtain the Blade initialization file in the software installation directory. The default name of the file is DTBLADED.IN;

[0067] Step S2: Bladed load condition table generation

[0068] According to the IEC 61400-1 standard for wind turbine load conditions and the corresponding Bladed initialization file parameters, the corresponding load condition table is generated, and only the necessary calculations are performed for this condition table;

[0069] Step S3: Matlab model and communication module establishment

[0070] In Matlab / Simulink software, load the corresponding wind turbine electrical and communication models and their parameter files. Among them, the electromagnetic torque, time, grid frequency and change rate of the electrical model of the communication part are used as the input of Bladed, and the output of Bladed includes torque command, speed, wind speed and time. The Bladed communication module can be directly loaded through the visual interface. The joint simulation between the mechanical model based on Bladed and the electrical model based on Matlab is realized through UDP socket communication, and the communication interface is called in the form of dynamic link library (DLL).

[0071] Step S4: Controller loading and control parameter configuration

[0072] Load the packaged master control program and converter control program. The master control program is usually a DLL file that can be called by Bladed, while the converter control program is usually a MEX file that can be called by Matlab / Simulink. The control parameter part can be filled in directly or the control parameter file can be selected. The batch processing software can automatically identify the input content and make corresponding judgments based on the input content.

[0073] Step S5: Batch operation

[0074] The logic of batch operation is as follows:

[0075] S5.1: Use Matlab to read the configured load condition table;

[0076] S5.2: Based on the load condition table, identify the initialization parameters of the loaded Bladed wind turbine mechanical part model;

[0077] S5.3: locate the identified parameters and replace them with specific parameters required in the corresponding working conditions;

[0078] S5.4: Read the loaded Matlab model and its parameters;

[0079] S5.5: Create a Bat file for batch simulation based on the path of the loaded Bladed model initialization file;

[0080] S5.6: Use DOS command to run the Bat file, start the Bladed program, and run the mechanical part model of the wind turbine;

[0081] S5.7: Use the set_param command to start the loaded wind turbine electrical model based on Matlab / Simulink;

[0082] S5.8: According to the load condition table, create folders corresponding to the conditions and save the data to the corresponding folders.

[0083] Specifically, the existing Bladed wind turbine model is first simulated and started to obtain the Bladed initialization parameter file of the mechanical part of the wind turbine. Then, the Bladed initialization parameter file and the load condition configuration table are read by Matlab software, and the variable names and parameter values ​​in the load condition configuration table are extracted. Subsequently, the Bladed initialization parameter file is identified and modified by the extracted variable names and parameter values. In addition, the paths of the main control program and the communication program are read, and the Bladed initialization parameter file is automatically identified and modified. After that, the parameters of the main control program are read, and the ".in" file required for Bladed simulation is automatically converted and generated. At this point, the configuration of the Bladed part is completed. Next, the loaded Matlab model and its parameters are read to complete the configuration of the Matlab part. Subsequently, a Bat file for batch simulation is created based on the path of the loaded Bladed model initialization file. The Bat file is run using the DOS command to start the Bladed program and run the mechanical part model of the wind turbine. At the same time, the set_param command is used to start the loaded wind turbine electrical model based on Matlab / Simulink. Finally, a folder corresponding to the load condition table is created and the simulation data is saved in the corresponding folder.

[0084] like Figure 2 As shown, an embodiment of the present invention provides an application method of a wind turbine load simulation system based on Bladed and Matlab, and the method mainly includes the following steps:

[0085] 1) Start the Bladed software, open the mechanical model of the wind turbine, and run the Bladed simulation;

[0086] 2) Locate the Dtbladed.in file in the Bladed installation directory;

[0087] 3) If Figure 3 As shown, the graphical user interface (GUI) script of Matlab software is then started to load the Dtbladed.in file as the initialization file of Bladed;

[0088] 4) After loading is completed, according to the instructions of the GUI interface, load the Bladed communication program, Matlab model, Matlab model parameter file, main control program and converter control program respectively;

[0089] 5) Fill in the main control parameters and converter parameters, or provide the paths of the main control parameter files and converter parameter files;

[0090] 6) Select the working condition for load simulation;

[0091] 7) Confirm whether control performance analysis is needed;

[0092] 8) Click the "Start" button and confirm the operation;

[0093] 9) Wait for the simulation to complete. The data will be saved automatically after the simulation is completed.

[0094] Furthermore, if Figure 4 As shown, when confirming whether to perform control performance analysis, if this option is not selected, the system will simulate the IEC61400-1 standard load condition or the user-defined load condition selected by the user; if this option is selected, the software simulation will use the first user-defined condition by default, and automatically arrange and combine the control variable name, maximum value, minimum value and step size filled in by the user, and execute the simulation in sequence.

[0095] The invention provides a method for realizing batch load of wind turbines based on Bladed and Matlab joint simulation, which fills the gap in load calculation and analysis of wind turbine joint simulation models. The method uniformly configures the whole machine control and converter control programs through a visual interface, providing a unified platform for optimizing the operating characteristics and safety of wind turbines. This joint simulation method not only improves the accuracy and comprehensiveness of load analysis, but also simplifies the simulation process, and adapts to the complex requirements of large-scale wind turbine design and optimization.

[0096] The method for realizing batch load of wind turbine generators based on Bladed and Matlab joint simulation of the present invention can directly realize the load simulation of all working conditions of wind turbine generators under joint simulation, as well as batch simulation of specified working conditions. This method not only expands the application scope of the prior art, but also improves the efficiency and accuracy of simulation.

[0097] The Matlab GUI interface in the present invention provides a visual control program interface solution, simplifies the operation process, and establishes an open control parameter configuration interface. The interface can realize batch simulation of multiple control methods and parameters under different working conditions. Through this platform, the coordination between the whole machine control of the wind turbine set and the converter control can be realized, and the response and load analysis of the wind turbine set under different parameters can be performed, providing a unified and efficient simulation platform.

[0098] The present invention provides a visual user interface for the joint simulation model of Bladed and Matlab, which can realize batch simulation of wind turbines under various working conditions, and can select and set specific simulation working conditions to perform batch load simulation. Through the open control interface, the user can flexibly configure and adjust various control programs and parameters. The openness and flexibility of the interface enable the user to conveniently perform the collaborative simulation of the whole machine control and converter control of the wind turbine, providing a unified platform for optimizing the operating characteristics and safety of the wind turbine.

[0099] The present invention combines Matlab with Bladed, can efficiently realize load analysis, adapt to the design and optimization requirements of large-scale wind turbines, can realize batch simulation of wind turbine loads, and provide a visual interface. The batch realization method of wind turbine loads based on Bladed and Matlab joint simulation provided by the present invention can directly realize full-operating load simulation of wind turbines in a joint simulation environment, as well as batch simulation for specific operating conditions.

[0100] The present invention provides a control program interface solution with visual configuration through the GUI interface in Matlab, which not only simplifies the operation process, but also constructs an open control parameter configuration interface; using this interface, batch simulation of different control methods and parameters under specific working conditions can be realized, which provides a unified platform for the coordinated cooperation between the whole machine control of the wind turbine set and the converter control, as well as the response and load analysis of the wind turbine set under different parameters.

[0101] The above are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.

Claims

1. A wind turbine load simulation system based on Bladed and Matlab, characterized in that: It includes Bladed model initialization configuration module, Matlab model parameter configuration module, wind turbine load condition configuration module, control program and parameter configuration module, and calculation module; The Bladed model initialization configuration module is used to load different Bladed wind turbine models; The Matlab model parameter configuration module is used to load the corresponding parameter file in the Simulink model; The wind turbine load condition configuration module is used to select a standard condition or a custom condition; The control program and parameter configuration module is used to load the Bladed wind turbine master control program, the Matlab wind turbine converter program and their respective control parameters corresponding to the Bladed wind turbine model; The calculation module is responsible for load analysis and calculation, as well as control performance analysis.

2. The wind turbine load simulation system based on Bladed and Matlab according to claim 1, characterized in that: The calculation module includes a load calculation module and a control performance analysis module; the load calculation module is responsible for load analysis and calculation; the control performance analysis module is used to analyze the control performance.

3. A simulation method for the wind turbine load simulation system based on Bladed and Matlab according to claim 1 or 2, characterized in that: Includes steps: Step S1: Bladed model initialization file configuration: start the Blade software, load the corresponding project file of the mechanical part of the wind turbine, and run a Bladed model calculation; Step S2: Bladed load condition table generation: according to the standard of the wind turbine load condition and the corresponding Bladed initialization file parameters, a corresponding load condition table is generated, and calculation is performed on the condition table; Step S3: Establishing Matlab model and communication module: In Matlab / Simulink software, load the corresponding wind turbine electrical and communication models and their parameter files; Step S4: controller loading and control parameter configuration: loading the packaged main control program and converter control program; Step S5: Batch operation.

4. The simulation method of the wind turbine load simulation system based on Bladed and Matlab according to claim 3 is characterized in that: In step S3, the electromagnetic torque, time, grid frequency and change rate of the communication model are used as inputs of Bladed, and the outputs of Bladed include torque command, rotation speed, wind speed and time.

5. The simulation method of the wind turbine load simulation system based on Bladed and Matlab according to claim 4 is characterized in that: In step S4, the main control program is a DLL file that can be called by Bladed, and the converter control program is a MEX file that can be called by Matlab / Simulink.

6. The simulation method of the wind turbine load simulation system based on Bladed and Matlab according to claim 3, 4 or 5, characterized in that: The specific process of step S5 is: S5.1: Use Matlab to read the configured load condition table; S5.2: Based on the load condition table, identify the initialization parameters of the loaded Bladed wind turbine mechanical part model; S5.3: locate the identified parameters and replace them with specific parameters required in the corresponding working conditions; S5.4: Read the loaded Matlab model and its parameters; S5.5: Create a Bat file for batch simulation based on the path of the loaded Bladed model initialization file; S5.6: Use DOS command to run the Bat file, start the Bladed program, and run the mechanical part model of the wind turbine; S5.7: Use the set_param command to start the loaded wind turbine electrical model based on Matlab / Simulink; S5.8: According to the load condition table, create folders corresponding to the conditions and save the data to the corresponding folders.

7. The simulation method of the wind turbine load simulation system based on Bladed and Matlab according to claim 6, characterized in that: In step S5.2, the variable names and parameter values ​​in the load condition table are extracted, and the initialization parameters of the mechanical part model of the Bladed wind turbine are identified and modified through the variable names and parameter values.

8. The simulation method of the wind turbine load simulation system based on Bladed and Matlab according to claim 3, 4 or 5, characterized in that: The mechanical model based on Bladed and the electrical model based on Matlab are communicated through UDP socket, and the communication interface is called in the form of dynamic link library (DLL).

9. An application method of a wind turbine load simulation system based on Bladed and Matlab, characterized in that: Includes steps: 1) Start the Bladed software, open the mechanical model of the wind turbine, and run the Bladed simulation; 2) Locate the Dtbladed.in file in the Bladed installation directory; 3) Start the graphical user interface script of Matlab software and load the Dtbladed.in file as the initialization file of Bladed; 4) After loading is completed, according to the instructions of the GUI interface, load the Bladed communication program, Matlab model, Matlab model parameter file, main control program and converter control program respectively; 5) Fill in the main control parameters and converter parameters, or provide the paths of the main control parameter files and converter parameter files; 6) Select the working condition for load simulation; 7) Confirm whether control performance analysis is needed; 8) Click the "Start" button and confirm the operation; 9) Wait for the simulation to complete. The data will be saved automatically after the simulation is completed.

10. The application method according to claim 9, characterized in that: When confirming whether to perform control performance analysis, if this option is not selected, simulation will be performed according to standard load conditions or custom load conditions; if this option is selected, the software simulation will use the first custom condition by default, and automatically arrange and combine the control variable name, maximum value, minimum value and step size filled in by the user, and perform the simulation in sequence.

Images