基于风力机模拟器的气动—弹性耦合特性的模拟与实验
发布时间：2018-11-19 21:56
【摘要】：风力机模拟器主要用于在实验室模拟风力机运行以便开展相关的风电技术研究。模拟器一般会采用基于Cp-λ曲线的简化模型来模拟风力机的气动转矩。近年来随着大容量风力机的大规模投产,实验室对模拟大容量风力机运行以供研究的需求不断上升。然而因气动-弹性耦合特性对大容量风力机气动转矩的计算结果影响较大,采用上述简化模型已不能精准模拟其气动转矩。所以本文通过在模拟器上实现气动-弹性耦合特性的模拟,使得模拟器能够精准模拟包括大容量风力机在内的多种风力机。本文为实现精准模拟气动-弹性耦合特性的目的,考虑将风电仿真软件FAST中的气弹耦合仿真代码移植进模拟器以替代现有气动转矩计算模型。首先分析了 FAST软件的总体结构,进行了拆分解构;在此基础上提取相关的气弹耦合仿真代码;之后封装成一个气动转矩计算函数模块,并开放相应接口。完成了对FAST软件代码的二次开发。其次分析了 PLC中进行实时仿真的可行性;接着设计编写PLC实时仿真控制程序;并通过编写C++程序来调用置于PLC中的上述气动转矩计算函数模块。同时基于R3I0通讯方式设计通讯方案,在PLC程序与C++程序间实现数据传递的实时性和同步性。在PLC中实现了基于气弹耦合特性的气动转矩实时仿真计算。最后在搭建好的风力机模拟器实验平台上进行了多组实验。通过对照FAST仿真结果,验证了本文模拟器具有良好的气弹耦合特性模拟性能。
[Abstract]:Wind turbine simulator is mainly used to simulate wind turbine operation in laboratory in order to carry out related wind power technology research. The simulator usually uses a simplified model based on Cp- 位 curve to simulate the aerodynamic torque of wind turbine. In recent years, with the large-scale production of large capacity wind turbine, the demand for simulating large capacity wind turbine operation in laboratory is increasing. However, the aerodynamic torque of large capacity wind turbine can not be accurately simulated by using the simplified model because of the influence of the Aeroelastic coupling characteristics on the calculation results of the aerodynamic torque of the large capacity wind turbine. In this paper, the simulation of Aeroelastic coupling characteristics is realized on the simulator, which enables the simulator to accurately simulate many kinds of wind turbines, including large capacity wind turbines. In order to accurately simulate the Aeroelastic coupling characteristics, the Aeroelastic coupling simulation code of wind power simulation software FAST is transplanted into the simulator to replace the existing aerodynamic torque calculation model. Firstly, the overall structure of the FAST software is analyzed, and the splitting and deconstruction are carried out. Based on this, the Aeroelastic coupling simulation code is extracted, and then a pneumatic torque calculation function module is encapsulated and the corresponding interface is opened. The second development of FAST software code is completed. Secondly, the feasibility of real-time simulation in PLC is analyzed, and then the PLC real-time simulation control program is designed and written. The above pneumatic torque calculation function module is called in PLC by writing C program. At the same time, the communication scheme based on R3I0 is designed to realize the real-time and synchronization of data transfer between PLC program and C program. The real-time simulation of aerodynamic torque based on Aeroelastic coupling is realized in PLC. At last, many experiments are carried out on the experimental platform of wind turbine simulator. The simulation results of FAST show that the simulation performance of this simulator is good.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM315
本文编号：2343537
[Abstract]:Wind turbine simulator is mainly used to simulate wind turbine operation in laboratory in order to carry out related wind power technology research. The simulator usually uses a simplified model based on Cp- 位 curve to simulate the aerodynamic torque of wind turbine. In recent years, with the large-scale production of large capacity wind turbine, the demand for simulating large capacity wind turbine operation in laboratory is increasing. However, the aerodynamic torque of large capacity wind turbine can not be accurately simulated by using the simplified model because of the influence of the Aeroelastic coupling characteristics on the calculation results of the aerodynamic torque of the large capacity wind turbine. In this paper, the simulation of Aeroelastic coupling characteristics is realized on the simulator, which enables the simulator to accurately simulate many kinds of wind turbines, including large capacity wind turbines. In order to accurately simulate the Aeroelastic coupling characteristics, the Aeroelastic coupling simulation code of wind power simulation software FAST is transplanted into the simulator to replace the existing aerodynamic torque calculation model. Firstly, the overall structure of the FAST software is analyzed, and the splitting and deconstruction are carried out. Based on this, the Aeroelastic coupling simulation code is extracted, and then a pneumatic torque calculation function module is encapsulated and the corresponding interface is opened. The second development of FAST software code is completed. Secondly, the feasibility of real-time simulation in PLC is analyzed, and then the PLC real-time simulation control program is designed and written. The above pneumatic torque calculation function module is called in PLC by writing C program. At the same time, the communication scheme based on R3I0 is designed to realize the real-time and synchronization of data transfer between PLC program and C program. The real-time simulation of aerodynamic torque based on Aeroelastic coupling is realized in PLC. At last, many experiments are carried out on the experimental platform of wind turbine simulator. The simulation results of FAST show that the simulation performance of this simulator is good.
【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM315
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