基于Matlab的风电机组多域物理系统仿真设计

Matlab-Based Simulation Design of Multi-domain Physical System of Wind Turbine

针对前端调速式风电机组结构复杂,一般的数学建模很难体现出风电机组内部机、电、液的耦合关系,提出一种多域物理系统建模方法。该方法利用Matlab/Simscape与Solid Works软件之间的接口,将数学模型与物理模型紧密地结合起来。结果表明,该多域物理模型根据风速变化调整桨距角,并实现Win Drive恒速输出,使得风电机组更好地适应电网。通过软件仿真验证了模型的有效性。

The complex structure is determined according to the front-end speed controlled wind turbine. It is difficult to reflect the wind turbine within the machine, electricity, liquid coupling relationship. A kind of multi-domain physical system modeling method is proposed. Through the use of the interface between Matlab/Simscape and SolidWorks software, the mathematical model and the physical model are closely combined. The result shows that the multi-domain physical model adjusts the pitch angle according to the change of wind speed and realizes WinDrive constant speed output, which makes the wind turbine better adapt to the power grid. The effectiveness of model is verified by software simulation.