Modeling Of Wind Turbine Generator System Based On Physical Object Oriented Method

The modeling and simulation is an important way to understand the principle and dynamic behaviors of WTGS (Wind Turbine Generator System). It is also very useful for optimizing the design, production and operation of the wind turbine generator systems, and this topic has become a hotspot in the field of wind power generating engineering. In this paper, a new methodology for physical system modeling, POOM (Physical Object Oriented Method), is introduced. This methodology is based on OOM (Object Oriented Method) and equations, it is in accord with the rule that people learning the world. The connection of the components is physical connection. These characteristics make the POOM convenient to the modeling of the complex multi-domain physical systems. WTGS is a complex multi-domain physical system. So POOM was introduced to the modeling of WTGS, then simulation software, Dymola, which is based on Modelica is introduced to model the WTGS, and a relevant library is designed. As a test case of POOM, the constant-pitch stall controlled WTGS was simulated, the dynamic performance of the WTGS which works under different wind speed was studied. The simulating results show the validity of the model and method.