基于Bond Graph的风力发电机建模

Wind-driven generator modeling based on Bond Graph

简单介绍了Bond Graph的状态变量、标准元件和建模方法等基本概念。基于Bond Graph能深入描述系统内部变化过程,对复杂系统物理模型研究更具优势,将其引入电力系统,在笼型三相异步风力发电机数学模型的基础上,提出基于Bond Graph理论的风力发电机建模与仿真,重点研究分析了发电机abc-αβ0坐标变换的Bond Graph模型,以及描述发电机定子和转子之间电磁联系的惯性场、电量与机械量转换关系以及描述发电机机械转矩的Bond Graph模型,在此基础上得出完整的风力发电机模型,并利用20-Sim软件进行了仿真,仿真结果验证了该模型的正确性。

This paper briefly introduces the basic concepts of Bond Graph model, such as state variables, standard components and modeling approach. Bond Graph modeling can describe the internal variations in the system and has advantages on research of complicated physical model, so it is introduced into power system. Based on mathematic model of three-phase asynchronous motor, this paper brings forward wind-driven generator modeling using Bond Graph theory. It focuses on abc coordinate system to a130 coordinate system model, inertia field model, electricity and mechanical quantity conversion model and mechanical part model, then achieves the whole model of wind-driven generator and carries out simulation by 20-Sim to verify its correctness.