风力发电机组动力学建模与分析

LIU Xianzheng

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风力发电机组动力学建模与分析

更新时间：2025-08-13

- 风力发电机组动力学建模与分析
- Automation of Electric Power Systems Vol. 39, Issue 5, Pages: 15-19(2015)
- 作者机构：
  
  大连海事大学信息科学技术学院,辽宁省,大连市,116026
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015
- 稿件说明：
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LIU Xianzheng. [J]. Automation of electric power systems, 2015, 39(5): 15-19.
DOI：

LIU Xianzheng. [J]. Automation of electric power systems, 2015, 39(5): 15-19. DOI：

摘要

为研究并网型风力发电机组暂态过程对电力系统产生的影响

建立准确有效的机组机电暂态模型是展开分析研究的基础。文中根据风力发电机组结构将机械暂态模型划分为空气动力学模型、转子及塔筒动力学模型、传动链模型三部分

并利用理论力学的经典方法对该三部分进行了详细分析

在充分考虑各环节之间的相互影响后对模型接口进行了修正

从而完成机械子系统的建模。在MATLAB／Simulink下对3 MW双馈风电机组进行了建模

将模型线性化后利用Control System Toolbox工具箱进行根轨迹提取

从而分析出影响传动链转速动态特性的主要因素。最后

在时域下与常规机械暂态模型进行了仿真对比

验证了所述模型具有更高的精度。

Abstract

In order to analyze the transient dynamics of power system with grid-connected wind farms

an accurate transient model of wind turbine is the foundation of the research work. According to the structure of the wind turbine

the mechanical transient model is divided into three parts

i.e.

aerodynamic model

rotor and tower dynamics model

and drive-train model. The classical method of theoretical mechanics is proposed to analyze the three parts

taking into account of the mutual influence among subsystems link

the model interface is modified and the mechanical subsystem model is proposed. A 3 MW doubly-fed wind turbine model is built with MATLAB/Simulink. After linearization of the model

the root locus is extracted with Control System Toolbox

and the main factors affecting the stability of drive-train speed is figured out. Finally

in comparison with conventional mechanical transient models

simulation is carried out in time domain

and the results validate the model higher precision. This work is supported by National Basic Research Program of China (973 Program) (No. 2012CB215200).

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