应用于双馈感应风电机组中的虚拟惯量控制研究

The Research on Virtual Inertia Control Applied to Doubly Fed Induction Generator

介绍了双馈感应风电机组发电系统原理、气动模型和机械模型的建立,分析了最大功率追踪控制、桨距角控制以及虚拟惯量控制,在Matlab/Simulink仿真软件中搭建双馈感应风电机组发电系统模型,通过电力电子变流器控制对电力系统频率响应的影响进行仿真验证。仿真结果表明:虚拟惯量控制的实施给双馈感应风电机组提供一个虚拟惯量,这一虚拟惯量由存储在转子中的旋转动能提供,并对系统频率起到了支撑作用。

The paper introduces the principle of DFIG power generation system, aerodynamic modet ana mechanical model and analyzes maximum power point tracking control, pitch angle control and virtual inertia control. The paper builds a model of DFIG power generation system on Matlab/Simulink software, simulating and retiring the influence of power system frequency response by power electronic converter control. Simulation results show that： the implementation of the virtual inertia control provides a virtual inertia for the DFTG, which is provided by the rotational kinetic energy stored in the rotor, and plays a supporting role in the system frequency.