影响风力发电机组并网系统稳定性的因素分析  

Analysis of factors to affect stability of grid connected wind turbines system

作　　者：彭亮[1] 

机构地区：[1]西安科技大学电气与控制工程学院,陕西西安710054

出　　处：《电子设计工程》2017年第15期85-89,共5页Electronic Design Engineering

摘　　要：为提高风力发电机组并网系统的稳定性,本文以双馈感应发电机为研究对象,研究风力发电机组并网时影响电力系统稳定性的因素,首先建立双馈感应发电机以及其控制系统的模型,并对其进行分析,然后建立风力发电机组并网系统的仿真模型,并对其进行计算机仿真,研究风力发电机组并网对电路系统造成的影响。仿真结果显示,在没有附加控制条件的情况下,基于DFIG的风电场其稳定性较差,容易在系统受到扰动时被切除处电网系统,因此,为了保证风力发电机组并网系统的稳定性,使并网系统能够在受到扰动后很快恢复稳定状态,必须对其增加附加控制条件。In order to improve the stability of grid connected wind power generation system, this paper studies the factors that affect the stability of power system.Firstly, the model of the doubly fed induction generator and its control system is established and analyzed. Then, the simulation model of the grid-connected system of the wind turbine is established and the computer simulation is carried out to study the influences on the wind turbine generating system and the circuit system.The simulation results show that the DFIG-based wind farm is less stable and has no additional control conditions. It is easy to be cut off at the system when the system is disturbed. Therefore, in order to ensure the stability of the wind turbine system, So that the grid-connected system can quickly become stable after being disturbed and must add additional control conditions to it.

关 键 词：风力发电机组并网 系统稳定性 双馈感应发电机 计算机仿真 

分 类 号：TN99[电子电信—信号与信息处理]