双馈型风力发电机低电压穿越的分析研究  

Analysis and research of low voltage ride through for doubly fed wind power generator

作　　者：王定国[1] 张红超[2] 

机构地区：[1]许继集团有限公司,河南许昌461000 [2]国家继电保护及自动化设备质量监督检验中心,河南许昌461000

出　　处：《电力系统保护与控制》2011年第17期70-73,共4页Power System Protection and Control

摘　　要：风力发电机的低电压穿越现场实际实验较难实现,为了准确地分析双馈型风力发电机低电压穿越的特性,有必要通过仿真的方式进行分析研究。针对风力发电系统中双馈型风力发电机的基本原理,构建了机组的动态数学模型,利用Matlab/Simulink的仿真平台,建立了双馈感应发电机以及控制系统的仿真模型,对其在电压跌落50%的故障下开展了仿真和研究,分析了电网跌落时对双馈风力发电机的影响。研究结果表明:电网电压跌落时和电压恢复时风力发电机会受到电网电压故障的强烈影响。The field experiment of the wind generator low voltage ride through is difficult to achieve. In order to accurately analyze the characteristic of low voltage ride through of doubly-fed wind generator, it is necessary to conduct a simulation analysis. Based on the basic principle of doubly-fed wind turbine in wind power generation system, the dynamic mathematical model of the unit is constructed, and a simulation model of the doubly-fed induction generator and control system is established using simulation platform of Matlab/Simulink. Simulation and analysis of doubly-fed wind turbine when the voltage drops by 50% are conducted, and the influence on the wind turbine when power grid falls is analyzed. The results show that wind turbine generator is influenced strongly by the fault when the network voltage falls as well as when it recovers.

关 键 词：双馈发电机 风力发电机组 低电压穿越 运行状况 风力发电 

分 类 号：TM315[电气工程—电机]