摘要
随着风电并网容量的大幅提高,并网导则要求风电机组具备低电压穿越(LVRT)能力。分析了失速型风电机组、双馈型风电机组和全功率型风电机组在电网电压跌落时的暂态过程,据此设计了不同的硬件电路及软件控制策略,并针对LVRT技术难度较大的失速型机组和双馈型机组完成了实验验证。试验结果表明风电机组具有良好的电网适应性,能够满足并网导则的要求。
In recent years,wind power capacity increase rapidly. Grid rules require wind turbines have the lowvoltage ride through（LVRT）capability. Three wind turbines′transient process（Stall WT,DFIG WT,full power WT）were analyzed when the grid voltage dips,then designed different hardware and control strategy,and completed theexperimental verification of Stall WT and DFIG WT which LVRT technology is difficult. The result showes the windturbines have a good grid adaptability to meet grid code requirements.
出处
《电气传动》
北大核心
2014年第4期3-5,共3页
Electric Drive
关键词
低电压穿越
失速型风力发电机组
双馈型风电机组
全功率型风电机组
low voltage ride through（LVRT）
stall wind turbine
double fed induction generator wind turbine
full power wind turbine
