电力系统保护与控制Issue(2)：26-31,6.
具有低电压穿越能力的双馈风电机组故障暂态特性分析
Fault analysis of doubly fed induction generator wind turbines with low-voltage ride-through capability
摘要
Abstract
For the widely employed wind turbines with doubly fed induction generator (DFIG), their fault behaviors are different from the ones of the traditional synchronous generators. The fault characteristics are not only related to the transient responses of DFIG, but to the control and protection schemes of the interfaced converters. However, the existing fault analyses are based on some ideal assumptions, and they are not enough to completely reveal the impacts of large-scale wind power penetration on the fault characteristics of the power grid. In this paper, the detailed wind turbine with DFIG model is firstly outlined including the typical integration and low-voltage ride-through (LVRT) control scheme. And then the short-circuit current expressions of DFIG with LVRT capability are derived at different time segment of a fault. Moreover, from the perspectives of quantitative analysis the transient fault response of the wind turbine with DFIG is clarified during the entire period from the occurrence of the faults to its clearance. The results are available for evaluating the adaptation of the existing protection schemes and developing the new protection principles.关键词
双馈风力发电机/电磁暂态特性/短路电流/低电压穿越/风力发电Key words
doubly fed induction generator (DFIG)/fault characteristics/short circuit currents/low-voltage ride-through/wind power分类
信息技术与安全科学引用本文复制引用
毕天姝,刘素梅,薛安成,杨奇逊..具有低电压穿越能力的双馈风电机组故障暂态特性分析[J].电力系统保护与控制,2013,(2):26-31,6.基金项目
国家高技术研究发展计划(863计划)(2012AA050208) （863计划）
高等学校学科创新引智计划(B08013) （B08013）
