双馈风电机组低电压穿越实验平台设计

摘要

With the large penetration of wind energy in power system,the influence on the system stability has re ceived much attention.As a result,new requirements that the turbine is allowed to disconnect during voltage dips have been set.The design of experimental platform for low voltage ride through (LVRT) of wind turbine with doubly-fed in duction generator(DFIG) is presented, and finally a case is investigated based on the experimental platform.%随着风电机组大规模地接入电网,给电网安全带来了极大挑战.因此,为了保障电网运行安全,新的电网导则要求接入电网的风电机组必须具有低电压穿越(LVRT)能力.在此为了研究和验证实现双馈机组LVRT能力,保证风机不间断并网运行,主要阐述了双馈风电机组LVRT实验平台的设计和工作原理.最后基于设计的实验平台验证了双馈机组利用撬棒(Crowbar)实现LVRT的能力.