可再生能源2023，Vol.41Issue(12)：1605-1611,7.
基于等效风速的双馈风力发电机动偏心故障特性分析
Analysis of dynamic eccentric fault characteristics of doubly-fed induction generator based on equivalent wind speed
摘要
Abstract
In order to better identify the air-gap eccentric fault characteristics of the doubly-fed induction generator under the actual running condition,the spatial-temporal distribution difference of wind speed based on the effects of wind shear and tower shadow under natural condition are comprehensively considered.First,the fault characteristics are theoretically analyzed,and the electrical and magnetic characteristics of generator caused by air-gap eccentric fault are derived under the influence of wind speed spatio-temporal distribution.Simulation and experimental validation are then performed.The results show that the difference of wind speed spatial and temporal distribution leads to the fluctuation of aerodynamic torque,and finally leads to the coupling of electromagnetic parameters and wind speed distribution parameters of the generator,resulting in new fault characteristics.The research results improve the fault diagnosis theory of doubly-fed wind turbines,which has certain theoretical guiding significance for actual fault diagnosis.关键词
风力发电机/故障诊断/时空分布/动偏心/故障特征Key words
wind turbines/fault diagnosis/spatiotemporal distribution/eccentricity/fault characteristics分类
能源科技引用本文复制引用
绳晓玲,邓祖贤,万书亭,韩旭超,豆龙江,张雄..基于等效风速的双馈风力发电机动偏心故障特性分析[J].可再生能源,2023,41(12):1605-1611,7.基金项目
国家自然科学基金(52275109,52105098) （52275109,52105098）
河北省自然科学基金(E2022502007,E2021502038) （E2022502007,E2021502038）
保定市科技计划基础研究专项基金(2172P010). （2172P010）
