双馈风力发电机转子槽楔强度的校核分析  

Verification and Analysis of Static Strength of Doubly Fed Induction Generator Slot Wedge

作　　者：吴冰[1] 王建良 WU Bing;WANG Jianliang(Hunan Railway Professional Technology College,Zhuzhou 412001,China;CSR Zhuzhou Electric Motor Co.,Ltd.,Zhuzhou 412001,China)

机构地区：[1]湖南铁道职业技术学院,株洲412001 [2]中国中车株洲电机有限公司,株洲412001

出　　处：《微特电机》2022年第12期31-33,42,共4页Small & Special Electrical Machines

基　　金：湖南省教育厅科学研究项目(21C1306)。

摘　　要：在风力发电电力系统中,低电压穿越时,通过风力发电机转子线圈的电流会上升到额定电流的10倍左右,可能会导致发电机某些机械部件的损坏或机械寿命的缩短。很多专家学者和技术人员都对风力发电机低电压穿越时,发电机机械部件的承受能力及是否受损进行研究分析。以1.5 MW双馈风力发电机为例,利用Workbench软件,对其转子槽楔的机械结构强度进行静强度分析,以验证转子槽楔结构强度是否满足发电机低电压穿越的要求。该文为电机槽楔静强度仿真分析提供了分析路径和分析方法,为电机的设计提供重要的理论依据。In wind power systems,when a low voltage is crossed,the current through the rotor coil of the wind turbine rises to about 10 times the rated current,which may lead to damage to some mechanical parts of the generator or shortening the mechanical life.Many experts,scholars and technicians have studied and analyzed the withstand capacity of the mechanical parts of the generator and whether they are damaged when the wind turbine is low voltage through.Taking a 1.5 MW doubly fed induction generator as an example,the static strength analysis of the rotor slot wedge was carried out by using the workbench software to verify whether the strength of the slot wedge structure met the requirements of the generator's low voltage ride-through.The paper provides an analysis path and analysis method for the simulation analysis of the static strength of the motor slot,which provides an important theoretical basis for the design of the motor.

关 键 词：双馈风力发电机 槽楔 静强度 分析 校核 低电压穿越 

分 类 号：TM315[电气工程—电机]