电机与控制应用2024，Vol.51Issue(4)：40-49,10.DOI:10.12177/emca.2024.021
电励磁双凸极发电机偏心特性研究
Eccentricity Characteristics of Doubly Salient Electromagnetic Generator
摘要
Abstract
For the static eccentricity fault of the doubly salient electromagnetic generator,firstly,the equivalent analytical model of the air gap length of the generator is carried out.The theoretically relationships between the degree of static eccentricity and important characteristics such as magnetic flux linkage,electromagnetic torque,and air-gap magnetic density are derived.And then,a 2D finite element model of a 12/8 three-phase electrically excited salient-pole synchronous generator is established using Ansys finite element analysis,and the theoretical analysis results of electromagnetic signals are verified.Finally,the radial vibration signals of the generator are simulated through the coupled electromagnetic,modal,and harmonic response analysis modules in Workbench.The research findings show that the simulation results are basically consistent with the theoretical analysis,confirming that the eccentricity ratio in static eccentricity faults has a certain impact on the performance of the electrically excited salient-pole synchronous generator,thus providing a theoretical foundation for subsequent diagnoses of its static eccentricity faults.关键词
电励磁双凸极发电机/静偏心故障/有限元分析Key words
doubly salient electromagnetic generator/static eccentricity fault/finite element analysis分类
信息技术与安全科学引用本文复制引用
周凡,崔江,杨静..电励磁双凸极发电机偏心特性研究[J].电机与控制应用,2024,51(4):40-49,10.基金项目
中央高校基本科研业务费专项资金资助(NS2021021) （NS2021021）
航空科学基金项目(201933052001)Project supported by the Fundamental Research Funds for the Central Universities of Ministry of Education of China(NS2021021) （201933052001）
Aviation Science Foundation Project(201933052001) （201933052001）
