摘要
针对开关磁阻电机模态仿真结果低阶模态计算误差较大的问题,提出了一种基于静力学预计算的开关磁阻电机模态仿真方法.该方法建立了开关磁阻电机的3维有限元模型,并采用现有的模态仿真方法和改进的模态仿真方法分别对模型进行了模态仿真计算,通过电机实验验证了模态仿真结果的准确性.模态结果对比分析表明:现有的模态仿真方法在低阶模态计算中存在不足,而基于静力学预计算的模态仿真方法通过考虑电机装配应力和自重应力的影响,能够把低阶模态仿真结果的相对误差控制在5%以内.
To reduce the large errors of low order modes in modal simulation for switched reluctance motor （SRM）, an improved method for modal simulation based on static pre-computation is proposed. A 3-dimensional finite element model for SRM is established. The simulation research is carried with the existing simulation method and the improved simulation method. Experiments are conducted for validation. Data analysis results showed that for low order modal calculation, the existing methods still have some short- comings. And the improved method based on static pre-computation can make the relative error less than 5 % by considering the effects of assembly stress and motor weight stress.
作者
汪一波
黄亦翔
李炳初
凌晓
赵帅
刘成良
张大庆
WANG Yibo HUANG Yixiang LI Bingchu LING Xiao ZHAO Shuai LIU Chengliang ZHANG Daqing(State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China Sunward Intelligent Equipment Co., Ltd., Changsha 410100, China)
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2017年第10期1181-1188,共8页
Journal of Shanghai Jiaotong University
基金
青年自然科学基金项目(51305258)
国家科技支撑计划(2014BAA04B01
2015BAF11B01)
上海市科委项目(1411104600)资助
关键词
开关磁阻电机
模态分析
电机建模
静力学预计算
switched reluctance motor
modal analysis
motor modeling
static pre-computation
