CAJ | 학술논문

该文研究一种双定子型磁悬浮开关磁阻飞轮电机。该电机采用内–外双定子结构，内定子上单独设置悬浮力绕组，外定子上单独设置主绕组。在结合基本结构说明其电动/发电运行原理的基础上，建立了系统的数学模型，研究了系统的控制策略。该电机集传动与径向悬浮功能于一体，可省去径向磁轴承，使飞轮系统结构更紧凑；并且主绕组和悬浮力绕组的耦合很小，可独立控制，可减小系统的控制难度；通过主绕组电流可实现电动/发电运行状态的平滑切换，当主绕组电流大于零时，电机工作在电动状态；当主绕组电流小于零时，电机工作在发电状态。有限元分析和实验结果验证了所提方案的可行性和正确性。
해문연구일충쌍정자형자현부개관자조비륜전궤。해전궤채용내–외쌍정자결구，내정자상단독설치현부력요조，외정자상단독설치주요조。재결합기본결구설명기전동/발전운행원리적기출상，건립료계통적수학모형，연구료계통적공제책략。해전궤집전동여경향현부공능우일체，가성거경향자축승，사비륜계통결구경긴주；병차주요조화현부력요조적우합흔소，가독립공제，가감소계통적공제난도；통과주요조전류가실현전동/발전운행상태적평활절환，당주요조전류대우령시，전궤공작재전동상태；당주요조전류소우령시，전궤공작재발전상태。유한원분석화실험결과험증료소제방안적가행성화정학성。
A double-stator type bearingless switched reluctance motor (DSBSRM) for flywheel energy storage system was studied. This DSBSRM consists of two stators with radial force windings placed on the inner stator and main windings placed on the outer stator. After the basic structure characteristics and its driving/generating principles were described, the mathematical model and the control strategy were studied. The suspension function is integrated into this DSBSRM, so the radial magnetic bearing is not needed anymore, which can make this flywheel-energy-storage system more compact. The coupling problem between main windings and radial-force windings can be conquered, so main windings and radial-force windings can be independently controlled, which can simplify the control difficulty. With proper main winding current, DSBSRM can be smoothly switched among different running modes. This motor can operate in electromotion mode when the main winding current is positive. While this motor operates in generation mode, when the main winding current is negative. Finally, FEM and experiment results confirm the feasibility and validity of this proposed method.