| 阶梯气隙结构对U型单相永磁电机自起动性能的影响 |
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| 引用本文： | 付敏,于长胜,白宏哲,高金龙,李婧一.阶梯气隙结构对U型单相永磁电机自起动性能的影响[J].电机与控制学报,2010,14(6). |
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| 作者姓名： | 付敏 于长胜 白宏哲 高金龙 李婧一 |
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| 作者单位： | 1. 哈尔滨工业大学,电气工程学院,黑龙江,哈尔滨,150001;哈尔滨理工大学,电气与电子工程学院,黑龙江,哈尔滨,150080
2. 哈尔滨理工大学,电气与电子工程学院,黑龙江,哈尔滨,150080 |
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| 基金项目： | 黑龙江省博士后基金项目 |
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| 摘 要： | 针时单相永磁同步电机不能自行起动的问题,采用阶梯气隙结构,使电机静止时在定位转矩的作用下定转子磁场之间存在相位差角,从而实现自起动.利用二维有限元计算的方法,分析阶梯气隙结构对电机电枢磁场和永磁体磁场的影响.针对永磁磁场,利用虚位移法对电机转子在不同位置时的定位转矩进行计算,求得永磁电机的转子初始相位角.得到一系列有关定位转矩、初始相位角与阶梯气隙结构参数之间的关系曲线.利用时步有限元法对U型单相永磁同步电机的起动过程进行动态模拟仿真,通过转速曲线证明了合理的阶梯气隙结构有利于永磁电机实现自起动.
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| 关 键 词： | 单相永磁电机 自起动 定位转矩 阶梯气隙 有限元法 |
Influence of step-air gap on line-start performance of U-shape single-phase permanent magnet motors |
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| FU Min,YU Chang-sheng,BAI Hong-zhe,GAO Jin-long,LI Jing-yi.Influence of step-air gap on line-start performance of U-shape single-phase permanent magnet motors[J].Electric Machines and Control,2010,14(6). |
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| Authors: | FU Min YU Chang-sheng BAI Hong-zhe GAO Jin-long LI Jing-yi |
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| Affiliation: | FU Min12,YU Chang-sheng2,BAI Hong-zhe2,GAO Jin-long2,LI Jing-yi2(1.School of Electrical Engineering,Harbin Institute of Technology,Harbin 150001,China,2.School of Electrical & Electronic Engineering,Harbin University of Science , Technology,Harbin 150080,China) |
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| Abstract: | For the problem that the single-phase permanent magnet synchronous motor has no capability self-starting,the structure with a step-airgap is adopted.Under the effect of locating torque,there will be a phase angle existing between the rotor and stator magnetic field,so as to achieve a self-starter.By u-sing 2D-FEM,it analyzed the influence of the step-airgap structure on armature field and permanent mag-net field.The locating torques of motor in different rotor positions were determined from the analysis of ... |
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| Keywords: | single-phase permanent magnet motors line-start locating torque step-airgap finite ele-ment method |
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