| 无刷励磁机磁极形状的优化设计 |
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| 引用本文： | 罗宏浩,魏巍,王福兴.无刷励磁机磁极形状的优化设计[J].装甲兵工程学院学报,2011,25(5):52-55. |
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| 作者姓名： | 罗宏浩 魏巍 王福兴 |
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| 作者单位： | 1. 装甲兵工程学院控制工程系,北京,100072
2. 63963部队,北京,100072 |
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| 摘 要： | 通过解析计算和有限元仿真的方法分析了某型坦克发电机中无刷励磁机的动态励磁特性，指出其激磁绕组在高速工作过程中存在瞬态反电势过高的缺点。在此基础上，提出采用磁极端部削角的方法对磁极进行优化设计，以减小励磁磁链波动。有限元动态仿真结果表明：该优化设计方案虽然导致激磁绕组的磁链略有下降，但可以显著降低激磁绕组磁链波动，改善其反电势特性。
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| 关 键 词： | 同步发电机 无刷励磁机 有限元分析 |
Optimization Design of Pole Shape in Brushless Exciter |
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| LUO Hong-hao,WEI Wei,WANG Fu-xing.Optimization Design of Pole Shape in Brushless Exciter[J].Journal of Armored Force Engineering Institute,2011,25(5):52-55. |
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| Authors: | LUO Hong-hao WEI Wei WANG Fu-xing |
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| Institution: | LUO Hong-hao1,WEI Wei2,WANG Fu-xing1(1.Department of Control Engineering,Academy of Armored Force Engineering,Beijing 100072,China,2.Troop No.63963 of PLA,China) |
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| Abstract: | The dynamic characteristic of brushless exciter in the generator of certain tank is analyzed by using theory computation and Finite Element Method （ FEM）. The shortcoming is pointed out that the transient back electromotive force of exciting winding is much higher than the input voltage at high speed. The method of angle-cut is adopted to optimize the pole shape and reduce the flux linkage fluctuation. The result of dynamic FEM shows that although the flux linkage is descended slightly, the transient back electromotive force of exciting winding can be effectively eliminated by new pole shape. |
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| Keywords: | synchronous generator brushless exciter finite element analysis |
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