| 增强能量增量法求解无轴承开关磁阻电机电感 |
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| 引用本文： | 王世山,刘泽远,邓智泉.增强能量增量法求解无轴承开关磁阻电机电感[J].南京航空航天大学学报,2009,41(1). |
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| 作者姓名： | 王世山 刘泽远 邓智泉 |
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| 作者单位： | 南京航空航天大学自动化学院,南京,210016 |
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| 基金项目： | 航空科学基金，台达电力电子科教发展基金，南京航空航天大学创新科研基金 |
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| 摘 要： | 有别于磁链法和需要求解二阶偏导数的能量增量法,本文采用一种称作增强能量增量法计算非线性系统的磁链、静态电感(割线电感)和动态电感(差分电感).该法首先给定各回路的工作点,其次在工作点附近给予一较小的扰动电流,则系统的磁场也随之扰动.结合磁性材料的B-H曲线,磁场能量增量可以通过对磁场强度H、磁感应强度B增量的积分获得.由此,在不需要微分的条件下,各回路的磁链、静态电感和动态电感可以分别求得.本文以12/8 7.5 kW无轴承开关磁阻电机为例,在认为三相绕组完全分时导通时,可忽略相间互感;以线性铁芯材料为例,说明了主、悬浮绕组间互感在合适的连接下也可以忽略.因此,仅需求解一相主绕组、悬浮绕组的静态、动态自感即可.求解这些电感随位置角和工作电流的变化,取得了与实验一致的结果.
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| 关 键 词： | 无轴承开关磁阻电机 电感 有限元法 增强能量增量法 |
Solution of Inductance for Bearingless Switched Reluctance Motor by Using Enhanced Incremental Energy Method |
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| Wang Shishan,Liu Zeyuan,Deng Zhiquan.Solution of Inductance for Bearingless Switched Reluctance Motor by Using Enhanced Incremental Energy Method[J].Journal of Nanjing University of Aeronautics & Astronautics,2009,41(1). |
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| Authors: | Wang Shishan Liu Zeyuan Deng Zhiquan |
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| Institution: | College of Automation Engineering;Nanjing University of Aeronautics & Astronautics;Nanjing;210016;China |
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| Abstract: | Differing from the flux-linkage method,and the incremental energy method which need to solve second-order differential coefficient,an enhanced incremental energy method(EIEM) for evaluating the flux linkage,static inductance(secant inductance) and dynamic inductance(differential inductance) in nonlinear systems is presented.After the operating point of each circuit is confirmed,a less perturbed current is applied to every circuit in the vicinity of the operation point,and then the magnetic field of the syst... |
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| Keywords: | bearingless switched reluctance motor inductance finite element method enhanced incremental energy method |
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