| 磁性槽楔对高压感应电动机电磁参数和性能的影响 |
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| 引用本文： | 梁艳萍,陈晶,刘金鹏. 磁性槽楔对高压感应电动机电磁参数和性能的影响[J]. 电机与控制学报, 2010, 14(3) |
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| 作者姓名： | 梁艳萍 陈晶 刘金鹏 |
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| 作者单位： | 哈尔滨理工大学,电气与电子工程学院,黑龙江,哈尔滨,150040 |
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| 基金项目： | "十一五"国家科技支撑计划重点项目 |
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| 摘 要： | 针对传统方法很难定量分析磁性槽楔对电机性能影响的缺点,提出采用场-路-运动耦合时步有限元分析磁性槽楔影响的方法.以一台使用磁性槽楔的710 kW的高压感应电机为例,通过建立二维瞬态场数学模型,准确计算了气隙磁密分布、槽漏抗及附加损耗等电磁量,并在此基础上,深入分析磁性槽楔相对磁导率的变化对电机电磁参数、相电流、转矩和径向电磁力等的影响.计算结果表明,磁性槽楔可以有效减小气隙磁密中的谐波含量,降低表面损耗和径向电磁力波.
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| 关 键 词： | 高压电机 磁性槽楔 有限元分析 气隙磁场 电磁参数 |
Influence of magnetic slot wedge on electromagnetic parameters and performance of high voltage induction motor |
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| LIANG Yan-ping,CHEN Jing,LIU Jin-peng. Influence of magnetic slot wedge on electromagnetic parameters and performance of high voltage induction motor[J]. Electric Machines and Control, 2010, 14(3) |
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| Authors: | LIANG Yan-ping CHEN Jing LIU Jin-peng |
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| Abstract: | Aiming at the shortcomings of being difficult to quantitativly analyze the effects of magnetic slot wedge on motor performance with traditional methods,a field-circuit-motion coupled FEM is proposed as a method to analyze the effects of magnetic slot wedge.Taking a 710 kW high voltage motor with magnetic slot wedge for example,the air-gap flux density,slot leakage reactance and extra losses were calculated accurately by using 2-D transient mathematical model of the motor.The influences of permeability of magnetic slot wedge on electromagnetic parameters,phase currents,torque-speed characteristics and electromagnetic forces were analyzed in depth.The results show that the magnetic wedge can reduce the harmonic of air-gap flux density effectively,the surface losses and radial electromagnetic forces. |
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| Keywords: | high voltage motors magnetic slot wedge finite element analysis air-gap magnetic field electromagnetic parameter |
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