| 非均匀气隙对切向永磁同步发电机性能影响 |
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| 引用本文： | 崔雪萌,;刘勇,;梁艳萍.非均匀气隙对切向永磁同步发电机性能影响[J].哈尔滨理工大学学报,2014(3):100-104. |
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| 作者姓名： | 崔雪萌 ;刘勇 ;梁艳萍 |
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| 作者单位： | [1]哈尔滨理工大学电气与电子工程学院,黑龙江哈尔滨150080; [2]山东职业学院电气工程系,山东济南250104 |
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| 摘 要： | 针对永磁同步发电机(PMSG)谐波含量和振动较大的问题,提出采用非均匀气隙削弱齿谐波和齿槽转矩的方法.分析了非均匀气隙永磁同步发电机的运行机理,讨论了不同偏心程度非均匀气隙情况下,永磁同步发电机的空载反电动势、输出功率、电机效率、波形畸变率等参数的变化规律.通过场路耦合法,以一台切向式永磁同步发电机为例进行了仿真,结果表明非均匀气隙能改善气隙磁场波形,电机波形畸变率THD由4.86%降到2.48%,齿槽转矩降低40%.
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| 关 键 词： | 永磁同步发电机 非均匀气隙 电机性能 |
Non-uniform Air Gap Effect on the Performance of Permanent Magnet Synchronous Generator with Tangential Structure |
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| Affiliation: | CUI Xue-meng, LIU Yong, LIANG Yan-ping( 1. School of Electrical and Electronic Engineering, Harbin Univeersity of Science and Technology, Harbin 150080, China; 2. Electrical Engineering Department, Shandong Polytechnic, Jinan 250104, China) |
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| Abstract: | Aiming at the problem that interior permanent magnet synchronous generator（PMSG） has larger harmonic and vibration,using non-uniform air gap to weaken slot harmonic and cogging torque is proposed.The running mechanism of non-uniform air gap was analyzed and discussed the change law of the PMSG＇s parameters such as no-load back electromotive force（EMF）,output power,efficiency and total harmonic distortion（THD）.Through the field-circuit method,with an interior permanent magnet synchronous generator（IPM） as an example for the simulation,the results shows that non-uniform air gap can effectively improve the waveform of air gap field,it＇s THD drop from 4.86% to 2.48% and the cogging torque lower by 40%. |
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| Keywords: | permanent magnet synchronous generator non-uniformity air-gap performance of generator |
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