| 变频调速异步电动机的转差率 |
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| 引用本文： | 曹玉泉,闫丽梅,李梦达,颜伟中. 变频调速异步电动机的转差率[J]. 西南交通大学学报, 2006, 41(1): 37-41 |
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| 作者姓名： | 曹玉泉 闫丽梅 李梦达 颜伟中 |
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| 作者单位： | 1. 大庆石油学院电气工程系,黑龙江,大庆,163318
2. 哈尔滨工业大学电气工程系,黑龙江,哈尔滨,150001 |
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| 基金项目： | 黑龙江省工业指导计划项目（96黑省工指62） |
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| 摘 要： | 以异步电动机机械特性曲线为基础，分析了变频调速异步电动机在拖动恒转矩负载、恒最大转矩负载、变转矩（非风机和泵类）负载、恒功率负载以及风机和泵类负载时，转差率随频率变化的规律．给出了在不同性质的负载和频率条件下，电动机的转差率和转速的计算公式．研究表明，变频调速电动机的转差率随频率的变化而变化．本研究的结论否定了变频调速电动机转差率不变的观点．
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| 关 键 词： | 变频调速 异步电动机 频率 转差率 负载 转矩 |
| 文章编号： | 0258-2724（2006）01-0037-05 |
| 收稿时间： | 2004-12-01 |
| 修稿时间： | 2004-12-01 |
Slip of Induction Motor with Frequency Speed Control |
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| CAO Yu-quan,YAN Li-mei,LI Meng-da,YAN Wei-zhong. Slip of Induction Motor with Frequency Speed Control[J]. Journal of Southwest Jiaotong University, 2006, 41(1): 37-41 |
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| Authors: | CAO Yu-quan YAN Li-mei LI Meng-da YAN Wei-zhong |
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| Affiliation: | 1. Dept. of Electrical Eng., Daqing Petroleum Institute, Daqing 163318, China; 2. Dept. of Electrical Eng., Harbin Institute of Teeh. , Harbin 150001, China |
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| Abstract: | Based on the torque-speed characteristic curve of induction motors,analyses were done on changes in slip with an variation in frequency when an induction motor drives different kinds of loads,including those with constant torque,constant-maximum torque,variable torque(except fans and pumps) and constant power,as well as fans and pumps.The formulas to calculate the slip and the speed under different frequencies and loads were presented.The analyses show that slip changes with an change in frequency for an induction motor with frequency speed control.This conclusion does not support the viewpoint that the slip of an induction motor with frequency speed control is constant. |
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| Keywords: | frequency speed control induction motor frequency slip load torque |
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