G. Kovács
Ganz Electric Works, Budapest, Hungary
G. Kovács, "Harmonics in the Squirrel Cage Induction Motor Analytic Calculation Part III: Influence on the Torque-speed Characteristic," in CES Transactions on Electrical Machines and Systems, vol. 8, no. 1, pp. 86-102, March 2024, doi: 10.30941/CESTEMS.2024.00006.
摘 要
鼠笼式异步电机中的谐波问题在文献中已有较长时间的详细讨论。然而,对这一现象的系统化还有待于研究,因此我们在前几部分的研究中试图通过详细阐述寄生力矩的计算公式来填补这一空白。用测量来验证作者的公式是从事这一领域工作的人的普遍要求。在文献中,似乎只有一个详细的,有目的的系列测量发表到目前为止,其目的是研究转子槽数对转矩-速度特性曲线的影响。本研究的主要目的是通过与参考系列测量结果的比较来验证公式的正确性。在此基础上,为经常使用的转子槽数开发了预期的同步寄生力矩--作为工程师的设计指南。因此,连同我们在以前的工作中发表的径向磁拉力的完整表,设计者有了为他给定的机器和驱动系统提供正确数量的转子槽的所有原则、数据和公式。这一系列论文就此告一段落。
Abstract
The harmonics that appear in the squirrel cage asynchronous machine have been discussed in great detail in the literature for a long time. However, the systematization of the phenomenon is still pending, so we made an attempt to fill this gap in the previous parts of our study by elaborating formulas for calculation of parasitic torques. It was a general demand among those who work in this field towards the author to verify his formulas with measurements. In the literature, it seems, only one detailed, purposeful series of measurements has been published so far, the purpose of which was to investigate the effect of the number of rotor slots on the torque-speed characteristic curve of the machine. The main goal of this study is to verify the correctness of the formulas by comparing them with the referred series of measurements. Relying on this, the expected synchronous parasitic torques were developed for the frequently used rotor slot numbers - as a design guide for the engineer. Thus, together with our complete table for radial magnetic pull published in our previous work, the designer has all the principles, data and formulas available for the right number of rotor slots for his given machine and for the drive system. This brings this series of papers to an end.
作者信息
G. Kovács 1949年1月5日出生于匈牙利布达佩斯。于1972年在匈牙利布达佩斯的匈牙利技术大学获得工程硕士学位,主修电机领域的重电流工业。 毕业后,加入了匈牙利布达佩斯的甘茨电气工厂。在整个职业生涯中,曾在感应电机电磁计算部门担任过不同的职位,包括部门的负责人。目前,他是一名高级开发经理。 于1990年参加了ICEM 82和84、IEEE等学术会议,报告了所在公司生产的2极MW级“带启动盘的鼠笼式感应电动机”,以及其他关于大功率感应电动机电磁计算的主题。主要成就包括发明了变极绕组(特别是宽比绕组)。目前主要研究方向是感应电机的谐波处理,以及通过他提出的“寄生扭矩和径向磁力公式”实现解析分析(ICEM 2020, ICEM 2022)。
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《中国电工技术学会电机与系统学报(英文)》(CES TEMS)是中国电工技术学会和中国科学院电工研究所共同主办、IEEE PELS学会技术支持的英文学术期刊。期刊发表国内外有关高性能电机系统、电机驱动、电力电子、可再生能源系统、电气化交通等研发及应用领域中原创、前沿学术论文。中国工程院院士马伟明担任主编,IEEE的执委Don Tan博士为国际主编。目前已被EI、Scopus、 Inspec、Google scholar、IEEE Xplore、中国科学引文数据库(CSCD) 核心版、DOAJ、CSTPCD、知网、万方、维普等数据库收录。