当前位置:主页 > 科技论文 > 电气论文 >

实心转子异步电机磁场分析及设计

发布时间:2018-04-08 08:38

  本文选题:电磁设计辅助系统 切入点:场路结合法 出处:《沈阳工业大学》2017年硕士论文


【摘要】:实心转子异步电机结构简单、机械特性“软”、制造成本低廉,应用范围广泛,然而其磁场分布复杂,转子参数计算困难。电机运行时,实心转子中感应出的涡流不但会影响磁场的分布,而且也会使转子阻抗发生变化。单纯依靠磁路法分析其磁场和运行性能,不能精确计及端部效应等因素。采用三维有限元法,可以较全面地考虑这些因素对转子阻抗及电机性能的影响,揭示出磁场的分布规律,为电机的运行性能分析提供了理论参考。实心转子异步电机转子中复杂的三维非线性涡流场计算是分析电机性能的基础。本文从实心转子异步电机的三维磁场分析出发,采用场路结合法,计算了转子阻抗,提出了符合工程实际的端部修正系数。并依据场计算结果和此类电机的设计原理,开发了一款界面友好、计算精准的实心转子异步电机电磁设计辅助系统。本文首先通过三维有限元法分析了不同工况下的磁场分布规律,并在三维磁场研究的基础上,计算了反电势、转矩等数值,通过与样机测试结果对比可知,在不忽略转子端部效应等前提下通过三维磁场研究电机的整体性能,可得到更为准确的计算结果。其次,以三维磁场计算结果为基础,采用场路结合法计算出转子的阻抗、电流、电势及损耗,并提出了符合电机实际运行状态的端部修正系数,克服了采用传统磁路算法因无法考虑端部效应所带来的误差。最后,依据上述研究理论,基于C#编程语言,开发了一款可用于实心转子异步电机的电磁设计辅助系统,用实例说明了本系统计算的快速性和准确性,实现了电机电磁数据的可视化、计算结果的表格化和曲线化。
[Abstract]:Solid rotor asynchronous motor has the advantages of simple structure, soft mechanical characteristics, low manufacturing cost and wide range of application. However, its magnetic field distribution is complex, and the rotor parameters are difficult to calculate.The eddy current induced in the solid rotor will not only affect the magnetic field distribution, but also make the rotor impedance change.The magnetic field and operation performance can not be accurately taken into account by the magnetic circuit method.The influence of these factors on rotor impedance and motor performance can be considered comprehensively by using three-dimensional finite element method, and the distribution law of magnetic field is revealed, which provides a theoretical reference for the analysis of motor operating performance.The calculation of three dimensional nonlinear eddy current field in the rotor of solid rotor asynchronous motor is the basis of analyzing the performance of motor.Based on the three-dimensional magnetic field analysis of the solid rotor asynchronous motor, the rotor impedance is calculated by using the field-circuit combination method, and the end correction coefficient is put forward in accordance with the engineering practice.According to the result of field calculation and the design principle of this kind of motor, a kind of electromagnetic design assistant system of solid rotor asynchronous motor with friendly interface and accurate calculation is developed.In this paper, the distribution of magnetic field under different working conditions is analyzed by means of 3D finite element method. Based on the study of 3D magnetic field, the reverse EMF and torque are calculated, and the results are compared with the test results of the prototype.On the premise of not neglecting the rotor end effect, a more accurate calculation result can be obtained by studying the overall performance of the motor by means of three-dimensional magnetic field.Secondly, based on the results of 3D magnetic field calculation, the impedance, current, potential and loss of the rotor are calculated by using the field-circuit combination method, and the end correction coefficient in accordance with the actual running state of the motor is put forward.The error caused by the traditional magnetic circuit algorithm can not be considered.Finally, based on the above research theory and C # programming language, an electromagnetic design assistant system for solid rotor asynchronous motor is developed. The calculation speed and accuracy of the system are illustrated by an example.The visualization of the electromagnetic data of the motor is realized, and the results of calculation are tabulated and curvilinear.
【学位授予单位】:沈阳工业大学
【学位级别】:硕士
【学位授予年份】:2017
【分类号】:TM343

【参考文献】

相关期刊论文 前10条

1 孙玉坤;陈碧骅;袁野;;混合外转子磁悬浮开关磁阻电机的电磁分析[J];信息技术;2017年03期

2 陈洪萍;王秀和;;复合转子异步起动永磁同步电动机起动过程中永磁体退磁的研究[J];微电机;2017年01期

3 黄子果;王善铭;倪守辉;;三维分段分层法用于光滑实心转子异步电机参数计算与性能分析[J];电工技术学报;2016年23期

4 黄子果;王善铭;孙宇光;杨占录;牛跃进;郭巧合;;开槽实心转子电机的等效电路参数计算与性能分析[J];中国电机工程学报;2017年04期

5 黄子果;王善铭;倪守辉;;光滑实心转子异步电机等效电路参数的二维计算方法[J];中国电机工程学报;2016年09期

6 王映红;;实心转子感应电动机高速运转性能分析[J];工矿自动化;2013年07期

7 王锋;魏晓丽;江开耀;;基于XML的C#多语言界面实现[J];计算机工程与设计;2008年15期

8 廉涛;;实心转子笼型感应电动机电磁计算[J];大电机技术;2008年02期

9 柳盛;王东明;;基于C#的Excel报表自动生成[J];科技信息(科学教研);2008年07期

10 常正峰;黄文新;胡育文;刘陵顺;;基于二维解析法的光滑表面实心转子感应电机附加损耗的研究[J];中国电机工程学报;2007年21期



本文编号:1720871

资料下载
论文发表

本文链接:https://www.wllwen.com/kejilunwen/dianlidianqilunwen/1720871.html


Copyright(c)文论论文网All Rights Reserved | 网站地图 |

版权申明:资料由用户ef966***提供,本站仅收录摘要或目录,作者需要删除请E-mail邮箱bigeng88@qq.com