The heat conducting analysis of transient temperature field in IMCCR with discontinuous blocked rotor under different structure

IEEE EUROCON 2009 Pub Date : 2009-05-18 DOI:10.1109/EURCON.2009.5167709

Cao Jun-ci, Li Weili, Huo Feiyang, Cheng Peng, Shen Jiafeng

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引用次数: 1

Abstract

A new kind of induction motor with compound cage rotor(IMCCR) is developed in this paper, in which rotor bar is composed of upper part made of alloy material (conductor of electric and magnetic) and lower part made of cast aluminum. The transient heat conducting process of IMCCR running with discontinuous blocked rotor was studied, in which two different structure rotors were compared analyzed. The transient temperature field was numerically calculated by using the method of coupling electromagnetic field and temperature field, in which the continuous process with application of full voltage during 10s rotor locked, natural cooling during 600s disconnection of motor and during repeated next 10s rotor blocked is simulated. Based on the above, this paper presented the heat conducting process of the stator equivalent windings and change trend of bidirectional heat conducting of parts of stator. Then radial transient heat conducting processes of rotor when blocked and natural cooling were analyzed. At last, the influence of different material conductivity on the temperature distribution near the inner circle of stator was explored, in which the calculated values at the measured points were compared with the tested ones.

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不同结构下不连续堵转子IMCCR瞬态温度场的导热分析

本文研制了一种新型复合笼形转子异步电动机，其转子棒由上部为合金材料(导电体和磁体)，下部为铸铝构成。研究了含不连续转子的IMCCR的瞬态导热过程，并对两种不同结构转子进行了对比分析。采用电磁场与温度场耦合的方法对瞬态温度场进行了数值计算，模拟了10s转子锁死、600s电机断开时的自然冷却和10s转子重复阻塞的连续全电压过程。在此基础上，给出了定子等效绕组的导热过程和定子部件双向导热的变化趋势。然后分析了转子在堵塞和自然冷却时的径向瞬态导热过程。最后，探讨了不同材料电导率对定子内圈附近温度分布的影响，并将测点处的计算值与实测值进行了比较。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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IEEE EUROCON 2009

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