重庆大学学报2017，Vol.40Issue(10)：60-69,10.DOI:10.11835/j.issn.1000-582X.2017.10.007
大转动惯量负载用感应电机转子起动温升分析
Analysis on rotor starting temperature rise of induction motor with heavy rotary inertia load
韩力 1雷艺 1汪同斌 2王世洪 3章丽桥 3熊颖丹3
作者信息
- 1. 重庆大学输配电装备及系统安全与新技术国家重点实验室,重庆400044
- 2. 国网重庆市电力公司检修分公司,重庆400014
- 3. 重庆赛力盟电机有限责任公司,重庆401329
- 折叠
摘要
Abstract
The induction motor with heavy rotary inertia load is a specialized motor which drives the coal mill in the power station.Due to the heavy rotary inertia,the large starting current and long starting time resulting from the coal mill with heavy rotary inertia load,the loss and heat problems of the motor rotor in the starting process are more serious.To improve the starting reliability of the motor,an induction motor which is the largest capacity with heavy rotary inertia load in China is chosen as the research object.By the methods of discrete point calculation and curve fitting,the models of rotor core loss,rotor copper loss and rotor surface heat transfer coefficients with the change of rotor speed are established respectively at the starting process.And then,the rotor loss and the temperature rise at the starting process are calculated and analysed by the finite element method.The results show that the starting time of the motor is as long as 48 s.The rotor core loss,rotor copper loss and rotor surface heat transfer coefficients change with the rotor speed at the starting process.When the starting is completed,the highest rotor temperature rise is 141.1 K.关键词
大转动惯量感应电动机/起动过程/电磁场/温度场/有限元Key words
induction motor with heavy rotary inertia load/starting process/electromagnetic field/temperature field/finite element分类
信息技术与安全科学引用本文复制引用
韩力,雷艺,汪同斌,王世洪,章丽桥,熊颖丹..大转动惯量负载用感应电机转子起动温升分析[J].重庆大学学报,2017,40(10):60-69,10.
