Abstract：The train moves in very wide area and the circumstance is very different. The train must be started in the most difficult circumstance. The electric traction system must provide the enough starting torque for the train. But the torque of the induction motor is influenced by the rotor resistance variation and the rotor resistance variation is influenced by the temperature rise. This paper analyzes the traction characteristics of induction motor from slip frequency and flux orientation. It is proved that slip frequency and flux orientation are essentially uniform. This paper also analyzes the influences that the rotor resistances variation brings to the slip frequency, flux orientation and the starting torque. The microcomputer system (TMS320F2182) to realize entire digital control is designed. The vector control is adopted and the experiment is done. The experimental results show that starting torque is greatly influenced by the rotor resistance and the temperature rise is the key which affects the rotor resistance.
陈振锋, 钟彦儒, 李洁, 孙建平, 曾礼, 荆跃鹏. 转子电阻变化对电力牵引感应电机起动转矩的影响[J]. 电工技术学报, 2011, 26(6): 12-17.
Chen Zhenfeng, Zhong Yanru, Li Jie, Sun Jianping, Zeng Li, Jing Yuepeng. Influence of Rotor Resistance Variation on Starting Torque of Induction Motors in Electric Traction. Transactions of China Electrotechnical Society, 2011, 26(6): 12-17.
[1] 张立伟, 黄先进, 等. 欧洲主力交流传动机车主牵引系统介绍[J]. 电工技术学报, 2007, 22(7): 186-190. [2] 尚敬, 刘可安. 电力牵引异步电动机无速度传感器间接定子量控制[J]. 电工技术学报, 2007, 22(2): 22-27. [3] Bimal K Bose. Modern power electronics and ac drives[M]. New Jersey: Prentice Hall PTR, 2002. [4] Zhou Dawei, Chinniah B Rajanathan, et al. Finite-element-aided design optimization of a shaded-pole induction motor for maximum starting torque[J]. IEEE Transactions on Magnetics, 2000, 36(5): 3551-3554. [5] Koichiro Nagata, Toshiaki Okuyama, et al. A simple robust voltage control of high power sensorless induction motor drives with high start torque demand[J]. IEEE Transactions on Industry Applica- tions, 2008, 44(2): 604-611. [6] 徐伟, 李耀华, 等. 交通用大功率直线异步电动机牵引特性[J]. 电工技术学报, 2008, 23(7): 14-20. [7] Constantine Mastorocostas, Iordanis Kioskeridis, Nikos Margaris. Thermal and slip effects on rotor time constant in vector controlled induction motor drives[J]. IEEE Transactions on Power Electronics, 2006, 21(2): 495-504. [8] Wang Kaiyu, John Chiasson, Marc Bodson, et al. An online rotor time constant estimator for the induction machine[J]. IEEE Transactions on Control Systems Technology, 2007, 15(2): 339-348. [9] Darko P Marˇceti’c, Slobodan N Vukosavi´c. Speed-sensorless AC drives with the rotor time constant parameter update[J]. IEEE Transactions on Industrial Electronics, 2007, 54(5): 2618-2625. [10] Godpromesse Kenn’e, Tarek Ahmed Ali, et al. Real-time speed and flux adaptive control of induction motors using unknown time-varying rotor resistance and load torque[J]. IEEE Transactions on Energy Conversion, 2009, 24(2): 375-387. [11] 王成元, 夏加宽, 等. 电机现代控制技术[M]. 北京: 机械工业出版社, 2008. [12] 吕昊, 马明伟, 等. 磁场定向不准对感应电动机系统性能影响的分析[J]. 电工技术学报, 2005, 20(8): 84-88.
2011, Vol. 26 
