电工技术学报2016,Vol.31Issue(20):111-121,11.
基于双辨识参数全阶自适应观测器的感应电机低速性能
Low-Speed Performance of Sensorless Vector Control for Induction Motor Based on Two-Parameter Identified Adaptive Full-Order Observer
摘要
Abstract
A novel sensorless vector control method for induction motor is proposed, based on two-parameter identified adaptive full-order observer. The system stability is analyzed according to the Popov hyper stability theory. Based on the traditional adaptive full-order observer, the selection principle of feedback gain matrix scheme is studied. And then a proper feedback gain matrix is designed to ensure the system stability in the full speed range. After analyzing the impacts of the stator resistance variation over the speed estimation in low-speed range, the two-parameter identified adaptive full-order observer is designed. The designed observer can identify the rotor speed and stator resistance simultaneously. Therefore, the low-speed performance with load is improved effectively. The experiments have verified the designed observer.关键词
全阶自适应观测器/双辨识参数/感应电机/低速Key words
Adaptive full-order observer/two-parameter identified/induction motor/low speed分类
信息技术与安全科学引用本文复制引用
尹忠刚,张延庆,杜超,孙向东,钟彦儒..基于双辨识参数全阶自适应观测器的感应电机低速性能[J].电工技术学报,2016,31(20):111-121,11.基金项目
国家自然科学基金(51307139),高等学校博士学科点专项科研基金(20126118120010)和陕西省工业攻关项目(2014K08-30)资助。 (20126118120010)