MRAS Sensorless Vector Control of an Induction Motor Using New Sliding-Mode and Fuzzy-Logic Adaptation Mechanisms

作者：Gadoue Shady M^*; Giaouris Damian; Finch John W

来源：IEEE Transactions on Energy Conversion, 2010, 25(2): 394-402.

DOI：10.1109/TEC.2009.2036445

• Fuzzy control
• induction motors
• model reference adaptive control
• sliding-mode control

In this paper, two novel adaptation schemes are proposed to replace the classical PI controller used inmodel reference adaptive speed-estimation schemes that are based on rotor flux. The first proposed adaptation scheme is based on sliding-mode theory. A new speed-estimation adaptation law is derived using Lyapunov theory to ensure estimation stability, as well as fast error dynamics. The other adaptation mechanism is based on fuzzy-logic strategy. A detailed experimental comparison between the new and conventional schemes is carried out in both open- and closed-loop sensorless modes of operation when a vector control drive is working at very low speed. Superior performance has been obtained using the new sliding-mode and fuzzy-logic adaptation mechanisms in both modes of operations.

• 出版日期2010-6