Study on Control System of Bearingless Induction Motor Based on Modified Internal Model Control

Abstract:

Bearingless induction motor is a multi-variable, nonlinear and strong coupled system. On the basis of working principle of bearingless induction motor, independent control of suspension control windings is combined with rotor flux-oriented control of torque control windings in the paper. Meanwhile, in order to improve robustness and decoupling performance of system, the modified internal model control (MIMC) is applied in the control of two sets of windings to realize the dynamic decoupling of currents and stable control of radial displacement. The results of simulation experiments show that the proposed strategy has good ability of disturbance rejection and robustness, so the stable operation of motor can be achieved effectively.

• Periodical: Advanced Materials Research (Volumes 317-319)
• Pages: 567-572
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.317-319.567
• Online since: August 2011
• Authors: Xian Xing Liu, Ming Yi Chen, Xiao Yan Shao, Zheng Qi Wang
• Keywords: Bearingless Induction Motor, Decoupling, Independent Control, Modified Internal Model Control (MIMC)

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