A Convenient Control Strategy of Bearingless Induction Motor Based on Inverse System Method
Abstract
To achieve the reliable control of bearingless induction motor which is a multi-variable and nonlinear object, a convenient decoupling control strategy based on inverse system method is proposed. The reversibility of four-pole torque system was analyzed, and the inverse system models were analysed also. Then the torque system was decoupled into two second-order linear subsystems: one is the rotor speed system; another is the rotor flux system. The suspension control system adopts negative feedback control strategy, and the required air-gap flux linkage of torque system was obtained from the rotor flux and stator current ontime; finally, synthesis and simulation of the decoupling control system for bearingless induction motor were researched. Simulation results have demonstrated that good performance can be achieved. The presented control strategy is feasible.
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Indonesian Journal of Electrical Engineering and Computer Science (IJEECS)
p-ISSN: 2502-4752, e-ISSN: 2502-4760
This journal is published by the Institute of Advanced Engineering and Science (IAES) in collaboration with Intelektual Pustaka Media Utama (IPMU).