Fuzzy bang-bang relay control of a single-axis active magnetic bearing system

• Main Authors: Nagi F.H., Inayat-Hussain J.I., Ahmed S.K.
• Other Authors: 56272534200
• Format: Article
• Published: 2023
• Subjects: Active magnetic bearings; Bang-bang control; Fuzzy logic; Nonlinear control; Bearings (structural); Controllers; Electric control equipment; Feedback; Fuzzy control; Fuzzy sets; Intelligent control; Machinery; Magnetic amplifiers; Magnetic bearings; Magnetic materials; Magnetism; Nonlinear control systems; Nonlinear systems; Proportional control systems; Three term control systems; Two term control systems; Active magnetic bearing systems; Air-gaps; Artificial intelligence techniques; Bang-bang; Coil current; Control of nonlinear system; Electromagnetic forces; Equilibrium positions; Fuzzy controllers; Fuzzy logic controllers; Hard limiter; High frequency; Hybrid techniques; Imbalance force; Magnetic bearing actuators; Non-Linearity; Open loops; Optimal time; PD controllers; PID controllers; Relay control; Single-axis; Steady-state response; Supply currents; Bang bang control systems

Active magnetic bearings (AMB) are presently being utilized in various classes of rotating machinery. Although the rotor-AMB systems are open loop unstable, they are easily stabilized using feedback control schemes of which the PID controller is the most commonly used. The PID controller is however...