TAILIEUCHUNG - A study on control of slotless self-bearing motor

This paper presents the structure, operating principle and control system for the slotless selfbearing motor. In which, the stator has no iron core and only includes a six-phase coil, and the rotor consists of a permanent magnet and an enclosed iron yoke. | Journal of Science Technology 136 2019 019-025 A Study on Control of Slotless Self-Bearing Motor Nguyen Huy Phuong Nguyen Xuan Bien Vo Duc Nhan Hanoi University of Science and Technology - No. 1 Dai Co Viet Str. Hai Ba Trung Ha Noi Viet Nam Received June 14 2019 Accepted June 24 2019 Abstract Recently researches that help create special electric motors play an important role in developing the new machines. This paper presents the structure operating principle and control system for the slotless selfbearing motor. In which the stator has no iron core and only includes a six-phase coil and the rotor consists of a permanent magnet and an enclosed iron yoke. Magnetic forces generated by interaction between stator currents and magnetic field of permanent magnet is used to control the rotational speed and radial position of the rotor. First the rotation torque and radial bearing force are analyzed theoretically from that the control system design is presented. In order to confirm the proposed control method the simulation model for the control system of the motor is developed using Matlab Simulink. The simulation results confirm that the rotational speed and radial position of the rotor are controllable. Keywords Active Magnetic Bearing Slotless Self-Bearing Mortor Lorentz Force PID Controller 1. Introduction The conventional magnetic bearing motors Fig. 1 usually consist of a rotary motor two radial magnetic bearings to stabilize the rotor in the horizontal direction and an axial magnetic bearing to keep the rotor stable in the axial direction. Obviously with this structure the magnetic bearing motor is large heavy high losses and difficult to apply for devices with the limited space 1-3 . X Radial Combined -Bearing Motor Fig. 2. Structure of Radial Combined Bearing Motor In recent years studies focused on reducing the size and the loss of magnetic bearing motors. One of the solutions that have drawn a lot of attention is combination of the radial magnetic bearing to .

• Cơ khí - Chế tạo máy
• Active magnetic bearing
• Slotless self bearing mortor
• Lorentz force
• Pid controller
• Six phase coil
• An optimal state feedback controller
• Degrees of freedom rigid rotor
• Linear Quadratic Regulator
• The control system
• The performance objectives
• Anfis controller for active magnetic bearing
• Flywheel energy storage system
• Adaptive neuro fuzzy inference system
• Zero error steady state
• Short rise time
• Robust controller
• Mixed H∞/H2 controller
• Particle swarm optimization
• Magnetic bearing systems
• MIMO systems
• Electronic Engineering
• Assault block
• Dynamic stiffness
• Rotor vibration