Sliding-mode control design of a slotless self-bearing motor

Abstract

Scientists have explored and are studying a slotless self-bearing motor, an electric motor with a magnetically integrated bearing function. As a single actuator, it can provide both levitation and rotation. This article will show a slotless self-bearing motor with a stator that does not have an iron core but six-phase coils. A permanent magnet and an enclosed iron yoke make up the rotor. To regulate the rotational speed and radial location of the rotor, magnetic forces created by the interaction between stator currents and the magnetic field of permanent interest are investigated. This research also includes a slotless-bearing motor mathematical model and control approach. This motor is investigated by combining an AC motor with a magnetic drive to achieve the essential design criterion and low cost. The magnetic force and moment characteristics are theoretically analyzed, and a control technique is proposed. Sliding-mode control (SMC) is a control method that is simple, effective and utilized to serve the control system for approaching the reference value, as stated in this study. It's also commonly used to manage the motor's position and speed. The findings were built and evaluated using MATLAB/Simulink confirmed analytical results to prove the recommended control approach.

Diagnosis of fault brush winding stator induction motor using external sensor flux of three axes

“…The rotor's speed consistently converges toward the rotating field since the flux created on the rotor lags behind the flux on the stator [21]. The speed of the rotating field is referred to as synchronous speed, which is determined by the number of poles (p) in the induction motor, as (1).…”

Performance analysis of different methods for optimal sliding mode control of DC/DC buck converter

“…The result of the comparative assessment of the ISMC indicate that, with different operating conditions, the frequency has very little fluctuation. According to Nhan et al [23] a SMC method was adopted to manage the position and speed of a slotless self-bearing motor. The simplicity and effectiveness in reaching the reference value was evaluated analytically by using MATLAB/Simulink software.…”

Accounting for magnetic saturation in designing a SRM speed controller for torque ripple minimization

“…Because of the requirement to identify the target function future values, it requires massive computations [20]. Similarly, sliding mode control (SMC) considered in [21]- [23]. Nhan et al [21] describes the design and study of SMC for radial position and rotational speed of slotless self-bearing motors.…”

“…Similarly, sliding mode control (SMC) considered in [21]- [23]. Nhan et al [21] describes the design and study of SMC for radial position and rotational speed of slotless self-bearing motors. In [23], a control study of an induction motor powered by a solar photovoltaic (SPV), using a sliding mode controller and a hysteresis controller has been investigated.…”