This paper introduces a novel dual-air-gap surface permanent magnet synchronous motor (DAG-SPMSM) and investigates its electromagnetic characteristics. The comprises two stators (inner outer) single rotor with magnets on both sides outer). are arranged in zig-zag configuration to isolate the inner outer stator magnets. Additionally, magnetic shield is incorporated into further flux, which resul...

An improved non-singular fast terminal sliding mode control (INFTSMC) is proposed in this study, to improve the dynamic speed regulation and tracking accuracy of a surface-mounted permanent magnet synchronous motor (SPMSM) system. A surface that completely removes singularities from controller input proposed. The key characteristics INFTSMC are convergence errors, high accuracy, robustness agai...

Flux switching permanent magnet synchronous motor (FMSM) has the characteristics such as large output torque, fast speed response and high reliability, so it can be widely used in the field of high-performance and high precision control.In the permanent magnet synchronous motor control system, the speed loop usually adopts the PI control algorithm. Although the PI control algorithm is relativel...

‎in this paper, we investigate the chaotic behaviors of the fractional-order permanent magnet synchronous motor (pmsm) system. the necessary condition for the existence of chaos in the fractional-order pmsm system is deduced and an active controller is developed based on the stability theory for fractional systems. the presented control scheme  is simple and flexible, and it is suitable both fo...

In order to expand the speed range for an indirect matrix converter–surface mounted permanent magnet synchronous motor drive (IMC-SPMSM), a wide operation control strategy based on flux-weakening and over-modulation method is proposed in this paper. stage of inverter, IMC designed, which increases fundamental voltage transmission ratio (VTR) 1. addition, considering variation limit boundary wit...

In practical application, the motor speed may need to be greater than rated speed, so field-weakening control is required. However, conventional flux-weakening requires much tuning work, because multiple PI controllers are used. order make work easier, this paper combines with deadbeat predictive current (DPCC) eliminate two in loop. addition, also proposes a adaptive controller, which can furt...

This paper proposes a back electromotive force estimation error compensation method for accurate rotor position estimation of surface mounted permanent magnet synchronous motors. When estimating the rotor position of surface mounted permanent magnet synchronous motor sensorless drives, a direct current offset error component occurs in the voltage sensor. As a result, the rotor position is disto...

Among all types of electrical motors, permanent magnet synchronous motors (PMSMs) are reliable and efficient motors in industrial applications. Because of their superiority over other kinds of motors, they are replacing conventional electric motors. On the other hand, high-phase PMSMs are good candidates to be used in certain industrial and military projects such as electric vehicles, spacecraf...

A novel back-stepping adaptive control strategy is proposed to direct torque control (DTC) of surface permanent magnet synchronous motor (SPMSM) in order to solve some problems existed in conventional DTC, such as high flux , torque and current ripple, variable switching frequency, and acoustic noises. PI speed regulator and two hysteresis regulators in the conventional DTC system are substitut...

Abstract As an important power component of the material conveying system, motor will inevitably cause vibration mechanical structure when rotating, thus affecting stable operation motor. Most systems have high requirements for level, and usually take performance electrical as evaluation criteria same level. A nonlinear terminal sliding mode controller is proposed to solve phase delay problems ...