Fast and accurate transient response is the main requirement in electric machine position control. Conventional cascade control structure has sluggish response due to the limitation of inner control loop bandwidth. In this paper, in order to decrease the Permanent Magnet Synchronous Motor (PMSM) transient response time it can be used reference model using feed-forward signals. In this structure...

Conventional sliding mode control (SMO) utilizes a sign function and low-pass filter (LPF) to achieve sensorless of permanent magnet synchronous motor (PMSM). However, the introduction generates large number high harmonics, resulting in significant system output chattering, whereas addition LPF delays phase shifts. These degrade PMSM speed position estimation accuracy reduce performance. To imp...

In motors containing magnets, irreversible demagnetization failure is one of the factors that negatively affect motor performance. this study, traditional Axial Flux Permanent Magnet Synchronous Motor (AF-PMSM) rotor structure was changed and gained feature starting from line used. Line Start AF-PMSM with 5.5 kW shaft power has 4 poles each pole consists 5 magnets. Demagnetization obtained by f...

This paper introduces a new method to track the saliency of a PMSM motor fed by a four-leg inverter in case of a single phase open circuit fault through measuring the dynamic current response of the motor line currents due the IGBT switching actions. In the case of a single phase open circuit fault, a fault-tolerant control strategy that includes taking appropriate actions to control the two re...

The issues of monitoring and fault diagnosis drives with permanent magnet synchronous motors (PMSM) are currently very topical due to the increasing use these in safety-critical devices. Every year, more articles on this subject published. Therefore, aim article is update overview diagnostic methods techniques for PMSM drives. Each main chapters focuses a specific element drive system (motor, p...

This paper proposes a novel extended electromotive force (EEMF) observer of dual three-phase permanent magnet synchronous motor (DTP-PMSM) operable to the position sensorless overmodulation drive. The drive occurs in current harmonics, and estimated EEMF also contains harmonic components, leading ripple error position. Based on vector space decomposition (VSD) utilized DTP-PMSM control, propose...

A new method of minimum-energy point-to-point (PTP) trajectory planning is proposed for an LCD glass-handing robot, which is driven by a permanent magnet synchronous motor (PMSM). The variable structure controller (VSC) is designed to track the trajectories and compensate LuGre model of frictional torque effects. The robot system is described by a mechanical equation and an electrical equation....