In this paper, a new PI observer of flux of induction motor is proposed. In the conventional PI observer, the PI correctors make the correction of estimation errors of stator currents of induction motor. In the proposed PI observer, we replace the two PI correctors of the structure of the PI observer by two adaptive neuro-fuzzy correctors. The aim is to enhance the robustness of correction of e...

A new structure of linear transverse flux machine (TFM) is presented in this paper. It is in fact a variable reluctance linear machine having permanent magnets on the mover. Its structure and its working principle will be discussed. After a preliminary design of the motor a 3D FEM analysis was carried out before optimizing the designed linear motor. The flux densities in the machine and the sta...

Direct torque control (DTC) of an induction motor fed by a voltage source inverter is a simple scheme that does not need long computation time and can be implanted without mechanical speed sensors and is insensitive to parameter variations. In principle, the motor terminal voltages and currents are sampled and used to estimate the motor flux and torque. Based on estimates of the flux position a...

This paper presents the implementation of a three-leg voltage source inverter fed by brushless DC motor. The open-loop speed control with direct torque is employed in this rotation motor controlled using an optimal vector which related to calculation stator flux and electromechanical torque. experimental results show that system has greater capability reduce spike ripple on voltage, current, fl...

Main flux saturation in induction machines plays an important role in a number of operating regimes and therefore has to be accounted for in the process of modelling. The current state space model of a saturated induction machine has gained substantial popularity recently as an excellent tool for transient and steady-state time domain analysis of induction motor drives when the main flux satura...

A bearingless induction machine has combined characteristics of induction motor and magnetic bearings. Therefore, the advantages are small size and low-cost. In the magnetic suspension of the bearingless motors, suspension forces are generated based on the feedback signals of displacement sensors detecting the movement of the rotor shaft. The suspension forces are generated taking an advantage ...

A dual mover yokeless multi-tooth (DMYMT) permanent magnet flux switching motor (PM-FSM) design is presented in this article for ropeless elevator applications. The excitation sources, including a field winding and magnet, are on the short proposed structure, whereas stator simple slotted iron core, thus reducing vertical transportation system cost. operational principle of DMYMT PM-FSM introdu...

In this article, a circumscribing polygon integrated modular motor drive topology with shared cooling for the power converter and electrical machine is proposed benchmarked nonintegrated version. The applied on an axial flux permanent magnet synchronous machine. capable of mechanically mounting converter, sufficiently both machine, combining them into same housing. mechanical thermal design are...

Direct Torque Control of induction motor fed drives has become popular and widely used in industries due to fast and good torque response. Induction motors (IM) are simple in construction and are less sensitive to the motor parameters compared to other vector control methods. A new torque and flux control scheme called the direct torque control (DTC) has been introduced for induction motors. In...

a bearingless induction machine has combined characteristics of induction motor and magnetic bearings. therefore, the advantages are small size and low-cost. in the magnetic suspension of the bearingless motors, suspension forces are generated based on the feedback signals of displacement sensors detecting the movement of the rotor shaft. the suspension forces are generated taking an advantage ...