A dual stator winding squirrel-cage induction motor (DSWIM) is a brushless single-frame induction motor that contains a stator with two isolated three-phase windings wound with dissimilar numbers of poles. Each stator winding is fed by an independent three-phase inverter. The appropriate efficiency of this motor is obtained when the ratio of two frequencies feeding the machine is equal to the r...

this paper presents a sensorless system drive on primary flux oriented control (pfoc) and secondary flux oriented control (sfoc) for the linear induction motor (lim) with taking into account end effect. extended kalman filter (ekf) is applied to estimate lim speed by measuring motor voltages and currents. in order to achieve desirable dynamic and robustness motor performance instead of traditio...

Ongoing advancements in inverters have offered pathway to high gain quasi Z source inverter Circuit (QZSIC). High QZSIC can be found between Semi Converter (SC) and three phase Induction Motor Loads (TPIML). This paper proposes suitable controller for closed loop controlled QZSIC-TPIML. strive deals within improvement time- response of fed induction motor system. The objective this effort tis d...

Aim. The comparative analysis of energy consumption, electricity costs during lifetime cycle and payback period a pump unit with 90 kW 2-pole induction motors, belonging to various efficiency classes, feeding directly from power grid. Methods. examined operating modes aligned typical approximately constant flow rate 75-110 % the rated flow. calculations were based on motors nameplate data, whic...

induction motor especially the squirrel cage type of this motor plays important role in industry. according to the application type, this motor place against various stresses that are caused failure in the motor. the most common failure is related to the stator winding. among these failures are turn-to-turn, coil-to-coil and phase to phase faults. flow the high current do to the induction resul...

The indirect field oriented control method is widely used for induction motor drives. This method needs a speed sensor such as a shaft encoder not only for the speed control but also for the torque control. The application of the speed sensor reduces the sturdiness of the system and make it expensive. Therefore, a drive system without speed sensors is required. Although the direct field oriente...

Accurate analysis of the air gap magnetic field is focus research in precision permanent magnet linear synchronous motors. In this paper, two-dimensional a secondary trapezoidal Halbach array coreless motor (PMLSM) was taken as our object. On basis equivalent surface current method, we proposed an improved analytical algorithm with side length unit. The model induction vector established, and P...

induction motor bearing is one of the key parts of the machine and its analysis and interpretation are important for fault detection. in the present work vibration signal has been taken for the classification i.e. bearing is healthy (h) or defective (d). for this purpose, clustering based classification of bearing vibration data has been carried out using principal component analysis (pca) and ...