Most three-phase, squirrel-cage, induction motors (IMs) are oversized. In the European Union (EU), the average load factor of IMs is slightly lower than 60%. In fact, in some industrial sectors, a large quantity of motors operates with a load permanently significantly under that value (e.g., 25-30%). Therefore, since the load factor is an average of the motor load over its operating cycle, it c...

In this paper, a wind energy conversion system (WECS) is presented for the electrification of rural areas with availability. A three-phase AC-DC converter based on bridgeless Cuk used power extraction from permanent magnet synchronous generator (PMSG). The topology enables elimination front-end diode bridge rectifier (DBR). Moreover, has fewer components, simple control, and high efficiency, ma...

This paper presents the implementation of broken rotor bar fault detection in an inverter-fed induction motor using motor current signal analysis (MCSA) and prognosis with fuzzy logic. Recently, inverter-fed induction motors have become very popular because of their adjustable speed drive. They have been used in many vital control applications such as rolling mills, variable speed compressors, ...

This paper highlights the benefits of replacing the classical cast aluminum cage with a cast copper cage in the manufacture of future generation of high efficiency induction machines used as motors or generators. The numerical analysis carried out in the paper is based on a 2D plane-parallel finite element approach of the induction machine, the numerical results being discussed and compared wit...

A direct-on-line synchronous reluctance motor (DOLSynRM) with a rotor topology defined by the natural flux line curve approach is studied as an alternative to induction (IM) using 1.5 kW, 50 Hz example. If IM stator used, direct squirrel cage replacement equipped damper winding might not guarantee sufficient starting performance. To ensure strong enough capability, was modified in design. The p...

Induction motors are still the most used in industrial applications due to simplicity of installation and low maintenance cost, especially for squirrel cage type. The significant development power electronics terms high-speed technologies electronic switches, their availability high ratings, considerable decrease cost components supports this increase uses. However, changing induction motor's s...

A two-degrees-of-freedom (2DOF) dual-rotor axial-flux induction motor (2DOF-DRAFIM) is proposed with independent movement capability of rotors and its performance evaluated in detail. First, using the analytical equations, steady-state model presented electrical equivalent circuit extracted along an electromagnetic design algorithm for motor. In next step, two-dimensional three-dimensional fini...