In this paper, a buck half-bridge DC-DC converter is used as a single-stage power factor correction (PFC) converter for feeding a voltage source inverter (VSI) based permanent magnet brushless DC motor (PMBLDCM) drive. The front end of this PFC converter is a diode bridge rectifier (DBR) fed from single-phase AC mains. The PMBLDCM is used to drive a compressor load of an air conditioner through...

The manuscript proposes a quadratic gain bidirectional converter (QGBC). proposed is operated in two different stages—step-up (motoring) and step-down (regenerative braking)—which can be employed electric vehicle (EV) applications. the continuous inductor current mode (CICM). For regenerative braking (RB) of permanent magnet brushless DC (PMBLDC) motor, self-inductance motor exploiting to step ...

In this paper a fast analytical algorithm for design a surface-mounted PM Brushless DC motor (SMPM-BLDC) for variable-speed application based on electromagnetic field analysis and RSM optimization algorithm is discussed. To achieve the desired performance, the physical dimensions of the proposed SMPM-BLDC motor subject to minimal ripple torque utilizing RSM optimization algorithm were optimized...

Leg Length Discrepancy (LLD) is a critical problem which not only impacts the quality of life but also causes other physical ailments such as limping and severe back pain. Most people had non-negligible difference in length their two legs, 0.1% population with differences 20 mm or more are diagnosed limb length. The Ilizarov external fixator commonly used treating LLD conventional therapeutic e...

A major part of the power consumption in the low-wattage reciprocating compressors, used for household refrigeration units, is associated with the motor. A variable speed compressor as opposed to a single speed compressor is known to provide energy savings due to its ability to match the load demand from the pump more closely to the power delivered by the pump. The current article presents an o...

In this paper, different electric motors are studied and compared to see the benefits of each motor and the one that is more suitable to be used in the electric vehicle (EV) applications. There are five main electric motor types, DC, induction, permanent magnet synchronous, switched reluctance and brushless DC motors are studied. It is concluded that although the induction motors technology is ...