In this paper, application examples of high-speed electrical machines are presented, and the machine structures are categorized. Key issues of design and control for the high-speed permanent magnet machines are reviewed, including bearings selection, rotor dynamics analysis and design, rotor stress ...

The asymmetric dual-three phase BLDC motor has two sets of stator windings, in which the back EMF coefficients are different. This paper takes advantage of the asymmetric dual-three phase BLDC motor's structural features and proposes a new method for the accelerated problem of the BLDC motor operati...

In this paper, the torque ripple problem of six-phase asymmetrical brushless DC motor (BLDCM) is studied. First, the basic structure of BLDCM is introduced, and the operation principle of six-phase asymmetrical BLDCM that is studied in the thesis is expounded. Then, the principle of direct torque co...

In this paper, the authors propose an advanced brushless DC motor (BLDCM) drive for low cost and high performance electric propulsion system in electric vehicles (EVs) and hybrid electric vehicles (HEVs). It includes reduced parts power converter topologies and an optimal PWM control strategy to pro...

Many definitions are not yet decided upon, although a few car manufacturers are working with 42 V applications. There should be no doubt that the 42 V electrical system will be introduced. In this paper, the author examines how the introduction of the automotive 42 V powernet will effect the use of ...