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Recently, permanent magnet (PM)-brushless direct current motors (BLDCMs) have been widely used in high-performance motor drive applications, thanks to their many attractive advantages, such as higher power and torque density and efficiency, simpler motor assembly and maintenance, lower cost, acoustic noise, and vibration. However, due to cost increase rapidly and restricted exploitation of rare earth...
Tamping machine is one of the pivotal devices for coking plants. Most tamping machines are still driven by rotatory electric motors, through mechanical transmission components, leading to low energy efficiency, slow working frequency and huge maintenance fees. In fact the tamping machine can be directly driven by linear motors as shown in Fig.1. Directly driven system will be simpler with higher working...
With the increasing problems of emission from oil/gas powered vehicles and the decreasing of fossil fuel around the world, the electric vehicles (EV) and hybrid electric vehicles (HEV) have gained wide attention. Among them, the internal combustion (IC) engine and the electric machine based HEV become the most promising alternatives for the next generation vehicles [1]. The HEV provides the advantages...
This paper presents a noble motor design concept that utilizes amorphous cut cores in the stator to obtain a high efficiency motor. This motor employs 6-pole, 9-slot axial gap construction and aims to provide high efficiency with small size and low cogging torque for fan motor applications. Amorphous cut cores are applied to the stator to decrease iron loss and save motor space. The magnets with distinct...
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