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High efficiency permanent magnet synchronous motors (PMSMs) are commonly used in electric vehicles (EVs) and hybrid electric vehicles (HEVs). PMSMs are generally inefficient at high speed because of the use of the flux weakening control. This paper shows possibility that the variable magnetic flux dual-rotor IPMSM, which has a high efficiency in the high-speed and low-torque region. The efficiency...
The energy density of wave power is higher than some renewable energy sources such as wind and solar energy. However, because waves have an irregular reciprocating motion, it is difficult to convert wave power into electricity, and this has restricted the widespread use of wave power. In this paper, a new mechanism to convert wave power into electricity is proposed. It is referred to as a “direct-link”...
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