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This paper suggests the MEMS air turbine that used for the MEMS electromagnetic induction type generator. In the MEMS air turbine that employed the fluid dynamic bearing system, the gap between the magnet and the magnetic circuit and the eccentric motion of the rotor are problem in the high efficiency and the high output power. The developed MEMS air turbine has miniature silicon structure and the...
This paper proposes miniaturized electromagnetic type power generators that compose of an air turbine by the MEMS (Micro Electro Mechanical Systems) technology and a magnetic circuit by the multilayer ceramic technology. Small and high energy density power supplies have been required with the increase in power consumption of electronic equipment. However, conventional power supplies have been reaching...
This paper presents a successful automatic voltage regulation of high-efficiency interior permanent-magnet (IPM) synchronous generators for pico-hydro power generation system. A 1-kW 4-pole V-type IPM generator with low voltage regulation is used for laboratory test in stand-alone hydro energy conversion system. It has been found from experimental results that the constant output voltage is supplied...
This paper presents a successful design of a high-efficiency interior permanent-magnet generator which keeps terminal voltage constant from no load to rated load under a constant speed. This means the generator does not need the voltage control due to the voltage drop associated with the increase in load. Time-stepping finite-element analysis has been used to successfully predict the electromotive...
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