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Auxiliary Power Unit (APU) is one of the two power sources of series hybrid city bus. The diesel engine of APU is directly mechanically connected with the generator. The electricity power output of generator will fluctuate the engine speed, at the same time, the engine speed changes would affect the power output of generator. So there are very strong coupling characteristics between the engine and...
Constant speed of mobile electrical power sources (EGS) will be soon replaced by optimally controlled variable speed, driving robust permanent magnet generator equipped with power electronics frequency and voltage control. The paper gives short revue of some problems in research and development of optimally variable speed of EGS. The results of modeling and experimental verification EGS with multilevel...
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