Monday, August 21st, 2017

Economic impacts of power electronics on electricity distribution systems

Publication year: 2010brbSource:/b Energy, In Press, Corrected Proof, Available online 31 July 2010brCarlos Henrique, Duarte , Roberto, SchaefferbrTo achieve more efficient energy use, power electronics (PEs) may be employed. However, these introduce nonlinear loads (NLLs) into the system by generating undesired frequencies that are harmonic in relation to (multiples of) the fundamental frequency (60 Hz in Brazil). Consequently, devices using PEs are more efficient but also contribute significantly to degradation of power quality. Besides this, both the conventional rules on design and operation of power systems and the usual premises followed in energy efficiency programs (without mentioning the electricity consumed by the devices themselves) consider the sinusoidal voltage and current waveforms at the fixed fundamental frequency of the…

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