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The Conservative Power Theory (CPT) is one of the latest approaches to definitions of powers and compensation in systems with nonsinusoidal voltages and currents. It is shown in this paper that the CPT misinterprets power phenomena in electrical systems, however, and it does not create right fundamentals for the power factor improvement by reactive compensation. In particular, capacitive compensation...
The paper presents the energetic performances of a system used for drying of current transformer from 110 kV Ciungetu power station. In fact, the drying process is based on an induction heating system that contains a half-controlled rectifier and a voltage source inverter that operates with resonant load. Two frequencies are taken into consideration for the inverter control. The former is the resonance...
This work presents mathematical modeling for the Buck d.c.-to-d.c. converter in continuous conduction mode using analytical solving of its functioning equations. Obtained solutions are validated by numerical simulation in MULTISIM. Upon the obtained equations is derived a design algorithm for the Buck converter, which is validated for an input values set, by numerical simulation, both in MULTISIM...
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