Bostjan Polajzer

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—This paper discusses methods for voltage-sag source detection, which are based either on energy, current, or impedance criteria. It is shown that methods known from the literature do not work well, particularly in cases of asymmetrical voltage sags. Therefore, generalized methods for voltage-sag source detection are proposed, using a vector-space approach.(More)
This paper deals with the orthogonal decomposition of currents in a three-phase system. Currents and voltages of the three-phase system are treated as instantaneous values and as continuous functions defined in given interval. In both cases current and voltage vectors are defined. They are decomposed into two orthogonal components. The first one is(More)
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