TY - JOUR AU - Sirotin, Iu. A. PY - 2016/06/25 Y2 - 2024/03/29 TI - ORTHOGONAL COMPONENTS OF THE THREE-PHASE CURRENT AT ASYMMETRICAL ACTIVE - REACTIVE LOAD IN 4-WIRE CIRCUIT JF - Electrical Engineering & Electromechanics JA - Electrical Engineering & Electromechanics VL - 0 IS - 3 SE - Power Stations, Grids and Systems DO - 10.20998/2074-272X.2016.3.10 UR - http://eie.khpi.edu.ua/article/view/2074-272X.2016.3.10 SP - 62-66 AB - <strong><em>Purpose</em></strong><em>.</em><em> For the unbalanced sinusoidal mode with asymmetric voltage in 3-phase 4-wire circuits to receive the orthogonal 4-component decomposition of 3-phase current, are classified symmetry/asymmetry of active and reactive load elements separately. <strong>Methodology</strong><strong>. </strong>The methodology is based on the vector approach, which with one voice allows to analyze the energy characteristics of a 4-wire and 3-wire circuits as balanced and unbalanced modes. At asymmetrical voltage the matrix representation methodology of the equivalent conductivities is used. <strong>Results. </strong>For 3-phase 4-wire network with a sinusoidal unbalanced mode with asymmetric voltage obtained 4-component orthogonal decomposition of the 3-phase current. The components have a clear electro-energetic sense and are classified irrespective by the load condition. <strong>Originality</strong>. The resulting decomposition current develops the theory Currents' Physical Components (CPC) for 4-wire circuit with asymmetric voltage. For the first time the unbalanced current is classified by activity and reactivity of asymmetry load elements. <strong>Practical value.</strong> Practical value of the obtained orthogonal decomposition current and the power equation is a possibility of their utilization for the increase both quality of delivery and quality of consumption of electrical energy. </em> ER -