Donetsk National Technical University
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https://ea.donntu.edu.ua/jspui/handle/123456789/23216| Title: | ЭКВИВАЛЕНТНЫЕ СХЕМЫ ЗАМЕЩЕНИЯ НЕСИММЕТРИЧНЫХ ТРЕХФАЗНЫХ СИСТЕМ |
| Other Titles: | Еквівалентні схеми заміщення несиметричних трифазних систем Equivalent Сircuits of Asymmetric Substitution of Three-Phase Systems |
| Authors: | ФЕДОРОВ, М.М. КУТКОВОЙ, И.П. КУТКОВИЙ, І.П. FEDOROV, M.M. KUTKOVOY, I.P. |
| Keywords: | three-phase system replacement scheme method of symmetrical components complex impedance idling short circuit трифазні системи схема заміщення метод симетричних складових комплексний вхідний опір холостий хід коротке замикання трехфазные системы схема замещения метод симметричных составляющих комплексное входное сопротивление холостой ход короткое замыкание |
| Issue Date: | 2013 |
| Publisher: | ДонНТУ |
| Citation: | Наукові праці Донецького національного технічного університету. Серія "Електротехніка і енергетика". № 1 (14), 2013 р., 358 с. |
| Abstract: | Разработаны методы определения параметров эквивалентной схемы замещения несимметричных трехфазных систем. Предложен алгоритм определения комплексов ЭДС эквивалентной схемы замещения и способ определения внутренних сопротивлений каждой из фаз с учетом активной и реактивной составляющей. |
| Description: | Exploitation of the three-phase systems is accompanied by the different asymmetrical modes. Similar unsymmetries can be caused by the disrepairs of separate sources three-phase E.M.F. or sharply asymmetrical loading, including different malfunctions of separate consumers. Similar unsymmetry has influence on the modes of operations of different consumers. For the estimation of electromechanics descriptions and mode of operations of separate consumers it is very convenient to have an equivalent chart of substituting for the three-phase system, Equivalent circuit of three-phase substitution systems can be represented by a star and a detector contains six elements: three asymmetrical sinusoidal E.M.F. source and three integrated resistance. When defining complex resistances individual phases, input resistance, complexes are used to determine which you need to perform the following tests: 1) experience of idling on the appropriate clamps; 2) experience a short circuit; 3)experience with famous capacitive impedance. Next, on the known formulae are complex impedances separate phases. Complexes phase E.M.F. equivalent chart of substitution in general case is the asymmetrical three-phase system the parameters of which are determined by means of method of symmetric constituents. For the three-wire system, the constituents of a zero sequence are absent, therefore we will have three sources straight-in and by a reverse sequence. Complexes of the E.M.F. are determined using a complex linear voltage. These complexes are formed according to the results of stress analysis of linear experiences idling and their vector diagrams. |
| URI: | http://ea.donntu.edu.ua/handle/123456789/23216 |
| Appears in Collections: | 2013_Випуск № 1 (14) |
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