Valeriu Bosneaga

Technical University of Moldova/ Power Engineering Institute · Laboratory of electrical systems modelling

The purpose of the work is study of special asymmetric modes of new three-phase autotransformer device for flexible connection of alternative current power systems. The universal model was developed for the device, containing two autotransformers - the main phase-shifting and the additional regulating autotransformer. The model allows studying both...

The purpose of work is to investigate two - phase short-circuiting modes of new autotransformer FACT’s - type device and is intended for power systems flexible connection. The developed mathematical model contains the main phase-shifting and additional regulating autotransformers. The model allows studying of asymmetrical modes of such schemes, inc...

The scope of the work was the study of the phase failure operating for the new FACT’s type phase-shifting device, intended for the flexible connection of AC power systems. The mathamatical model has been developed for conducting this study. The device contains the main phase-shifting transformer based on hexagon circuit with additional regulating a...

Using the developed model of a four-winding three-legs transformer, calculations were carried out and the peculiarities of some of the most characteristic steady- state asymmetrical modes of conversion power transformer, containing a triangle with extended sides were studied. The open-phase mode and various types of short circuits, combined with th...

Mathematical model for description of flexible alternative current link for connecting power systems with the same rate of frequency is described. The model allows estimating the oscillations of transmitted instantaneous and active powers at different steps of angle adjusting and for other parameters of considered flexible coupling between power sy...

Based on the previously proposed model the simulations were made and characteristic features of steady asymmetric modes of three-phase core type (three leg) transformer were investigated for zigzag winding connection, taking into consideration the electromagnetic coupling of windings, located on different legs. Calculations and analysis were conduc...

1 2 3 4 5 6 1. Фaзopeгyлиpyющee ycтpoйcтвo c пepeключeниeм в нeйтpaли Печ. "Ştiinţa", cul. de articole "Упpaвляeмыe caмoкoмпeнcиpyющиecя линии элeктpoпepeдaчи", 1978. 9 p. -2. Фaзopeгyлиpyющий тpaнcфopмaтop c coeдинeниeм oбмoтoк пo cxeмe мнoгoyгoльникa. -"-"Ştiinţa", cul. de art. "Peжимы yпpaвляeмыx caмoкoмпeнcиpyющиxcя линий элeктpoпepeдaчи", 1979...