Abstract
The electric power industry development mean increases the electric grids flexibility through the use of various devices type (FACTS) controlled by means of power electronics and being an element of the Smart Grid. This type of device includes a phaseshifting transformer (PST), which redistributes power flows in the branches of electrical networks. In connection with the relevance of this topic, new technical solutions appear that implement similar functions, which entails the need for a comparative analysis of such developments in order to optimize the energy characteristics of this kind of equipment. The aim of the work is to develop schematic version of the PST made according to the "star" scheme and analyze its operation in typical modes. During the study, the energy characteristics of the device were determined. The possibility of reducing the typical power of the phase-shifting device due to the use of capacitive compensation is analyzed.
Highlights
In the process of SMART GRID concept development and implementation in the electric power industry, the role of FACTS devices, which makes it possible to control the parameters of the power system mode in accordance with the chosen strategy significantly increases
The tasks of ensuring effective control of steady-state and transient modes of electric power systems can be solved by various means, one of which is phase-shifting transformer (PST)
Results of modelling To determine the operating characteristics of the PST, made according to the "star" scheme, in accordance with the developed program of design experiments, the device was studied in no-load and short-circuit modes
Summary
In the process of SMART GRID concept development and implementation in the electric power industry, the role of FACTS devices, which makes it possible to control the parameters of the power system mode in accordance with the chosen strategy significantly increases. The tasks of ensuring effective control of steady-state and transient modes of electric power systems can be solved by various means, one of which is phase-shifting transformer (PST). There is a significant global experience in the use of PST [1 - 12]. Considerable attention is paid to the development of various technical solutions and the study of the operation modes of phase-shifting devices [13 - 19]. This work is devoted to the development and study of a two-transformer circuit version of a phase-shifting transformer made according to the "star" scheme.
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