Sep 2026· 2026 International Conference on Smart Energy Systems and Technologies (SEST)· pp. 1-6· 0 citations· 15 references
Abstract
This paper investigates the impact of an ETCS on the small-signal stability of the medium-voltage (MV) grid to which it is connected. An analytical approach based on a state-space model of the grid that integrates the ETCS is developed to analyze the movement of eigenvalues in the complex plane. In addition, time-domain simulations are conducted to investigate rapid voltage changes and the dynamic response of the power exchanged between the AC grid and the ETCS. The considered DC microgrid is represented by an equivalent model, where the overall system dynamics are dictated by the DC bus. A Belgian local MV network is used as a case study, with dynamic modeling performed in DIgSILENT PowerFactory. The obtained results show that the equivalent truck charger introduces an additional stable mode, whose movement is dictated by the connection rate of the subscribed load power at the load buses. Furthermore, the rapid voltage change resulting from the sequential connection of trucks rated is estimated to be 3.5%
In this paper, a new strategy is proposed for controlling the on-load tap changer (OLTC) of medium-/low-voltage (MV/LV) transformers. The primary objective is the real-time voltage regulation of unbalanced, low-voltage (LV) distribution grids. Emphasis is placed on the mitigation of undervoltages that may occur during...
G. Kryonidis, Nikolaos I. Charsoulas, C. Athanasiadis et al.· 2026 International Conferenc...· 0 citations
The increasing penetration of inverter-based resources (IBRs) is fundamentally changing the power system dynamics, resulting in weaker-grid conditions with reduced system inertia and more frequency fluctuations. These conditions also raise questions about the validity of classical stability analysis. In this paper, the...
Carles Jiskoot Busquets, Giuseppe Urbano Tortorici, Guo-Qing Gao et al.· Zbornik radova Fakulteta teh...· 0 citations
Introduction. In 6-10 kV electrical networks with high-power induction motors, emergency modes accompanied by voltage sags, motor starts, and self-starts significantly reduce the reliability of power supply. The selection of the Automatic Transfer Switch (ATS) operating speed is of particular importance, as the superpo...
B. A. Korobeinikov, A. M. Oppakhodzhaev, D. I. Sidorov· Вестник Северо-Кавказского ф...· 0 citations
When connecting a wind park (WP) to the main grid (MG) by way of an HVDC Light transmission system, the WPbecomes decoupled from the MG, which results in several technical and economical benefits, on a variety of aspects, for transmission system operators (TSOs), WP developers and WTG manufacturers. Perhaps most import...
G.Balaji, K. Srikanth· Journal of Science & Technol...· 0 citations
The article discusses the task of analyzing the operation of a static synchronous compensator (STATCOM) in the mode of reactive power compensation using the method of simulation modeling. The relevance of the study is due to the current trends in the development of electric power systems, characterized by an increase i...
V. Sytnik· Mining equipment and electro...· 0 citations
Electric vehicle charging stations significantly impact the performance of three-phase (11/0.4 kV) distribution transformers, as unbalanced and variable loads lead to higher temperatures and increased power loss. They also contribute to reduced transformer life and increased risk of failure. This paper demonstrates the...
H. N. Al-Kaoaz, Omar Sh Al-Yozbaky· Al-Rafidain Engineering Jour...· 0 citations
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