2026-04-14T07:39:29Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/4285552025-07-17T14:30:53Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Postiglione, Gianluca author Andreotti, M. author Borghetti, G author Finotti, C. author Pacchioni, M author Ripamonti, M. author Albernaz Lacerda Freitas, Vinícius author Gomis Bellmunt, Oriol author Prieto Araujo, Eduardo author Labady, A. author 2024 The present paper describes a Second Generation Statcom, that is a Cascaded H-Bridge (CHB), in which each H-Bridge is coupled with Supercapacitor-based storage (SC assembly), through an improved DC/DC converter. A description of the device composing the proposed topology, together with its main advantages, and an overview to the SC technology, will be provided. A qualitative comparison with the Double-Star Modular Multilevel Converter (MMC) with centralized energy storage will be provided. The main features of the control algorithm will be described, paying attention to the loops and logics specific for the proposed topology, mainly the control of the capacitors and supercapacitor voltages. Finally, some realistic case studies, both with high and low short circuit power, will be described, and the relevant plots will be given, to prove the feasibility and the effectiveness of the proposed solution. Postprint (author's final draft) Àrees temàtiques de la UPC::Enginyeria elèctrica Statcom Energy storage Supercapacitor Inertia Frequency regulation Virtual synchronous machine Grid forming Cascaded H-Bridge Multilevel Converter An improved modular Statcom topology equipped with short-time energy storage and Grid Forming control for HV network voltage and frequency regulation