2026-04-14T09:21:26Zhttps://recercat.cat/oai/request

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

An improved modular Statcom topology equipped with short-time energy storage and Grid Forming control for HV network voltage and frequency regulation Postiglione, Gianluca Andreotti, M. Borghetti, G Finotti, C. Pacchioni, M Ripamonti, M. Albernaz Lacerda Freitas, Vinícius Gomis Bellmunt, Oriol Prieto Araujo, Eduardo Labady, A. Universitat Politècnica de Catalunya. Departament d'Enginyeria Elèctrica Universitat Politècnica de Catalunya. CITCEA-UPC - Centre d'Innovació Tecnològica en Convertidors Estàtics i Accionaments Àrees temàtiques de la UPC::Enginyeria elèctrica Statcom Energy storage Supercapacitor Inertia Frequency regulation Virtual synchronous machine Grid forming Cascaded H-Bridge Multilevel Converter 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) 2024 Conference report Postiglione, G. [et al.]. An improved modular Statcom topology equipped with short-time energy storage and Grid Forming control for HV network voltage and frequency regulation. A: CIGRE Session. "CIGRE Paris Session 2024: 25-30 August 2024: papers and proceedings". CIGRE National Committee, 2024, p. 1-12. https://hdl.handle.net/2117/428555 eng Restricted access - publisher's policy 12 p. application/pdf CIGRE National Committee