This report presents research activities aimed at developing a three-phase Stand-Alone Merging Unit (SAMU) with advanced functionalities for compensating for the errors and non-linear and hysteretic behavior of voltage and current transformers used for voltage, current, energy, and supply quality measurements. The measurement transformer models that will be implemented in the SAMU for this purpose are also presented. <\/p>\n","protected":false},"author":93,"featured_media":0,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"footnotes":""},"tags":[1311,1324,1408,1377,1338,1407,1633],"targets":[1317],"rapporti_tipologie":[762],"class_list":["post-195676","rapporti","type-rapporti","status-publish","hentry","tag-digitalization","tag-electricity-network-en","tag-measurement-transformers","tag-monitoring-and-control","tag-power-quality-en","tag-quality-of-supply","tag-dc-transmission","targets-research","rapporti_tipologie-report-en"],"acf":{"projects":{"ID":191050,"post_author":"464","post_date":"2024-07-10 16:51:19","post_date_gmt":"2024-07-10 14:51:19","post_content":"","post_title":"Architecture and management models of the electrical system and grids","post_excerpt":"The project aims to develop methodologies, software tools, prototypes and demonstrators to optimise electric transmission and distribution grids, as well as new architecture and system management models and new regulatory schemes that encourage the integration of renewable and non-programmable generation, self-generation, storage systems and aggregators, and that take into account electric penetration.","post_status":"publish","comment_status":"open","ping_status":"closed","post_password":"","post_name":"architecture-and-management-models-of-the-electrical-system-and-grids","to_ping":"","pinged":"","post_modified":"2024-08-21 12:10:45","post_modified_gmt":"2024-08-21 10:10:45","post_content_filtered":"","post_parent":0,"guid":"https:\/\/www.rse-web.it\/progetti\/architecture-and-management-models-of-the-electrical-system-and-grids\/","menu_order":0,"post_type":"progetti","post_mime_type":"","comment_count":"0","filter":"raw"},"order_posts":"","dont_show_search":false,"related_posts":false,"dont_show_hompage":false,"show_on_slider":false,"single_post_data":{"titolo_spot":"","post_content":"
The accuracy of voltage and current measurements in Transmission and Distribution networks is increasingly important for a growing number of applications. These are no longer limited to traditional functions aimed at ensuring the correct network setup under steady-state conditions (measurement applications) or during transients (protection), but also include new requirements and aspects such as commercial and fiscal concerns related to the liberalization of the electricity market, supply quality, and phasor measurements. Voltage transformers (VT) and current transformers (CT), used to adapt the voltage and current signals in High Voltage networks to the inputs of the measuring instruments (meters, power meters, PMUs etc.) without compromising their integrity, play an increasingly crucial role in the measurement chain. Their transduction characteristics, which may be affected, depending on the technology used, by non-linearity, hysteresis, and saturation, and influenced by factors such as temperature, proximity, and aging, are certainly compatible with historical needs but are no longer adequate for current requirements.<\/p>\n
The availability and expected widespread adoption of equipment designed to digitize the analog voltage and current signals from measurement transformers installed in the Transmission and Distribution networks, known as Stand-Alone Merging Units (SAMU), suggest the possibility of enriching their standardized functionalities with more advanced tools aimed at compensating for the errors and non-linear, hysteretic, and saturation behavior of the measurement transformers themselves. Last but not least, SAMUs could also ensure certain functionalities usually performed by measuring devices such as power meters and phasor measurement units.<\/p>\n
The activities conducted and reported in this document concern the completion of the SSAMU\u00b3 prototype with advanced functionalities, both in terms of hardware and software, and the definition of the tests that will be conducted to characterize it. The S-SAMU\u00b3 will be used for accurate measurement of harmonic content and Power Quality events, as well as for compensating for the non-linearities introduced by VTs and CTs through the use of compensation models developed in collaboration with Italian universities working on these topics.<\/p>\n","link_estreno":false,"scarica_file":[{"download_option":"download","file_name":"Download Report","download":{"ID":166963,"id":166963,"title":"20010129","filename":"20010129.pdf","filesize":3142560,"url":"https:\/\/www.rse-web.it\/wp-content\/uploads\/2022\/05\/20010129.pdf","link":"https:\/\/www.rse-web.it\/en\/rapporti\/modelli-di-trasformatori-di-misura-e-applicazioni-evolute-di-stand-alone-merging-unit-per-il-miglioramento-dellaccuratezza-dei-trasformatori-di-misura\/attachment\/20010129\/","alt":"","author":"93","description":"","caption":"","name":"20010129","status":"inherit","uploaded_to":166962,"date":"2022-05-18 09:25:29","modified":"2022-05-18 09:25:29","menu_order":0,"mime_type":"application\/pdf","type":"application","subtype":"pdf","icon":"https:\/\/www.rse-web.it\/wp-includes\/images\/media\/document.png"}}],"button":{"text":"","link":""},"referente_group":false,"data_emissione":"2020-12-30","autori":"D. Palladini, P. Mazza, L. Barbieri, C. Laurano (RSE S.P.A.), S. Toscani, R. Ottoboni (Politecnico di Milano) M. Luiso, C. Landi, A. Delle Femmine (Universit\u00e0 degli Studi della Campania \u201cLuigi Vanvitelli\u201d) P. Pegoraro, S. Sulis, C. Muscas (Universit\u00e0 degli Studi di Cagliari), V. Cosentino, A. Cataliotti (Universit\u00e0 degli Studi di Palermo), R. Tinarelli, A. Mingotti, L. Peretto (Universit\u00e0 di Bologna), D. Giordano, G. Crotti (I.N.Ri.M.)","rapporto":"","rif_rse":"20010129"},"satellite_post_url":""},"yoast_head":"\n