Desarrollo y validación experimental de un modelo de digitalización de subestaciones basado en IEC 61850.

Abstract

An experimental laboratory setup was implemented to support substation digitalization in accordance with IEC 61850, using the Catamayo–Velacruz–Equasol scheme as a case study. The solution was structured into bay and station levels and integrated IEC 61850-8-1 communications: MMS for supervision and GOOSE for fast signal exchange among IEDs. ANSI overcurrent and distance protection functions were defined from the DIgSILENT PowerFactory electrical model and deployed on Siemens 7SA86 and 7SJ85 relays using DIGSI 5. Validation with the Omicron CMC 356 and Test Universe confirmed protection performance and operating times under single-phase and three-phase faults, as well as event and status visualization in a SCADA system and GOOSE latency measurements using Wireshark. Sampled Values testing could not be performed due to hardware limitations. Overall, the results demonstrate the applicability of IEC 61850 in distribution scenarios and highlight benefits such as greater engineering flexibility and reduced physical interconnections, subject to the availability of compatible equipment.