RT info:eu-repo/semantics/article T1 AC/DC optimal power flow and techno-economic assessment for hybrid microgrids: TIGON CEDER demonstrator A1 Martín-Crespo, Alejandro A1 Hernández-Serrano, Alejandro A1 Izquierdo-Monge, Óscar A1 Peña-Carro, Paula A1 Hernández-Jiménez, Ángel A1 Frechoso Escudero, Fernando A1 Baeyens Lázaro, Enrique K1 AC/DC optimal power flow K1 hybrid microgrids K1 key performance indicators K1 polynomial optimization K1 techno-economic assessment K1 Python K1 3306 Ingeniería y Tecnología Eléctricas AB In recent years, the interest in electric direct current (DC) technologies (such as converters, batteries, and electric vehicles) has increased due to their potential in energy efficiency and sustainability. However, the vast majority of electric systems and networks are based on alternating current (AC) as they also have certain advantages regarding cost-effective transport and robustness. In this paper, an AC/DC optimal power flow method for hybrid microgrids and several key performance indicators (KPIs) for its techno-economic assessment are presented. The combination of both calculations allows users to determine the viability of their hybrid microgrids. AC/DC networks have been modeled considering their most common elements. For the power flow method, polynomial optimization is formulated considering four different objective functions: the minimization of energy losses, voltage deviation, and operational costs and the maximization of the microgrid generation. The power flow method and the techno–economic analysis are implemented in Python and validated in the Centro de Desarrollo de Energías Renovables (CEDER) demonstrator for TIGON. The results show that the calculated power flow variables and those measured at CEDER are practically the same. In addition, the KPIs are obtained and compared for four operating scenarios: baseline, no battery, battery flexibility, and virtual battery (VB) flexibility. The last scenario results in the most profitable option. PB Frontiers Media SA SN 2296-598X YR 2024 FD 2024 LK https://uvadoc.uva.es/handle/10324/75757 UL https://uvadoc.uva.es/handle/10324/75757 LA eng NO Frontiers in Energy Research, Agosto 2024, vol. 12, p. 1-14 NO Producción Científica DS UVaDOC RD 13-jul-2025