What question did this study set out to answer?

The development aims to enhance grid operations through innovative modules that assist in real-time monitoring and analysis.

January 23, 2026Open Access

D5.2 OPENTUNITY power flow developments (v2)

Key Points

The development aims to enhance grid operations through innovative modules that assist in real-time monitoring and analysis.
Implemented modules for grid management including topology identification and detection tools.
Developed fuse burn detection and state estimation tools for outage recovery.
Created a real-time thermal rating tool to analyze dynamic line ratings based on weather conditions.
Integrated modules into the Advanced Distribution Management System (ADMS) for streamlined operations.
Successfully developed tools to detect line impedances and energized connections.
Enabled early outage detection through fuse monitoring, enhancing recovery times.
Estimated complex voltages across grid nodes, improving reliability.
Assessed voltage variations due to Distributed Energy Resources (DER), aiding in stability analysis.

Abstract

This document presents the implemented and final version of the OPENTUNITY modules providing services and technologies for grid operators. The summary and purpose of each of the modules is presented below: Topology identification tool:Aims to determine both the connections and line impedances, without knowledge of line infrastructure. Topology detection tool:The system operator knows the line infrastructure and their impedances and needs to determine the ones that are currently energized. Fuse burn detection tool for early outage and islanding recovery:In certain cases, the normal operation of a triphasic line gets disrupted when a fuse from one phase blows. The aim of the task is to detect the blown fuse through the monitoring of the voltage at end user level and the appropriate calculations. Enhanced state estimation tool:Aims to retrieve the unknown system state, that is, the complex voltages at all buses and connection points. Critical point detection tool:The aim of this tool is to detect critical points in a branch given the capacity limits of the different sections of cable in the same line. Short term analysis of the impact of DER in the Distribution grid:The aim of this tool is to study the voltage variations due to DER fluctuations that might impact the stability in the transient state. Real-Time Thermal Rating (RTTR) tool:The aim of this tool is to develop a Dynamic Line Rating algorithm based on weather condition estimation. Each module is described in detail, focusing on their functionalities and the User Interface that will access those functionalities. A high-level overview of the complete developments can be seen in Section 3. The modules presented have been integrated to the Advanced Distribution Management System (ADMS) developed by ETRA called ÉTER. The RTTR module integration into ÉTER will be further discussed in the WP6. Finally, the conclusion of the development performed and the next steps (linked to deployment and demonstration activities) are explained in the “Conclusions” section.

D5.2 OPENTUNITY power flow developments (v2)

Key Points

Abstract

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