Summary

The increasing integration of inverter-based resources (IBRs) into power transmission systems leads to significant challenges to power system protection schemes, particularly for distance relays (DRs). DRs were developed based on the behaviour of synchronous generators (SGs) during faults on the grid and are still used to protect grids interconnected with IBRs. However, the endogenous current limitation and dynamic voltage support provided by IBRs during faults can cause DRs to mis-operate. RTE, the French TSO, is currently investigating the impact of

IBRs on different DR implementations due to an increasing penetration of IBRs in its grid. The aim of this paper is to present the test results of Wind Power Plant (WPP) impacts on three different DRs (A, B, and C) using Real-Time Relays Testing and analyses the causes of their mis-operations.

The results of this study show that all the elements of these DRs, fault detection, phase selection, fault direction, and fault impedance computation are impacted by the WPP under both balanced and unbalanced faults. Additionally, mis-operations of DRs are more significant for phase-tophase (LL) and three-phase (LLL) faults than for single-phase-to-ground (SLG) faults.

Additional informations

Publication type Session Materials
Reference B5_10845_2026
Publication year
Publisher CIGRE
Country France
Study committees
File size 816 KB
Price for non member 30 €
Price for member 30 €

Authors

DIALLO Mamadou-Saliou - RTE France; ROBLEZ Darius - RTE France; GHAFARI Christophe - Université de Grenoble; GUIBOUT Christian - Université de Grenoble; BOUDINET Cédric - RTE France; RAISON Bertrand - RTE France; CAIRE Raphaël - RTE France

Keywords

Distance Relay, Inverter-Based Resources, Wind Power Plant, Power Transmission Line

Wind Power Plant Impacts on Distance Protections-Real Time Relays Testing