Summary

The increasing penetration of renewable energy and converter-interfaced generation is transforming power system dynamics and challenging traditional protection relay schemes.

Reduced fault currents, bidirectional flows, and declining inertia undermine conventional relay coordination, creating risks of miss-operation and instability.

This paper presents the Protection Toolchain (ProToc), a modular and automated framework for adaptive protection in multivariate grids. The ProToc integrates dynamic simulation and

Protection Security Assessment with advanced optimization techniques, including a Binary

Particle Swarm Optimization, within a generic data model. The toolset automates data validation, relay setting calculation, and optimization while supporting adaptive deployment via IEC 61850 interfaces.

The ProToc significantly reduces engineering effort, improves transparency, and ensures relay settings are optimized for both fault clearance and system stability. By bridging protection and stability analysis and enabling adaptive protection strategies, ProToc provides a scalable foundation for future protection engineering practices in converter-rich grids.

Additional informations

Publication type Session Materials
Reference B5_12448_2026
Publication year
Publisher CIGRE
Country Germany
Study committees
File size 623 KB
Price for non member 30 €
Price for member 30 €

Authors

MEYER Georg Janick - Siemens AG Germany; DAUER Maximilian - Siemens AG Germany; HOLTSCHULTE Daniel - Westfalen Weser Energie Germany; LORZ Tobias - Friedrich-Alexander Universität Erlangen- Nürnberg Germany

Protection Toolchain - A modular toolchain for automated protection concepts in multivariate power systems