Security assessment for higher loaded power system operation to 2030

The objective of this paper was to introduce the concept of a novel assessment process for maintaining operational security in grids with high transmission loading. Curative measures are included in the process. The proposed approach combines Steady-State Security Assessment (SSSA) and Dynamic Security Assessment (DSA) to address future challenges of a changing generation environment and innovative concepts in system operation. Operational security of power systems with DSA as state of the art is introduced. An expert evaluation for future system limits was carried out to reveal the demand for new processes in system operation. The final process represented a joint optimization of dynamic and static security assessment including a feedback loop from DSA to SSSA enabling curative system operation in future grids with the target year 2030.