Abstract
The energy transition and increasing electrification faces system operators with challenges related to the more constrained transmission system operation. Recently finished NEWEPS project addresses these challenges and lifts importance of further developing efficient solutions for securing the system’s post-contingency operation by deployment of corrective, remedial actions. This paper presents one of such solutions developed within NEWEPS project. Based on the system mathematical model, the solution uses optimization methods to find post-contingency corrective actions that secure the system operation with strict mathematical guarantees. The modular structure of the solution allows easy implementation within various platforms and possibility for extensive use of parallelization in the computation process. This allows the solution to be used in or close to real-time. The proposed solution is integrated as an application within NEWEPS real-time test and demonstration platform. Results from a case study, which was done on a medium-sized grid with 44 buses, show that the solution have managed in close to real time to find the appropriate post-contingency corrective actions. By deploying the corrective actions through NEWEPS platform interface, the secure system operation has been restored. The proposed solution can in practice be implemented to automatically deploy the corrective actions, or the suggested corrective actions can be manually deployed at the discretion of the operator.