Research Project LI-SA

The national project LI-SA is dedicated to the challenge of grid operation in interconnected grids, especially in transmission grids, which have become increasingly complex in recent years. However, maintaining grid security remains of paramount importance. In this context, performing oline dynamic grid security assessments (online DSA) plays a crucial role for grid operators to assess grid stability during ongoing grid operation.

The overarching aim of the LI-SA research project is to develop assistance systems that enable the safe and economical operation of electrical grids with low inertia and a high shares of renewable energies. For this purpose, a modular DSA system (Low Inertia Security Assessment System: LI-SA) is being developed, which enables the security assessment of interconnected systems with low rotational energy. The system consists of a flexible research and development system (LI-SA-RD), a validation and testing environment (LI-SA-VT) and a dynamic real-time simulation system (LI-SA-RT), which are connected via suitable interfaces. Through this infrastructure, new types of DSA modules are developed, built and tested in order to address customer-specific problems.