Rapid increase of renewable energy generation sources located in remote and distant areas require a new approach for energy transmission.
Power transportation over long distances using traditional HVAC systems faces severe technical and economical challenges. Thus, the concept of multi terminal VSC based HVDC systems is introduced to address those issues and interface remote electricity generation units into the onshore grids, laying the foundations for proposed future DC supergrids.
Additional converter stations sharing a common DC link require novel control strategies for achieving desired active power sharing between the stations.
This Master thesis provides analysis of the converter control strategies in MTDC operation.
Furthermore, methods of engineering optimization are introduced in order to minimize power losses in the systems operation.
The system is modeled in PSCAD environment linked with MATLAB for implementing the optimization algorithm. A laboratory validation of the simulations on a scaled down 15 kW platform is also provided.