Report describing the results of the case studies conducted

Multiport Power Converters (MPC) are presented as a general power electronics solution for enhancing power operation in the distribution networks. MPCs might integrate three or more applications into a single device. In a context where the energy transition requires the introduction of converters in power systems, MPCs emerge as a promising technology to facilitate its integration while keeping projects economically feasible.

Until now, iPlug project explored various applications of MPCs in power systems and evaluated its more convenient topologies and developed specific methodologies to size, locate, and operate these converters. Based on the work of WP1, this document evaluated the MPCs inclusion in multiple real networks. Thus, six specific use cases are investigated.

Three use cases are applied to buildings, where the MPC is integrated into the consumer’s electrical network. An energy-based optimization is applied to find the nominal power of the MPC terminals connected to PV, Battery Energy Storage System (BESS), Electric Vehicle (EV), other electric loads and the main grid. Furthermore, a cost analysis is also performed to identify when the MPC will be more cost-effective than traditional solutions and when the BESS will be economically feasible.

One use case investigates the role of the MPC in a LV electrical network with different voltage levels and potential to integrate PV and EV. A grid-based optimization is applied to find the nominal power of the MPC terminals and analyze the system performance. Different scenarios of MPC, PV and EV penetration are also compared.

Another study case is focused on a MV network. The grid-based optimization is applied to introduce the MPC into the network. In this case, a first analysis is performed on a simple network and later a real use case is analyzed. Several MPC scenarios are analyzed by changing the objective function and loads of the system.

Finally, an MPC is investigated from a resilience perspective. This use case examines the base resilience of an actual MV electrical network. This analysis requires accurate research about the hazards that might impact the system and the system’s vulnerabilities. Based on the results, it is explored the most convenient application of the MPC to maximize resilience increase and risk reduction.