Multi-port Smart Transformer Integration in Residential Buildings

The smart transformer (ST) will become a fundamental element in the future of smart distribution grids. STs allow energy management by facilitating the connection between high and low voltage electric grids points, renewable energies, and energy storage devices. Multiport transformers have multiple windings for inputs and outputs, allowing different loads and generators to be connected to the same device. Multiport transformers combined with solid-state transformers (SST) could be an optimal solution for smart grids, as they can configure their operation mode on each port in accordance with the desired control strategy. This work proposes the use of a Multiport ST (MPST) in a residential building, which has batteries, photovoltaic panels, and electronic drivers to power the elevators. The paper proposes a coordination strategy for the different ports and tests its operation in different simulation cases.