  Medium-voltage back-to-back (MVB2B) converters can connect two distribution
systems and quantifiably transfer power between them. This function can enable
the MVB2B converter to exchange distributed energy resource (DER)-generated
power between two systems and bring significant value to enhancing distribution
system DER adoption. Our previous work analyzed and demonstrated the value the
MVB2B converter can bring to DER integration. As continuous work, this paper
presents a methodology that helps address the MVB2B converter sizing and
location selection problem in distribution systems with high DER penetrations.
The proposed methodology aims to address three critical problems for MVB2B
converter implementation in the real world: 1) which distribution systems are
better to be connected, 2) what converter size is appropriate for connecting
the distribution systems, and 3) where the optimal connection points are in the
systems for connecting the MVB2B converter. The proposed methodology has been
demonstrated by case studies that include various scenarios involving
distribution systems with different dominated load types and high photovoltaic
penetrations.
