  This paper presents an analysis of the value that can be realized by
medium-voltage back-to-back (MVB2B) converters in terms of increased
utilization rate of distributed energy resource (DER) and the improvement in
operational conditions. A systematic, transferrable, and scalable methodology
has been designed to analyze and quantify the increased DER value from three
perspectives: 1) curtailment reduction of the DER generation, 2) size reduction
of the energy storage needed to otherwise realize DER hosting levels, and 3)
hosting capacity improvement of DER compared to base distribution circuit
capability. In the case study, the proposed methodology is applied to two
utility distribution systems for analysis and quantification of the grid value
of the MVB2B converter, installed in the distribution circuit, and provided to
the solar photovoltaic (PV) DERs. The analysis results demonstrate that the
MVB2B converter can deliver significant value to PV hosting enhancement of two
adjacent distribution systems when they are connected by the MVB2B converter.
Based on this case study, this paper analyzes and summarizes the approximate
realized grid value of the MVB2B converter for distribution systems dominated
by different shares of customer classes.

Systems and Control;Systems and Control