Simulation design of residential smart-grid based on solid-state transformer

Abstract

This paper provides an overview of an early attempt at developing a method of simulation for residential smart-grid (SG) based on the solid-state transformer (SST). The paper provides a theoretical review of the power converters under consideration as well as their control techniques. While PLECS (Piecewise Linear Electrical Circuit Simulation) models initially completed design verification and electrical properties investigation, synthesis provides recommendations on the optimal configuration of circuit topologies. As a result, this technique allows for the development of high-accuracy simulation models of smart-grid systems, allowing for the investigation of any operating situations at required power delivery. Power converter systems were adjusted for expected power levels included within a simulation of the entire DC smart-grid system for such a purpose. The proposed simulation model examines two alternative energy flow scenarios involving photovoltaics (PV), battery storage systems (BSS), and an AC grid, while evaluating power flow efficiency and qualitative indicators of the AC grid.