IEEE Electrification Magazine / JUNE 2021 7 Distribution Grid PV System MVac MVac LFT Power Processing System dc ac LVac ac dc dc dc dc ac dc dc dc ac dc dc dc ac LVdc (a) MVac MVac LFT LVdc (b) MVac MVac ac dc MVdc dc dc LVdc (c) Figure 1. The different solutions for integrating the storage system, EV stations, and dc sources into the distribution grid: (a) decentralized solutions with LFTs and multiple dc-dc converters, (b) centralized solutions with an LFT and MTB dc-dc converter, and (c) smart transformer-based solutions with direct MV connection using an MTB dc-dc converter. LVdc LVac ac dc dc dc Storage System Charging Stations