Smart Transformer Based Meshed Hybrid Distribution Grid (video)

Significant installation of renewable energy sources, storage, and electric vehicles can induce problems such as voltage and current limit violations, reverse power flow, absence of inertia and consequent stability problems, poor power quality, etc. Smart transformer (ST) is a promising solution for avoiding such a changing grid scenario leading to strong grid reinforcements. The ST is a power electronics-based transformer with effective control and communication functionalities with the capability to control the voltage and power flow in electric grid. The ST provides features of conventional power transformer in a distribution grid, and also other benefits such as voltage control, frequency control, load compensation, and interfacing link for various ac and dc infrastructures, thus improving the flexibility of the system. In this talk, different possibilities and capabilities of ST in distribution grid to develop and realize meshed and hybrid distribution grids will be highlighted.