MVDC Distribution Grids for Electric Vehicle Fast-Charging Infrastructure

Abstract

The electrification of the mobility sector is steadily increasing. Besides established electrical vehicles like railways, also the number of full-electric busses with on-board batteries grows. Moreover, the acceptance and hence the share of electric cars in traffic is continously rising. To further accelerate the electrification of public and individual traffic, large-scale usual and fast-charging infrastructures should be developed. This paper presents different approaches to ensure the proper integration into existing electrical grids. Also, the power supply with medium-voltage direct-current (MVDC) distribution grids that lowers the costs for loss energy and components is presented.