Design Of A Power Flow Control Converter For Bipolar Meshed Lvdc Distribution Grids

Flexible power flow control is one of the main challenges in the development of the meshed low voltage direct current distribution system. The most widely adopted approach to achieve flexible power control in the network is to use various solid-state based solutions which are rated for the peak power of the grid. In this paper, we propose a solution based on a converter which has several times smaller power rating than the grid power rating. Due to the multi-port nature of the proposed solution, it is well suited for the bipolar networks.In this paper we show the basic operating principles of the proposed power flow control converter, elaborate on the hardware design and demonstrate the functionality of the proposed solution with experiments.