Suggestion and Feasibility Study for Massively Parallel Back-To-Back System

Abstract

This paper presents new concept of BTB. The main feature of proposed BTB is “Massively Parallel”. This system consists of a number of small or medium-capacity inverter units and they are connected in parallel. The concept of transmission power control, when unit fault occurs and BTB losses are minimalized, are investigated using MATLAB. The method for EMTP model of the new BTB is investigated, too. After this research, the new BTB system turns out to be very promising for large power system application because loss of the system is very small rather than conventional BTB using VSC (Voltage Source Converter), it can keep operating even if a inverter unit fails and it can improve power transmission capabillity.