Modelling and Control of a Novel East-European Multiterminal High Voltage DC Network

Abstract

Present day European transmission networks are becoming increasingly congested. Furthermore, this issue limits the integration of renewable energy sources. In order to solve the problem, this paper presents a novel high voltage DC network, consisting of three modular multilevel converters, located in Eastern-Europe. For simulation purposes, detailed equivalent models are used instead of average value models, with the scope of capturing power/energy variations. Moreover, for each converter terminal, vector control is deployed, in order to properly underline the utility of this network. As such, a proper controller tuning technique is shown, that uses Modulus Optimum criterion. Simulations are performed using Matlab/Simulink.