Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Continuous Time Simulation and System Level Control Model of a Modern MVDC Distribution Grid including SST and MMC Based AFE

Version 1 : Received: 2 April 2024 / Approved: 3 April 2024 / Online: 3 April 2024 (10:00:31 CEST)

How to cite: Siemaszko, D.; Carpita, M. Continuous Time Simulation and System Level Control Model of a Modern MVDC Distribution Grid including SST and MMC Based AFE. Preprints 2024, 2024040284. https://doi.org/10.20944/preprints202404.0284.v1 Siemaszko, D.; Carpita, M. Continuous Time Simulation and System Level Control Model of a Modern MVDC Distribution Grid including SST and MMC Based AFE. Preprints 2024, 2024040284. https://doi.org/10.20944/preprints202404.0284.v1

Abstract

The medium-voltage DC (MVDC) technology has gained increasing interests in recent years. Power electronics devices dominate those grids. Accurate simulation of such a grid, with detailed models of switching semiconductors, can quickly became very time-consuming, according to the number of connected devices to be simulated. A simulation approach based on interactions on a continuous time model can be very interesting, especially for developing a system level control model of such a modern MVDC distribution grid. Aim of this paper is to present all the steps required for obtaining a continuous time modelling of a +/- 10 kV MVDC grid case study, including Solid State Transformer (SST) and Modular Multilevel Converter (MMC) based Active Front End (AFE). Additional aim of this paper is to supply an educational content about the use of the continuous time simulation approach, thanks to a detailed description of the various devices modelled into the presented MVDC grid. The results of a certain number of simulation scenarios are eventually presented.

Keywords

DC distribution systems; Power systems simulation; Power distribution control; Power system planning,; Pulse Width Modulation; Modular Multilevel Converter (MMC); Solid State Transformer

Subject

Engineering, Electrical and Electronic Engineering

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