# TDNetGen: An open-source, parametrizable, large-scale, transmission and distribution test system

## TL;DR

This paper introduces TDNetGen, an open-source MATLAB toolbox for generating customizable large-scale transmission and distribution network models to facilitate integrated power system analysis.

## Contribution

It presents a novel, flexible toolbox for creating synthetic, large-scale transmission and distribution test systems with customizable features.

## Key findings

- Enables analysis of transmission-distribution interactions.
- Supports simulation of high renewable energy penetration.
- Facilitates development of integrated control and market strategies.

## Abstract

In this paper, an open-source MATLAB toolbox is presented that is able to generate synthetic, combined transmission and distribution network models. These can be used to analyse the interactions between transmission and multiple distribution systems, such as the provision of ancillary services by active distribution grids, the co-optimization of planning and operation, the development of emergency control and protection schemes spanning over different voltage levels, the analysis of combined market aspects, etc. The generated test-system models are highly customizable, providing the user with the flexibility to easily choose the desired characteristics, such as the level of renewable energy penetration, the size of the final system, etc.