Interdependence of Transmission Branch Parameters on the Voltage Levels
Abstract
Transformers and transmission lines are critical components of a grid network. This paper analyzes the statistical properties of the electrical parameters of transmission branches and especially examines their interdependence on the voltage levels. Some interesting findings include: (a) with appropriate conversion of MVA rating, a transformers per unit reactance exhibits consistent statistical pattern independent of voltage levels and capacity; (b) the distributed reactance (ohms/km) of transmission lines also has some consistent patterns regardless of voltage levels; (c) other parameters such as the branch resistance, the MVA ratings, the transmission line length, etc, manifest strong interdependence on the voltage levels which can be approximated by a power function with different power constants. The results will be useful in both creation of synthetic power grid test cases and validation of existing grid models.
Keywords
Cite
@article{arxiv.1709.06930,
title = {Interdependence of Transmission Branch Parameters on the Voltage Levels},
author = {Mir Hadi Athari and Zhifang Wang},
journal= {arXiv preprint arXiv:1709.06930},
year = {2017}
}
Comments
To be published (Accepted) in: Proceedings of the 51st Hawaii International Conference on System Sciences (HICSS), Big Island, HI, USA, 2018