# Statistically Characterizing the Electrical Parameters of the Grid Transformers and Transmission Lines

@article{Athari2017StatisticallyCT, title={Statistically Characterizing the Electrical Parameters of the Grid Transformers and Transmission Lines}, author={Mir Hadi Athari and Zhifang Wang}, journal={arXiv: Applications}, year={2017} }

This paper presents a set of validation metrics for transmission network parameters that is applicable in both creation of synthetic power system test cases and validation of existing models. Using actual data from two real-world power grids, statistical analyses are performed to extract some useful statistics on transformers and transmission lines electrical parameters including per unit reactance, MVA rating, and their X/R ratio. It is found that conversion of per unit reactance calculated on…

## Figures and Tables from this paper

## 9 Citations

Interdependence of Transmission Branch Parameters on the Voltage Levels

- PhysicsHICSS
- 2018

This paper analyzes the statistical properties of the electrical parameters of transmission branches and especially examines their interdependence on the voltage levels to find results useful in both creation of synthetic power grid test cases and validation of existing grid models.

Introducing Voltage-Level Dependent Parameters to Synthetic Grid Electrical Topology

- EngineeringIEEE Transactions on Smart Grid
- 2019

This paper proposes a new two-phase methodology to enhance the authors' random-topology synthetic grid modeling, called RT-nestedSmallWorld, by introducing voltage-level dependent parameters, which will distinguish between transmission lines and transformers as they found different characteristics for them in terms of per unit and actual impedances.

Statistically Analyzing Power System Network*

- Computer Science2018 IEEE Power & Energy Society General Meeting (PESGM)
- 2018

This paper introduces a MATLAB GUI-based toolkit that is able to complete a set of comprehensive statistical analysis on a grid network with convenient interactive user interface and may provide guidelines for generating random topology test cases with accurate topological and electrical parameters.

Utilising a Lagrangian approach to compute maximum fault current in hybrid AC–DC distribution grids with MMC interface

- EngineeringHigh Voltage
- 2019

This study develops a novel mathematical framework that applies a Lagrangian energy method to calculate the maximal fault magnitude and uses a perceptron with sigmoid threshold to distinguish and classify the output overcurrent as either ignorable transients or destructive faults.

Control Strategy of DC-Link Voltage for Single-Phase Back-to-Back Cascaded H-Bridge Inverter for MV Drive With Interfacing Transformer Having Tertiary Winding

- EngineeringIEEE Transactions on Power Electronics
- 2019

The control strategy of the dc-link voltage for the SBCI that uses the negative-sequence voltage of the converter is described and the proposed control method is verified with a computer simulation.

DC Fault Current Blocking With the Coordination of Half-Bridge MMC and the Hybrid DC Breaker

- Engineering, PhysicsIEEE Transactions on Industrial Electronics
- 2020

A modified hybrid dc breaker and a half-bridge modular multilevel converter (MMC) are employed to interrupt the dc fault current in a high-voltage direct current transmission system and the necessity to ultrafast mechanical switches is avoided.

Synthetic Active Distribution System Generation via Unbalanced Graph Generative Adversarial Network

- Computer Science, EngineeringArXiv
- 2021

Case studies with several power applications demonstrate that synthetic active networks generated by the proposed UG-GAN framework can mimic almost all features of real-world networks while avoiding the disclosure of confidential information.

Modeling Cascading Failures in Power Systems in the Presence of Uncertain Wind Generation

- Engineering
- 2019

This document summarizes current capabilities, research and operational priorities, and plans for further studies that were established at the 2015 USGS workshop on quantitative hazard assessments of earthquake-triggered landsliding and liquefaction.

Universal Statistics of Redistribution Factors and Large Scale Cascades in Power Grids

- PhysicsIEEE Access
- 2021

The statistics of Line Outage Distribution Factors (LODFs), which describe the rerouting of electric power flows after a line failure, are analysed and it is demonstrated that absolute LODFs are approximately log-normally distributed throughout network topologies.

## References

SHOWING 1-10 OF 10 REFERENCES

Grid Structural Characteristics as Validation Criteria for Synthetic Networks

- EngineeringIEEE Transactions on Power Systems
- 2017

This paper presents a methodology and set of validation criteria for the systematic creation of synthetic power system test cases. The synthesized grids do not correspond to any real grid and are,…

Critical points and transitions in an electric power transmission model for cascading failure blackouts.

- PhysicsChaos
- 2002

Cascading failure in a simplified transmission system model as load power demand is increased is examined and it is found that operation near critical points can produce power law tails in the blackout size probability distribution similar to those observed.

Continuum modeling of electromechanical dynamics in large-scale power systems

- EngineeringIEEE Transactions on Circuits and Systems I: Regular Papers
- 2004

The continuum model presented here therefore relaxes the isotropy and homogeneity constraints assumed in the prior work and is able to model the real power systems that tend to be highly irregular in terms of their geographical topology and the power injections, loads, and shunt elements at the bus locations.

Generating Random Topology Power Grids

- EngineeringProceedings of the 41st Annual Hawaii International Conference on System Sciences (HICSS 2008)
- 2008

The means for producing power grids with scalable size and randomly generated topologies are developed and these ensembles of networks can then be used as a statistical tool to study the scale of communication needs and the performance of the combined electric power control and communication networks.

A methodology for the creation of geographically realistic synthetic power flow models

- Engineering2016 IEEE Power and Energy Conference at Illinois (PECI)
- 2016

To enable greater innovation in power systems, our research seeks to create entirely fictitious synthetic power system networks that capture the functionality, topology, and defining characteristics…

Operational performance of energy storage as function of electricity prices for on-grid hybrid renewable energy system by optimized fuzzy logic controller

- Engineering, Environmental Science
- 2016

Collective dynamics of ‘small-world’ networks

- Computer ScienceNature
- 1998

Simple models of networks that can be tuned through this middle ground: regular networks ‘rewired’ to introduce increasing amounts of disorder are explored, finding that these systems can be highly clustered, like regular lattices, yet have small characteristic path lengths, like random graphs.

Generating Statistically Correct Random Topologies for Testing Smart Grid Communication and Control Networks

- Computer ScienceIEEE Transactions on Smart Grid
- 2010

An algorithm is proposed that generates random topology power grids featuring the same topology and electrical characteristics found from the real data.

On Bus Type Assignments in Random Topology Power Grid Models

- Computer Science2015 48th Hawaii International Conference on System Sciences
- 2015

The correlation between the three bus types of G/L/C and some network topology metrics such as node degree distribution and clustering coefficient is examined and the impacts of different bus type assignments on the grid vulnerability to cascading failures are investigated.