Designing Medium Voltage Distribution Networks Based on Probabilistic Risk Criteria to Improve Network Reliability – Part II: A Study on Load Uncertainty and Distributed Generation

Mohammadian - Alirezachaei, Hadi; Najafi Ravadanegh, Sajad; Nemati-Jegheh, Davoud

doi:10.22077/ijpe.2025.9435.1018

Designing Medium Voltage Distribution Networks Based on Probabilistic Risk Criteria to Improve Network Reliability – Part II: A Study on Load Uncertainty and Distributed Generation

Articles in Press

Document Type : Original Article

Authors

Hadi Mohammadian - Alirezachaei ¹

Sajad Najafi Ravadanegh ²

Davoud Nemati-Jegheh ³

¹ Department of Electrical Engineering, Sahand University of Technology, Tabriz, Iran

² Faculty of Engineering, Smart Distribution Grid Research Lab, Azarbaijan Shahid Madani University, Tabriz, , Iran

³ Azarbaijan Regional Electric Company, Tabriz, Iran

10.22077/ijpe.2025.9435.1018

Abstract

This study presents the optimal placement of automatic power switches in the distribution network of Tabriz city, considering distributed generation sources and uncertainties arising from load forecasting and renewable energy generation. Given the urban context of the design scope, photovoltaic source penetration is prioritized. The design focuses on optimally positioning remote control switches (RCS) to enhance network reliability and meet automation objectives. For this purpose, an interface has been created to use the optimization force of MATLAB software and the technical computing force of DIgSILENT software. In this case, system index’s are calculated in DIgSILENT software for each scenario in MATLAB, and by calculating the cost probability distribution function, the level of riskiness of the system is evaluated according to the number of installed switches. Due to the large volume of study results, a part of the studies and research results will be presented in this article.

Keywords

Active distribution network

microgrid

load flow

operation

reliability

optimization