An Efficient Universal AC/DC Branch Model for Optimal Power Flow Studies in Hybrid AC/DC Systems
Year: 2024
Type: article
Abstract: This paper introduces a new efficient universal AC/DC branch model,SADRA, for modelling hybrid AC/DC systems in optimal power flow studies, with provisions of voltage and power controls.SADRAoffers a versatile approach for modelling diverse AC, DC, and AC/DC elements including VSCs and VSC-interfaced elements (including point-to-point and multi terminal HVDC), phase-shifter and tap-changing transformers, and in general, hybrid AC/DC systems, all within a universal model.SADRAdirectly links AC and DC grids, and therefore it is able to use conventional AC equations for modelling. Moreover, it is capable of implementing VSC control actions as well. Due to its compact and simple structure,SADRAis fast and robust. To demonstrateSADRA’s performance, versatility, and speed, two large AC/DC systems with 1359 bus and 3125 buses are studied and the results are compared with the existing methods in the literature. It is shown thatSADRAis a truly universal model, and also successfully implements voltage and power control actions. Additionally, it is demonstrated that in addition to its advantages,SADRAis as fast or faster than the comparable methods in recent literature, and is up to more than six times faster compared to models with control actions provisions.
Author: Mahmoud Shahbazi
Institution: Durham University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W4405219096