Extracting Methods of Positive and Negative Voltage Sequences for Unbalanced Three-Phase Systems

Autor: Nemmour Ahmed Lokmane, Boussaid Abdelfettah, Chelli Seif Elislam
Rok vydání: 2020
Předmět:
Zdroj: Artificial Intelligence and Renewables Towards an Energy Transition ISBN: 9783030638450
DOI: 10.1007/978-3-030-63846-7_85
Popis: Various solutions have been proposed in literature for extracting positive and negative sequences related to three phase voltages and currents imbalanced systems. One category of these techniques uses the delay signal cancelation (DSC) according to the well-known Fortescue transformation, other class of these methods are based on the use of an appropriate low pass filters and other ones are based on an advanced computing algorithms such us the recursive least-squares approach (RLS filter). This paper presents a comparative study between the RLS and the delay signal cancelation (DSC) algorithms. In order to evaluate each algorithm performances in terms of rapidity and accuracy in extracting positive and negative sequences components, several tests have been carried out via simulink/Matlab software under balanced and unbalanced source voltages to show the effectiveness poper to each algorithm.
Databáze: OpenAIRE