Comparative Performance Analysis Involving a Three-Phase UPQC Operating With Conventional and Dual/Inverted Power-Line Conditioning Strategies
Autor: | Guilherme Masquetti Pelz, Vinicius de Souza, Sergio Augusto Oliveira da Silva, Leonardo Bruno Garcia Campanhol |
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Rok vydání: | 2020 |
Předmět: |
Sinusoidal current
Computer science 020208 electrical & electronic engineering 02 engineering and technology Current source Power (physics) Harmonic analysis Three-phase Control theory Harmonics 0202 electrical engineering electronic engineering information engineering Power quality Voltage source Electrical and Electronic Engineering Electrical impedance Voltage |
Zdroj: | IEEE Transactions on Power Electronics. 35:11652-11665 |
ISSN: | 1941-0107 0885-8993 |
Popis: | This article deals with a complete evaluating and comparative analysis involving static and dynamic performances of a three-phase unified power quality conditioner (UPQC) controlled to operate using conventional and dual/inverted compensation strategies for performing active power-line conditioning. In the conventional strategy, the series converter of the UPQC operates as a nonsinusoidal voltage source, while the parallel converter operates as a nonsinusoidal current source. Differently, when the UPQC operates with a dual/inverted strategy, the series converter operates as a sinusoidal current source, while the parallel converter is controlled to act as a sinusoidal voltage source. Although, in theory, the results achieved using the mentioned strategies looks similar, in practical applications there are considerable differences in both static and dynamic performances that must be considered for choosing the best compensation strategy to be adopted. Thus, this article addresses aspects related to the mathematical modeling, control and generation of the control references applied to the UPQC, which are implemented using two three-level neutral-point clamped inverters. Furthermore, the performance of the UPQC operating under static disturbances (grid voltage harmonics/unbalances and load current harmonics), as well as dynamic disturbances (voltage sags/swells and load changes) are extensively tested by means of an experimental setup. |
Databáze: | OpenAIRE |
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