Open AccessNew phasorial oriented single‐PI loop control for industrial VSC‐PFC rectifiers operating under unbalanced conditions
Author(s) -
SantoyoAnaya Mario A.,
SalgadoHerrera Nadia Maria,
RodriguezRodrıguez Juan Ramón,
Castro Luis M.,
MorenoGoytia Edgar L.,
VenegasRebollar Vicente
Publication year - 2020
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2019.0554
Subject(s) - control theory (sociology) , total harmonic distortion , ripple , rectifier (neural networks) , converters , power factor , voltage , voltage source , harmonic , power (physics) , three phase , loop (graph theory) , harmonics , ac power , computer science , engineering , control (management) , mathematics , electrical engineering , physics , stochastic neural network , quantum mechanics , artificial intelligence , machine learning , combinatorics , recurrent neural network , artificial neural network
Due to several reasons, the three‐phase voltages of power grids cannot be balanced. The performance of AC–DC converters using dq 0‐based controls can be severely affected by the presence of unbalanced input AC voltages. Different to these proposals, this study presents a new easy‐to‐implement control scheme based on a single PI loop algorithm for VSC‐PFC rectifiers using a phasorial approach. This new scheme has various significant advantages: (i) fast counteracting of large unbalanced voltage and current conditions; (ii) power factor = 1 at any unbalanced sag operating conditions; (iii) negligible current harmonic distortion and (iv) low‐ripple DC voltage. All these features are concurrently obtained. The proposed single‐PI loop VSC‐PFC rectifier control strategy is theoretically and experimentally validated. A revision of the main results and characteristics of various proposed techniques that are similar to the one proposed in this study is also carried out, qualitatively indicating the main advantages featured by the proposed control strategy for VSC‐PFC rectifiers.