Open AccessVienna Rectifier for DC Charging Pile
Author(s) -
Jun Chou,
Mingda Zhang,
Sijin Wang,
Yihui Sun,
Jianyu Bao
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/768/6/062043
Subject(s) - power factor , control theory (sociology) , total harmonic distortion , rectifier (neural networks) , voltage , capacitor , electrical engineering , harmonics , precision rectifier , current (fluid) , three phase , physics , computer science , engineering , control (management) , stochastic neural network , artificial intelligence , machine learning , recurrent neural network , artificial neural network
A three-phase three-level Vienna rectifier is proposed to improve the power factor and reduce harmonic content for DC charging pile. Based on current hysteresis comparison control strategy, voltage deviation of midpoint of dc-link capacitor is introduced into current reference, and voltage balance of midpoint of dc-link is realized by adjusting the dc offset of current reference. Finally, the simulation model of Vienna rectifier based on PSIM is established, and the feasibility of the control method is verified under the conditions of voltage and load stepping. Under the steady-state condition, the power factor at the grid side is greater than 0.99, and the current harmonic distortion rate is less than 3%.