Open AccessAdaptive vector control for voltage source converters
Author(s) -
Milasi Rasoul M.,
Lynch Alan F.,
Li Yun Wei
Publication year - 2013
Publication title -
iet control theory and applications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.059
H-Index - 108
eISSN - 1751-8652
pISSN - 1751-8644
DOI - 10.1049/iet-cta.2011.0785
Subject(s) - control theory (sociology) , converters , vector control , voltage , computer science , adaptive control , control (management) , control engineering , engineering , artificial intelligence , electrical engineering , induction motor
In this work, an adaptive vector controller is designed for a three‐phase voltage source converter (VSC) to provide power factor compensation. The method relies on a third‐order non‐linear model of the VSC, which includes parametric uncertainty. The proposed method ensures asymptotic tracking of the q ‐axis current using an inner loop, which contain two proportional–integral (PI) controllers that have adaptive decoupling terms. The output of an outer loop PI controller for dc voltage defines the reference for the d ‐axis current control. The asymptotic stability of the closed‐loop is proven using Lyapunov's method. The performance of the proposed method is evaluated in simulation and experiment, and results show improved performance and ease of controller tuning.