Open AccessRobust one‐step ahead state predictor using adaptive proportional–integral observer
Author(s) -
Kim SeokKyoon,
Lee KyoBeum
Publication year - 2015
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.2014.0819
Subject(s) - control theory (sociology) , converters , observer (physics) , state (computer science) , computer science , power (physics) , class (philosophy) , mathematics , algorithm , artificial intelligence , physics , control (management) , quantum mechanics
This study presents an adaptive one‐step ahead state predictor for a class of uncertain non‐linear systems including power electronic systems such as power converters and motor drives. The proposed predictor is designed using an adaptive proportional–integral observer design method with σ ‐modification so that it robustly estimates the real state without steady‐state estimation errors. The simulation and experiment results demonstrate that the proposed method effectively predicts the one‐step ahead state in the presence of parameter variations.