Open AccessFeedback–feedforward control technique with a comprehensive mathematical analysis for single‐input dual‐output three‐level dc–dc converter
Author(s) -
Ganjavi Amir,
Gholinejad Hamid Reza,
Mehrasa Majid,
Ghoreishy Hoda,
Ahmad Ahmad Ale
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.2020.0811
Subject(s) - feed forward , dual (grammatical number) , control theory (sociology) , computer science , control (management) , forward converter , control engineering , boost converter , engineering , electrical engineering , voltage , artificial intelligence , art , literature
This study proposes a control technique for single‐input dual‐output three‐level dc–dc converter (SIDO‐TLC) using feedback (FB) and feedforward (FF) principles. Through the proposed control strategy, SIDO‐TLC can smoothly function in both buck and boost operating conditions with a fast dynamic. Major duties of the designed FB control loops are to noticeably decrease the recovery time of transient responses under the load variations and accurately balance the boost capacitors voltages. To effectively decouple the introduced control inputs, an external FF controller is assigned that can also enhance the buck and boost voltage regulations. Furthermore, a step‐by‐step assessment is contemplated based on the proposed control loops to make an offline adjustment for the FB and FF coefficients. The proposed controller implemented on SIDO‐TLC is highly suitable for portable applications, where efficiency, cost, and speed are of important factors. The simulation results and the laboratory test setup of SIDO‐TLC using DSP TMS320F28335 are presented to prove the validity of the presented theoretical subjects.