Open AccessSensorless second-order switching surface for a three-level boost converter
Author(s) -
Tarek Messikh,
Nasrudin Abd Rahim,
Saad Mekhilef
Publication year - 2019
Publication title -
turkish journal of electrical engineering and computer sciences
Language(s) - English
Resource type - Journals
eISSN - 1303-6203
pISSN - 1300-0632
DOI - 10.3906/elk-1803-60
Subject(s) - control theory (sociology) , boost converter , current (fluid) , surface (topology) , computer science , switching frequency , energy (signal processing) , ćuk converter , control (management) , electronic engineering , engineering , voltage , mathematics , electrical engineering , artificial intelligence , geometry , statistics
This paper proposes a sensorless second-order switching surface to control a three-level boost converter (TLBC). A predictive current method is proposed to reduce the number of sensors in the normal second-order switching surface method. Based on a developed model of the TLBC, the current is estimated and a switching surface is formulated in the state-energy plane. Simulation and hardware tests are carried out to verify the viability and the effectiveness of the proposed control technique. Results obtained show a good performance of the converter in term of DC-bus balancing and fast dynamic response under sudden load change.
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