Open AccessReduced order linear quadratic regulator controller for voltage multiplier cells integrated boost converter
Author(s) -
Palaveashem Mangaiyarkarasi,
Anbukumar Kavitha
Publication year - 2016
Publication title -
iet circuits, devices and systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.251
H-Index - 49
ISSN - 1751-8598
DOI - 10.1049/iet-cds.2016.0228
Subject(s) - control theory (sociology) , converters , linear quadratic regulator , boost converter , controller (irrigation) , inductor , voltage , voltage regulator , computer science , electronic engineering , engineering , mathematics , optimal control , electrical engineering , mathematical optimization , agronomy , control (management) , artificial intelligence , biology
The recent development in high gain DC–DC converters motivates its application on renewable energy systems with low output voltage such as photovoltaic cells resulting in the requirement of high voltage gain converters with improved static and dynamic characteristics. This study proposes an optimal reduced order linear quadratic regulator controller for a reduced order model of a voltage multiplier cell (VMC) integrated boost converter with two sensors for measuring the output voltage and the input inductor current. The dynamic performance of linear quadratic regulator controller over load, line and component perturbations are shown through extensive simulation studies on the reduced order model developed and the comparison is accomplished with conventional hysteresis current controller in order to disclose the best control technique in terms of dynamic response. The extensive analysis based on simulated results are verified exactly with a measured results in a 100 W prototype operating in continuous conduction mode VMC integrated boost converter controlled using DSPIC30F4011 processor. The control technique proposed computes error coefficients with less computation time, guarantees excellent system stability and offers improved dynamic characteristics for VMC integrated boost converter with reduced number of sensors.