Title :
Sliding-Mode-Control-Based Boost Converter for High-Voltage–Low-Power Applications
Author :
Leon-Masich, Antonio ; Valderrama-Blavi, Hugo ; Bosque-Moncusi, Josep M. ; Maixe-Altes, Javier ; Martinez-Salamero, Luis
Author_Institution :
Dept. d´Eng. Electron., Electr. i Autom., Univ. Rovira i Virgili, Tarragona, Spain
Abstract :
This paper presents the analysis and design of a very high-voltage-gain single-stage boost converter operating at the boundary between continuous conduction mode (CCM) and discontinuous conduction mode (DCM). The converter is supplied by a 12-V car battery and attains 1200 V with a voltage gain of 100. The use of a hysteretic comparator in the control loop precludes the risk of modulator saturation and facilitates the operation at the mentioned boundary. Sliding-mode control theory is applied to analyze the dynamic behavior of the switching regulator and to establish the system stability conditions. The performance of the converter is investigated using silicon carbide (SiC) devices for the power switch realization. LED-based efficient lighting systems can be a promising application of the proposed system.
Keywords :
modulators; power convertors; variable structure systems; LED-based efficient lighting systems; SiC; car battery; continuous conduction mode; control loop; discontinuous conduction mode; high-voltage-gain single-stage boost converter; high-voltage-low-power applications; modulator saturation; power switch realization; silicon carbide devices; sliding-mode control theory; sliding-mode-control-based boost converter; system stability conditions; voltage 12 V; voltage 1200 V; voltage gain; Inductors; JFETs; Modulation; Silicon carbide; Sliding mode control; Switches; Topology; High-voltage gain; LED supplies; hysteresis modulation; silicon carbide (SiC) devices; sliding-mode dynamics;
Journal_Title :
Industrial Electronics, IEEE Transactions on
DOI :
10.1109/TIE.2014.2327004
