An Implementation Of Full-State Observer And Controller For Dynamic State-Space Model Of Zeta Converter

• Main Authors: SARKAWI, HAFEZ, Jali, Mohd Hafiz
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://eprints.utem.edu.my/id/eprint/8831/1/SHPKPT2013_ITK_Accepted_paper_Hafez.pdf; http://eprints.utem.edu.my/id/eprint/8831/

Zeta converter is a fourth order dc-dc converter that can increases (step-up) or decreases (step-down) the input voltage. The converter needs feedback control to regulate its output voltage. A full-state observer can be used to estimate the states of the system in condition the output must be observable. The estimated states can be fed to full-state feedback controller to control the plant. This paper presents the dynamic model of zeta converter. The converter is modeled using state-space averaging (SSA) technique. Full-state observer and controller are implemented on the converter to regulate the output voltage. The simulation results are presented to verify the accuracy of the modeling and the steady-state performance subjected to input and load disturbances.