Pi Controller Design For Dcm Operated Boost Converter
Öz
Controller design is an important phase of designing power electronics converters. Power electronics converters are non-linear dynamical systems. Without control output may not be what is needed by load. Power electronics converters are subject to disturbances like: input voltage’s changes and/or output load’s changes. Bypassing these disturbances and force the converter to track the reference command is the job of controller. This paper study the control problem of a boost converter operated in Discontinuous Conduction Mode (DCM). Instead of using well known linear model extraction techniques like State Space Averaging (SSA) or circuit averaging which requires a large amount of calculations and considerable amount of time to learn the methods itself, a system identification approach is used for modeling. A PI controller is designed for the obtained model. Close loop system is tested in Simulink® environment. Simulation results showed the performance of designed controller.
Anahtar Kelimeler
Boost converter, Discontinuous conduction mode, Feedback control, Non-minimum phase system, System identification
Kaynakça
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