Linearization of Cascaded Buck Converter
نویسندگان
چکیده
The present work deals with the modeling and the stability analysis of the cascaded converters. When a converter tightly regulates its output, it behaves as a constant power load (CPL). The problem of CPLs is that they show negative incremental resistance that causes instability in the system because the control to output transfer function possessed a RHP pole. Hence the CPL has been modeled and linearized to study its effect on the source converter. The effect of the introduction of small resistance in series with inductor of source converter on the stability was analyzed. Also the compensation on the basis of the passive components i.e. Snubbers were designed so as to reduce the power dissipation due to the resistance.
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