A Fuzzy Based Sliding Mode Controller Design for a Voltage Regulated Boost Converter
نویسندگان
چکیده
This paper proposes the implementation of a fuzzy based robust sliding model control design to obtain voltage regulation in a boost converter with high dc gain. The proposed controller has an inner loop based on slidingmode control whose sliding surface is defined for the input inductor current. The current reference value of the sliding surface is modified by a fuzzy logic controller in an outer loop that operates over the output voltage error.Robustness is analyzed in depth taking into account the parameter variation related with the operation of the converter in different equilibrium points. Simulations and experimental results are presented to validate the approach for a 20–100-W boost converter stepping-up a low dc voltage (15–25-V dc) to a 400-V dc level.
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