An Adaptability Hybrid-Frequency Interleaved Control Strategy for Double-Frequency Converters with Parameter Uncertainties
2023 3rd International Conference on Energy Engineering and Power Systems (EEPS)（2023）
Electric Power Research Institute of CSG Co.
Abstract
Double-Frequency converters offer fast response and lower cost but suffer from highly complex control strategies and lower power quality with parameter uncertainties. In this paper, an adaptability hybrid-frequency interleaved control strategy is proposed, which not only can simplify the high-frequency control loop but also improve the power quality performance under parameter uncertainties conditions. A totem pole based double-frequency AC/DC converter is selected as the case study, and the PLECS simulation platform is built. The results indicate that the proposed strategy can simplify the computation burden for high-frequency control loops and achieve over 30% THD performance reduction under parameter uncertainties conditions.
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Key words
Double Frequency Converters,Parameter Uncertainties,Adaptability,Hybrid-Frequency Interleaved Control Strategy
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