基于LPV建模与鲁棒控制的CPT系统输出电压波动抑制方法

This paper investigates a LPV-based output voltage mitigation method for the capacitive wireless power transfer (CPT) system employing a series Buck converter under varying mutual capacitance conditions. A linear parameter varying (LPV) model is utilized to represent the dynamics of the Buck converter under input voltage fluctuations. Based on the estimated model, a robust controller is designed using the normalized coprime factorization (NCF) approach to ensure system stability and performance. Experimental results demonstrate the effectiveness of the proposed method. The system achieves rapid voltage regulation and maintains stable output voltage under various disturbance frequencies and load conditions. These findings validate the robustness and adaptability of the proposed control strategy, offering a reliable solution for enhancing the performance of CPT systems.