Abstract
AbstractThis paper presents active switched capacitor integrated ultra‐voltage gain quadratic boost converters (ASC‐QBC). The step‐up conversion ratio provided by quadratic boost converter is not ample to meet the renewable microsource applications. The active switched capacitor integrated quadratic boost converter is a propitious alternate to acquire high voltage conversion ratios. A simple diode‐capacitor voltage lift arrangement is used in one of the introduced converters, thereby further enhancing the voltage gain and also reducing the input current ripple to a greater extent. The voltage stress on semiconductor devices is greatly alleviated with the aid of diode‐capacitor voltage lift arrangement. The input current ripple aspects with green energy sources along with control feasibility of the proposed converters against input voltage and load perturbations are experimentally demonstrated for a power rating of 100 W. The theoretical analysis and performance indices of proposed converters are validated with a fabricated laboratory prototype.
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