A High-Gain Multiphase Interleaved Differential Capacitor Clamped Boost Converter

Abstract

A step-up for a non-isolated interleaved differential capacitor clamped boost (IDCCB) DC–DC converter is proposed in this manuscript. Because of its ability to produce high voltage gains, it is used in high-power applications. This converter’s modelling and control design are applicable to any number of phases. A six-phase interleaved differential capacitor clamped boost prototype is tested in this work, with an input voltage of 60 V, an output voltage of 360 V, and a nominal output power of 2.2 kW. The components of the converter are placed and controlled in such a way that the output voltage is the sum of the two capacitor voltages and the input voltage, which is two times higher than the supply voltage when compared to a conventional interleaved differential dual-boost converter. This converter reduces the stress on the capacitor with reference to the conventional interleaved differential boost converter for the same conversion gain. This prototype is considered and the developed approach is applied, after which the experimental results are obtained. This converter has potential for application in areas such as renewable energy conversion and electric vehicles.

Analysis and Operation of a High DC-AC Gain 3-ϕ Capacitor Clamped Boost Inverter

“…Moreover, ZSI/qZSI's reliability is high because shoot-through is an integral part of the operation. The study of these converters has mainly focused on control techniques [3][4][5], applications [6], and PWM schemes [7,8].…”