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.
Highlights
New challenges in energy conversion technology are being faced due to the increased use of renewable energy sources. One such challenge is that several types of devices that store or produce electrical energy, such as ultra-capacitors, solar panels, batteries, and fuel cells, are manufactured using low-voltage cells, which must be series-connected to attain reasonable voltages [1–3]
The notable variations in the output voltages of this kind of electrical energy source depend on factors such as the state of charge, the output current, and the solar radiation [4]
A step-up converter is used to increase the voltage of the source based on the requirements of the application and to produce a stable output voltage, even if variations exist in the voltages of the source [5–8]
Summary
New challenges in energy conversion technology are being faced due to the increased use of renewable energy sources One such challenge is that several types of devices that store or produce electrical energy, such as ultra-capacitors, solar panels, batteries, and fuel cells, are manufactured using low-voltage cells, which must be series-connected to attain reasonable voltages [1–3]. In such cases, the complexity of the system is increased due to the series connection of a large number of cells, which reduces the performance due to the differences among the cells, such as fabrication variations and other various working conditions. Tsohobwettheartetshtiismmaotedethl ies sdyisttienmct fbreohmavthioe ucor,ntvheentrieodnualciendte-rolredaveerdmboodosetl misoudseel.dT. o better estimate the system behaviour, the reduced-order model is used
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