Abstract
Multichannel resonant DC/DC converters have recently been popular in diverse fields, where multiple output voltage levels are required, such as supplying multilevel inverters. This paper is devoted to present the new member of a four-channel resonant DC/DC converter family, having consisted till now of step down as well as step-up/down configurations. The new converter is capable of realizing the power flow amongst the two input and the four output channels in order to maintain the required equal or unequal output voltages. In the meanwhile, it offers the benefits of soft-switching capability, including zero voltage (ZVS) and zero current switching (ZCS), resulting in high efficiency and reduced electromagnetic interference (EMI). The presentation of the new boost converter topology is followed by a detailed steady-state analysis. The focus is on the symmetrical operation of the converter in discontinuous current conduction mode (DCM). Possible sets of control variables are revealed and their effect on the operation, especially on the output voltages and powers is analyzed in detail. A step-by-step calculation procedure is also proposed to determine the circuit parameters. The outcomes of simulations and experiments validate the theoretical results.
Highlights
M ULTILEVEL DC/DC converters constitute a significantly developing area of power electronics
It offers the benefits of soft-switching capability, including zero voltage (ZVS) and zero current switching (ZCS) resulting in
The behavior of the converter will be investigated taking into consideration the effect of control variables on the output voltages in steady-state discontinuous conduction mode (DCM)
Summary
M ULTILEVEL DC/DC converters constitute a significantly developing area of power electronics. In paper [12], a new multi-output DC/DC converter with a high step-up conversion ratio was proposed for sustainable energy applications. New resonant modular multilevel topologies are being developed to provide reliable DC/DC voltage conversion while achieving high performance and efficiency. They often generate a large peak current, allow only limited power flow control, and have a tight voltage variation range. The converter is capable of steering the power flow amongst the two input and the four output channels while maintaining the required output voltages In the it offers the benefits of soft-switching capability, including zero voltage (ZVS) and zero current switching (ZCS) resulting in. The conclusions can be found at the end of the paper
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