This paper presents a comparison of Isolated (Flyback) and non-Isolated (Buck) multiple input-single output (MISO) DC-DC converters. The analysis converters is based on pulsed voltage source cells (PVSC). modeling both converter types detailed through their mathematical models electrical simulations using Matlab/Simulink PSIM. focuses the sizing parameters, non-ideal characteristics efficiency....

This paper combines quasi-Z-source into a typical five-level inverter, which includes two dc voltage sources, two quasi-Z-sources and five switching devices. In this structure, the output voltage amplitude is not limited to dc voltage source and it can be increased by quasi-Z-source. Besides, due to nature of Z-source families, this new structure is reliable and higher efficiency. Also, in this...

This paper presents a hybrid cascaded H-bridge multilevel motor drive control scheme for electric/hybrid electric vehicles where each phase of a three-phase cascaded multilevel converter can be implemented using only a single DC source and capacitors for the other DC sources. Traditionally, each phase of a three-phase cascaded multilevel converter requires n DC sources for 2n + 1 output voltage...

Various ceramic materials have been successfully flash sintered via mostly direct current (DC) and some by alternative (AC). However, a comparison on the effects of different field types overall microstructure atomistic defect distribution in flash-sintered ceramics is still very limited. In this work, rutile TiO2 was chosen as model system to directly compare DC AC fields distribution. present...

Recent year’s renewable energy sources plays important role in power generation system. Due to intermittent nature of renewable sources such as wind and solar, the energy storage systems (ESS) are required in renewable power generating systems. This paper deals with power management of the ESS based on hydrogen storage (electrolyzer, hydrogen tank, fuel cell) and battery integrated in hybrid re...

Analytical expressions for the transmission coefficient and the resonance condition are derived for the first time for the asymmetrical rectangular double-barrier structures with deep well when a dc bias field is applied. It is found that the unity resonance of the resonant tunneling with unity transmission occurs when both the phase difference condition for resonance (PDCR) and the maximum con...

The DC-Link capacitor plays a crucial role as far power density and reliability are concerned: it occupies approximately 40% of the inverter, causes 30% its failures. Asymmetrical dual three-phase (ADTP) multiphase arrangements gaining relevance in automotive sector for powertrain applications. This work focuses on reducing impact that widely used double zero sequence injection (DZSI) family PW...

This article presents ac fault ride-through strategies for the “extended-overlap” operating mode of alternate arm converter (AAC), which is a type modular multilevel voltage source that has been proposed HVdc transmission applications. The AAC offers several benefits over half-bridge converter, such as requiring fewer submodules with smaller capacitance and providing dc capability. Novel symmet...