This work presents the experimental validation of a 40 kW electric vehicle (EV) charger. The proposed system comprises two 20 modules connected in parallel at input and output. Each module has stages—as grid converter Vienna Rectifier (VR) was chosen, as an isolated DC/DC stage, Series-Resonant Dual-Active-Bridges (SRDABs) input-series-output-parallel (ISOP) configurations were applied. AC/DC s...

This work aims to explore and evaluate the nonreversible AC/DC five-level structure from point of view its operational safety: high electrical security on internal destruction continuity in operation. It only has low-voltage monotransistor cells (Si SiC 600 V max) is intrinsically tolerant imperfection control parasites, therefore naturally secure. The design lab-test fault monitoring diagnosis...

The hybrid three-phase rectifiers (HTR) consist of parallel associations two (rectifier 1 and rectifier 2), each one them with a distinct operation, while the sum their input currents forms sinusoidal or multilevel waveform. In general, is GRAETZ (full bridge) (can be combined BOOST converter) 2 DC-DC converter. this HTR contest, paper intended to answer some important questions about those rec...

In this paper, a Switched Reluctance Motor (SRM) drive system is proposed to make trade-off between torque profile and vibration amplitude. the system, power factor correction fast demagnetization are achieved using single-phase Vienna rectifier as front-end converter for SRMs with nominal voltage equal half DC-link voltage. The three-level provides doubled negative in demagnetization, resultin...

Wide bandgap (WBG) semiconductors offer better switching and lower losses, it is not uncommon to utilize them for high power density, high-efficiency applications. Gallium nitride (GaN) Silicon carbide (SiC) are the most common WBG materials that responsible major level changes relative silicon (Si) devices. This paper explores contrast of performance between Si, SiC, GaN The output devices inc...

Two of the main challenges recent electric vehicles (EVs) are charging time and high initial cost. To solve problem associated with long time, car manufacturers moving from 400 V battery EV (BEV) to 800 BEV, which enables utilization multi-level converters in applications. This paper presents a power conversion system consisting Vienna rectifier two/three level hybrid inverter as machine-side d...

This paper investigates the dynamic behavior of Gas Metal Arc Welding (GMAW) process for two types of power supplies –inverter and rectifier- for short circuit transfer mode. The large ripples on the rectifier power source are able to perturb the metal transfer mode. In this experimental work some operating points in the short circuit mode have been selected using an automatic pipeline welding ...