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Global warming is already having significant and costly effects on our communities, our health, and our climate. Nowadays, In developing countries (G20) around the world, decisions are being considered and a shifting of our dependence from fossil fuels to renewable energy sources (RES). Among RES solar energy, specially photovoltaic system (PV) play a key role in this challenge, thus, this paper provides...
A 6.5 kV 25 A dual IGBT module is customized and packaged specially for high voltage low current application like solid state transformer and its characteristics and losses have been tested under the low current operation and compared with 10 kV SiC MOSFET. Based on the test results, the switching losses under different frequencies in a 20 kVA Solid-State Transformer (SST) has been calculated for...
This paper presents a high efficiency 10 kVA high-frequency input and output Si IGBT and SiC Schottky diode 3-level neutral point clamped voltage dc-link back-to-back converter (3LNPC-VLBBC). A switching frequency of 48 kHz makes the converter suitable for driving high-speed and low-inductive machines. A detailed loss analysis reveals that only four of the six diodes in a 3-level bridge-leg have to...
It is important to understand the properties of SiC MOSFETs that should be optimized to enhance the performance of advanced power. In this paper, the authors quantify the impact of the specific on-resistance and switching loss on determining the device current rating of SiC MOSFETs. This analysis is based on DC and transient characterization of GE 1200 V SiC MOSFETs with specific on-resistance of...
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