Improvement of the modified opposition method used for accurate switching energy estimation of WBG transistors

Sathler, Hans Hoffmann; Cougo, Bernardo

doi:10.1109/wipda.2017.8170565

Cited by 4 publications

(2 citation statements)

References 6 publications

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“…The manufacturer does not clearly state the conditions under which the double pulse test was performed, the measuring equipment used, and the inductance of the switching loop are not reported. Some researchers have published recent works reporting big differences between the energy curves available in the datasheet and experimental curves verified in real prototypes [19][20][21].…”

Section: Thermal Designmentioning

confidence: 99%

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Design of an Highly Efficient AC-DC-AC Three-Phase Converter Using SiC for UPS Applications

2018

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With the constant increase of energy consumption in the world, the efficiency of systems and equipment is becoming more important. Uninterruptible Power Supply (UPS) is an equipment that provides safe and reliable supply for critical load systems, that is, systems where a supply interruption can lead to economical or even human losses. The Double Conversion UPS is the most complete UPS class in terms of load protection, regulation, performance, and reliability, however, it has lower efficiency and higher cost because of its high number of power converters. Silicon Carbide devices are emerging as an opportunity to construct power converters with higher efficiency and higher power density. The main purpose of this work is to design a three-phase AC-DC-AC converter using Silicon Carbide for Double Conversion UPS applications. The aim is to maximize efficiency and minimize volume and mass. The methodologies to size and choose the main hardware components are described in detail. Experimental results obtained with the prototype prove the high efficiency and high power density achievable with Silicon Carbide Metal Oxide Semiconductor Field Effect Transistor (MOSFETs).

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Section: Thermal Designmentioning

confidence: 99%

“…Therefore, the core High Flux will be chosen for the rectifier and inverter inductors. 19 The number of turns used in the rectifier and inverter inductors will be 26 and 33, respectively. With this amount of turns it is possible to achieve the required inductance.…”

Section: Inductor Designmentioning

confidence: 99%