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121 results on '"Bayne, Stephen B."'

22. Evaluation of GaN HEMTs in H 3 TRB Reliability Testing.

Author

Rodriguez, Jose A., Tsoi, Tsz, Graves, David, and Bayne, Stephen B.

Subjects
METAL oxide semiconductor field-effect transistors, ELECTRIC vehicle charging stations, GALLIUM nitride, TEST reliability, POWER resources, MODULATION-doped field-effect transistors
Abstract

Gallium Nitride (GaN) power devices can offer better switching performance and higher efficiency than Silicon Carbide (SiC) and Silicon (Si) devices in power electronics applications. GaN has extensively been incorporated in electric vehicle charging stations and power supplies, subjected to harsh environmental conditions. Many reliability studies evaluate GaN power devices through thermal stresses during current conduction or pulsing, with a few focusing on high blocking voltage and high humidity. This paper compares GaN-on-Si High-Electron-Mobility Transistors (HEMT) device characteristics under a High Humidity, High Temperature, Reverse Bias (H3TRB) Test. Twenty-one devices from three manufacturers were subjected to 85 °C and 85% relative humidity while blocking 80% of their voltage rating. Devices from two manufacturers utilize a cascade configuration with a silicon metal-oxide-semiconductor field-effect transistor (MOSFET), while the devices from the third manufacturer are lateral p-GaN HEMTs. Through characterization, three sample devices have exhibited degraded blocking voltage capability. The results of the H3TRB test and potential causes of the failure mode are discussed. [ABSTRACT FROM AUTHOR]

Published
2022
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34. Power Quality Analysis of a Wind Turbine Using Optimal Iteration Process

Author

ISLAM, Atiqul, NİMMAGADDA, Sandeep, BAYNE, Stephen B, and CABALLERO, Lourdes Garcia

Subjects
wind energy, renewable energy
Abstract

Power quality performance analysis of a wind turbine is necessary to properly characterize the turbine before proceeding to grid integration. The analysis requires following strict guidelines stated in available international standards. This paper discusses the available international standards for power quality analysis along with the procedures used for different parameter calculations. The principal object of the paper is to demonstrate the difference between non overlapping block mode and sliding mode iteration methods during parameter calculations. Results indicate that the non overlapping block mode method is a faster iteration process with a similar accuracy to the sliding mode method during wind turbine characterization. The paper showed power quality parameters calculated using the non overlapping block mode method and also discusses the effect of a high number of samples on the overall analysis result. High resolution recorded data from a grid connected wind turbine in West Texas is used for the analysis.

Published
2016

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