Results 251 to 260 of about 1,675,720 (296)

A sensor to detect the DC bias of distribution power transformers

8th IEEE Symposium on Diagnostics for Electrical Machines, Power Electronics & Drives, 2011
The widespread use of power converters in low-voltage distribution grids has given rise to issues regarding the power quality. In fact, non-linear loads such as AC Drives, switching-mode power supplies and grid-connected converters can cause, besides the generation of several current harmonics, also a DC current component injection into the grid.
G. Buticchi, LORENZANI, EMILIO
openaire   +2 more sources

DC bias suppression in diffraction patterns

Optics Communications, 1972
Abstract A Smith polarization interferometer is used for the suppression of the influence of the dc bias light level in optical diffraction patterns. Its application results in an improved detectability of low-frequency diffraction orders.
openaire   +1 more source

dc Bias-Sputtered Aluminum Films

Journal of Vacuum Science and Technology, 1973
Low resistivity aluminum films have been deposited by dc bias sputtering without excessive presputtering. Minimum resistivity occurs for a bias (VB) of approximately −40 V and, in contrast to the case for sputtered molybdenum, the resistivity increases for higher negative biases.
openaire   +1 more source

A new auto-bias method for digital control dc-dc converter

2011 International Conference on Electrical Machines and Systems, 2011
Main content of this paper is a new auto-bias method for digital control dc-dc converter. In the proposed method, not only the P-I-D control as the feedback one but also the new auto-bias method as the feedforward one is used. The new auto-bias method consists of two superior functions.
Fujio Kurokawa, Junya Sakemi, Akihiro Yamanishi, Hiroyuki Osuga   +3 more
openaire   +1 more source

DC Bias and DC Sweep Simulations

2021
Pooja Mohindru, Pankaj Mohindru
openaire   +1 more source

A Novel Control Method for Eliminating DC Bias in Dual-Active-Bridge DC-DC Converters

2018 IEEE International Power Electronics and Application Conference and Exposition (PEAC), 2018
This paper proposes a novel transient current control method for dual-active-bridge (DAB) dc-dc converters. When sudden load transients or reference change, the dc bias of inductor current will occur under the traditional control method, which may cause induce magnetic-flux saturation and excessive current spike in the loop.
Kai Li, Yue Wang, Jinghui Xu, Jianpeng Wang, Rui Li, Chunhui Lv   +5 more
openaire   +1 more source

Dual loop control for eliminating DC-bias in a DC-DC dual active bridge converter

2014 International Conference on Renewable Energy Research and Application (ICRERA), 2014
In bi-directional dual active bridge (DAB) converters, non-ideal behavior of the system components can lead to dc bias in the converter which results in magnetic saturation of the high frequency transformer. This paper proposes adding an extra control loop to overcome this problem.
Bhanu Prashant Baddipadiga, Mehdi Ferdowsi   +1 more
openaire   +1 more source

Design of dc-bias resilient transformers

Geomagnetic disturbances (GMDs) give rise to geomagnetically induced currents (GICs) on the earth’s surface which find their way into power systems via grounded transformer neutrals. The quasi-dc nature of the GICs results in half-cycle saturation of the power grid transformers which in turn results in transformer failure, life reduction, and other ...
openaire   +1 more source

Algorithmic Bias in Data-Driven Innovation in the Age of AI

International Journal of Information Management, 2021
Shahriar Akter, John D'Ambra, Grace McCarthy   +2 more
exaly  

Understanding and Managing the Threat of Common Method Bias: Detection, Prevention and Control

Tourism Management, 2021
Albert Assaf, Florian Kock, Adiyukh Berbekova   +2 more
exaly