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2019 5th International Conference on Advances in Electrical Engineering (ICAEE), 2019
There is an increasing interest within the industrial community to apply single-phase cycloconverters in variable speed drives and variable frequency applications. For variable speed drive application of cycloconverter to improve the power quality i.e., the harmonic components of the converter’s output voltage should be low which are always measured in
Ashish Mahanta, Shuvra Prokash Biswas
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There is an increasing interest within the industrial community to apply single-phase cycloconverters in variable speed drives and variable frequency applications. For variable speed drive application of cycloconverter to improve the power quality i.e., the harmonic components of the converter’s output voltage should be low which are always measured in
Ashish Mahanta, Shuvra Prokash Biswas
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Novel Zero-Sequence Blocking Transformer (ZSBT) Using Three Single-Phase Transformers
IEEE Transactions on Energy Conversion, 2013Zero-sequence blocking transformers (ZSBTs), used to block the zero-sequence components that are present in a three-phase system, are commonly built winding the three phases around the same core limb. They are difficult to construct, especially in high-power applications that use large cross-sectional cables, as they require a symmetrical winding ...
Aitor Laka +4 more
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Design and Simulation of a 120 kVA Single-Phase HTS Transformer
IEEE transactions on applied superconductivity, 2020In this paper, a 120 kVA single-phase HTS transformer operating in liquid nitrogen at 77 K with high/low voltages of 6000 V/400 V was designed and simulated in a 2-D axisymmetric model.
Wei Pi +4 more
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Inrush Current Modeling in a Single-Phase Transformer
IEEE Transactions on Magnetics, 2010This paper introduces a proper model for ferromagnetic core which includes hysteresis, saturation, eddy current losses, and anomalous losses. This model can generate symmetrical and asymmetrical loops with high accuracy. An artificial neural network is used to present the major dc hysteresis loop and initial magnetization curve based on a set of ...
Jawad Faiz, Saeed Saffari
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Control of Smart Transformer Under Single-Phase to Ground Fault Condition
IEEE transactions on power electronics, 2020In low voltage (LV) electric distribution grid, the continuity of power supply service is degraded by various grid faults. Even under single phase to ground faults, the continuous operation capability of healthy phases is also limited.
Rongwu Zhu, Marco Liserre
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Ferroresonance modes determination of single-phase toroidal transformers
2017 15th International Conference on Electrical Machines, Drives and Power Systems (ELMA), 2017The actual high incidence of the low-loss power transformers in the modern electric and electronic installations, increase the risk of the ferroresonance occurrence. This could be commonly triggered by a capacitive switching of the transformers. Consequently, significant overvoltages and overcurents are experienced by all the installation components ...
Emil Cazacu +2 more
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A Soft-Switching Single-Phase Transformer-Isolated Inverter
2018 5th International Conference on Electric Power and Energy Conversion Systems (EPECS), 2018This paper proposed a soft-switching single-phase transformer-isolation inverter with a transformer-isolated soft-switching dc link. The transformer-isolated soft-switching dc link provides electrical isolation function and soft-switching function on main power switches in inverter.
Chien-Ming Wang +3 more
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Harmonic analysis of ferroresonance in single-phase transformers
2012 IEEE 15th International Conference on Harmonics and Quality of Power, 2012Ferroresonance is a power quality problem that is characterized by distorted overvoltage and current waveforms. This paper reviews the ferroresonance problem associated with a circuit involving an unloaded transformer that is connected to a source through a capacitor, and solution methodologies. A common simplified method based on fundamental frequency
Xusheng Chen +2 more
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Initial transformer sizing for single-phase residential load
IEEE Transactions on Power Delivery, 1992The authors describe a method for determining the correct economic size of distribution transformers using end-use appliance load profiles and the ANSI/IEEE Standard C57.91-1981 thermal model. The method was developed to select the distribution transformer size required to serve single-phase residential loads.
K.C. Schneider, R.F. Hoad
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3-phase transformer used on single phase
14th International Conference Mechatronika, 2011This paper deals with the possibility of using three-phase transformer for single-phase power source and single-phase load. The first part of this work is focused on possible ways of utilizing three-phase transformer on single-phase power source and different ways how to load the transformer. Theoretical assumptions were verified by measurements.
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