Superconducting Devices for Power Engineering

Janowski, T.; Kondratowicz-Kucewicz, B.; Wojtasiewicz, G.; Kozak, S.; Kozak, J.; Majka, M.; Jaroszyński, L.

doi:10.12693/aphyspola.130.537

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Core losses Δ𝑃 𝑐𝑜𝑟𝑒 , depending on the square of the magnetic induction 𝐵, are similar for HTS transformers as well as for conventional ones. Figure 3 shows a general comparison of all the losses in conventional Figure 3(a) and HTS Figure 3(b) transformers [16], [20]. The total loss of a superconducting transformer is ultra-low compared to conventional transformers.…”

Section: Hts Transformers Lossesmentioning

confidence: 99%

Methodology for determining the parameters of high-temperature superconducting power transformers with current limiting function

Manusov

Ivanov²,

Semenov³

et al. 2023

IJECE

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<span lang="EN-US">This paper substantiates a new adaptive method for determining parameters of high-temperature superconducting power transformers with current limiting function. The main focus is the design of current-limiting superconducting windings in the light of new restrictions on current density, magnetic induction, critical current and critical temperature. The presented method considers the nature of alternating current (AC) losses in a superconductor under nominal operating conditions, features of the dielectric medium (liquid nitrogen), as well as the reduced values of the short-circuit voltage (0.5 to 1.5%). The main design features of high-temperature superconducting (HTS) transformers are specified, and a prototype of a three-phase HTS transformer of 63 kVA with a short-circuit current limiting function is developed. It is shown that HTS units have some advantages over conventional transformers: a 90 to 95% active losses reduction, short-circuit current limitation function, explosion and fire safety, a 60% reduction in weight and size, and increased efficiency (up to 99.8%). Experimental studies confirm that the short-circuit current limitation function is safe and efficient. It is demonstrated that during the short-circuit current limitation, significant heat flows occur on the windings, which should not exceed the critical value above which the superconductor could not return to the superconducting state by itself.</span>

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Section: Hts Transformers Lossesmentioning

confidence: 99%

Methodology for determining the parameters of high-temperature superconducting power transformers with current limiting function

Manusov

Ivanov²,

Semenov³

et al. 2023

IJECE

View full text Add to dashboard Cite

show abstract

“…However, even in most highly developed electrical power system, there are several difficulties related from production, transmission and distribution. Usually, power generation is located remote area from the storage center, and thus long transmission and distribution lines have to be constructed to maintain uninterrupted and quality electric power for home based and industrial economic activities [33]. Therefore, reliable, cheap, efficient conductor is required for transmission and distribution of electric power.…”

Section: Electric Powermentioning

confidence: 99%

Superperconductors, Their History and Applications

2019

APTA

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The phenomenon of zero resistance below certain low temperature (critical temperature) leads to limitless current which implies that no dissipation in electrical energy for this occurrence. This property is immediately followed by expulsion of magnetic field from the interior of a material if this material is placed in external magnetic while it is below this low temperature. Materials that have these unique properties when they are below their critical temperature are superconductor materials which were discovered in 1911 by famous Dutch physicist H. K. Onnes. In addition to the above mentioned properties, superconductors have many exceptional positive properties and thus have excellent potentials for applications in every sector. The main problem of these materials is their low temperature which needs refrigerator for their applications elsewhere which is too costly compared to conventional conductors. Even though having room temperature superconductors is still a dream, if it is achieved we can extract energy from these materials with very low cost. In this review history of superconductors, their type and some of their applications have been considered.

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“…In the first two decades of the 21st century, many publications were published, presenting research confirming the possibility of using superconductivity [1][2][3][4] and plasma technologies [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23] in the processes of energy production, processing and distribution [24][25][26][27][28], and in environmental protection processes whose main componentsair, water and soil-degrade year by year [29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Plasma and Superconductivity for the Sustainable Development of Energy and the Environment

2022

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The main aim of this review is to present the current state of the research and applications of superconductivity and plasma technologies in the field of energy and environmental protection. An additional goal is to attract the attention of specialists, university students and readers interested in the state of energy and the natural environment and in how to protect them and ensure their sustainable development. Modern energy systems and the natural environment do not develop in a sustainable manner, thus providing future generations with access to energy that is generated from renewable sources and that does not degrade the natural environment. Most of the energy technologies used today are based on non-renewable sources. Power contained in fuel is irretrievably lost, and the quality of the energy is lowered. It is accompanied by the emissions of fossil fuel combustion products into the atmosphere, which pollutes the natural environment. Environmental problems, such as the production of gaseous and solid pollutants and their emission into the atmosphere, climate change, ozone depletion and acid rains, are discussed. For the problem of air pollution, the effects of combustion products in the form of carbon oxides, sulfur and nitrogen compounds are analyzed. The plasma and superconductivity phenomena, as well as their most important parameters, properties and classifications, are reviewed. In the case of atmospheric pressure plasma generation, basic information about technological gas composition, pressure, discharge type, electromagnetic field specification, electrode geometry, voltage supply systems, etc., are presented. For the phenomenon of superconductivity, attention is mainly paid to the interdependencies between Tc, magnetic flux density Bc and current density Jc parameters. Plasma technologies and superconductivity can offer innovative and energy-saving solutions for power engineering and environmental problems through decreasing the effects of energy production, conversion and distribution for the environment and by reductions in power losses and counteracting energy quality degradation. This paper presents an overview of the application of technologies using plasma and superconductivity phenomena in power engineering and in environmental protection processes. This review of plasma technologies, related to reductions in greenhouse gas emissions and the transformation and valorization of industrial waste for applications in energy and environmental engineering, is carried out. In particular, the most plasma-based approaches for carbon oxides, sulfur and nitrogen compounds removal are discussed. The most common plasma reactors used in fuel reforming technologies, such as dielectric barrier discharge, microwave discharge and gliding-arc discharge, are described. The advantages of solid waste treatment using plasma arc techniques are introduced. Applications of superconductors for energy generation, conversion and transmission can be divided into two main groups with respect to the conducted current (DC and AC) and into three groups with respect to the employed property (zero resistivity, ideal magnetism/flux trapping and quench transition). Among the superconductivity applications of electrical machines, devices for improving energy quality and storage and high field generation are described. An example that combines the phenomena of hot plasma and superconductivity is thermonuclear fusion. It is a hope for solving the world’s energy problems and for creating a virtually inexhaustible, sustainable and waste-free source of energy for many future generations.

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Superconducting Devices for Power Engineering

Cited by 5 publications

References 11 publications

Methodology for determining the parameters of high-temperature superconducting power transformers with current limiting function

Methodology for determining the parameters of high-temperature superconducting power transformers with current limiting function

Superperconductors, Their History and Applications

Plasma and Superconductivity for the Sustainable Development of Energy and the Environment

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