• 512 Citations
  • 10 h-Index
1991 …2019
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Research Output 1991 2019

  • 512 Citations
  • 10 h-Index
  • 59 Article
  • 22 Conference contribution
  • 1 Review article
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Article
2018
2 Citations (Scopus)

Influence of design methods a discrete model of separately excited DC motor on parameters estimation

Vajda, I., Glazyrin, A., Ustinova, I. & Bolovin, E., Jan 1 2018, In : Acta Polytechnica Hungarica. 15, 6, p. 219-233 15 p.

Research output: Contribution to journalArticle

DC motors
Parameter estimation
Difference equations
Electric drives
Linear equations
2017
3 Citations (Scopus)

Gearless micro hydropower plant for small water-course

Dementyev, Y., Kuzmin, R., Serikov, A., Suzdorf, V., Negodin, K. & Vajda, I., Jan 1 2017, In : Acta Polytechnica Hungarica. 14, 4, p. 155-166 12 p.

Research output: Contribution to journalArticle

Water
Axial flow
Electric arcs
Electric power systems
Turbines
2 Citations (Scopus)

Limiting static and dynamic characteristics of an induction motor under frequency vector control

Vajda, I., Dementyev, Y. N., Negodin, K. N., Kojain, N. V., Udut, L. S. & Chesnokova, I. A., Jan 1 2017, In : Acta Polytechnica Hungarica. 14, 6, p. 7-27 21 p.

Research output: Contribution to journalArticle

Induction motors
Electric potential
Frequency converters
Electric drives
Angular velocity
2016
3 Citations (Scopus)

Cogging torque reduction by magnet pole pairing technique

Jagasics, S. & Vajda, I., 2016, In : Acta Polytechnica Hungarica. 13, 4, p. 107-120 14 p.

Research output: Contribution to journalArticle

Magnets
Poles
Torque
Permanent magnets
2014
1 Citation (Scopus)

Investigation of a Quasi-Diamagnetic Machine Based on High-Temperature Superconductor-Based Rotor

Racz, A., Hadur, A. & Vajda, I., 2014, In : Journal of Superconductivity and Novel Magnetism. 28, 2, p. 663-665 3 p.

Research output: Contribution to journalArticle

High temperature superconductors
high temperature superconductors
rotors
Poles
Rotors
1 Citation (Scopus)

Numerical evaluation of a novel high-temperature superconductor-based quasi-diamagnetic motor

Racz, A. & Vajda, I., 2014, In : Journal of Physics: Conference Series. 507, PART 4, 042034.

Research output: Contribution to journalArticle

high temperature superconductors
evaluation
electric power
economics
engineering
2011
10 Citations (Scopus)

Novel 3-phase self-limiting transformer with magnetic flux applied by perfect closed YBCO wire loops

Kosa, J. & Vajda, I., Jun 2011, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1388-1392 5 p., 5643155.

Research output: Contribution to journalArticle

Magnetic flux
transformers
magnetic flux
coils
wire
2 Citations (Scopus)

Novel self-limiting transformer with active magnetic short circuit using perfect YBCO wire loops

Kosa, J., Vajda, I. & Kovacs, L., Jun 2011, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1417-1421 5 p., 5699371.

Research output: Contribution to journalArticle

short circuits
transformers
Short circuit currents
wire
Wire
1 Citation (Scopus)

Oscillation control over light duty cars using magnetic semi-active shock absorbers

Zador, I., Török, Á., Vajda, I. & Palkovics, L., Sep 1 2011, In : Transport. 26, 3, p. 284-289 6 p.

Research output: Contribution to journalArticle

Vehicle suspensions
Shock absorbers
Software design
Security systems
Railroad cars
3 Citations (Scopus)

Slimformer - Self-limiting transformer pre-prototype and pilot plant design, construction, and tests

Vajda, I., Hyde, A., Gyore, A., Nador, G., Trollier, T., Sailer, B. & Bohm, R., Jun 2011, In : IEEE Transactions on Applied Superconductivity. 21, 3 PART 2, p. 1298-1302 5 p., 5721755.

Research output: Contribution to journalArticle

plant design
pilot plants
Pilot plants
transformers
High temperature superconductors
2010
10 Citations (Scopus)

Application possibilities with continuous YBCO loops made of HTS wire

Kosa, J., Vajda, I. & Gyore, A., 2010, In : Journal of Physics: Conference Series. 234, PART 3, 032030.

Research output: Contribution to journalArticle

wire
transformers
twisting
tapes
alternating current
2009
2 Citations (Scopus)

Experimental determination of optimal construction of current limiting transformers using HTS tapes and rings

Gyore, A., Vajda, I., Meerovich, V. & Sokolovsky, V., Jun 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 1976-1980 5 p., 5109534.

Research output: Contribution to journalArticle

Fault current limiters
transformers
Short circuit currents
Tapes
tapes
10 Citations (Scopus)

Losses in superconductors under Non-Sinusoidal currents and magnetic fields

Sokolovsky, V., Meerovich, V., Spektor, M., Levin, G. A. & Vajda, I., Jun 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 3344-3347 4 p., 5153272.

Research output: Contribution to journalArticle

Superconducting materials
Magnetic fields
harmonics
alternating current
magnetic fields
5 Citations (Scopus)

Multiphysical finite element modeling of inductive type fault current limiters and self limiting transformers

Tihanyi, V., Gyore, A. & Vajda, I., Jun 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 1922-1925 4 p., 5067180.

Research output: Contribution to journalArticle

Fault current limiters
transformers
two dimensional models
inhomogeneity
flux density
9 Citations (Scopus)

Qualification of the machining and fitting precision of YBCO bulks and rings joined together via the examination of the trapped flux

Kosa, J., Vajda, I. & Farkas, L., Jun 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 2183-2185 3 p., 5067132.

Research output: Contribution to journalArticle

qualifications
machining
Machining
examination
Fluxes
11 Citations (Scopus)

Transformation of the DC and AC magnetic field with novel application of the YBCO HTS ring

Kosa, J. & Vajda, I., Jun 2009, In : IEEE Transactions on Applied Superconductivity. 19, 3, p. 2186-2189 4 p., 5109535.

Research output: Contribution to journalArticle

alternating current
direct current
Magnetic fields
rings
Iron
2008
3 Citations (Scopus)

Magnetization of YBCO bulks with permanent magnets and hybrid magnetizer

János, K., Vajda, I. & Prikhna, T., May 2008, In : Journal of Optoelectronics and Advanced Materials. 10, 5, p. 1005-1010 6 p.

Research output: Contribution to journalArticle

Magnetic circuits
permanent magnets
Permanent magnets
Poles
Magnetization
3 Citations (Scopus)

Oxygenation of bulk and thin-walled MT-YBCO under controllable oxygen pressure

Prikhna, T. A., Chaud, X., Gawalek, W., Joulain, A., Savchuk, Y. M., Sergienko, N. V., Moshchil, V. E., Habisreuther, T., Rabier, J., Dub, S. N., Melnikov, V. S., Litzkendorf, D., Nagorny, P. A., Bierlich, J., Sverdun, V. B., Vajda, I. & Kósa, J., Feb 1 2008, In : Journal of Physics: Conference Series. 97, 1, 012023.

Research output: Contribution to journalArticle

oxygenation
critical current
oxygen
microcracks
crystal defects
2007
5 Citations (Scopus)

Comparison of a self-limiting transformer and a transformer type FCL with HTS elements

Sokolovsky, V., Meerovich, V. & Vajda, I., Jun 2007, In : IEEE Transactions on Applied Superconductivity. 17, 2, p. 1911-1914 4 p.

Research output: Contribution to journalArticle

transformers
Superconducting fault current limiters
Magnetic couplings
Power transformers
Limiters
14 Citations (Scopus)

Environmentally friendly machining of ceramic based YBCO bulk superconductor

Kósa, J. & Vajda, I., Jan 1 2007, In : Journal of Materials Processing Technology. 181, 1-3 SPEC. ISS., p. 48-51 4 p.

Research output: Contribution to journalArticle

Brittleness
Superconducting materials
Machining
Hardness
6 Citations (Scopus)

Experimental analysis of different type HTS rings in Fault Current Limiter

Gyore, A., Semperger, S., Tihanyi, V., Vajda, I., Gonal, M. R., Muthe, K. P., Kashyap, S. C. & Pandya, D. K., Jun 2007, In : IEEE Transactions on Applied Superconductivity. 17, 2, p. 1899-1902 4 p.

Research output: Contribution to journalArticle

Fault current limiters
Superconducting fault current limiters
Magnetic cores
magnetic cores
rings
2 Citations (Scopus)

Influence of some metallic additives on the flux trapping ability of high temperature superconducting ceramics

Szalay, A., Horvath, D., Vajda, I., Mamalis, A. G. & Harnois, C., Jan 1 2007, In : Journal of Materials Processing Technology. 181, 1-3 SPEC. ISS., p. 36-39 4 p.

Research output: Contribution to journalArticle

Flux pinning
Magnetization
Superconducting magnets
Magnetic fields
Permanent magnets
9 Citations (Scopus)

Investigation of high temperature superconducting self-limiting transformer with YBCO cylinder

Vajda, I., Gyore, A., Semperger, S., Baker, A. E., Chong, E. F. H., Mumford, F. J., Meerovich, V. & Sokolovsky, V., Jun 2007, In : IEEE Transactions on Applied Superconductivity. 17, 2, p. 1887-1890 4 p.

Research output: Contribution to journalArticle

transformers
Superconducting cables
Copper
Fault current limiters
Short circuit currents
5 Citations (Scopus)

Transient stability of a power system with superconducting fault current limiters

Sokolovsky, V., Meerovich, V., Györe, A. & Vajda, I., 2007, In : Periodica Polytechnica, Electrical Engineering. 51, 1-2, p. 3-9 7 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Fault current limiters
Electric machinery
Limiters
Electrodynamics
2006
126 Citations (Scopus)

Provably Secure On-Demand Source Routing in Mobile Ad Hoc Networks

Ács, G., Buttyán, L. & Vajda, I., 2006, In : IEEE Transactions on Mobile Computing. 5, 11, p. 1533-1546 14 p.

Research output: Contribution to journalArticle

Mobile ad hoc networks
Routing protocols
Network protocols
Ad hoc networks
Defects
1 Citation (Scopus)

System investigation of high temperature superconducting self-limiting transformer

Györe, A., Péter, G. & Vajda, I., Jun 1 2006, In : Journal of Physics: Conference Series. 43, 1, p. 966-970 5 p., 236.

Research output: Contribution to journalArticle

transformers
limbs
short circuit currents
electric power
iron
2005
19 Citations (Scopus)

Improvement of functionality and reliability by inductive HTS Fault Current Limiter units

Gyore, A., Semperger, S., Farkas, L. & Vajda, I., Jun 2005, In : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 2086-2089 4 p.

Research output: Contribution to journalArticle

Fault current limiters
transformers
Magnetic cores
magnetic cores
Superconducting fault current limiters
12 Citations (Scopus)

Losses of flywheel energy storages and joint operation with solar cells

Kohari, Z. & Vajda, I., Apr 10 2005, In : Journal of Materials Processing Technology. 161, 1-2 SPEC. ISS., p. 62-65 4 p.

Research output: Contribution to journalArticle

Flywheels
Bearings (structural)
Energy storage
Solar cells
High temperature superconductors
3 Citations (Scopus)

Loss evaluation and simulation of superconducting magnetic bearings

Kohari, Z., Tihanyi, V. & Vajda, I., Jun 2005, In : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 2328-2331 4 p.

Research output: Contribution to journalArticle

magnetic bearings
Magnetic bearings
Bearings (structural)
Superconducting materials
evaluation
4 Citations (Scopus)

Series and parallel connections of inductive high-temperature superconducting fault current limiters

Györe, A., Farkas, L. & Vajda, I., Feb 2005, In : Superconductor Science and Technology. 18, 2

Research output: Contribution to journalArticle

Superconducting fault current limiters
topology
Topology
impedance
Electric fault currents
5 Citations (Scopus)
Ceramic superconductors
Fault current limiters
Magnetic properties
Electric properties
Thermodynamic properties
2 Citations (Scopus)
Bearings (structural)
magnetic bearings
Magnetic bearings
Poles
poles
4 Citations (Scopus)

Switches based on high-temperature superconducting thin films

Meerovich, V., Sokolovsky, V. & Vajda, I., Jun 2005, In : IEEE Transactions on Applied Superconductivity. 15, 2 PART II, p. 2047-2050 4 p.

Research output: Contribution to journalArticle

Superconducting films
switches
Switches
thin films
Temperature
2 Citations (Scopus)

YBCO bulks for preparation of permanent magnets

Szalay, A., Bertalan, G., Vajda, I., Kósa, J. & Enisz, M., 2005, In : Journal of the European Ceramic Society. 25, 12 SPEC. ISS., p. 2931-2934 4 p.

Research output: Contribution to journalArticle

Permanent magnets
High temperature superconductors
Chemical analysis
Liquid phase sintering
Pulse generators
2004
58 Citations (Scopus)

Superconducting FCL: Design and application

Sokolovsky, V., Meerovich, V., Vajda, I. & Beilin, V., Sep 2004, In : IEEE Transactions on Applied Superconductivity. 14, 3, p. 1890-1900 11 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Fault current limiters
Electric machinery
Electric fault currents
dynamic stability
2003
Superconductivity
Power Plant
power plants
Power plants
superconductivity
6 Citations (Scopus)

Applications of an HTS thin film switching element in the inductive current limiter

Sokolovsky, V., Meerovich, V., Beilin, V. & Vajda, I., Apr 15 2003, In : Physica C: Superconductivity and its Applications. 386, p. 480-484 5 p.

Research output: Contribution to journalArticle

switching circuits
Limiters
Fault current limiters
Thin films
coils
1 Citation (Scopus)

Effect of explosive compaction on microstructure and the physical properties of ceramic superconducting materials produced by different techniques

Kotsis, I., Enisz, M., Szalay, A., Vajda, I. & Mamalis, A. G., 2003, In : Materials Science Forum. 414-415, p. 121-126 6 p.

Research output: Contribution to journalArticle

Ceramic materials
Superconducting materials
Compaction
Physical properties
physical properties
11 Citations (Scopus)

Improved design and system approach of a three phase inductive HTS fault current limiter for a 12 kVA synchronous generator

Vajda, I., Györe, A., Szalay, A., Sokolovsky, V. & Gawalek, W., Jun 2003, In : IEEE Transactions on Applied Superconductivity. 13, 2 II, p. 2000-2003 4 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Synchronous generators
generators
Temperature
Fault current limiters
10 Citations (Scopus)

Investigation of joint operation of a superconducting kinetic energy storage (flywheel) and solar cells

Vajda, I., Kohari, Z., Benko, L., Meerovich, V. & Gawalek, W., Jun 2003, In : IEEE Transactions on Applied Superconductivity. 13, 2 II, p. 2169-2172 4 p.

Research output: Contribution to journalArticle

flywheels
Flywheels
energy storage
Kinetic energy
Energy storage
2002
4 Citations (Scopus)

Behavior of an inhomogeneous HTS film in the regime of a resistive current limiter

Sokolovsky, V., Meerovich, V., Gladstein, M. & Vajda, I., Aug 2002, In : Physica C: Superconductivity and its Applications. 372-376, PART 3, p. 1649-1652 4 p.

Research output: Contribution to journalArticle

Superconducting films
Limiters
superconducting films
Aluminum Oxide
sapphire
5 Citations (Scopus)

Operational characteristics of energy storage high temperature superconducting flywheels considering time dependent processes

Vajda, I., Kohari, Z., Porjesz, T., Benko, L., Meerovich, V., Sokolovsky & Gawalek, W., Aug 2002, In : Physica C: Superconductivity and its Applications. 372-376, PART 3, p. 1500-1505 6 p.

Research output: Contribution to journalArticle

flywheels
Flywheels
energy storage
Energy storage
Bearings (structural)
2001
7 Citations (Scopus)

AC loss problem in high-Tc bulk superconductors

Meerovich, V., Sokolovsky, V., Goren, S. & Vajda, I., May 2001, In : Physica C: Superconductivity and its Applications. 354, 1-4, p. 260-264 5 p.

Research output: Contribution to journalArticle

High temperature superconductors
Superconducting materials
alternating current
high temperature superconductors
Current voltage characteristics
3 Citations (Scopus)

Duration tests of an experimental high temperature superconducting fault current limiter

Vajda, I., Györe, A., Porjesz, T., Sokolovsky, V. & Meerovich, V., 2001, In : International Journal of Applied Electromagnetics and Mechanics. 14, 1-4 SPEC., p. 121-126 6 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Fault current limiters
Temperature
power plants
Power plants

Problem solving support by the multi-layer hypermedia model

Farkas, L. & Vajda, I., 2001, In : Periodica Polytechnica, Electrical Engineering. 45, 3-4, p. 253-264 12 p.

Research output: Contribution to journalArticle

HTML
Hypermedia systems
1 Citation (Scopus)

Self-oscillations in electric circuits with high-temperature superconductors

Meerovich, V., Sokolovsky, V. & Vajda, I., 2001, In : International Journal of Applied Electromagnetics and Mechanics. 14, 1-4 SPEC., p. 89-94 6 p.

Research output: Contribution to journalArticle

self oscillation
High temperature superconductors
high temperature superconductors
Superconducting materials
Networks (circuits)
5 Citations (Scopus)

Study of the quench conditions in superconducting current limiters

Sokolovsky, V., Meerovich, V., Goren, S. & Vajda, I., Mar 2001, In : IEEE Transactions on Applied Superconductivity. 11, 1 II, p. 2110-2113 4 p.

Research output: Contribution to journalArticle

Limiters
Superconducting materials
Networks (circuits)
High temperature superconductors
Creep
2 Citations (Scopus)

Testing the operation of high TC superconducting fault current limiter in a real system

Semperger, S. & Vajda, I., 2001, In : Periodica Polytechnica, Electrical Engineering. 45, 3-4, p. 265-276 12 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Testing
Temperature
15 Citations (Scopus)

Three phase inductive HTS fault current limiter for the protection of a 12 kVA synchronous generator

Vajda, I., Semperger, S., Porjesz, T., Szalay, A., Meerovich, V., Sokolovsky, V. & Gawalek, W., Mar 2001, In : IEEE Transactions on Applied Superconductivity. 11, 1 II, p. 2515-2518 4 p.

Research output: Contribution to journalArticle

Superconducting fault current limiters
Synchronous generators
generators
Fault current limiters
Electric potential
2000
12 Citations (Scopus)

Upgrading electric power quality by superconducting flywheels

Vajda, I., Porjesz, T., Györe, A., Szalay, A. & Gawalek, W., Nov 2000, In : Physica C: Superconductivity and its Applications. 341-348

Research output: Contribution to journalArticle

flywheels
Flywheels
upgrading
Power quality
electric power