Items where Author is "Valtchev, S"

Article

Pereira, P and Valtchev, S and Pina, J and Gonçalves, A and Neves, M Ventim and Rodrigues, A L (2008) Power electronics performance in cryogenic environment: evaluation for use in HTS power devices. Journal of Physics: Conference Series, 97, 012219. eISSN 1742-6596. URL: http://dx.doi.org/10.1088/1742-6596/97/1/012219. (ISI Web of Science, Citations: 1).

Pina, J and Pereira, P and Valtchev, S and Gonçalves, A and Neves, M Ventim and Alvarez, A and Rodrigues, L (2008) A test rig for thrust force measurements of an all HTS linear synchronous motor. Journal of Physics: Conference Series, 97, 012220. eISSN 1742-6596. URL: http://dx.doi.org/10.1088/1742-6596/97/1/012220. (ISI Web of Science, Citations: 5).

Conference or Workshop Item

Inácio, D and Inácio, J. A. and Pina, J. and Valtchev, S and Neves, M. and Martins, J. and Rodrigues, A. (2009) Conventional and HTS Disc motor with pole variation control. [Paper]. In: 2nd International Conference on Power Engineering, Energy and Electrical Drives (POWERENG'2009), 18-20 Mar 2009, Caparica. (ISI Web of Science).

Pereira, Pedro and Valtchev, S and Pina, João and Gonçalves, Anabela and Neves, Mário and Rodrigues, Amadeu (2007) Power Electronics Performance in Cryogenic Environment: Evaluation for Use in HTS Power Devices. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Inácio, S and Inácio, D and Pina, J. and Valtchev, S and Neves, M Ventim and Rodrigues, A. (2007) An Electrical Gearbox by means of pole variation for induction and superconducting disc motor. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Pina, João and Caracaleanu, C. and Gonçalves, A. and Pereira, Pedro and Valtchev, S and Neves, Mário and Rodrigues, A. (2007) High Performance, Environment Friendly, Modular and Fault Tolerant Renewable Energy Microgrid. [Paper]. In: 12th International Energy Conference & Exhibition (ENERGEX2007), 26-30 Nov 2007, Singapore.

Pina, João and Pereira, Pedro and Valtchev, S and Gonçalves, A. and Neves, Mário and Rodrigues, A. (2007) A test rig for thrust force measurements f an all HTS linear synchronous motor. [Paper]. In: 8th European Conference on Applied Superconductivity (EUCAS), 16-20 September 2007, Brussels, Belgium.

Valtchev, S and Borges, BV and Anunciada, V (1995) LkW/250 kHz full bridge zero voltage switched phase shift DC-DC converter with improved efficiency. [Paper]. In: 17th International Telecommunications Energy Conference, INTELEC '95, 29 Oct 1995-01 Nov 1995, The Hague, the Netherlands. URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb....