Publications

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2012
High frequency wireless energy for improving the EV autonomy, Valtchev, Stanimir , International Symposium on Electric Vehicle and 4-th Annual Conference of Polish Society for Environment Friendly Vehicles, (2012) Abstract
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High frequency wireless energy for improving the EV autonomy, , International Symposium on Electric Vehicle and 4-th Annual Conference of Polish Society for Environment Friendly Vehicles, (2012) Abstract
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New method employing the electrical impedance for monitoring mechanical damage evolution in glass-reinforced: Applications to riveted joints, Matos Filipe, L., Santos T. G., Valtchev S., Pamies Teixeira J., and Miranda R. M. , Materials and Design, Volume 42, p.25-31, (2012) Abstract
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New Methodology for Structural Health Monitoring of GLARE in Ships, Valtchev, Stanimir , 15th International Conference on Experimental Mechanics (ICEM15), Porto, (2012) Abstract
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New Methodology for Structural Health Monitoring of GLARE in Ships, , 15th International Conference on Experimental Mechanics (ICEM15), Porto, (2012) Abstract
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R&D of an thermoelectric system - An innovative Linear Fresnel Reflector, Valtchev, Stanimir , MATCHMAKING RESEARCH Conference, (2012) Abstract
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Survey on EV electrical drive train with induction motor, Valtchev, Stanimir , International Symposium on Electric Vehicle and 4-th Annual Conference of Polish Society for Environment Friendly Vehicles, (2012) Abstract
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2011
Study of a single-phase series active power filter with hysteresis control, Antchev, Mihail Hr., Petkova Mariya P., Antchev Hristo M., Gourgoulitsov Vanjo T., and Valtchev Stanimir S. , 11th International Conference on Electrical Power Quality and Utilisation, oct, (2011) Abstract
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Actions for Broadening the Engineering Culture of the European Student with an Insight to the Future Needs of the Global (European) Labour Market, Valtchev, {Stanimir Stoyanov}, and DEE Group Author , Proceedings of the First International Conference of the European Polytechnical University, 1, p.78–82, (2011) Abstract
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Electromagnetic Field as Wireless Transporter of Energy, Valtchev, {Stanimir Stoyanov} , PES 2011: Proceedings of extended abstracts, 1, Volume NA, p.143–144, (2011) Abstract
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Energy Harvesting and the Human Health, Valtchev, {Stanimir Stoyanov}, and DEE Group Author , Proceedings of the First International Conference of the European Polytechnical University, 1, p.451–460, (2011) Abstract
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The Energy That's Around, Valtchev, {Stanimir Stoyanov} , Conference “Millennium Development Goals”, IEEE Student Branch, 21st March 2011, 1, p.–, (2011) Abstract
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High Level Education Through Research Training Networks: A Potential StrategyTo Build Knowledge In EV/HEV, Valtchev, {Stanimir Stoyanov}, Pamies-Teixeira {Jorge Joaquim}, and DEE Group Author , 1, Volume NA, (2011) Abstract
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Study on Contactless Power Transmission Methods, Valtchev, {Stanimir Stoyanov} , 1, Volume NA, (2011) Abstract
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An UHF Wireless Power Harvesting System - Analysis and Design, Valtchev, {Stanimir Stoyanov}, and DEE Group Author , PES 2011: Proceedings of extended abstracts, 1, p.141–142, (2011) Abstract

This paper presents a system to harvest electromagnetic energy from the environment. The proposed solution differs from others already existent in the literature because it makes possible to harvest energy from a large frequency spectrum. Typically the existing energy harvesting systems only gather energy from one specific source, thus not taking advantage of the several RF sources existing in one place. The full system and its componentsare simulated and implemented, and the results obtained are shown. The system harvest energy from UHF sources, and converts the harvested energy to a DC voltage, in order to feed electronic devices. This conversion is made through the utilization of a voltage multiplier, followed by a voltage regulator.

Actions for Broadening the Engineering Culture of the European Student with an Insight to the Future Needs of the Global (European) Labour Market, Valtchev, Stanimir , First Conference with International Participation {"}Education, Science, Innovations{"}, Pernik, Proceedings of ESIʹ2011, pp. 78-82, (2011) Abstract
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Actions for Broadening the Engineering Culture of the European Student with an Insight to the Future Needs of the Global (European) Labour Market, , First Conference with International Participation "Education, Science, Innovations", Pernik, Proceedings of ESIʹ2011, pp. 78-82, (2011) Abstract
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The Efficient and Stable Charging of Electric Vehicle Batteries: Simplified Instantaneous Regulation, Valtchev, Stanimir , International Symposium on Electric Vehicles ISEV2011, presentation 03084, Beijing, (2011) Abstract
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The Efficient and Stable Charging of Electric Vehicle Batteries: Simplified Instantaneous Regulation, Valtchev, {Stanimir Stoyanov}, and Neves-Medeiros Rui , (2011) Abstract
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Electromagnetic Field as Wireless Transporter of Energy, Valtchev, Stanimir , 10th International Conference on Applied Electromagnetics (\cyrchar\CYRP\cyrchar\CYRE\cyrchar\CYRS Conference), (2011) Abstract
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Energy Harvesting and the Human Health, Valtchev, Stanimir , First Conference with International Participation {"}Education, Science, Innovations{"} Proceedings of ESIʹ2011, pp. 451-460, (2011) Abstract
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The Energy That’s Around, Valtchev, Stanimir , {Conference “Millennium Development Goals”, (2011) Abstract
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High Level Education Through Research Training Networks: A Potential Strategy To Build Knowledge In EV/HEV, Valtchev, Stanimir , International Symposium on Electric Vehicles ISEV2011, keynote speech, Beijing, (2011) Abstract
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An instantaneous regulation for the wired and wireless super-resonant converters, Valtchev, S., Medeiros R., Valtchev S., and Klaassens B. , INTELEC, International Telecommunications Energy Conference (Proceedings), (2011) Abstract
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Medium concentration system HSUN: demonstration results and application of diverse silicon cells, Valtchev, Stanimir , 26th European Photovoltaic Solar Energy Conference and Exhibition (PVSEC), (2011) Abstract
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