Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Raimo Juntunen"'
Autor:
Elvira Baygildina, Liudmila Smirnova, Kirill Murashko, Raimo Juntunen, Andrey Mityakov, Mikko Kuisma, Olli Pyrhönen, Pasi Peltoniemi, Katja Hynynen, Vladimir Mityakov, Sergey Sapozhnikov
Publikováno v:
Energies, Vol 9, Iss 6, p 456 (2016)
This paper proposes and investigates the application of the gradient heat flux sensor (GHFS) for measuring the local heat flux in power electronics. Thanks to its thinness, the sensor can be placed between the semiconductor module and the heat sink.
Externí odkaz:
https://doaj.org/article/42ddb71b0c514c86a980a11c4d14b8d3
Publikováno v:
2020 22nd European Conference on Power Electronics and Applications (EPE'20 ECCE Europe).
The use of electric vehicles and inverter-controlled ventilation will increase in the future in underground mines. DC microgrids are analyzed during the last years to be used e.g. in solar and wind farms, ships and datacenters. The possibility to use
Publikováno v:
Keski-Koukkari, A, Rekola, J, Kulmala, A, Juntunen, R, Mäki, K & Valtee, M 2020, Methodology to Analyze Effect of Electric Mining Machines on the Mine Grid . in Proceedings of the 2020 IEEE Transportation Electrification Conference and Expo, ITEC . IEEE Institute of Electrical and Electronic Engineers, pp. 852-857, 2020 IEEE Transportation Electrification Conference & Expo, ITEC 2020, Chicago, Illinois, United States, 23/06/20 . https://doi.org/10.1109/ITEC48692.2020.9161640
Increasing use of electric driven mining machines change the planning principles for mine electric grid. This study aims to define general principles on how to determine on which terms electric machines can be added to an existing mine grid and how t
Publikováno v:
IEEE Transactions on Power Electronics. 31:1479-1488
Laminated busbar systems are commonly used in power electronic converters because of their low stray inductance. While the electromagnetic analysis of a busbar system is widely presented in the literature, there is a lack of accurate thermal modeling
Publikováno v:
IEEE Transactions on Power Electronics. 30:7138-7148
In this paper, a variable-frequency modulation method for a dual active bridge converter is introduced. The proposed method ensures zero-voltage switching over a wide power range with a minimal circulating current. Unlike previously presented modulat
Publikováno v:
IEEE Transactions on Applied Superconductivity. 25:1-8
Autor:
Pasi Peltoniemi, Elvira Baygildina, Andrey V. Mityakov, Vladimir Mityakov, Katja Hynynen, Sergey Z. Sapozhnikov, Liudmila Smirnova, Olli Pyrhonen, Mikko Kuisma, Raimo Juntunen, Kirill Murashko
Publikováno v:
Energies, Vol 9, Iss 6, p 456 (2016)
Energies; Volume 9; Issue 6; Pages: 456
Energies; Volume 9; Issue 6; Pages: 456
This paper proposes and investigates the application of the gradient heat flux sensor (GHFS) for measuring the local heat flux in power electronics. Thanks to its thinness, the sensor can be placed between the semiconductor module and the heat sink.
Autor:
Juhamatti Korhonen, Raimo Juntunen, Olli Pyrhonen, Pertti Silventoinen, Tatu Musikka, Liudmila Smirnova
Publikováno v:
2015 IEEE Applied Power Electronics Conference and Exposition (APEC).
Modern high power grid inverters use usually LC-or LCL-filter at grid interface. Simpler L-filter does not prove sufficient harmonic attenuation without resulting in to very large and bulky filter components. Higher order filters realize better atten
Autor:
Mika Lohtander, Raimo Juntunen, L. Popova, Juha Pyrhonen, Juha Varis, Pertti Silventoinen, M. Polikarpova, Tatu Musikka, Olli Pyrhonen
Publikováno v:
Mechanika. 19
The rapid development of powerful generators for wind power plants leads producers of power converters search ways to maximize the nominal power and availability of their converter units. The cooling solutions of a medium voltage converter with rated
Autor:
L. Popova, Kari Maula, Raimo Juntunen, Juha Pyrhonen, Mika Lohtander, Pertti Silventoinen, Tatu Musikka, Olli Pyrhonen
Publikováno v:
2013 15th European Conference on Power Electronics and Applications (EPE).
The dynamic IGBT model is characterized with a circuit simulator characterization tool by utilizing datasheet information and after that the model is tuned by using data from experimental measurements. The circuit simulator simulation results from bo