Listar Kongresuak-Ingeniaritza por autor "ec82ce84c15a74f2ad593fae5ae7909d"
Mostrando ítems 1-8 de 8
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Analysis of non-uniform circumferential segmentation of magnets to reduce eddy-current losses in SPMSM machines
Madina, Patxi; Almandoz, Gaizka; Ugalde, Gaizka; Garcia Poza, Javier (IEEE, 2012)Eddy current losses generated in the rotor of the permanent magnet machines may lead to an excessive magnet heating. This can cause full demagnetization of the magnets so it is very important to analyze the losses on them ... -
Analytical model to calculate magnetic flux density in permanent magnet synchronous machines with static eccentricity
Gómez Serna, Iratxo; Almandoz, Gaizka; Zárate Barriga, Sergio; Poza, Javier; Ugalde, Gaizka (IEEE, 2016)In this article a general analytical model for the analysis of permanent magnet synchronous machines with static eccentricity is presented. The model is a continuation of [1] and it is based on Fourier time-space series ... -
Analytical model to calculate radial forces in permanent-magnet synchronous machines
Gómez Serna, Iratxo; Almandoz, Gaizka; Poza, Javier; Ugalde, Gaizka (IEEE, 2014)In permanent-magnet synchronous machines (PMSMs) electromagnetic forces are identified as the principal source of vibrations and noises. In this article, first of all the sources of magnetic forces in PMSMs are analyzed. ... -
Automatic detection test of current sensor faults for induction motor drives at standstill
del-Olmo, Jon; Poza, Javier; Ugalde, Gaizka (IEEE, 2016)This paper proposes an automatic detection test of gain faults in current sensors. An offline test is applied when the machine is not operating. The designed test operates at standstill without being necessary to disconnect ... -
High-Frequency Modelling of Windings
Moreno, Yerai; Egea, Aritz; Almandoz, Gaizka; Ugalde, Gaizka (IEEE, 2022)Electrical drives consume a great amount of the world’s energy, and this will keep increasing due to the electromobility trend. Hence, the efficiency of electrical drives must be improved to reach sustainability. Silicon ... -
Magnet eddy current loss calculation method for segmentation analysis on permanent magnet machines
Madina, Patxi; Poza, Javier; Almandoz, Gaizka; Ugalde, Gaizka (IEEE, 2011)Eddy current losses generated in the rotor of permanent magnet machines may lead to an excessive magnet heating. This can cause the magnets to get fully demagnetized so it is very important to analyze the losses on them. ... -
Methodology to Study Demagnetization Risk in Permanent Magnet Machines by Finite Element Method
Gómez Serna, Iratxo; Almandoz, Gaizka; Ugalde, Gaizka; Poza, Javier (IEEE, 2017)Nowadays the majority of applications are demanding more and more compact, cost effective and robust solutions for their electric drives. In this context permanent magnet synchronous machines are considered as a good ... -
Radial fan simulations by computational fluid dynamics and experimental validation
San Andrés Sanz, Unai; Almandoz, Gaizka; Poza, Javier; Ugalde, Gaizka (IEEE, 2014)Fans are commonly used to refrigerate electrical machines when air forced cooling is required. They are rather simple solutions that can considerably improve the thermal performance of electrical machines, so the fan ...