Zerrendatu Ikerketa-Kongresuak honen arabera: egilea "2b63532de106d722ef61c261eaa7a17f"
-
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 ... -
DC-link sensor Fault Detection and isolation for railway traction electric drives
del-Olmo, Jon; Poza, Javier; Garramiola, Fernando; Almandoz, Gaizka (IEEE, 2017)This article presents the design and the implementation of a fault detection and isolation strategy for sensors in variable speed drives. Electric drives use several current and voltage sensors for control and protection. ... -
Fast and Accurate Vibration Response Calculation Procedure for Permanent Magnet Synchronous Machines
Mendizabal, Mikel; McCloskey, Alex; Zárate Barriga, Sergio; Poza, Javier (IEEE, 2022)The vibration of the stator frame due to electromagnetic forces is one of the main noise and vibration sources of electric machines. In some applications, due to the wide variety of working conditions, design optimizations ... -
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 ... -
Model driven Hardware-in-the-Loop Fault analysis of railway traction systems
del-Olmo, Jon; Poza, Javier; Garramiola, Fernando (IEEE, 2017)Classical Dependability Analysis techniques, such as Failure Mode and Effects Analysis (FMEA) and Fault Tree Analysis, have been used during the last decades to demonstrate the reliability, availability, maintainability ... -
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 ... -
Thermal test procedure and analytical model calibration method for electrical machines
San Andrés Sanz, Unai; Almandoz, Gaizka; Poza, Javier (IEEE, 2013)In this paper a thermal test procedure and a calibration method for lumped parameter models are presented. Analytical models provide fast thermal simulations in comparison with finite element methods (FEM) and computed ...