Listar por autor "2b63532de106d722ef61c261eaa7a17f"
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A Requirement Engineering Framework for Electric Motors Development
Rivera, Christian A.; Poza, Javier; Ugalde, Gaizka; Almandoz, Gaizka (MDPI AG, 2018)The applications using electric motors have increased in the last decade. Some of these applications encounter the need for tailor-made motors that must meet demanding requirements. Therefore, the specification stage of ... -
Analysis of Multiphase Permanent Magnet Motors via Space-Harmonic Model
Arribas Imaz, Beñat; Almandoz, Gaizka; Egea, Aritz; Poza, Javier; Iturbe, Ion (IEEE, 2024)Multiphase permanent magnet motors are gaining popularity thanks to their advantages, which include reduced torque ripple, enhanced torque capability, and fault tolerance. However, their modelling and control is more ... -
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 ... -
Comparative Study on Torque Ripple Reduction Techniques for an Automotive Permanent Magnet Motor without Skew
Arribas Imaz, Beñat; Almandoz, Gaizka; Egea, Aritz; Poza, Javier; Ugalde, Gaizka; Garramiola, Fernando (IEEE, 2025)Permanent magnet motors are a good choice for Electric Vehicles (EV) due to their high power density and efficiency. Additionally, reducing torque ripple is important to ensure comfortable and silent vehicles. To achieve ... -
Data-Driven Fault Diagnosis for Electric Drives: A Review
Gonzalez-Jimenez, David; del-Olmo, Jon; Poza, Javier; Garramiola, Fernando; Madina, Patxi (MDPI, 2021)The need to manufacture more competitive equipment, together with the emergence of the digital technologies from the so-called Industry 4.0, have changed many paradigms of the industrial sector. Presently, the trend has ... -
Data‐Driven Low‐Frequency Oscillation Event Detection Strategy for Railway Electrification Networks
Gonzalez-Jimenez, David; del-Olmo, Jon; Poza, Javier; Garramiola, Fernando; Madina, Patxi (MDPI, 2023)Low-frequency oscillations (LFO) occur in railway electrification systems due to the incorporation of new trains with switching converters. As a result, the increased harmonic content can cause catenary stability problems ... -
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. ... -
DC-Link Voltage and Catenary Current Sensors Fault Reconstruction for Railway Traction Drives
Garramiola, Fernando; del-Olmo, Jon; Poza, Javier; Madina, Patxi; Almandoz, Gaizka (MDPI AG, 2018)Due to the importance of sensors in control strategy and safety, early detection of faults in sensors has become a key point to improve the availability of railway traction drives. The presented sensor fault reconstruction ... -
Double Dead-Time Signal Injection Strategy for Stator Resistance Estimation of Induction Machines
Poza, Javier; Garramiola, Fernando; Rivera, Christian A.; Iturbe, Ion (MDPI, 2022)A sensorless online temperature estimator is presented in this paper, which estimates the temperature using a novel signal injection strategy. This allows to eliminate the temperature sensors in the machine, as well as ... -
Effects of manufacturing tolerances of permanent magnets in fractional slot permanent magnet synchronous machines
Zárate Barriga, Sergio; Almandoz, Gaizka; Ugalde, Gaizka; Poza, Javier (IET, 2019)The fractional slot permanent magnet synchronous machines are well-known for their low torque ripple. However, in mass-production machines, not all the permanent magnets are identical due to the manufacturing tolerances ... -
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 ... -
Fast finite element based vibration response calculation procedure for permanent magnet synchronous machines
Mendizabal, Mikel; McCloskey, Alex; Zárate Barriga, Sergio; Poza, Javier; Almandoz, Gaizka (IEEE, 2024)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, magnetic circuit ... -
Field Weakening Characteristics Computed with FEM-Coupled Algorithms for Brushless AC Motors
Rivera, Christian A.; Almandoz, Gaizka; Ugalde, Gaizka; Poza, Javier (MDPI AG, 2018)Finite Element Method (FEM) analysis tools are the most adopted in the design of brushless alternating current motors due to the advantage of considering multi-physics effects with dependencies of variables such as ... -
Hardware-in-the-loop performance analysis of a railway traction system under sensor faults
Garramiola, Fernando; Poza, Javier; del-Olmo, Jon (IET, 2019)Fault mode and effects analysis (FMEA) has been used during decades for analysing the effects of faults in different applications. Initially, FMEA based on risk priority numbers provided information about the effects in ... -
Hybrid Fault Detection and Diagnosis Approach of Power Connections for Induction Motors
Gonzalez-Jimenez, David; del-Olmo, Jon; Poza, Javier; Sarasola, Izaskun; Cabezas Olivenza, Mireya (IEEE, 2025)The increasing demand for reliable electric mobility solutions highlights the need for advanced fault detection and diagnosis (FDD) strategies to ensure system reliability and safety. This paper presents a hybrid approach ... -
A Hybrid Sensor Fault Diagnosis for Maintenance in Railway Traction Drives
Garramiola, Fernando; Poza, Javier; Madina, Patxi; del-Olmo, Jon; Ugalde, Gaizka (MDPI AG, 2020)Due to the importance of sensors in railway traction drives availability, sensor fault diagnosis has become a key point in order tomove frompreventivemaintenance to condition-basedmaintenance. Most research works are limited ... -
Industrial Design of Electric Machines Supported with Knowledge-Based Engineering Systems
Rivera, Christian A.; Poza, Javier; Ugalde, Gaizka; Almandoz, Gaizka (MDPI, 2021)The demand for electric machines has increased in the last decade, mainly due to applications that try to make a full transition from fuel to electricity. These applications encounter the need for tailor-made electric ... -
Integral Sensor Fault Detection and Isolation for Railway Traction Drive
Garramiola, Fernando; del-Olmo, Jon; Madina, Patxi; Almandoz, Gaizka; Poza, Javier (MDPI AG, 2018)Due to the increasing importance of reliability and availability of electric traction drives in Railway applications, early detection of faults has become an important key for Railway traction drive manufacturers. Sensor ...
