A5036306213- Machine Fault Diagnosis Techniques
- Electromagnetic Compatibility and Noise Suppression
- earthquake and tectonic studies
- Electrostatic Discharge in Electronics
- Computational Physics and Python Applications
- Silicon Carbide Semiconductor Technologies
- Oil and Gas Production Techniques
- Earthquake Detection and Analysis
- Gear and Bearing Dynamics Analysis
- Satellite Communication Systems
- Multilevel Inverters and Converters
- GNSS positioning and interference
- Business, Innovation, and Economy
- Advanced Computational Techniques and Applications
- Engineering Diagnostics and Reliability
- Mobile Agent-Based Network Management
- Educational Research and Science Teaching
- Diverse Applied Research Studies
- VLSI and Analog Circuit Testing
- Control Systems in Engineering
- Seismology and Earthquake Studies
Universitat Politècnica de Catalunya
2007-2009
Ford Motor Company (United States)
2006
This paper examines winding faults as short circuit for permanent magnet synchronous motor (PMSM). The study is carried out by means of stator current harmonic analysis. dq0 transformation also used to diagnose the state machine, and Wavelet approach proposed extend analysis transitory failure. Experimental results full range speeds have been obtained, which demonstrate claims paper.
Bearing currents have been identified as a major cause of electrical machine failure when operating from solid-state pulse-width modulated inverter. This is because at frequencies corresponding to the switching time inverter semiconductors, charges accumulating in parasitic capacitances between stator and rotor create voltages across bearings that eventually discharge damage bearings. It be anticipated generators well motors would susceptible bearing this way, particularly wind turbine...
This paper presents a study of the permanent magnet synchronous machine (PMSM) running under eccentricity fault. To carry out two-dimensional (2-D) finite element analysis (FEA) is used. Relationships between stator current induced harmonics and dynamic air-gap were investigated. Advanced signal by means continuous wavelet transforms was performed. Simulation carried compared with experimental results .
La presente investigación tuvo como finalidad la extracción y caracterización fisicoquímica de almidón trigo (Triticum aestivum L.), para evaluar su funcionalidad agente en formación biopelículas comestibles. El proceso se llevó a cabo mediante vía húmeda por sedimentación natural. Así mismo, lleva elaboración una biopelícula con ser utilizada posteriormente recubrimiento comestible alimentos. Se obtuvo un rendimiento del 43 %. Dicho polisacárido caracterizó fisicoquímicamente presentando...
Main cause for bearing failure are the common mode circulating currents. Those currents appear due to use of inverters drive electric motors. This paper presents a new method fault detection by measuring common-mode It is also presented development an electronic device which allows detection. The has been tested in test bench showing promising results detect faults induction machines.
This paper presents the principle of operation a new algorithm based on instantaneous values to detect Transient Earth Faults, which has been validated by RTDS simulations and real cases from field. The short duration fault (between 2 10 ms), high frequency fault, transitory state after it disappears, are conditions cause trouble for conventional directional overcurrent units algorithms like Fourier Transform (DFT) or similar that do not have enough accuracy properly this kind faults...