Various pressure vessels from Type I to Type IV are used to store hydrogen and compressed natural gas (CNG) at high pressures. The polymeric liner in Type IV composite pressure vessels (CPVs) does not share the load, unlike those with metallic liners (Type III); hence, the composite layers share the entire load. The winding angles play a crucial ro...
This article deals with the investigation of iron losses in toroidally wound laminated magnetic cores excited with wide-bandgap-device-based power electronic converters. The study aims to analyze the impact of selected pulsewidth modulation voltages on the iron losses, through an extensive experimental measurement campaign. In particular, four toro...
Multi-three-phase motor drives are experiencing a significant development among the multiphase solutions since they are configured as multiple three-phase units operating in parallel. Although the literature reports several torque controllers able to deal with multi-three-phase motors, most of them obtain high performance of torque regulation as lo...
The Short Time Thermal Transient (STTT) testing procedure is a fast and accurate method for evaluating the winding thermal capacitance and winding to back iron thermal resistance of AC motors. This procedure has been extensively validated for industrial motors and involves short duration DC excitation with the motor phases connected in series, foll...
[ES] El presente trabajo consiste en el diseño del bobinado del motor de inducción lineal del prototipo de Hyperloop que el equipo Hyperloop UPV presentará a la competición de la European Hyperloop Week. En este contexto, se realiza un estudio teórico del funcionamiento de los motores de inducción y, posteriormente, se analizan las diferentes alter...
PODSTAWKA, M. Vliv lidského faktoru při detekci vad letecké konstrukce a materiálů pomocí NDT. Disertační práce, Vysoká škola báňská – Technická univerzita Ostrava, Fakulta strojní, Katedra konstruování, 2021, 168 s, Vedoucí práce: Helebrant, J. Inovativní výrobní technologie mohou výrazně ovlivnit letecký průmysl, zvýšit bezpečnost letecké dopravy...
[ES] En el presente proyecto se aplican diferentes técnicas, principalmente basadas en el análisis de corrientes, para la detección de fallos en el devanado amortiguador de motores síncronos. Pese a no ser las máquinas eléctricas más utilizadas en la industria, debido a los inconvenientes que presentan respecto a otras alternativas, las máquinas sí...
Aging of high voltage generators and motors lead to changes in the dielectric properties of the stator winding insulation system. Research on the relation between aging and dielectric response has been going on for decades. A particular challenge is that the coil insulation consists of several materials: two that strongly affect the dielectric resp...
Les Transformateurs Moyenne Fréquence (TMF) sont une technologie innovante par rapport aux transformateurs basse fréquence, avec la promesse d’une réduction de volume et d’une augmentation du rendement. Cette thèse s’intéresse en particulier à leur conception pour des applications haute tension forte puissance, telles que les réseaux haute tension ...
