Avancerad sökning
Hittade 2 avhandlingar som matchar ovanstående sökkriterier.
1. Waste-heat Recovery Using Thermoelectricity and Silicon Carbide Power Electronics
Sammanfattning : Energy consumption in the world has increased continuously due to a growing population and increased energy consumption per capita. Moreover, the largest part of consumed energy still comes from fossil sources which in 2016 was more than 130 PWh. LÄS MER
2. On Gate Drivers for MOS-Controlled Power Devices and dv-dt Filters for Train Traction Converters
Sammanfattning : In this thesis, low-loss gate-drive solutions and a proposed dv/dt-filter have been investigated with focus on train traction converters with dv/dt constraints.By using the silicon carbide (SiC) junction field-effect transistor (JFET), the switching losses can be significantly reduced compared to the commonly used insulated-gate bipolar transistor (IGBT), but complex gate-driver solutions are required for high utilization in terms of loss reduction. LÄS MER