Essays about: "switching transients"
Showing result 1 - 5 of 6 essays containing the words switching transients.
-
1. Gate Drive Design for SiC MOSFET Device Characterization : Investigation into the impact of the gate inductance and resistance on the switching behaviour of SiC Power MOSFETs
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Silicon Carbide as a wide-bandgap semiconductor has several physical and electrical advantages over Silicon for high voltage and high frequency applications. SiC as a MOSFET device has a lot of great characteristics like lower on-resistance and low input capacitances. READ MORE
-
2. Optimal Control and Thermal Managementof Heavy-Duty FCHEV Powertrains : Minimizing hydrogen consumption of an FCHEV using numerical optimal control and an integrated energy and thermal management system
University essay from Linköpings universitet/FordonssystemAbstract : The CO2 emissions from road vehicles must be reduced in order to avoid a 1.5 ◦C global warming. To reduce tailpipe emissions, a strong trend is to electrify powertrains to shift away from the use of fossil fuel. Among alternatives, the fuel cellhybrid electric vehicle (FCHEV) is seen as a promising configuration. READ MORE
-
3. Eliminating zero-missing phenomenon in long, high voltage, underground cables
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The maximum length of an high voltage underground cable (HV UGC) cable is oftenconstrained by the criterion that the cable cannot have more than 50% reactivepower compensation. If this limit is exceeded the current in the circuit breaker maynot have a zero crossing after energization, which is referred to as the zero missingphenomenon. READ MORE
-
4. High-Frequency Voltage Distribution Modelling of a Slotless PMSM from a Machine Design Perspective
University essay from KTH/ElkraftteknikAbstract : The introduction of inverters utilizing wide band-gap semiconductors allow for higher switching frequency and improved machine drive energy efficiency. However, inverter switching results in fast voltage surges which cause overvoltage at the stator terminals and uneven voltage distribution in the stator winding. READ MORE
-
5. Electric field distribution of sphere-plane gaps : A SIMULATION APPROACH
University essay from KTH/Skolan för elektro- och systemteknik (EES)Abstract : The continuous increase of the voltage levels in power transmission systems has lead to the occurrence of higher switching transients during their operation. The design of equipment and grid components able to sustain such a stressful operation, requires an intensive study of the electric field stress generated by these transients, and their distribution to the vicinity of each configuration. READ MORE