Advanced search

Showing result 1 - 5 of 9 essays matching the above criteria.

1. 1. Implementation and Characterisation Testing of a PCDU for Nanosatellites

   University essay from Luleå tekniska universitet/Rymdteknik

   Author : Spyridon Gouvalas; [2023]
   Keywords : Electrical engineering; Testing; PCDU; Nanosatelllites; EPS; Power Management; Software Development; Hardware Development;

   Abstract : Satellite power management systems play a crucial role in ensuring the operational success andlongevity of satellite missions. As satellites operate in the harsh environment of space, efficient powermanagement is essential to maximize energy utilization, maintain stability, and extend mission lifespans. READ MORE

3. 2. Closed-loop control and data- recording of a modular-multilevel converter (MMC)

   University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)

   Author : Longgang Su; [2022]
   Keywords : Modular multilevel converters MMCs ; filed programmable gate array FPGA ; direct memory access DMA ; energy closed-loop control; data recording; ethernet.; Modulära multilevel-omvandlare MMC ; filed programmeable gate array FPGA ; direkt minnesåtkomst DMA ; energistyrning med sluten slinga; datainspelning; ethernet.;

   Abstract : Modular multilevel converters (MMCs) are the preferred converter solution in flexible ac transmission systems (FACTS) and high-voltage direct current (HVDC) applications. This is due to the high quality of the voltage and current signals, lower overall losses, and fewer problems with switching-related EMI. READ MORE

4. 3. Isolated Single-Stage Interleave Resonant PFC Rectifier with Active and Novel Passive Output Ripple Cancellation Circuit

   University essay from Uppsala universitet/Institutionen för elektroteknik

   Author : Abidemi Oluremilekun Eleyele; [2020]
   Keywords : single-stage AC DC converter; bridgeless power factor correction PFC rectifier; active passive ripple cancellation; zero current switching ZCS ; zero voltage switching ZVS ; Electric vehicle EV charger; LLC;

   Abstract : With the increasing demand for fast, cheaper, and efficient power converters come the need for a single-stage power factor correction (PFC) converter. Various single-stage PFC converter proposed in the literature has the drawback of high DC bus voltage at the input side and together with the shift to wide bandgap switches like GaN drives the converter cost higher. READ MORE

5. 4. Power cables in battery electric vehicles used in underground mining : Analysis of electromagnetic dynamics in high-power cables and development of application-specific design strategies for reduction of EMI

   University essay from Uppsala universitet/Elektricitetslära

   Author : Chisom Miriam Ekweoba; [2019]
   Keywords : ;

   Abstract : The electrification of the automotive industry is growing in popularity, considering the environmental impacts of the conventional diesel-powered automobile. However, from the electromagnetic compatibility (EMC) viewpoint, it is observed that the use of variable-frequency drives (VFD) and relatively high-power cables to propel electrical motors has led to a considerable rise in electromagnetic interference (EMI) within and outside the machine. READ MORE

6. 5. Advanced Throttle Control Hardware Implementation

   University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

   Author : Ender Gülerman; [2014]
   Keywords : ;

   Abstract : Low cost, reliable and durable solutions are required in all industries. In automotive industry, BLDC (Brushless Direct Current) motors are widely used due to its advantages over brushed DC motors, which also brings more complex commutation schemes and increased development cost. READ MORE