Sökning: "direct current charging"
Visar resultat 1 - 5 av 17 uppsatser innehållade orden direct current charging.
1. Fast charging of electrical vehicles with help from battery energy storage systems : A study of how batteries can lower the power peaks for fast charging of electrical vehicles in Stockholm
M1-uppsats, KTH/Hälsoinformatik och logistikSammanfattning : To enable fast charging of electric vehicles in Stockholm or sites where the electrical energy is limited and the number of chargeable vehicles increases, there is a need to investigate new solutions to comply with the future demand. The goal of this project is to investigate what the conditions are in Stockholm today and investigate what is needed to enable fast chargers in Stockholm city. LÄS MER
2. Development of an on-board charger model for real time simulation
Master-uppsats, KTH/Väg- och spårfordon samt konceptuell fordonsdesignSammanfattning : Electrification of vehicles is now one of the top priorities of automotive manufacturers in orderto comply with the sustainability goals and standards set by the United Nations. One of thedisadvantages faced by electric vehicles is a longer time required for charging the vehicles ascompared to refuelling a conventional vehicle. LÄS MER
3. Extension of low voltage distribution by pure DC or mixed AC/DC parts for integration of solar PV and EV charging
Master-uppsats, KTH/Skolan för elektroteknik och datavetenskap (EECS)Sammanfattning : This work examines the local distribution system in two residential areas in two Swedish towns, Oxelösund and Karlskrona, and studies how integration of PV systems and electric vehicle (EV) charging stations (CS) will affect the present distribution system. The research questions focus on the economic feasibility of a LVDC system, how it compares to a traditional LVAC (low voltage alternating current) system from an economic and technical perspective, and the possibilities a LVDC system brings to other DC component applications. LÄS MER
4. ELECTRIFICATION OF THE SWEDISH VEHICLE FLEET: CHARGING DEMAND AND THE POWER SYSTEM
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : With the transport sector switching to electric energy to reduce greenhouse gas emission, the supply and demand in the energy system are impacted by this transition. Meanwhile, there are not a lot of studies focus on the electrification of the vehicle fleet in Sweden. LÄS MER
5. Wireless Power Transfer in Cavity Resonator
Kandidat-uppsats, Uppsala universitet/Fasta tillståndets elektronikSammanfattning : The purpose of this paper is to achieve wireless power transfer inside a resonating cavity, and thereby apply this to charge batteries. The idea is to convert radio frequency waves into direct current, which can charge the batteries. This was done by creating an LC-antenna, which in turn was connected to a rectifier. LÄS MER