Essays about: "Direct-Current charging"

Showing result 1 - 5 of 7 essays containing the words Direct-Current charging.

1. 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

   University essay from KTH/Hälsoinformatik och logistik

   Author : Erik Wikström; [2023]
   Keywords : Electric vehicle; fast charging; direct current charging; battery energy storage system; Elfordon; snabbladdning; likströmsladdning; batterienergilagringssystem;

   Abstract : 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. READ MORE

3. 2. Development of an on-board charger model for real time simulation

   University essay from KTH/Väg- och spårfordon samt konceptuell fordonsdesign

   Author : Neil Wagle; [2022]
   Keywords : On board charger OBC ; Hardware in loop HIL ; Precharge; Power factor correction; Electric vehicle EV charging; Vehicle to grid V2G service; Omboardladdare OBC ; Hardware in loop HIL ; Precharge; Effektfaktorkorrigering; Laddning av elfordon; Tjänst för fordon till elnät;

   Abstract : 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. READ MORE

4. 3. Extension of low voltage distribution by pure DC or mixed AC/DC parts for integration of solar PV and EV charging

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

   Author : Sofie Jiang; [2022]
   Keywords : LVDC; LVAC; solar PV system; electric vehicle charging station; IKN-regulation; distribution system; RES integration; LVDC; LVAC; solceller; elfordon; laddstolpar; IKN-regelverk; distributionsnät; förnyelsebara energikällor;

   Abstract : 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. READ MORE

5. 4. Wireless Power Transfer in Cavity Resonator

   University essay from Uppsala universitet/Fasta tillståndets elektronik

   Author : Axel Djurberg; Fredrik Forsberg; Anton Lind; Ludvig Snihs; [2021]
   Keywords : cavity; resonator; radio frequency; wireless power transfer;

   Abstract : 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. READ MORE

6. 5. Local energy system - Comparing direct current (LVDC) and alternating current (LVAC)

   University essay from Lunds universitet/Industriell elektroteknik och automation

   Author : Markus Alm; [2020]
   Keywords : Local energy system; LVDC; Technology and Engineering;

   Abstract : This thesis uses a case study to compare the viability of using direct current instead of alternating current to supply power to 5 buildings in a local energy system (LES). The case study sought to show how using LVDC instead of LVAC could increase the effectiveness of solar panels (PV), batteries and interconnecting buildings into a local energy system (LES). READ MORE