Browsing by Author "Muhammad Umar Hayat"

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    Power electronics based circuit design for fast charging of electric vehicles
    (UMT Lahore, 2022-04-11) Muhammad Umar Hayat; Muhammad Mazhar; Abdullah Jamshed
    To achieve the desired result, efforts can be effectively and economically reduced with the use of new design. Solar PV and DC-to-DC T-source converter found to be suitable for fast charging of electric vehicle. It contains bi-directional converter that requires dual power flow while charging and discharging of electric vehicles and buffer batteries. The DC-to-DC bi-directional inverter which is being used to provide the battery integration that supports the supply of residual power which is generated by photovoltaic panels to electric vehicle and the use of battery buffer whenever the need arises. Non-shoot through mode and shoot through mode are two modes of T-source inverter based on switches. In shoot through mode, energy convey from the source to load and output inductor is energized. In shoot through mode, both switches are switched on, thus the charge stored in the capacitors transferred to the inductors. The bus cables can be adjusted in better way to fulfil the needs of heavy loads due to electronic power system. For improving the efficiency and performance of battery electric vehicle, it’s important to have knowledge about the points that affect their performance. First of all, sun irradiance varies over a year from distance to distance of the earth. State of charging per day and complex factors such as starting time, travel distance and duration, driving speed, the day of week and temperature of the day has a relationship that effects the fast charging and its efficiency. As the distance traveled being increased, the need of fast charging of the day’s trajectory increases. The best choice for battery of electric vehicle is selected to be lithium-ion battery. It is very powerful and stable. These have high energy density, voltage capacity and low self discharge rate. This is idealized for fast charging as its single cell has longer charge retention.