Design and Analysis of a Grid-connected DC Fast Charging Station for Dhaka-Chittagong Highway

TL;DR

This paper designs and analyzes a grid-connected DC fast charging station for the Dhaka-Chittagong highway, demonstrating its technical feasibility and potential to support EV adoption in Bangladesh.

Contribution

It introduces a detailed design and simulation of a high-power fast charging station tailored for a major highway in Bangladesh, addressing technical and economic challenges.

Findings

Peak output of 400V DC and 120 kW power achieved in simulation

Charging times and energy consumption analyzed for EVs

Provides a roadmap for deploying sustainable EV infrastructure in Bangladesh

Abstract

The growing adoption of electric vehicles (EVs) necessitates the development of efficient and reliable charging infrastructure, particularly fast charging stations (FCS) for addressing challenges such as range anxiety and long charging times. This paper presents the design and feasibility analysis of a grid-connected DC fast charging station for the Dhaka-Chittagong highway, a critical transportation corridor in Bangladesh. The proposed system incorporates advanced components, including a step-down transformer, Vienna Rectifier, and LC filter, to convert high-voltage AC power from the grid into a stable DC output. Simulated using MATLAB Simulink, the model delivers a peak output of 400V DC and 120 kW power, enabling rapid and efficient EV charging. The study also evaluates the system's performance, analyzing charging times, energy consumption, and distance ranges for representative EVs. By addressing key technical, environmental, and economic considerations, this paper provides a comprehensive roadmap for deploying fast charging infrastructure, fostering EV adoption, and advancing sustainable transportation in Bangladesh.