Cognizance of Electric Vehicle Charging's Impacts on Distribution Transformers

Electric vehicles (EVs) have rapidly gained popularity in numerous countries, surpassing other transportation forms. The swift ascent of EV adoption in Bangladesh has exacerbated the prevailing energy crisis. Amid its growth, Bangladesh faces energy-related challenges stemming from excessive consumption. While electric vehicles offer benefits such as cost-effective transportation and reduced greenhouse gas emissions, the substantial energy demand for daily battery charging poses a formidable challenge. This equilibrium will shift shortly despite the current lower EV count compared to conventional vehicles in Bangladesh. Due to the impending increase in EV numbers, the high energy consumption required for frequent battery recharging has significant ramifications for power grids and distribution networks. This paper centers on comprehending the repercussions of EV charging on distribution transformers. Integrating a substantial number of EV chargers into the distribution grid engenders harmonics, which, in turn, influence voltage profiles, contribute to power losses, and ultimately impact electricity quality. This paper's contribution lies in its investigation of the challenges posed by the increasing adoption of electric vehicles in Bangladesh, particularly concerning the energy demand for EV charging and its impact on the distribution grid, with a specific focus on the role of distribution transformers and harmonics. The paper aims to provide insights and potential solutions for mitigating these challenges in the context of EV adoption.