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Research Paper | Electrical & Electronics Engineering | India | Volume 13 Issue 7, July 2024 | Rating: 3.8 / 10
Enhanced Converter-Based Systems to Improved Hybrid Electric Vehicle Performance
Nilesh Thorat [2] | Gopal Chaudhari [3] | Samadhan Patil
Abstract: In response to the escalating demand for sustainable transportation and heightened environmental consciousness, HEVs have emerged as a focal point of interest. This paper investigates the optimization of HEV efficiency by introducing and evaluating an innovative technology-a bidirectional converter-based system tailored specifically for HEVs. Positioned to redefine operational dynamics, this system holds the potential to make substantial strides in energy utilization and overall performance. Traditional electric vehicles often suffer from kinetic energy dissipation as heat through friction in their braking systems, leading to energy wastage. The integration of regenerative braking, facilitated by bidirectional converters, presents a transformative solution. This technology not only captures and stores dissipated energy during braking but also enables its efficient reuse, contributing to an extended driving range and heightened overall efficiency. The bidirectional converter assumes a pivotal role in this system, facilitating both the charging and discharging of the vehicle's energy storage system. Its unique ability to alter power flow direction not only enables efficient regenerative braking but also enhances energy transfer, ultimately reducing the total cost, size, and weight of the system. Amidst the challenges of rising energy consumption and the environmental impacts of conventional fuel sources, this paper aims to explore, analyze, and optimize the performance of the bidirectional converter-based system in HEVs. Through this endeavor, the paper strives to contribute to the ongoing evolution of eco-friendly transportation solutions, fostering a more sustainable and energy-efficient future. Simultaneously, addressing environmental concerns and uncertainties surrounding oil sources, the vehicle industry is increasingly embracing electricity as an alternative energy source. Regenerative braking emerges as an effective strategy to extend the driving range of battery-powered EVs. In this paper, regenerative braking for an electric vehicle is managed by a non-isolated bidirectional converter. During motoring, the converter utilizes the battery to supply energy to the motor. Conversely, during regenerative braking, the converter harnesses the available back emf to charge the battery. This process successfully captures and stores a substantial portion of the energy lost during braking, offering a sustainable means of energy recovery. The recovered energy is then stored in the battery, significantly improving battery performance and, consequently, enhancing the driving range. The simulation of this system is conducted using MATLAB/Simulink to validate the results through the creation of a real-world prototype. This paper report encompasses the simulation findings and sets the stage for potential advancements in electric vehicle technology.
Keywords: Bidirectional Converter, H-bridge, class E-chopper, Regenerative Braking, Soft starting
Edition: Volume 13 Issue 7, July 2024,
Pages: 551 - 557