STUDY OF REGENERATIVE BRAKING AS A FRICTION BRAKE REPLACEMENT

• Main Author: Angga Permana, Diaz
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/36677
• Institution: Institut Teknologi Bandung

Highlighting the various advantages of the electric vehicle compared to combustion-engine car, electric vehicle's usage for personal and public transportation is increasing. Energy recovery is one of the potential advantages on electric vehicle. Regenerative braking is becoming potential energy recovery regarding the vehicle braking frequently occurs in a big city. In this research, the limitation energy of regenerative braking is studied for replacing friction brake. The equation of the limitation energy due to braking force and load is shown in this research. As a validation for the equation, the regenerative braking system on electric bicycle is prototyped. An electric vehicle is modelized by electric machine couplized by a mechanical load. The implemented system is divided into three parts, a DC machine couplized by another machine as mechanical load, a DC-DC Chopper two quadrant as machine current controller, and an energy storage that consists of power supply paralelized by supercapacitor. Machine speed profile, machine current profile, and supercapacitor voltage profile are the primary collected data from the experiment. The regenerative braking limitations due to braking current and machine intial speed are discussed in this research. Also, the efficiency profile due to braking current and machine initial speed variations is shown. As an introduction for further research, the comparison of speed profile in regenerative braking and frictional braking is presented. Conclude that the regenerative braking potential is determined on the kinetic energy and the braking current itself.