Design and Performance Analysis of Brushless Direct Current (BLDC) Motor Controller for Electric Scooter

Abstract

Abstract Electric vehicle is an alternative to substitute internal combustion engine when fuel availability is difficult to obtain. Electric energy can be obtained from renewable energy and non-renewable energy. Electric vehicles like electric scooters consist of many parts. The parts used in an electric scooter have requirements such as reliability, safety, good performance, and high efficiency. Brushless direct current (BLDC) motor controller is one of the main components in the electric scooter. This paper presents a design and performance test of the BLDC motor controller. The controller uses PID current control with six step commutation in a trapezoidal control. The motor current ripple is eliminated by using a digital isolator. Tests were carried out using an Eddy Current Dynamometer. The results show that the current ripple is sucessfuly reduced which makes the controller suitable for electric scooter applications.