Mathematical Representation of the Dynamic System of the EUMA JY-1B-2 AC Motor

Abstract

Single-phase induction motors are one of the most widely used AC motors in various light industrial and household applications. Although their construction is simpler than three-phase motors, the dynamic analysis of single-phase motors is more complex because they only produce an alternating magnetic field (not a rotating field) during starting, thus requiring auxiliary capacitors or additional windings. This study aims to represent the dynamic characteristics of single-phase induction motors in the form of a mathematical model and simulate it in MATLAB/Simulink environment to evaluate system performance. The mathematical representation is built based on a per-phase equivalent model in the form of a T-equivalent circuit, which includes stator, rotor, and magnetization impedances. Parameter data are obtained from the technical specifications of the EUMA JY-1B-2 motor. Simulations are performed with sinusoidal voltage input and the analysis focuses on changes in current and torque with respect to load. The simulation results show that the mathematical model is able to represent the motor's behavior dynamically and provides a valid basis for the development of control systems and energy efficiency in single-phase AC motors. This study also opens opportunities for the application of digital controllers in motor systems based on mathematical models.