A Comparison Study Between Hysteresis and Sinusoidal Pulse Width Modulation for Induction Motor Drive

Abstract

In This paper compares the control strategies for three phase voltage source inverters, which have been the subject of extensive research in the last few years. Even if the inverter topologies that require the fewest switching elements yield the most efficient results, the switching technique that is as effective as the topology, at least. In addition, the inverter's selected switching technique will effectively suppress harmonic components while generating the optimal output voltage and current. To manage voltage source inverters, to regulate three phase voltage source inverters, several PWM approaches are frequently employed. Sinusoidal PWM and hysteresis band PWM are two examples of these techniques. MATLAB/SIMULINK has been used to model these modulation techniques that are applied in voltage source inverters to generate variable frequency and amplitude output voltage and current. 
Furthermore, a comparison is made between the overall harmonic distortions of the output voltages and current. Simulation tests have revealed that there is greater THD in the output current and voltages of voltage source inverter when sinusoidal pwm is used. Hysteresis band pwm has shown the ability to produce a lower overall harmonic distortion and more efficient output voltage and current.