Electric Rail Traction for Induction Motor Control of Hybrid PWM strategy by using fuzzy logic controller

Abstract

Switching losses are minimised, and reliability is improved, by using a low shift frequency in the electrical rail traction induction control system. However, with low switching frequencies, the usual single pulse width modulation (PWM) approach across the full speed range might produce an excessive number of harmonic components that sequentially induce motor heating, torsion ripple, and other detrimental consequences. Hybrid PWM techniques are proposed in this research to achieve low losses and total harmonics supported by very low shift frequencies by combining carrier-based asynchronous and synchronous modulation and optimal synchronous modulation techniques. The findings and simulations of the hybrid PWM approach offered by a fuzzy logic controller were used as collateral.