Behrooz Vahidi

A new power transformer risk modelling considering cumulative surge effects in insulation coordination studies

Accurate insulation risk assessment plays a critical role in ensuring the reliability of power transformers, given the significant technical complexities involved in their design. Back flashover failure (BF) caused by lightning overvoltages on incoming substation lines must be co...

Adaptive third-order super-twisting sliding mode control based on field-oriented control for three-phase induction motors satisfying power quality constraints

Robust control of the induction motor across a wide range of torque-speed operating points remains a challenge, particularly when the variable frequency drive (VFD) must satisfy stringent power quality constraints for motor insulation longevity. Therefore, this paper proposes an...