Speed Ripple and Dead Zone Effects Reduction in an 8/6 Switched Reluctance Motor Based on Classical Control Strategies

This work presents two control strategies, with the objective of reducing the undesirable effects of ripple and dead zone in the speed response of a switched reluctance motor (SRM) 8/6. The first strategy aims to reduce the dead zone by applying a double integrator classical controller, while the second strategy proposes a new strategy to reduce the speed ripple, which works in conjunction with a classic PI controller. The strategy, based on digital simulations shows a reduction on the dead zone effect and speed ripple, the simulations were performed using the Matlab® / Simulink software and are based on a simplified non-linear model that has the non-linearity of Coulomb friction plus viscous friction, as well as an ideal inverter circuit.