Co-simulación y control de velocidad de un Motor de Reluctancia Variable, con falla de cortocircuito entre vueltas del devanado

Abstract

In this work, the analysis of the inter-turn short-circuit fault of the incipient type was carried out for an 8/6-pole Variable Reluctance Motor (MRV) using the numerical co-simulation technique a finite element model is used for the motor, a PI type speed controller is implemented and the asymmetric H half bridge converter is also modeled considering the associated power electronics. A description of the machine is presented including the principle of operation, obtaining the commutation sequence and finally a magnetodynamic analysis using the finite element model is performed. Subsequently, a controller of the PI form with rejection of high frequency disturbances is proposed in order to evaluate it in regulation and speed tracking problems without fault. Finally a inter-turn short.circuit fault is simulated at phase A (1, 3, 5 and 7 turns). The fault was represented by means of an RC circuit in parallel with the section of the winding that is short-circuited in one phase of the motor, capturing the behavior of the electromagnetic torque, current and voltage of each phase and angular velocity of the rotor.