Design and simulation of current regulators for induction motors using the error magnitude voltage vector correction (EMVVC)

An effective current controller algorithm is presented which achieves the elimination of voltage stress on the devices and complies with the pulse polarity consistency rule. The dynamic model of estimated electromotive force is developed to identify the fundamental line-line voltage zero crossing. This gives an optimal switching pattern of eight combinations 0-7 of states of the inverter devices. The voltage vector of the inverter output is determined from the desired voltage vector through the voltage vector selector in both EMVVC and EVVC (error voltage vector correction). As demonstrated by simulation results, the proposed EMVVC method outperforms the EVVC technique in four different data sets