A comparison among different voltage feeding algorithms for quasi-resonant DC link inverter-fed IM drives

Abstract

In the paper two control techniques are compared with respect to the traditional field oriented approach (FO), in order to define the range of applicability of each one. Targets of the different controls are to achieve a vector control and to generate firing commands for the quasi resonant inverter (QRI), that guarantee soft switching of the inverter switch, improving the dynamic response of the whole system. These targets are obtained by means of a state feedback approach.