Design Features and Benefits of Advanced Multiphase Inverter-Fed Electric Drives

Abstract

The main purpose of this research is to show that the non-traditional controlled multiphase (i.e. having the phase number more than four) inverter-fed linear and nonlinear (for example, bow-shaped) asynchronous motor drives have great prospects for the use that are explained by more extensive control potentials and advantages of such drives in comparison with the three-phase analogous systems. In particular, the increase of the inverter-fed asynchronous motor phase number (more than four) in complex with the use of such a non-traditional method of the motor control as over-phase method allows to develop and create linear and non-linear drive systems having novel properties and improved technical and economic characteristics, for example, less motor mass and overall dimensions, the possibility to increase the motor movable secondary element motion speed over its synchronous value, etc.