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In this work, a duty ratio control scheme for inverter fed six-phase induction machines using the direct torque control method based on a fuzzy inference system is presented. A six-phase induction machine has six windings spatially phase shifted by sixty electrical degrees. An improved steady state torque response has been achieved by using the duty ratio control and it has shown less torque ripple...
The presented paper proposes a new scheme for the speed sensorless control of six phase induction motor. This method is based on the current estimation, in which the controlled stator voltage is applied to the induction motor so that the difference between stator currents of the mathematical model and motor can be forced to decay to zero. To make a better dynamic response and reduce the transient...
In this paper, a new sensorless vector control technique for six-phase induction machines (SPIM) is presented. The machine has two three phase stator windings spatially shifted by 30 electrical degrees. The classical vector control of SPIM is employed. The proposed sensorless method does not require flux and speed estimators, it uses only difference between stator currents of the mathematical model...
This paper provides analysis and evaluation of two main control methods: field orientation and direct torque control, for controlling a six phase induction motor under normal and open phase fault conditions. The machine has two three phase windings spatially phase shifted by 60 electrical degrees with one common neutral point. The dynamic model of the machine is based on the transformation to orthogonal...
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