Design and Implementation of a Four-Quadrant Six-Phase Induction Motor Drive

Six-phase induction machine is considered one of the promising multi-phase motors, which can be used in a large number of recent applications. Its design and control circuits were presented by many researches for getting high quality performance. This paper presents the modeling, control, drive circuit and practical implementation for a new 6-phase induction motor. A specific 6-phase winding angle was chosen by the authors to eliminate the current harmonics, pulsating torque, and boost reliability. The proposed controller and its data acquisition module are designed in MATLAB environment. To smooth the output waveforms of the converter, the low-pass filter parameters are carefully selected. Besides, different control strategies are evaluated in 4-quadrant operation of the motor such as Variable Frequency Drive (VFD) and Variable Frequency Variable Voltage Drive (VFVVD). The simulation and experimental results are compared and analyzed. The proposed design lessens the stress on power semiconductor devices, reduces the power rating for converter switches, and gives more flexibility for motor.