Modeling and Analysis of Multi-Phase Inverter Fed Induction Motor Drive with Different Phase Numbers
نویسندگان
چکیده
This paper presents a modeling and analysis of multi-phase inverter fed multi-phase induction motor drive with different number of phases. Multiphase induction motor drives possess several advantages over conventional three-phase drives such as lower torque pulsation, fault tolerance, stability, high efficiency and lower current ripple and reduced current per phase without increasing voltage per phase etc., In this paper, a detailed d-q modeling of multi-phase induction motor drive with offset injection method based multi-phase VSI is developed. The simulation results are presented for 3, 5, 7, 9 and 11 phase induction motor under varying load conditions. The performance of the drive is analyzed in terms of stator current, power, torque ripple and fault tolerant feature respectively. Feasibility of the developed approach has been identified with the optimum number of phases for electric vehicle applications. Key-Words: Dynamic response, EV (Electric Vehicle), fault-tolerant feature, multi-phase drive, Switching technique, transient response.
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