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Multi-phase induction motor (MIM) drives with polephase modulation (PPM) is suitable for the Electric vehicle(EV) applications because of the reasons, like constant power operation with high efficiency over an extended speed-torque range and high reliability. By using Pole-Phase modulation, in this paper a 45-phase squirrel-cage induction motor (IM) drive is proposed with 1:3:5:9:15 speed ratios for...
Pole phase modulation (PPM) of multiphase induction motor (MIM) drives increases the speed and torque range of MIMs used in high power propulsion and traction. Modulating the phase angle of voltage across stator windings which in turn adjusts the pole of MIMs to achieve wider speed and torque ranges is the basic principle of PPM. 15-phase PPM induction motor (PPMIM) drive gives 15-phase 4-pole, 5-phase...
Wide variation in speed from low speed crawling to high speed cruising, maintaining constant power operation is the most desired characteristic of a drive used in electric vehicles (EV). Pole phase modulated multiphase induction motor (IM) drive is capable of extending the constant power operation over very wide range of speed with transient high torque for electric launch or hill climbing. In this...
Pole phase modulated (PPM) multiphase induction motor (IM) drives for applications like ship propulsion starts with high pole mode of operation to provide high starting torque required and then switch over to low pole mode of operation for steady run with high speeds. The performance of the nine phase PPM IM drive in case of nine phase four pole operation is inherently good due to high phase number...
In this paper, a five-level inverter configuration is presented to improve the voltage and current harmonic profile. This topology is constructed based on the stator winding configuration of a four pole induction motor. Identical voltage profile winding coils of four pole induction motor are disconnected and fed with four two-level inverters. These four inverters are supplied with two isolated dc...
This paper presents the design of multiple output power supply from AC power supply that is used as an input to this power supply system. As an Embedded system works on different voltage levels because the sub modules used in any embedded system required different voltage levels as per their specifications, so power supply proposed in this paper produces +15V, −15V, +5V, −5V, +3.3V, +5V Isolated voltage...
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