A novel eighteen-level inverter for an open-end winding induction motor

Kumar, Sanjiv; Agarwal, Pramod

doi:10.1109/iicpe.2014.7145017

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…7 shows the proposed OEWIM drive which is simple and cost-effective with each end fed with two-level inverter resulting in the inverter output voltage having three and four levels with 415V as the input voltage to the primary of the zig-zag transformer. MLIs of more than four levels feeding OEWIMs are reported in [30], but as the number of levels increases the complexity and cost of the hardware also increase. This arrangement, besides being simpler in design, will have a better voltage profile having lesser dV/dt stress, lower harmonics both in input current and inverter output voltage and reduced CMV.…”

Section: Proposed Three and Four-level Inverter Based Oewimmentioning

confidence: 99%

Performance Comparison of Electric Drives for Chopping/Shredding Sugarcane in Sugar Industry

Kumar¹,

Kumar²

2023

AJSE

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A performance comparison of the conventional slip ring induction motor (SRIM) drive and the recently inducted variable frequency drive (VFD) in the sugar industry, for sugarcane preparation (chopping/ shredding of sugarcane), is carried out to assess their effectiveness and to explore better electric drives for the application. These high inertial machines demand high starting torque and mitigating means to reduce surge load due to the impact load imposed on them. Though, both the drives meet the requirement but the SRIM drives are subjected to huge slip power loss, low power factor, unequal load sharing problem for coupled motors and high drop in rpm, whereas VFDs are subjected to the problems of input current harmonics, high dV/dt stress and common-mode voltage (CMV). In this paper, along with the performance comparison a three/four-level multilevel inverter (MLI) fed open-end winding induction motor (OEWIM) drive is also proposed as an improvement over the existing ones.

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Section: Proposed Three and Four-level Inverter Based Oewimmentioning

confidence: 99%