Inderscience Publishers

Three–level NPC rectifier–based midpoint converter–fed SRM drive

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Courtesy of Inderscience Publishers

This paper deals with a three–level Neutral Point Clamped (NPC) rectifier–based midpoint converter–fed Switched Reluctance Motor (SRM) drive. The three–level NPC rectifier for midpoint converter–fed SRM drive is used for improving power quality at AC mains and to balance the DC link capacitor voltages. The proposed three–level NPC rectifier is designed, modelled and its performance simulated using MATLAB/Simulink environment. The performance of proposed three–level NPC rectifier–based midpoint converter–fed SRM drive is compared with a six–pulse bridge converter–fed SRM drive to demonstrate its improved power quality.

Keywords: midpoint converter, power quality, switched reluctance motors, neutral point clamped, NPC rectifiers, carrier–based pulse width modulation, AC mains, DC link capacitor voltages, simulation

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