A Novel Three Phase Neutral Voltage Modulation Strategy for Eleven Level Inverter with Reduced Number of Switches
Abstract
This project illustrates a novel pulse width modulation strategy for a three phase eleven level inverter with a reduced number of switches. Mainly this project includes the balanced line-to- line output voltages to control the modulation index for operation un balenced dc-links. In the proposed structure . too large of a dc-link imbalance precludes the balancing of the output voltages. This limitation is also discussed. the simulations for a Eleven-level phase-shifted modulated MLCI for electric vehicle traction motor drive show that the proposed method is able to balance line-to-line output voltages as well as to maximize the linear modulation range under the unbalanced dc-link conditions with reduced number of switches
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