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An over-modulation scheme of SVPWM used in multi-level inverters
Pages: 7-13
Year: Issue:  1
Journal: Electric Machines and Control

Keyword:  multi-levelinverterSVPWMover-modulationsimplified two-level;
Abstract: In order to improve voltage output capability of the multi-level inverter, an over-modulation scheme was studied, which is an extension of SVPWM for multi-level voltage source inverters. The over-modulation scheme based on two-level simplification algorithm, according to the modulation index mi(0≤mi≤1 ) , the algorithm is divided into three modulation modes. They are line-modulation ( 0≤mi <0. 907), Over-modulationⅠ(0. 907≤mi
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