A Space Vector PWM Scheme for Multilevel Inverters Based on Two-Level Space Vector PWM

By Amit Kumar Gupta, Ashwin M. Khambadkone. IEEE transactions on industrial electronics (1982. Print), 2006

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Control Algorithms of Shunt Active Power Filter for Harmonics Mitigation: A Review (2017, methodology): “In fact, SVPWM for multilevel inverters is actually modified and expanded from a two-level SVPWM algorithm [58,70].”
A Survey on Neutral-Point-Clamped Inverters (2010, background): “2) Space Vector Modulator [10]–[15], [33], [60]: The three-level phase inverter has 33 = 27 different switching states which generate different voltage vectors defined by −→ Vs = 2 3 [VaN + aVbN + a2VcN ] (1) where a = ej(2π/3).”
Multilevel Voltage-Source-Converter Topologies for Industrial Medium-Voltage Drives (2007, background): “In addition, the space-vector modulation has been extended for the multilevel case [36], [37]”
Multilevel multiphase space vector PWM algorithm with switching state redundancy applied to three-phase four-leg converters (2009, unknown): “Complexity and computational cost of traditional multilevel SVPWM techniques increase with the number of levels of the converter, and most of them use trigonometric functions or precomputed tables [6], [ 7 ].”
Multilevel Multiphase Space Vector PWM Algorithm (2008, unknown): “In [24], a general solution is presented to adapt an existing twolevel modulator to a multilevel inverter.”