A new optimization method is proposed in this paper for finding the firing angles in multi-level voltage source inverters to eliminate low-order selective harmonics and reduce total harmonic distortion (THD) value of the output voltage. For thid end, Fourier series is used for calculating objective function and selecting specific harmonics. Regarding the nature and complexity of the employed no...

This paper proposes a novel cascaded multilevel topology, named Single-dc-Source quasi-Z Source Cascade Multilevel Inverter. inverter has the ability to provide independent regulation of dc bus voltage each H-bridge, ensuring real power balancing and true symmetric waveforms. In addition, Inverter allows operating with single low PV array. provides detailed analysis operation design methodology...

 When utilized at low amplitude modulation indices, existing multilevel carrier-based PWM strategies have no special provisions for this operating region, and several levels of the inverter go unused. This paper proposes some novel multilevel PWM strategies to take advantage of the multiple levels in both a diode-clamped inverter and a cascaded Hbridges inverter by utilizing all of the levels ...

A new multilevel inverter (MLI) topology is proposedusing a level doubling network (LDN). The LDN takes the form of a half-bridge inverter to almost double the number of output volt-age levels. The concept (of the proposed LDN) has the capability of self-balancing during positive and negative cycles without any closed-loop control/algorithm, and it does not consume or supply any power. The topo...