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One of the big concerns in power conversion systems is the amount of harmonic content. This paper considers a seven level cascaded inverter and proposes a simple graphical approach, useful to obtain three switching angles which, if applied to the inverter, eliminates two harmonics. The method has been further improved for mitigating some additional harmonics. The effect of modulation index on variation...
Multilevel converters have gained popularity in both medium voltage and low voltage applications. To find out the connections between various multilevel voltage source converter topologies and reveal how to obtain new topologies, this paper has presented four methods to derive multilevel converter topologies. Many existing topologies as well as new topologies can be derived with the methods presented...
Finite control set model predictive control (FCS-MPC) is very effective and simple control approach which has been found suitable for control of various types of power converters. It is a flexible tool because it evaluates an arbitrary cost function which directly influences converter behavior according to particular demand. The limitation of this approach is that efficient calculation is available...
Multi-cell topologies based on three-phase input / single-phase output power converters have the drawback of dealing with an important oscillatory second harmonic current in the DC link. This requires the use of a large DC link capacitor in order to minimize the DC link voltage ripple. Different control schemes have been presented to reduce the second harmonic generated for the H bridge inverter aiming...
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