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The emerging Modular Multilevel Converters (MMC) technology is expected to play a key role in the construction of DC grids and integration of renewable energy sources (RESs) at bulk to medium and high voltage. The DC option is also perceived as solution to the steady increase in power demand and the collection of disperse conventional and variable generations. These can be achieved while maintaining...
The matrix converter (MC) arouses a growing interest because it provides many advantages. On the other hand, the association of these converters in parallel makes the operation of the system operation more reliable and offers the possibility of creating electrical micro-grids. This article presents a parallel association of MCs by droop parallelization technique, which allows the control of several...
Multilevel converters topologies present important benefits when they are used on medium and high power applications. However, it is necessary to design new alternating methods to control easily the internal dynamics of the converter. This paper presents a new voltage balancing strategy for a flying capacitor multilevel converter in conjunction with a space vector modulation technique. The advantages...
This paper presents a new control strategy for a high performance hybrid cascaded H-Bridge HB multilevel converter with integrated series Active Power Filter Stage APFS. Unequal DC voltage sources are used to energise the converter's HBs. This offers increased number of voltage levels using fewer number of series connected HBs. Simple hybrid stair-case/SVM modulation strategy is proposed to synthesise...
Multilevel converters are powerful converters in the medium/high power range. Inside this family of converters, the three-level neutral point clamped converter has its own importance. The main control methods associated with this converter are the carrier-based PWM with added homopolar components and the space vector PWM. One of the most important features of the NPC converter is the neutral point...
In this paper a novel seven-level hybrid converter topology is introduced which is based on the active neutral-point-clamped multilevel converter concept and is suitable for high-power applications. The paper also proposes a space vector modulation (SVM)-based switching strategy that takes advantage of redundant switching vectors of the SVM method to counteract the voltage drift phenomenon of the...
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