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A supervision algorithm of ancillary services for distributed active front-end in a small industrial microgrid is presented. A comparison between distributed and centralized control of the active front-ends aimed to achieve optimal voltage regulation within the grid and minimal harmonic distortion both close to sensible loads and at PCC is performed.
This paper presents a type of converter working with high voltage and used for high step down voltage reduction. The converter can be used as the core for the construction of a Power Electronic Transformer (PET). A Single-Star Bridge Cells Modular Multilevel Cascade Converter (MMCC) is used to create a AC/DC or DC/DC converter with high step down voltage ratio. The converter uses LLC resonant converters...
In this paper, AC/DC converters for high voltage and high power applications are compared. Particularly Flying Capacitor Multicell and Modular Multilevel topologies are under consideration. The study is achieved in terms of power losses and total energy stored in the capacitors. A brief description of the topologies is given, and the main sizing criteria such as DC voltage, AC current and capacitor...
In this paper, a methodology for power losses analysis in Active Front End (AFE) converters based on VSI has been proposed. The interest in these converters topologies in AC/DC conversion, have become more popular in recent years due to its employment in renewable energy applications. Thus, it is interesting to analyze this converters in terms of their thermal behaviors in order to evaluate the system...
The authors present a multidisciplinary project called PROPYME, which is a team effort of the University of Vigo (Spain) and the FEUGA autonomous government foundation (Galicia, North West of Spain), both supported by several industrial enterprises from the Information and Communication Technologies (ICT) market. The main purpose of PROPYME project was to accomplish an innovative technology-transfer...
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