Summary: | In modern power electronics-based power systems, accurate modeling is necessary in<br />order to analyze stability and the interaction between the different elements, which are connected to<br />it. State space modeling seems a valid approach to study the modes of a certain system and their<br />correlation with its states. Unfortunately, this approach may require complicated calculations and<br />it is difficult to model advanced or emerging control techniques for grid-tied converters, such as<br />cascaded controllers (e.g., voltage and current) and virtual synchronous generators (VSGs). Moreover,<br />this approach does not allow an easy reconfiguration of the modeled system by adding, removing of<br />modifying certain elements. To solve such problems, this paper presents a step-by-step approach to<br />the converter modeling based on the Component Connection Method (CCM). The CCM is explained<br />in detail and a practical example is given, by modeling one exemplary VSG model available in<br />the literature. The obtained model is finally validated experimentally to demonstrate the practical<br />accuracy of such approach.
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