SEW-EurodriveControl method for three-phase drives
Many control methods have been developed for three-phase motors, for which there are numerous terms. In order to bring clarity to the variety of terms and abbreviations, this article highlights basic properties using the Movi-C frequency inverter as an example.
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A three-phase system with three windings offset by 120° (a, b and c) can be represented in simplified form by a two-phase, orthogonal equivalent circuit diagram with α and β coordinates.