A space-vector approach to the analysis and design of three-phase current controllers

This paper proposes a novel systematic approach to the analysis and design of three-phase current controllers based on the Space Vector Theory. Balanced load currents are considered so that the control is performed by two loops only. According to the proposed space-vector methodology, the two control loops are examined together, as if they were a single system. Well-known controllers are reviewed in the frame of the new approach, and new controllers are envisaged. The advantages and pitfalls of each scheme are easily recognised and discussed.