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.