H. Kim, M. W. Degner, J. M. Guerrero, F. Briz and R. D. Lorenz, "Discrete-Time Current Regulator Design for AC Machine Drives," in IEEE Transactions on Industry Applications, vol. 46, no. 4, pp. 1425-1435, July-Aug. 2010, doi: 10.1109/TIA.2010.2049628