Predictive Control of a Two-Input Two-Output Current System for Permanent Magnet Synchronous Machines

摘要

This paper presents a generalized predictive control (GPC) algorithm for the two-input two-output (TITO) current system of a permanent magnet synchronous machine (PMSM). This formulation, suitable for TITO coupled systems, assumes the decoupling of the permanent magnet synchronous machine in the d-q frame by using a multivariable GPC algorithm. Thus, the performances of the current control system of PMSM are improved compared to the classic current control solution with SISO-PI controllers. Finally, the simulations were carried out to control the d-q currents of a PMSM using the proposed TITO-GPC algorithm and the results were compared with those obtained with the classical current control structure based on SISO-PI controllers, with and without zero cancelation. The corresponding data show the usefulness of the multivariable predictive control approach.