Experimental Verification of SPMSM with Active LC Filter by IRM-ILQ Current Control

This paper presents the stable and robust control of Surface Permanent Magnet Synchronous Motor (SPMSM) with Active LC Low Pass Filter (LC-LPF) by IRM-ILQ (Inverse Reference Model - Inverse Linear Quadratic) method. The output voltages of PWM inverters, which used for motor driving contain harmonic components due to its switching. LC-LPF is effective to eliminate those harmonics though, it has two dynamics. Therefore, applying the IRM-ILQ method is necessary since they have two degrees of freedom and can control followability and robustness at the same time. In this paper, the stable and robust control has been confirmed by experiments.