A Robust Current Controller for Uncertain Permanent Magnet Synchronous Motors with a Performance Recovery Property for Electric Power Steering Applications

• DOI: 10.3390/en11051224
• Publication Date: 2018-05-11T07:42:48Z
• Authors: Yonghun Kim; Hyung-Tae Seo; Seok-Kyoon Kim; Kyung-Soo Kim
• Keywords: Synchronous motor; Power steering

This paper presents a robust current tracking controller for permanent magnet synchronous motors (PMSMs) with performance recovery property electric power steering (EPS) applications. The contributions of this work are twofold. First, disturbance observer (DOB) is designed to compensate the disturbances arising from model–plant mismatches while reducing closed-loop sensitivity. Second, improve in frequency domain by assigning system. verified through simulations and experiments using 500 W PMSM connected an EPS