Adaptive control schemes based on characteristic model for servo motor drives

In the paper, two adaptive control schemes based on characteristic model (CM) method are proposed to achieve great dynamic performance for servo motor drive applications. Two second-order CMs of permanent magnet synchronous motors (PMSMs) established difference equation method. An controller consisting four laws is designed CMs. The implements an improved maintaining/tracking law that considers load torque ripple, plus a golden-section law, logic differential and integral law. addition, different systems using controllers established, both which simple implement can accurate position-tracking or speed-tracking in system. feasibility effectiveness experimentally tested verified platform.