Servo loop gain calibration using Model Reference Adaptation in HDD servo systems

Wang, Fucai; Jia, Qing-Wei; Wang, Chunfeng; Wang, Jianyi

doi:10.1109/ccdc.2009.5191854

Cited by 3 publications

(1 citation statement)

References 12 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Track following requires that the position error, i.e., the relative difference between actual head position and desired should be minimum. For high performances, the HDD system should have consistent track following performances under the influence of gain variations that can be caused by external disturbances, changes in external temperatures [4].…”

Section: Introductionmentioning

confidence: 99%

Tuning and Analysis of Fractional Order Controllers for Hard Disk Drive Servo System

S¹,

P²

2015

IJERT

View full text Add to dashboard Cite

Hard-Disk-Drive Servo systems are mechatronic systems that demands for high precision control of output of the system. The head positioning servo system is to maintain the read/write head at a desired track (track following). The loop gain variations caused by different hardware components is a major problem that affects the tracking control performance of HDD's. To achieve consistent tracking performance, the problem demands for a controller that is robust to loop gain variations. In this paper, a fractional order proportional integral (FO-PI) and fractional order proportional integral derivative (FO-PID) controllers are proposed and designed. Simulation results shows that the proposed controllers can ensure robustness against loop gain variations and the overall tracking control performance is improved than traditional integer order controller. Key Words: Hard-disk drive, fractional order proportional integral (FO-PI) control, fractional order proportional integral derivative control (FO-PID), proportional integral derivative controller (PID), robustness, isodamping

show abstract

Section: Introductionmentioning

confidence: 99%