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|Title:||External vibration compensation via loop shaping and H∞ feedforward control design for hard disk drives in mobile applications|
|Keywords:||Acceleration feedforward control|
External vibration compensation
Hard disk drives
|Citation:||Du, C.,Ge, S.S.,Lewis, F.L.,Zhang, J. (2008). External vibration compensation via loop shaping and H∞ feedforward control design for hard disk drives in mobile applications. 22nd IEEE International Symposium on Intelligent Control, ISIC 2007. Part of IEEE Multi-conference on Systems and Control : 277-282. ScholarBank@NUS Repository. https://doi.org/10.1109/ISIC.2007.4450898|
|Abstract:||This paper focuses on compensation for external vibration effect on the positioning accuracy of hard disk drives. A feedforward controller is designed to attenuate the effect with the aid of a sensor to detect external vibrations. Loop shaping in frequency domain and H∞ method in state space are used to design the feedforward controller. The application results in a 1.8-inch disk drive with an accelerometer to measure acceleration signal show that 70% and 97% reduction of the position error signal can be achieved with the feedforward control designed by the loop shaping and H∞ method respectively. The robustness of the two methods is also evaluated and compared for external vibrations with amplitude variations. © 2007 IEEE.|
|Source Title:||22nd IEEE International Symposium on Intelligent Control, ISIC 2007. Part of IEEE Multi-conference on Systems and Control|
|Appears in Collections:||Staff Publications|
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