IJSRP, Volume 5, Issue 11, November 2015 Edition [ISSN 2250-3153]
L. Vidyaratan Meetei, Benjamin A. Shimray and Rajkumari Malemnganbi
Torsional Vibration in industrial drive system can lead to a great economic loss due to loss in production when unexpected components failures result in unscheduled system shutdown. The control structures with proportional-integral controller supported by one additional feedback (from different state variables) effectively suppress the oscillation. However, this control structure can ensure only the free setting of damping coefficient but, not the resonance frequency at the same time. So, this control structure will not be proved efficient where the design specifications require the free setting of both. This paper presents the utilisation of two feedbacks control structures for the free setting of both damping coefficient and resonant frequency simultaneously. The structures are being simulated in MTALAB and the results are present here. Also, a comparison is done between the responses of single feedback and two feedbacks. The result shows that two feedback structures are more efficient than single feedbacks.