000007719 001__ 7719
000007719 005__ 20240626123056.0
000007719 02470 $$2doi$$a10.24868/issn.2631-8741.2018.006
000007719 035__ $$a2536799
000007719 037__ $$aGENERAL
000007719 245__ $$aThe Expanding Role of Variable Frequency Drives in Naval Automation
000007719 269__ $$a2018-10-02
000007719 336__ $$aConference Proceedings
000007719 520__ $$aVariable Frequency Drives (VFDs) have provided improvements in the U.S. Navy across a myriad of shipboard applications through replacement of full voltage across-the-line contactors and modification of earlier hydraulic designs.  The Collective Protective System (CPS) and Electronic-Standard Tensioned Replenishment Alongside Method (ESTREAM) are two examples.  These applications offer a revealing list of long term benefits of maintenance savings, equipment performance gains, and overall operational efficiencies.  In the case of the CPS, innovatively the engineers applied the power affinity laws and electrical power triangle principle to gain savings on the system’s power consumption and alleviate motor wear and tear.  For the ESTREAM, the VFD’s torque limit feedback was applied to achieve more responsive tension and speed control of the underway replenishment (UNREP) process.  Because extended equipment service life, increased reliability, and greater performance directly translate to a greater ability for the ship to accomplish its mission, such compelling reasons will generate further adoption of VFDs into other applications of the modern navies of today.   
000007719 542__ $$fCC-BY-NC-ND-4.0
000007719 6531_ $$aVFDs
000007719 6531_ $$aaffinity laws
000007719 6531_ $$aESTREAM
000007719 6531_ $$aCPS
000007719 6531_ $$aPower Factor
000007719 6531_ $$aUNREP
000007719 7001_ $$aJohnson, W A$$uRockwell Automation, Marlborough, MA USA
000007719 773__ $$tConference Proceedings of iSCSS
000007719 773__ $$jiSCSS 2018
000007719 789__ $$whttps://zenodo.org/record/2536799$$2URL$$eIsIdenticalTo
000007719 85641 $$uhttps://www.imarest.org/iscss$$yConference website
000007719 8564_ $$9c19ace6e-7c87-4554-b689-60ffb306dd3e$$s1190438$$uhttps://library.imarest.org/record/7719/files/ISCSS%202018%20Paper%20013%20Johnson%20FINAL.pdf