Article
Bulky Flywheel with a Smaller Flywheel and a Controlled Motor
Wide variations in load torque are experienced by process equipment with more demanding duty cycles. Torsional oscillations are a drawback of these, which frequently require a large flywheel for torque equalization. As a result, mechanical power transmission components become worn out, which eventually leads to equipment failure and extended, frequent downtime, which costs money. This article suggests a more straightforward and suitable substitute. Low moment of inertia and properly monitored VVVf drives provide a far superior option for significantly enhancing system behavior. The VVVf control-system enables power input management to the main electric drive which results in nearly identical demand torque output. The torque matching can be enhanced by employing a smaller flywheel. The presented study calculates the minimum requirement for flywheel moment of inertia to reduce the supply torque gap relative to the required torque characteristics. The energy calculations focus on the net transactions between all the components. The flywheel must absorb and release the same quantity of energy through one complete torque variation cycle.
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