Flywheel Energy Storage System for Rolling Applications

This paper considers the issues related to the effectiveness estimation of the flywheel energy storage system of pilger rolling mills, presents the detailed review of reference materials. Energy saving methods are considered for a specific duty cycle. The tentative assessment of flywheel effectiveness is made. The calculation of loss components in electric motors of the rolling mill electric drive is shown. The dependences of the total losses of the electric drive on the values of moment of inertia are obtained. It is shown that the implemented flywheel system could provide the reduction of energy losses in case of heavy load chart. The averaged dependences of electrical and mechanical losses in electric motors as a function of the moment of inertia were used for analysis.