Realizing energy reduction of machine tools through a control-integrated consumption graph-based optimization method

Industrial manufacturing has started focusing on the topic of energy efficiency already some years ago. Nowadays, even machine controls are equipped with possibilities to switch the machine into energy saving modes or even to shut it down entirely based on fixed time intervals or manually. The developed combination and modification of state-based consumption modeling with graph-based optimization theory enables the control to choose the energy-optimal state sequence for given unproductive times. The approach is presented in detail and its saving potential is demonstrated by a usage scenario from an industrial setup. (C) 2013 The Authors. Published by Elsevier B.V. Selection and peer-review under responsibility of Professor Pedro Filipe do Carmo Cunha