Investigation of energy efficiency of servo motor drive hybrid press brake system: A comparative study with a traditional application

Abstract

In this study, an energy consumption comparison of the conventional valve-controlled and variable speed pump-controlled press brake systems was carried out experimentally. The envisaged studies have been applied to the 80-ton press brake. In conventional valve-controlled systems, the flow rate is adjusted with the help of a proportional valve while the required flow in the variable-speed pump-controlled system is provided by changing the pump speed with using of a servo motor. From the results obtained, it has been seen that 54% energy saving can be achieved in 100 cycles, and the amount of oil used has also been reduced.