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The development approach for energy storage systems focuses on optimally sized capacitor modules to reduce peak power and to avoid energy recovery of production machines. Using servo presses as an example, the application of two different energy storage systems in the DC link is practically examined. A simulation model in Matlab/Simulink and a test stand of a servo press are proposed for representing...
The development approach for an energy storage system focuses on optimal sized double-layer capacitor modules to reduce peak power and to avoid malfunctions of production machinery caused by voltage interruptions. The required kind of charging for the energy storage system and adjustment of voltage control parameters was executed for line-side converters of drive groups in production machinery. The...
The development approach for an energy storage system with supercapacitors in the DC link of the drive unit in machine tools is focused on its optimal sizing in consideration of peak power reducing and energy efficiency improvement. The required change of parameters for the DC link voltage control was taken into account. The energy consumption of an electric drive with and without the energy storage...
The research of energy storage systems in the DC link of a machine tool is focused on the choice of the appropriate type of the energy storage system (passive or active) and its control strategy considering better energy efficiency. For the control strategy of the DC/DC converter two ways were taken into account: the proportional-integral and predictive control strategies. The energy consumption model...
An actual problem of the efficiency in machine tools is investigated by the improvement of the active power factor correction. An analysis of one method of the active power factor correction in machine tools is performed. A development of the active power factor correction is offered on the basis of the reduction of the power recovery in an infeed/regenerative module and the expansion of the dc link...
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