Predictive Control of Supercapacitors for Peak Power Reduction in Storage and Retrieval Machines in Intralogistics
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091054
Proceedings: PCIM Europe 2023
Pages: 6Language: englishTyp: PDF
Authors:
Melkowski, Fabian; Hofmann, Wilfried (Technische Universität Dresden, Department of Electrical Machines and Drives, Germany)
Abstract:
This paper presents methods of predictive control of supercapacitors to reduce power peaks at operating storage and retrieval machines (SRM) in intralogistics. The equalization of load, energy savings by temporarily storing braking energy and accelerated aging of supercapacitors due to cycling were taken into account to evaluate different charging strategies. The simulation in Matlab for a specified rack storage and stacker crane configuration results in a significant Power Peak Reduction (PPR) by up to 90 %. In addition, energy savings by up to 5.9 % and an increase in estimated calendar lifetime of around 35 % were achieved. The results show a significant efficiency enhancement of the drive system.