Energy Efficiency and Renewable Energy Management with Multi-State Power-Down Systems†
AbstractA power-down system has an on-state, an off-state, and a finite or infinite number of intermediate states. In the off-state, the system uses no energy and in the on-state energy it is used fully. Intermediate states consume only some fraction of energy but switching back to the on-state comes at a cost. Previous work has mainly focused on asymptotic results for systems with a large number of states. In contrast, the authors study problems with a few states as well as systems with one continuous state. Such systems play a role in energy-efficiency for information technology but are especially important in the management of renewable energy. The authors analyze power-down problems in the framework of online competitive analysis as to obtain performance guarantees in the absence of reliable forecasting. In a discrete case, the authors give detailed results for the case of three and five states, which corresponds to a system with on-off states and three additional intermediate states “power save”, “suspend”, and “hibernate”. The authors use a novel balancing technique to obtain optimally competitive solutions. With this, the authors show that the overall best competitive ratio for three-state systems is
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Andro-Vasko, J.; Bein, W.; Ito, H. Energy Efficiency and Renewable Energy Management with Multi-State Power-Down Systems. Information 2019, 10, 44.
Andro-Vasko J, Bein W, Ito H. Energy Efficiency and Renewable Energy Management with Multi-State Power-Down Systems. Information. 2019; 10(2):44.Chicago/Turabian Style
Andro-Vasko, James; Bein, Wolfgang; Ito, Hiro. 2019. "Energy Efficiency and Renewable Energy Management with Multi-State Power-Down Systems." Information 10, no. 2: 44.
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