The Experts below are selected from a list of 348969 Experts worldwide ranked by ideXlab platform
Platform Idexlab - One of the best experts on this subject based on the ideXlab platform.
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real-time-pricing-v2.pdf
internal, 2021Co-Authors: Platform IdexlabAbstract:: Power management in data centers is becoming an increasingly important issue. Geographical load-balancing (GLB) is one such power management method, which
Xi Zhang - One of the best experts on this subject based on the ideXlab platform.
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Vehicle Power Management: Basic Concepts
Vehicle Power Management, 2011Co-Authors: Xi ZhangAbstract:This chapter focuses on fundamentals and basic concepts of vehicle Power Management. Several aspects are involved in this chapter as different sections, containing energy consuming effects and vehicle performance, introduction to drive cycles and discussion of vehicle Power demand, current Power Management research in various types of vehicles, and description of major software tools (i.e., MATLAB/Simulink, ADVISOR and PSAT) for structural optimization and verification of control strategies in vehicles.
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Wavelet Technology in Vehicle Power Management
Vehicle Power Management, 2011Co-Authors: Xi ZhangAbstract:The wavelet technology is introduced in this book for to the vehicle Power Management system by the authors for the first time. It can identify the high-frequency transients and real time Power demand of the drive line. By using the wavelet transform, a proper Power demand combination can be achieved for Power sources in all types of hybrid vehicles. The objective of the wavelet-based Power Management strategy is to improve system efficiency and life expectancy of Power sources (i.e., the fuel cell and battery), usually in the presence of various constraints due to drivability requirements and component characteristics. This chapter depicts the fundamental concepts of wavelets and filter banks for the design of the vehicle Power Management system. The feasibility analysis and detailed process of the wavelet-based vehicle Power Management strategy are given for various types of vehicle configurations. Additionally, the application of the wavelets for vehicle real-time environment is demonstrated.
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Future Trends in Vehicle Power Management
Vehicle Power Management, 2011Co-Authors: Xi ZhangAbstract:With an eye to the future development and potential problems of vehicle Power Management, this chapter first introduces some state-of-the-art technologies in alternative fuel vehicles and accordingly Powertrain components, and then delineates several thoughts including appropriate combinations of existing strategies, more considerations of safety factors from new components, precision improvement of battery SOC, better prediction of driving patterns using advanced communication technologies, etc. Magnificent prospects of vehicle Power Management are painted for readers in this chapter.
Minoru Mizuno - One of the best experts on this subject based on the ideXlab platform.
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Energy saving potential of office equipment Power Management
Energy and Buildings, 2004Co-Authors: Kaoru Kawamoto, Yoshiyuki Shimoda, Minoru MizunoAbstract:While many studies have estimated the energy saving potential of office equipment Power Management, there is no recent study about the energy saving potential of shortening the Power Management delay time. In this paper, we estimated the energy saving potential of the complete saturation of Power Management, and also the additional energy saving potential of shortening the Power Management delay time for PCs, displays, copiers, and laser printers in Japanese offices. To obtain key data, we conducted the surveys and field measurements of usage in business hours and the turn-off rate at night. We found that office equipment Power Management can save as much as 3.5 TWh per year, which is nearly equal to 2% of commercial electricity consumption in Japan. We also found that the energy use of office equipment in Japanese offices with no use of Power Management is even lower than that in US offices with maximum use of Power Management. This is primarily because the portable computer is much more popular in Japan, and also because the manual-off rate at night is more than twice that in the US.
Karsten Schwan - One of the best experts on this subject based on the ideXlab platform.
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virtualPower coordinated Power Management in virtualized enterprise systems
Symposium on Operating Systems Principles, 2007Co-Authors: Ripal Nathuji, Karsten SchwanAbstract:Power Management has become increasingly necessary in large-scale datacenters to address costs and limitations in cooling or Power delivery. This paper explores how to integrate Power Management mechanisms and policies with the virtualization technologies being actively deployed in these environments. The goals of the proposed VirtualPower approach to online Power Management are (i) to support the isolated and independent operation assumed by guest virtual machines (VMs) running on virtualized platforms and (ii) to make it possible to control and globally coordinate the effects of the diverse Power Management policies applied by these VMs to virtualized resources. To attain these goals, VirtualPower extends to guest VMs `soft' versions of the hardware Power states for which their policies are designed. The resulting technical challenge is to appropriately map VM-level updates made to soft Power states to actual changes in the states or in the allocation of underlying virtualized hardware. An implementation of VirtualPower Management (VPM) for the Xen hypervisor addresses this challenge by provision of multiple system-level abstractions including VPM states, channels, mechanisms, and rules. Experimental evaluations on modern multicore platforms highlight resulting improvements in online Power Management capabilities, including minimization of Power consumption with little or no performance penalties and the ability to throttle Power consumption while still meeting application requirements. Finally, coordination of online methods for server consolidation with VPM Management techniques in heterogeneous server systems is shown to provide up to 34% improvements in Power consumption.
Kaoru Kawamoto - One of the best experts on this subject based on the ideXlab platform.
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Energy saving potential of office equipment Power Management
Energy and Buildings, 2004Co-Authors: Kaoru Kawamoto, Yoshiyuki Shimoda, Minoru MizunoAbstract:While many studies have estimated the energy saving potential of office equipment Power Management, there is no recent study about the energy saving potential of shortening the Power Management delay time. In this paper, we estimated the energy saving potential of the complete saturation of Power Management, and also the additional energy saving potential of shortening the Power Management delay time for PCs, displays, copiers, and laser printers in Japanese offices. To obtain key data, we conducted the surveys and field measurements of usage in business hours and the turn-off rate at night. We found that office equipment Power Management can save as much as 3.5 TWh per year, which is nearly equal to 2% of commercial electricity consumption in Japan. We also found that the energy use of office equipment in Japanese offices with no use of Power Management is even lower than that in US offices with maximum use of Power Management. This is primarily because the portable computer is much more popular in Japan, and also because the manual-off rate at night is more than twice that in the US.
