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Reducing charge redistribution loss for supercapacitor-operated energy harvesting wireless sensor nodes

Published: 06 November 2014 Publication History

Abstract

With increasing demand of long term applications, supercapacitors have been widely chosen as energy storage devices for energy harvesting aware wireless sensor networks( WSNs) due to their long charging-discharging life cycles. However, few studies have focused on charge redistribution effect of supercapacitors in WSNs. In this paper, we investigate charge redistribution of supercapacitor and explore how it affects long term energy neutral operation (ENO). The Variable Leakage Resistance (VLR) model is used to analyze the charge redistribution effect. Our results indicate that charge redistribution may cause considerable amount of extra energy loss in long term ENO. A practical algorithm to minimize charge redistribution loss during energy neutral operation is proposed. The algorithm is computationally lightweight and can be incorporated into the state-of-the-art duty cycling power management strategies in WSNs. The proposed algorithm is proved to be effective in keeping the main branch and the delayed branch balanced and thus lowering energy dissipation from charge redistribution.

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  • (2019)Collaborative In-Network Processing for Internet of Battery-Less ThingsIEEE Internet of Things Journal10.1109/JIOT.2019.28990226:3(5184-5195)Online publication date: Jun-2019
  • (2018)Predictive Power Management for Internet of Battery-Less ThingsIEEE Transactions on Power Electronics10.1109/TPEL.2017.266409833:1(299-312)Online publication date: Jan-2018
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      cover image ACM Conferences
      ENSsys '14: Proceedings of the 2nd International Workshop on Energy Neutral Sensing Systems
      November 2014
      63 pages
      ISBN:9781450331890
      DOI:10.1145/2675683
      Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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      Publication History

      Published: 06 November 2014

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      Author Tags

      1. WSN
      2. charge redistribution
      3. energy-neutral systems
      4. supercapacitors
      5. systems

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      Overall Acceptance Rate 21 of 29 submissions, 72%

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      View all
      • (2022)A many-objective optimization charging scheme for wireless rechargeable sensor networks via mobile charging vehiclesComputer Networks10.1016/j.comnet.2022.109196215(109196)Online publication date: Oct-2022
      • (2019)Collaborative In-Network Processing for Internet of Battery-Less ThingsIEEE Internet of Things Journal10.1109/JIOT.2019.28990226:3(5184-5195)Online publication date: Jun-2019
      • (2018)Predictive Power Management for Internet of Battery-Less ThingsIEEE Transactions on Power Electronics10.1109/TPEL.2017.266409833:1(299-312)Online publication date: Jan-2018
      • (2017)Clustered Data Collection for Internet of Batteryless ThingsIEEE Internet of Things Journal10.1109/JIOT.2017.27608554:6(2275-2285)Online publication date: Dec-2017
      • (2016)Charge Redistribution-Aware Power Management for Supercapacitor-Operated Wireless Sensor NetworksIEEE Sensors Journal10.1109/JSEN.2015.251097616:7(2046-2054)Online publication date: Apr-2016

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