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| DOI | Resolve DOI: https://doi.org/10.1021/acsomega.9b01854 |
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| Author | Search for: Nguyen, Cong-Long; Search for: Tartakovsky, Boris1ORCID identifier: https://orcid.org/0000-0002-6588-3276; Search for: Woodward, LyneORCID identifier: https://orcid.org/0000-0001-8910-6773 |
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| Affiliation | - National Research Council Canada. Energy, Mining and Environment
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| Format | Text, Article |
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| Subject | capacitors; power conversion efficiency; electrodes; power; particulate matter |
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| Abstract | Direct electricity production from waste biomass in a microbial fuel cell (MFC) offers the advantage of producing renewable electricity at a high Coulombic efficiency. However, low MFC voltage (below 0.5 V) necessitates the simultaneous operation of multiple MFCs controlled by a power management system (PMS) adapted for operating bioelectrochemical systems with complex nonlinear dynamics. This work describes a novel PMS designed for efficient energy harvesting from multiple MFCs. The PMS includes a switched-capacitor-based converter, which ensures operation of each MFC at its maximum power point (MPP) by regulating the output voltage around half of its open-circuit voltage. The open-circuit voltage of each MFC is estimated online regardless of MFC internal parameter knowledge. The switched-capacitor-based converter is followed by an upconverter, which increases the output voltage to a required level. Advantages of the proposed PMS include online MPP tracking for each MFC and high (up to 85%) power conversion efficiency. Also, the PMS prevents voltage reversal by disconnecting an MFC from the circuit whenever its voltage drops below a predefined threshold. The effectiveness of the proposed PMS is verified through simulations and experimental runs. |
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| Publication date | 2019-11-19 |
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| Publisher | American Chemical Society |
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| Licence | |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | ec00dd47-5230-4d98-8a2e-95fe9bac725d |
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| Record created | 2020-11-25 |
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| Record modified | 2021-02-11 |
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