Practical Maximum-Power Extraction in Single Microbial Fuel Cell by Effective Delivery through Power Management System

Jeongjin Yeo, Taeyoung Kim, Jae Kyung Jang and Yoonseok Yang
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Jeongjin Yeo: Division of Biomedical Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea
Taeyoung Kim: Energy and Environmental Engineering Division, National Institute of Agricultural Sciences, Rural Development Administration, 310 Nongsaengmyeong-ro, Wansan-gu, Jeonju-si, Jeollabuk-do 54875, Korea
Jae Kyung Jang: Energy and Environmental Engineering Division, National Institute of Agricultural Sciences, Rural Development Administration, 310 Nongsaengmyeong-ro, Wansan-gu, Jeonju-si, Jeollabuk-do 54875, Korea
Yoonseok Yang: Division of Biomedical Engineering, Chonbuk National University, 567 Baekje-daero, Deokjin-gu, Jeonju-si, Jeollabuk-do 54896, Korea

Energies, 2018, vol. 11, issue 9, 1-11

Abstract: Power management systems (PMSs) are essential for the practical use of microbial fuel cell (MFC) technology, as they replace the unstable stacking of MFCs with step-up voltage conversion. Maximum-power extraction technology could improve the power output of MFCs; however, owing to the power consumption of the PMS operation, the maximum-power extraction point cannot deliver maximum power to the application load. This study proposes a practical power extraction for single MFCs, which reserves more electrical energy for an application load than conventional maximum power-point tracking (MPPT). When experimentally validated on a real MFC, the proposed method delivered higher output power during a longer PMS operation time than MPPT. The maximum power delivery enables more effective power conditioning of various micro-energy harvesting systems.

Keywords: microbial fuel cell; energy harvesting; power management system; maximum-power point; constant voltage ratio maximum power-point tracking (MPPT) (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
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