Open AccessEfficient Maximum Power Tracking of Energy Harvesting Using a μController for Power Savings
Author(s) -
Heo Sewan,
Yang Yil Suk,
Lee Jaewoo,
Lee Sangkyun,
Kim Jongdae
Publication year - 2011
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.11.0211.0149
Subject(s) - maximum power point tracking , maximum power principle , energy harvesting , power (physics) , maximum power transfer theorem , microcontroller , energy (signal processing) , control theory (sociology) , battery (electricity) , energy consumption , voltage , power management , electrical engineering , engineering , computer science , electronic engineering , mathematics , control (management) , physics , artificial intelligence , statistics , quantum mechanics , inverter
This letter describes an efficient technique for maximum power point tracking (MPPT) of an energy harvesting device. It is based on controlling the device voltage at the point of maximum power. Using a microcontroller with a power saving technique, the MPPT algorithm maintains the maximum power with low power consumption. An experiment shows that the algorithm maximizes the energy transfer power using an energy management IC fabricated in a 0.18‐μm process. Compared to direct energy transfer to a battery, the proposed technique is more efficient for low‐energy harvesting under variable conditions.