naa a22 4500 510801447 CHVBK 20180411083357.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-012-2407-9 doi (NATIONALLICENCE)springer-10.1007/s11664-012-2407-9 A TEG Efficiency Booster with Buck-Boost Conversion [Elektronische Daten] [Hongfei Wu, Kai Sun, Junjun Zhang, Yan Xing] A thermoelectric generator (TEG) efficiency booster with buck-boost conversion and power management is proposed as a TEG battery power conditioner suitable for a wide TEG output voltage range. An inverse-coupled inductor is employed in the buck-boost converter, which is used to achieve smooth current with low ripple on both the TEG and battery sides. Furthermore, benefiting from the magnetic flux counteraction of the two windings on the coupled inductor, the core size and power losses of the filter inductor are reduced, which can achieve both high efficiency and high power density. A power management strategy is proposed for this power conditioning system, which involves maximum power point tracking (MPPT), battery voltage control, and battery current control. A control method is employed to ensure smooth switching among different working modes. A modified MPPT control algorithm with improved dynamic and steady-state characteristics is presented and applied to the TEG battery power conditioning system to maximize energy harvesting. A 500-W prototype has been built, and experimental tests carried out on it. The power efficiency of the prototype at full load is higher than 96%, and peak efficiency of 99% is attained. TMS, 2013 Thermoelectric nationallicence buck-boost conversion nationallicence maximum power point tracking nationallicence power management nationallicence Wu Hongfei Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut Sun Kai State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, 100084, Beijing, China aut Zhang Junjun Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut Xing Yan Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1737-1744 0361-5235 42:7<1737 2013 42 11664 https://doi.org/10.1007/s11664-012-2407-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-012-2407-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wu Hongfei Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 700 1- Sun Kai State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, 100084, Beijing, China aut NATIONALLICENCE 700 1- Zhang Junjun Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 700 1- Xing Yan Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 1737-1744 0361-5235 42:7<1737 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer