naa a22 4500 510801587 CHVBK 20180411083357.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s11664-013-2557-4 doi (NATIONALLICENCE)springer-10.1007/s11664-013-2557-4 Evaluation of High Step-Up Power Electronics Stages in Thermoelectric Generator Systems [Elektronische Daten] [Kai Sun, Longxian Ni, Min Chen, Hongfei Wu, Yan Xing, Lasse Rosendahl] To develop practical thermoelectric generator (TEG) systems, especially radioisotope thermoelectric power supplies for deep-space exploration, a power conditioning stage with high step-up gain is indispensable. This stage is used to step up the low output voltage of thermoelectric generators to the required high level. Furthermore, maximum power point tracking control for TEG modules needs to be implemented into the power electronics stages. In this paper, the temperature-dependent electrical characteristics of a thermoelectric generator are analyzed in depth. Three typical high step-up power converters suitable for TEG applications are discussed: an interleaved boost converter, a boost converter with a coupled inductor, and an interleaved boost converter with an auxiliary transformer. A general comparison of the three high step-up converters is conducted to study the step-up gain, conversion efficiency, and input current ripples. The interleaved boost converter with an auxiliary transformer is found to be the most suitable topology for TEG applications, which is verified by experiments. TMS, 2013 Thermoelectric generator nationallicence power electronics stage nationallicence DC-DC converters nationallicence Sun Kai State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, 100084, Beijing, China aut Ni Longxian Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut Chen Min Department of Energy Technology, Aalborg University, 9220, Aalborg, Denmark aut Wu Hongfei 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 Rosendahl Lasse Department of Energy Technology, Aalborg University, 9220, Aalborg, Denmark aut Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 2157-2164 0361-5235 42:7<2157 2013 42 11664 https://doi.org/10.1007/s11664-013-2557-4 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11664-013-2557-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sun Kai State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, 100084, Beijing, China aut NATIONALLICENCE 700 1- Ni Longxian Jiangsu Key Lab of New Energy Generation, Nanjing University of Aeronautics & Astronautics, 210016, Nanjing, China aut NATIONALLICENCE 700 1- Chen Min Department of Energy Technology, Aalborg University, 9220, Aalborg, Denmark aut NATIONALLICENCE 700 1- Wu Hongfei 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 700 1- Rosendahl Lasse Department of Energy Technology, Aalborg University, 9220, Aalborg, Denmark aut NATIONALLICENCE 773 0- Journal of Electronic Materials Springer US; http://www.springer-ny.com 42/7(2013-07-01), 2157-2164 0361-5235 42:7<2157 2013 42 11664 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer