TY - GEN
T1 - A maximum power point tracking controller for thermoelectric generators
AU - Xie, Wei
AU - Huang, Guangyue
AU - Zhang, Xiao
AU - Deng, Fang
N1 - Publisher Copyright:
© 2017 Technical Committee on Control Theory, CAA.
PY - 2017/9/7
Y1 - 2017/9/7
N2 - Thermoelectric generators (TEGs) directly convert heat energy into electricity for power-supplying sensors and other portable electronic devices. In this paper, a maximum power point tracking (MPPT) controller in the modified perturb and observe (P&O) algorithm was designed on the basis of analyzing the output characteristics of the TEG modules. The MPPT controller consists of a voltage sensor, a current sensor, a microcontroller and a SEPIC converter, which keeps the operating point of the thermoelectric generator tracking the maximum power point (MPP). The thermoelectric generator was heated to generate electricity, and a supercapacitor accumulated that energy. Experimental results using the MPPT controller present that the thermoelectric generator's output voltage achieves around 5 V, the output power achieves upward of 2W when the temperature difference ΔT=75°C and the operating point of the thermoelectric generator accurately tracks the MPP with a tracking efficiency of 99.8%; the charging power can be improved 89.65%.
AB - Thermoelectric generators (TEGs) directly convert heat energy into electricity for power-supplying sensors and other portable electronic devices. In this paper, a maximum power point tracking (MPPT) controller in the modified perturb and observe (P&O) algorithm was designed on the basis of analyzing the output characteristics of the TEG modules. The MPPT controller consists of a voltage sensor, a current sensor, a microcontroller and a SEPIC converter, which keeps the operating point of the thermoelectric generator tracking the maximum power point (MPP). The thermoelectric generator was heated to generate electricity, and a supercapacitor accumulated that energy. Experimental results using the MPPT controller present that the thermoelectric generator's output voltage achieves around 5 V, the output power achieves upward of 2W when the temperature difference ΔT=75°C and the operating point of the thermoelectric generator accurately tracks the MPP with a tracking efficiency of 99.8%; the charging power can be improved 89.65%.
KW - Maximum power point tracking (MPPT)
KW - Modified P&O algorithm
KW - SEPIC converter
KW - Thermoelectric generators (TEGs)
UR - http://www.scopus.com/inward/record.url?scp=85032219010&partnerID=8YFLogxK
U2 - 10.23919/ChiCC.2017.8028802
DO - 10.23919/ChiCC.2017.8028802
M3 - Conference contribution
AN - SCOPUS:85032219010
T3 - Chinese Control Conference, CCC
SP - 9079
EP - 9084
BT - Proceedings of the 36th Chinese Control Conference, CCC 2017
A2 - Liu, Tao
A2 - Zhao, Qianchuan
PB - IEEE Computer Society
T2 - 36th Chinese Control Conference, CCC 2017
Y2 - 26 July 2017 through 28 July 2017
ER -