DocumentCode :
3066913
Title :
Electromagnetic energy harvesting from train induced railway track vibrations
Author :
Wang, John J. ; Penamalli, G.P. ; Zuo, Lei
Author_Institution :
Dept. of Mech. Eng., State Univ. of New York at Stony Brook, Stony Brook, NY, USA
fYear :
2012
fDate :
8-10 July 2012
Firstpage :
29
Lastpage :
34
Abstract :
Anelectromagnetic energy harvester is designed to harness the vibrational power from railroad track deflections due to passing trains. Whereas typical existing vibration energy harvester technologies are built for low power applications of milliwatts range, the proposed harvester will be designed for higher power applications for major track-side equipment such as warning signals, switches, and health monitoring sensors, which typically require a power supply of 10 Watts or more. To achieve this goal, we implement a new patent pending motion conversion mechanism which converts irregular pulse-like bidirectional linear vibration into regulated unidirectional rotational motion. Features of the motion mechanism include bidirectional to unidirectional conversion and flywheel speed regulation, with advantages of improved reliability, efficiency, and quality of output power. It also allows production of DC power directly from bidirectional vibration without electronic diodes. Preliminary harvester prototype testing results illustrate the features and benefits of the proposed motion mechanism, showing reduction of continual system loading, regulation of generator speed, and capability for continuous DC power generation.
Keywords :
electric generators; energy harvesting; railways; vibrations; bidirectional vibration; continual system loading; continuous DC power generation; electromagnetic energy harvesting; electronic diodes; generator speed regulation; health monitoring sensors; irregular pulse-like bidirectional linear vibration; low power applications; milliwatts range; motion conversion mechanism; power 10 W; preliminary harvester prototype testing; regulated unidirectional rotational motion; switches; train induced railway track vibrations; vibration energy harvester technology; vibrational power; warning signals; Flywheels; Force; Generators; Rail transportation; Shafts; Tracking; Vibrations; electromagnetic; energy recovery; railroad; railway; vibration energy harvesting;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Mechatronics and Embedded Systems and Applications (MESA), 2012 IEEE/ASME International Conference on
Conference_Location :
Suzhou
Print_ISBN :
978-1-4673-2347-5
Type :
conf
DOI :
10.1109/MESA.2012.6275532
Filename :
6275532
Link To Document :
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