TY - JOUR
T1 - Electro-mechanical modeling and performance analysis of floating wave energy converters utilizing yo-yo vibrating system
AU - Sim, Kyuho
AU - Park, Jisu
AU - Jang, Seon Jun
N1 - Publisher Copyright:
© 2015 The Korean Society of Mechanical Engineers.
PY - 2015
Y1 - 2015
N2 - This paper proposes a floating-type wave energy conversion system that consists of a mechanical part (yo-yo vibrating system, motion rectifying system, and power transmission system) and electrical part (power generation system). The yo-yo vibrating system, which converts translational input to rotational motion, is modeled as a single degree-of-freedom system. It can amplify the wave input via the resonance phenomenon and enhance the energy conversion efficiency. The electromechanical model is established from impedance matching of the mechanical part to the electrical system. The performance was analyzed at various wave frequencies and damping ratios for a wave input acceleration of 0.14 g. The maximum output occurred at the resonance frequency and optimal load resistance, where the power conversion efficiency and electrical output power reached 48% and 290 W, respectively. Utilizing the resonance phenomenon was found to greatly enhance the performance of the wave energy converter, and there exists a maximum power point at the optimum load resistance.
AB - This paper proposes a floating-type wave energy conversion system that consists of a mechanical part (yo-yo vibrating system, motion rectifying system, and power transmission system) and electrical part (power generation system). The yo-yo vibrating system, which converts translational input to rotational motion, is modeled as a single degree-of-freedom system. It can amplify the wave input via the resonance phenomenon and enhance the energy conversion efficiency. The electromechanical model is established from impedance matching of the mechanical part to the electrical system. The performance was analyzed at various wave frequencies and damping ratios for a wave input acceleration of 0.14 g. The maximum output occurred at the resonance frequency and optimal load resistance, where the power conversion efficiency and electrical output power reached 48% and 290 W, respectively. Utilizing the resonance phenomenon was found to greatly enhance the performance of the wave energy converter, and there exists a maximum power point at the optimum load resistance.
KW - Electromechanical system
KW - Energy harvester
KW - Impedance matching
KW - Resonance
KW - Wave energy converter
KW - Yo-yo vibrating system
UR - https://www.scopus.com/pages/publications/84938227957
U2 - 10.3795/KSME-A.2015.39.1.079
DO - 10.3795/KSME-A.2015.39.1.079
M3 - Article
AN - SCOPUS:84938227957
SN - 1226-4873
VL - 39
SP - 79
EP - 87
JO - Transactions of the Korean Society of Mechanical Engineers, A
JF - Transactions of the Korean Society of Mechanical Engineers, A
IS - 1
ER -
