2 research outputs found
Modelling of a vibro-impact power take-off mechanism for wave energy conversion
Ocean wave spectra are broad-banded, while wave
energy conversion systems are designed to harvest energy
efficiently within a narrow frequency range, resulting in low
overall power capture efficiency. This paper aims to introduce
a nonlinear vibro-impact power take-off (PTO) mechanism for
a heaving point absorber, in order to broaden its power capture
bandwidth and provide end-stop function. A mathematical
model of the vibro-impact mechanism is derived, and numerical
simulations are conducted under regular wave conditions,
to investigate the effect of the vibro-impact mechanism on
the system performance. Numerical results illustrate that the
heaving point absorber with the vibro-impact PTO system
exhibits a characteristics of band-pass effect, and the nonlinear
vibro-impact mechanism has the potential to broaden power
capture bandwidth, achieve end-stop function, and attenuate
peak-to-average power ratio
Modelling of a vibro-impact power take-off mechanism for wave energy conversion
Ocean wave spectra are broad-banded, while wave
energy conversion systems are designed to harvest energy
efficiently within a narrow frequency range, resulting in low
overall power capture efficiency. This paper aims to introduce
a nonlinear vibro-impact power take-off (PTO) mechanism for
a heaving point absorber, in order to broaden its power capture
bandwidth and provide end-stop function. A mathematical
model of the vibro-impact mechanism is derived, and numerical
simulations are conducted under regular wave conditions,
to investigate the effect of the vibro-impact mechanism on
the system performance. Numerical results illustrate that the
heaving point absorber with the vibro-impact PTO system
exhibits a characteristics of band-pass effect, and the nonlinear
vibro-impact mechanism has the potential to broaden power
capture bandwidth, achieve end-stop function, and attenuate
peak-to-average power ratio