The invention discloses an offshore
photovoltaic system in the technical field of offshore
renewable energy sources, which comprises a
floating platform formed by connecting a plurality of floating body units, a photovoltaic
assembly is arranged on any floating body unit, a
ballast tank is arranged below the
floating platform, one end, far away from the
floating platform, of the
ballast tank is fixedly connected to the
seabed through an
anchor point assembly, and the other end of the
ballast tank is fixedly connected to the bottom of the sea. An adjusting mechanism is arranged between every two adjacent floating body units and comprises a first connecting piece, a memory
alloy assembly and a second connecting piece which are fixedly connected in sequence, the first connecting piece and the second connecting piece are connected with the two adjacent floating body units respectively, and the
phase change temperature of the memory
alloy assembly corresponds to the
sea surface temperature. The adjusting mechanism of the
photovoltaic system can automatically adjust the rigidity according to the
wave frequency, the phenomenon of local
stress concentration of the floating platform is reduced, the
photovoltaic system can better adapt to changeable
sea waves on the sea surface, and the sea wave resisting capacity of the photovoltaic
system is improved.