  In recent years, with the development of wind energy, the number and scale of
wind farms are developing rapidly. Since offshore wind farm has the advantages
of stable wind speed, clean, renewable, non-polluting and no occupation of
cultivated land, which has gradually become a new trend of wind power industry
all over the world. The operation and maintenance mode of offshore wind power
is developing in the direction of digitization and intelligence. It is of great
significance to carry out the research on the monitoring, operation and
maintenance of offshore wind farm, which will be of benefits to reduce the
operation and maintenance cost, improve the power generation efficiency,
improve the stability of offshore wind farm system and build smart offshore
wind farm. This paper will mainly analyze and summarize the monitoring,
operation and maintenance of offshore wind farm, especially from the following
points: monitoring of "offshore wind power engineering & biological &
environment", the monitoring of power equipment and the operation & maintenance
of smart offshore wind farms. Finally, the future research challenges about
monitoring, operation and maintenance of smart offshore wind farm are proposed,
and the future research directions in this field are prospected.
