The invention discloses a cooling
system for an offshore wind generating set. The cooling
system comprises a
circulating pump, a filtering device, a radiator, a heating part, a three-way
electromagnetic valve and an
expansion tank which are arranged in a cabin and are connected end to end in turn to form a circuit, a
seawater cooler arranged in
seawater, and an
electric control device, wherein a temperature detection device and a
pressure detection device are arranged on a connecting pipeline between the radiator and the heating part in turn; the
seawater cooler is connected with the three-way
electromagnetic valve and the
expansion tank respectively; and the
electric control device is electrically connected with the temperature detection device, the
pressure detection device, the heating part, the
expansion tank and the
circulating pump respectively. The seawater has a low temperature and a
high heat exchange
mass flow rate, so compared with the conventional
system taking air as a cold source, the system taking the seawater as a final cold source is suitable for the development and application of a higher-capacity wind generating set; and the seawater cooler is soaked in the seawater, so the phenomenon that the air
heat exchanger of the conventional cooling system is corroded by salt mist in the long-term using process is avoided.