Cooling system and wind power generator set

A cooling system, comprising:

• a first cooling circuit for cooling a first heating component, a second cooling circuit for cooling a second heating component, a third cooling circuit for cooling a third heating component, a fourth cooling circuit for cooling a fourth heating component, a pump station unit and a heat dissipation unit;
• wherein the pump station unit comprises a pump group, a water distributor and a water collector, a main water supply pipe is arranged between the pump group and the water distributor, and a main water return pipe is arranged between the pump group and the water collector;
• the pump group provides a cooling medium for the first cooling circuit, the second cooling circuit, the third cooling circuit and the fourth cooling circuit via the water distributor;
• the first cooling circuit is directly communicated with the water distributor and the water collector, and the second cooling circuit, the third cooling circuit, and the fourth cooling circuit are respectively connected to the water collector via the heat dissipation unit.