Wind power plant reactive voltage cluster control method based on multi wind turbine mutual aid

The invention discloses a wind power plant reactive voltage cluster control method based on multi wind turbine mutual aid, and belongs to the technical fields of an electric power system and the automation. According to the invention, different control policies are used for a double-fed asynchronous generator set and a permanent magnet synchronous generator set in a wind power plant by monitoring the grid connection point voltage; when the grid connection point voltage deviates from a normal work range, the existing low voltage ride though control policy is used for the double-fed asynchronous generator set, while a reactive support control policy is used for the permanent magnet synchronous generator set; by monitoring the grid connection point voltage, the operation modes of different wind turbines in the wind power plant are adjusted in real time; without adding hardware, reactive voltage balance of the existing wind power plant is realized by changing the wiring topologies of the double-fed asynchronous generator set and the permanent magnet synchronous generator set; and the low voltage ride through capability of the wind power plant of the whole area is improved.