Wind turbine generator grid-connected point stability control method, system, equipment and medium

The invention discloses a wind turbine generator grid-connected point stability control method, system and device and a medium. The method comprises the steps that obtained parameter information of a wind turbine generator is substituted into a safety boundary expression, and a safety boundary value of an active power reference value is obtained through calculation; obtaining a system short-circuit ratio and a system short-circuit ratio safety boundary value based on the parameter information in combination with a system short-circuit ratio related expression; if the system short-circuit ratio is not smaller than the system short-circuit ratio safety boundary value, the active power reference value is not modified, and otherwise, the active power reference value is modified by combining the obtained wind turbine generator optimal power curve reference value and the safety boundary value with a value relation expression; and controlling the terminal voltage based on the active power reference value. According