Method for anti-islanding protection configuration of different voltage levels

The invention relates to an anti-islanding protection configuration method with different voltage levels, which can improve the anti-islanding protection stability and effectively improve the action time of a protection device, and is characterized in that when an anti-islanding protection device of a 110kV photovoltaic power station is configured, low-frequency protection, over-frequency protection, low-voltage protection, over-voltage protection, frequency abrupt change and over-high and over-low splitting of zero-sequence voltage are configured according to a system operation mode of the 110kV photovoltaic power station; the anti-islanding protection of the 66kV photovoltaic power station is provided with current direction protection, overload protection, overvoltage protection and low-voltage protection; the anti-islanding protection device of the 35kV photovoltaic power station is provided with overvoltage protection, low-voltage protection and frequency abrupt change protection; the protection function