Distribution line protection setting method and device for adaptive distributed photovoltaic output

Abstract

The embodiment of the invention relates to a distribution line protection setting method and device for adaptive distributed photovoltaic output, and the method comprises the steps: inputting at least one protection device into a distribution line, and enabling the protection constant value of the protection device to be a first protection constant value; acquiring output data of a plurality of distributed photovoltaics at preset distributed photovoltaic output data acquisition time; calculating a second protection setting value according to the output data; and resetting the protection setting value of the protection device according to the second protection setting value. According to the technical scheme provided by the embodiment of the invention, the distribution line protection setting value is continuously updated according to the collected distributed photovoltaic output data, maloperation and refusal operation of distribution line protection caused by distributed photovoltaic output change can be avoided, and safe and stable operation of a power distribution network system is ensured.

Images