Power distribution network current differential protection method based on adaptive compensation coefficient and 5G channel-based differential protection method

The invention discloses a power distribution network current differential protection method based on an adaptive compensation coefficient and a 5G channel differential protection method. The method comprises the following steps: obtaining a fault current flowing through a system power supply side and a fault current flowing through a distributed power supply side; obtaining the protection action quantity and the protection braking quantity of the power distribution network current; obtaining the amplitude ratio of the fault current and the phase angle of the fault current on the two sides; calculating a self-adaptive compensation coefficient; and taking the condition that the protection action quantity of the power distribution network current is greater than the product of the braking coefficient, the self-adaptive compensation coefficient and the protection braking quantity of the power distribution network current as one of differential protection criteria, and carrying out differential protection on the p