Intelligent distributed compensation system and compensation method for power transmission line

The invention discloses an intelligent distributed compensation system and compensation method for a power transmission line, and belongs to the technical field of railway power. The intelligent distributed compensation system comprises a power transformation and distribution substation, a class I substation and a class II substation; a management machine is arranged in the power transformation and distribution substation, and a power through line model is preset in the management machine; the I-type substation is provided with a first current transformer, a transformer, a second current transformer and electric energy quality treatment equipment; the II-type substation is provided with a transformer, a second current transformer and electric energy quality treatment equipment; the management machine is in data communication with the electric energy quality treatment equipment; the secondary side of the first current transformer is connected with electric energy quality treatment equipment; the high-voltage s