Pile leg floating-state lifting power supply method for self-elevating wind power installation platform

The invention discloses a pile leg floating state lifting power supply power supply method for a self-elevating wind power installation platform, which comprises lifting systems of four pile legs and medium-voltage distribution boards for supplying power to the lifting systems, and the lifting systems of a starboard and a larboard of a stern are electrically connected with the first medium-voltage distribution board and the second medium-voltage distribution board respectively; the lifting systems of the portboard and the starboard of the bow are electrically connected with the second medium-voltage distribution board and the third medium-voltage distribution board respectively; according to disconnection of interconnection switches of medium-voltage busbars of the first medium-voltage distribution board, the second medium-voltage distribution board and the third medium-voltage distribution board, the lifting system is divided into three independent systems to operate, and selective power supply work of every