LCC-MMC three-terminal hybrid flexible renewable energy remote delivery method

The invention belongs to the field of high-proportion wind power and photovoltaic access power systems and cross-regional and long-distance delivery and absorption, and particularly relates to an LCC-MMC three-terminal hybrid flexible renewable energy remote delivery method. The method comprises the steps of 1 taking an actually running LCC-MMC cloud wide direct current project as a background, accessing new energy into a sending end system, taking a receiving end system as a converter station, and establishing a model; 2 performing constant direct current control on the rectification side ofthe sending end system, and adjusting a circuit to a normal value; 3 controlling the inner loop current of the inversion side of the receiving end system; and 4 controlling the outer loop current of the inversion side of the receiving end system. The purposes of reducing the probability of continuous commutation failure of a multi-infeed direct current system and reducing the manufacturing cost are achieved.