Low-temperature-resistant shielding flexible cable for new energy wind power generation and manufacturing method thereof

Abstract

The application belongs to the technical field of cables, and discloses a low-temperature-resistant torsion shielding flexible cable for new energy wind power generation and a manufacturing method, the cable comprising, from inside to outside, a composite conductor, a semi-conductive shielding buffer layer, an inner insulation layer, a friction energy conversion lubricating layer, an elastic braided shielding layer, a middle insulation layer, a shape memory alloy compensation braided shielding layer, an outer insulation layer and an ultralow-temperature sheath layer; the composite conductor is composed of coaxial sleeves of multiple layers of stranded bodies, and piezoelectric-lubricating dual-functional composite particles are filled in discrete gaps between adjacent stranded bodies. The application provides an integrated low-temperature-resistant torsion shielding flexible cable which can actively utilize torsion energy, realize self-adaptive long-acting lubrication, ensure the dynamic integrity of the shielding layer and take into account the adaptability to extreme low-temperature environments, and can meet the stringent requirements of wind turbine generator system variable pitch systems in high-altitude, polar and other alpine regions on cable service life and reliability, and has outstanding substantial progress and industrial application value.

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